ENER-SAVE HYDROCARBON Air Cooled Screw Chiller Your Green Input to Chiller ever found in the market Cooling

Capacity 77RT to 172RT

To eliminate the threat of environmental impact by utilizing environmental friendly

refrigerant gas- Hydrocarbon Refrigerant Gas

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 1 Switch to Green Save the Environment Save The EARTH

Table of Contents

1 Table of Contents Page 1

2 Model Description Page 2

3 Award winning products Page 3

4 Superior Features Page 4 ndash Page 5

5 Technical Specification Page 6 ndash Page 7

6 Compressor Selection Page 7 ndash Page 10

7 Refrigerant Gas Selection Page 11 ndash Page 12

8 Label on Hydrocarbon Chiller Page 12 ndash Page 13

9 Safety Guideline and Minimum Room Ventilation Page 14 ndash Page 15

10 Authorized Distributor and Qualified Installer Page 16

11 Appendix

Applicable to Commercial and Industrial Building (Category C) chiller located at non-public

areas of supermarket plant rooms and machinery room

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 2 Switch to Green Save the Environment Save The EARTH

Model Description

System Designed comply to Malaysia Standard MS 26782017

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 3 Switch to Green Save the Environment Save The EARTH

AWARD WINING PRODUCT

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 4 Switch to Green Save the Environment Save The EARTH

Superior Feature

ESWC Hydrocarbon series designed using Semi- Hermetic Screw compressor System designs

consist of several systems and every system operated by single compressor It further reduces

the refrigerant gas charge amount and increases the feasibility of easy maintenance and

servicing

Screw compressor ndashdeploy to serve the main compression drive to ESWC Hydrocarbon Chiller

low noise level high EER and high reliability and tested in many applications The electrical

termination point is sealed by fire rating insulation Series HC1 which is utilizing the HC-12a as

refrigerant further reduce extremely high-pressure hazard if compares to system using HC-

22a and HFC R410a

Chiller capacity control design is based on number of compressor and the control step from

thermostat controller Other safety gadget to protect the chiller system is flow rate sensor

pressure switch anti-freeze sensor and HC leak detector

HC leak detector can be linked to exhaust fan or other control circuit for refrigerant gas

evacuation and indication

Picture 4 ndash Isobutene Propane refrigerant gas sensor

Control Panel

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 5 Switch to Green Save the Environment Save The EARTH

bull Interactive screen

bull User friendly interface

bull Simple operation

bull Graph and digital numerical display for chilled water temperature

bull Display for Cut-OFF and Cut-IN temperature set-points

bull Temperature in Centigrade unit

bull System run time display in Days Hours and Minutes

bull Indicator lights to show the number of running compressors compressorrsquos status running status system error and compressorrsquos maintenance indicator

bull Active Alarm and History Alarm display to show the current and previous error

bull Parameters is set to factory default if the PLC is out of battery for 10 days

bull Easy set point setting for Cut-OFF Cut-IN temperatures and Cut-IN Timers

bull Password features to provide safety for the system parameters from being adjusted by unauthorized personal

bull PLC IO indicators to show the current PLC IO status

Remarks Ener-Save may change the controller to Carel Controller without prior notice

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 6 Switch to Green Save the Environment Save The EARTH

Technical Specification

Model (77RT to 172RT)

ESAC77C50SHCx

ESAC86C50CHCx

ESAC86C50SHCx

ESAC155C50SHCx

ESAC172C50SHCx

General

Capacity RT +-5 776 867 865 1552 1729

BTUh 931200 1040400 1038000 1862400 2074800

Rated Power kW 1020 1148 1091 2040 2182

Operating Power kW 878 980 933 1756 1867

No Of refrigerant circuits

1

2 1 2 2

Number of compressor

1 2 1 2 2

Capacity Steps of Compressor

100 ndash 75-50 ndash 0

100 ndash 75-50 ndash 0

100 ndash 75-50 ndash 0

100 ndash 75-50 ndash 25 ndash

0

100 ndash 75-50 ndash 25 ndash

0

Compressor

Type Semi-Hermetic

Screw

Semi-Hermetic

Screw

Semi-Hermetic

Screw

Semi-Hermetic

Screw

Semi-Hermetic

Screw

Compressor Model RC2-310B RC2-180B RC2-340B RC2-310B RC2-340B

Connection Star-Delta Star-Delta Star-Delta Star-Delta Star-Delta

Voltage Range 342 ndash 462Vac

Power Supply 380 415V 3ph 50Hz

Air Cooled Condenser V Coil 16FPI

No Coil 4 4 4 8 8

Face Area (m2) 1072 1208 1208 214 242

No of Fan Motor x Power (kW)

6 x 32 6 x 32 6 x 32 12 x 32 12 x 332

Air Flow (m3h) 136000 146200 146200 272000 292400

Cooling Shell amp Tube

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 7 Switch to Green Save the Environment Save The EARTH

Recommended Full Load Differential Temp Degree Celsius

45 ndash 6 45 ndash 6 45 ndash 6 45 ndash 6 45 ndash 6

Chilled Water LCWT Degree Celsius

70

Water Flow Rate usgpm

2061 2303 2298 4122 4592

Number of Cooling shell and tube

1 1 1 1 1

Water Connection (Flange) Size Inch

4rdquo 4rdquo 4rdquo 6rdquo 6rdquo

Refrigerant

HC-22aR290 Weight kg per system

17 13 x 2 18 22 x 2 18 x 2

Category C C C C C

Dimension

Height mm 1920 1920 1920 1920 1920

Width mm 2500 2500 2500 5000 5000

Length mm 1450 2290 2290 1450 2290

Weight kg 820 960 1120 1640 1820

Notes

1 1 RT = 3024kcalh = 3517kW 1m3 H2O 98kPa

2 Ambient Temperature of 40 Degree Celsius

3 Specification subject to change without prior notice

4 Compressor Oil SUNISO 4GS

5 Chiller Overview subject to change without prior notice due to positioning of chiller

compressor chiller barrel and condenser coil and fins

6 Designed Chilled Water Differential Temperature = 5 degree Celsius (12 oC7 oC)

Compressor Selection Highlights of RC2 Series Screw Compressor WWWHANBELLCOM

High-efficiency Motor 1062672 Available for part winding start or star delta start 1062672 Custom-made for specified voltage and frequency of power 1062672 Two options AampB motor for RC2-100~RC2-930 Four options A1 A2 amp B1 B2 motors for RC2-1020 ~1530

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 8 Switch to Green Save the Environment Save The EARTH

1062672 Optimal slot design for passage of refrigerant inside motor casing 1062672 Refrigerant flows through outside of motor winding to provide the most efficient motor cooling 1062672 Sliding-fit stator easier for installation and removal

Part-load Effective Economizer Operation 1062672 Enhance cooling capacity as well as energy efficiency 1062672 Sustain optimum medium pressure by vapor injection through specially-designed slots in slide valve and compression casing 1062672 Effective under partial load and full load

Dual Capacity Control 1062672 Flanged-on solenoid coil easy for installation 1062672 3-step 4-step or continuous (33~100 25~100) capacity control system 1062672 Interchangeable by varying control logic without modification of solenoid valves

Durable Bearing Structure

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 9 Switch to Green Save the Environment Save The EARTH

1062672 High-quality bearings (radial and axial resistance) 1062672 Additional bearing for backward rotation 1062672 ________ _______________________ 1062672 Heavy-duty design 1062672 Longer bearing life compared to traditional 9-bearing design

High-performance Integral Oil Separator 1062672 Detachable demister for cleaning 1062672 Finer size of mesh 1062672 Low pressure drop and oil carry-over 1062672 Three-staged oil separation (RC2-1020~RC2-1530)

Complete Protection amp Accessories 1 Motor temperature sensor (optional) 106267210626721062672106267210626721062672 ldquoBuilt-inrdquo Pt100 or Pt1000 installed in motor winding 106267210626721062672106267210626721062672 Accurately registers motor temperature 106267210626721062672106267210626721062672 Controller can precisely initiate liquid injection to motor accordingly 2 Discharge Temperature Thermistor amp Motor Temperature Thermistor 106267210626721062672106267210626721062672 Totally integrated 106267210626721062672106267210626721062672 Effectively protect compressor in advance when any abnormal alarm occurs

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 10 Switch to Green Save the Environment Save The EARTH

3 Liquid Injection and Oil Cooler Function (Port amp Stop Pin) 106267210626721062672106267210626721062672 Both available on every Hanbell screw compressor 4 Oil Level Switch 106267210626721062672106267210626721062672 Ensure sufficient lubricant in compressor for better lubrication capacity control cooling and sealing 5 Heater (150W amp 300W) 106267210626721062672106267210626721062672 Increase lubricantrsquos flow-ability when compressor restarts after long-term stop 6 Connection for Pressure Differential Switch 106267210626721062672106267210626721062672 Easily detect clog in oil filter 106267210626721062672106267210626721062672 Assure effective capacity modulation and lubrication

Other Advantages 1062672 Low noise level and minimum vibration 1062672 Fewer quantity of parts in screw compressor than those in reciprocating compressor 1062672 Easy for maintenance and overhaul 1062672 Compact geometry easy for layout

Approval and Certification 1062672 Production by SOP conformed to major quality standards 1062672 Approved by ISO 9001-2000 UL CE(PED) Electronic Apparatus for Explosive Atmospheres (EX China) Lloydrsquos Register (vessel) Symbol of Excellence in Taiwan

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 11 Switch to Green Save the Environment Save The EARTH

Refrigerant Gas Selection

Hydrocarbon Refrigerant Gas HC refrigerant is designed to replace ozone-depleting global-warming refrigerants HC

Refrigerants are made of natural organic compounds mdash not a blend of pre-existing

chemically based synthetic refrigerants

In fact HC Refrigerant products can actually enhance the life and performance of air-

conditioning and refrigeration system Thanks to an anti-friction additive and their excellent

thermal and chemical stability After more than 12 years of extensive testing itrsquos clear that HC

Refrigerant Products provide more efficient performance than the man-made synthetic

refrigerants they replace

OR ENER-SAVE R600a is designed as direct replace and

retrofit refrigerant gas for Ozone Depleting refrigerant R12 (CFC) or Global Warming

refrigerant gas R134a (HFC)

OR ENER-SAVE R290 is designed as direct replace and

retrofit refrigerant gas for ozone depleting refrigerant gas R22 (HCFC) Global Warming

Refrigerant gas R410a R411a and R407C

A Natural Solution to a Global Dilemma

A growing awareness of the environmental issues facing our planet has motivated many world

leaders and governments to embrace hydrocarbon technology as a long-term solution to

environmental concerns The European Common has adopted a new Standard EN 378 which

provides guidelines for the use and installation of hydrocarbon refrigerants in over 14

European countries In the past five years alone more than 8 million refrigerators and freezers

were manufactured in Germany and Denmark utilizing hydrocarbon technology

Features of HC Refrigerant Benefits

bull Highly efficient

bull Non-ozone depleting

bull Non-corrosive

bull Non-toxic

bull Non-global warming

bull Molecule Lighter

bull Energy Saving

bull Environmental Friendly

bull Enhance Life and Performance of AC System

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 12 Switch to Green Save the Environment Save The EARTH

In the US ASHRAE has rewritten Standard 15 to provide a framework for greater use of

hydrocarbon refrigerants In the past ten years more than one million gallons of our HC

Refrigerant has been used to cool between 3 million and 5 million motor vehicles throughout

North America During that period there have been no reported accidents or injuries

attributed to the use of our products

Hydrocarbon refrigerant gas helps to stop ozone depleting (ODP= 0) amp reduce the global-

warming crisis (GWP lt 3) fully compliance with UN Montreal Protocol amp Kyoto Protocol

Refrigerants Hydrocarbons (HC)

Chlorofluorocarbons (CFC)

Hydro Chlorofluorocarbons

(HCFC)

Hydro Fluorocarbons

(HFC)

ODP 0 09 004 0

GWP (CO2 = 1 100 year Basic)

3 10600 1800 1600

Ozone Depleting Substances controlled by UN Montreal Protocol

Global Warming Substances gt150 controlled by Kyoto Protocol

Label on Hydrocarbon Chiller

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 13 Switch to Green Save the Environment Save The EARTH

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 14 Switch to Green Save the Environment Save The EARTH

Safety Guideline and Minimum Room Ventilation

General Safety Issues All hydrocarbon refrigerants are highly flammable but non-toxic This gives them an ldquoA3rdquo classification according to MS 26782017 Reference should be made to this Standard which details the requirements for the safe use of flammable refrigerants in commercial and industrial applications For more detailed information on these safety requirements refer to the Institute of Refrigeration Safety Code for A3 refrigerants There are many other safety requirements that should be considered in the design and construction of all refrigerating and air conditioning installations regardless of the flammability of the refrigerant used General safety standards and codes of practice referenced in this document should be consulted for this additional information Allowable Refrigerant Charge The limiting factor associated with the use of hydrocarbon refrigerants is the refrigerant charge size the occupancy category and the room size The charge size requirements according to MS 26782017 are detailed in Table below Table Charge size requirements for various location categories

Systems with charge sizes of 015kg or less can be installed in any size of room Systems with charge size of more than 015kg room size should be such that a sudden loss of refrigerant shall not raise the mean concentration in the room above the practical limit (approximately 0008kgm3) Room Ventilation and Refrigerant Detection ldquoRefrigeration machinery rooms should be vented to the outside air by means of natural or mechanical ventilation Free Air Movement (All) ldquoEnsure that free air movement can be achieved around all refrigerant containing parts of the system Openings for outside air should be positioned such that short circuiting does not occurrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 15 Switch to Green Save the Environment Save The EARTH

Mechanical Ventilation (All) Where the refrigerant charge of a single refrigerating circuit exceeds the mass in Equation below a machinery room containing HC refrigerants must employ mechanical ventilation capable of providing the minimum ventilation rate The minimum ventilation rate depends upon the type of electrical protection within the machinery room Where the installation is protected according to the mechanical ventilation rate should be equivalent to at least 10-room volume changes per hour

Eg Minimum ventilation fan flow rate for extraction Vmin

Vmin = 0004 x m LFL

Where

Vmin = minimum volume flow rate of extract fan m3 s

m = largest mass of refrigerant within any single circuit of any refrigerating system kg

(lb)

LFL = Lower Flammability Limit of refrigerant kgm3

Vmin = = 0004 x 22kg 0038kgm3 = 232m3s

Suggested Ventilation Fan should be more than 232 m3s flow rate for

Ener-Save Hydrocarbon Air Cooled Screw Chiller

ldquoIn all cases a refrigerant detector should be linked into the initiation of mechanical ventilation The location of the sampling point should be at low level (where heavier than air refrigerants are used) The ventilation must either be running continuously or use a refrigerant detector starting device set at 25 of the Lower Flammability Level (LFL) Lower ventilation rates can be initiated upon detection of lower refrigerant concentrationsrdquo ldquoThe inlet of the extract ventilation should be located at floor level and ducted to a safe location Discharge points for vented air or openings for fresh air shall be positioned so as to avoid discharged air being drawn back in the building such as ventilation system inlets opening windows and doors and sources of ignition The rejection of flammable materials shall not present a hazard externally such as entering a building or being in contact with sources of ignition The mechanical ventilation system should be designed to maintain the room at a lower pressure than surrounding areas so that there will be no escape of leaked refrigerants to other areas Fans for mechanical ventilation should use motors of non-sparking type and the fan blades and cowling should be designed so as to avoid sparking as a result of metal-to-metal contact Mechanical ventilation equipment should be installed with independent emergency control located outside of and near to the machinery roomrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 16 Switch to Green Save the Environment Save The EARTH

Authorized and Qualified Installer

Product Manufacturer and HC Trainer

ENER-SAVE SDN BHD

(661220-A) Tel +607-557 2669 Fax +607-558 2669

Todays Savings Tomorrows Sustainable Living Switch To Green Save The Environment Save The Earth We Specialise in Natural Green Refrigerant - Hydrocarbon

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 1 Switch to Green Save the Environment Save The EARTH

Table of Contents

1 Table of Contents Page 1

2 Model Description Page 2

3 Award winning products Page 3

4 Superior Features Page 4 ndash Page 5

5 Technical Specification Page 6 ndash Page 7

6 Compressor Selection Page 7 ndash Page 10

7 Refrigerant Gas Selection Page 11 ndash Page 12

8 Label on Hydrocarbon Chiller Page 12 ndash Page 13

9 Safety Guideline and Minimum Room Ventilation Page 14 ndash Page 15

10 Authorized Distributor and Qualified Installer Page 16

11 Appendix

Applicable to Commercial and Industrial Building (Category C) chiller located at non-public

areas of supermarket plant rooms and machinery room

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 2 Switch to Green Save the Environment Save The EARTH

Model Description

System Designed comply to Malaysia Standard MS 26782017

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 3 Switch to Green Save the Environment Save The EARTH

AWARD WINING PRODUCT

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 4 Switch to Green Save the Environment Save The EARTH

Superior Feature

ESWC Hydrocarbon series designed using Semi- Hermetic Screw compressor System designs

consist of several systems and every system operated by single compressor It further reduces

the refrigerant gas charge amount and increases the feasibility of easy maintenance and

servicing

Screw compressor ndashdeploy to serve the main compression drive to ESWC Hydrocarbon Chiller

low noise level high EER and high reliability and tested in many applications The electrical

termination point is sealed by fire rating insulation Series HC1 which is utilizing the HC-12a as

refrigerant further reduce extremely high-pressure hazard if compares to system using HC-

22a and HFC R410a

Chiller capacity control design is based on number of compressor and the control step from

thermostat controller Other safety gadget to protect the chiller system is flow rate sensor

pressure switch anti-freeze sensor and HC leak detector

HC leak detector can be linked to exhaust fan or other control circuit for refrigerant gas

evacuation and indication

Picture 4 ndash Isobutene Propane refrigerant gas sensor

Control Panel

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 5 Switch to Green Save the Environment Save The EARTH

bull Interactive screen

bull User friendly interface

bull Simple operation

bull Graph and digital numerical display for chilled water temperature

bull Display for Cut-OFF and Cut-IN temperature set-points

bull Temperature in Centigrade unit

bull System run time display in Days Hours and Minutes

bull Indicator lights to show the number of running compressors compressorrsquos status running status system error and compressorrsquos maintenance indicator

bull Active Alarm and History Alarm display to show the current and previous error

bull Parameters is set to factory default if the PLC is out of battery for 10 days

bull Easy set point setting for Cut-OFF Cut-IN temperatures and Cut-IN Timers

bull Password features to provide safety for the system parameters from being adjusted by unauthorized personal

bull PLC IO indicators to show the current PLC IO status

Remarks Ener-Save may change the controller to Carel Controller without prior notice

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 6 Switch to Green Save the Environment Save The EARTH

Technical Specification

Model (77RT to 172RT)

ESAC77C50SHCx

ESAC86C50CHCx

ESAC86C50SHCx

ESAC155C50SHCx

ESAC172C50SHCx

General

Capacity RT +-5 776 867 865 1552 1729

BTUh 931200 1040400 1038000 1862400 2074800

Rated Power kW 1020 1148 1091 2040 2182

Operating Power kW 878 980 933 1756 1867

No Of refrigerant circuits

1

2 1 2 2

Number of compressor

1 2 1 2 2

Capacity Steps of Compressor

100 ndash 75-50 ndash 0

100 ndash 75-50 ndash 0

100 ndash 75-50 ndash 0

100 ndash 75-50 ndash 25 ndash

0

100 ndash 75-50 ndash 25 ndash

0

Compressor

Type Semi-Hermetic

Screw

Semi-Hermetic

Screw

Semi-Hermetic

Screw

Semi-Hermetic

Screw

Semi-Hermetic

Screw

Compressor Model RC2-310B RC2-180B RC2-340B RC2-310B RC2-340B

Connection Star-Delta Star-Delta Star-Delta Star-Delta Star-Delta

Voltage Range 342 ndash 462Vac

Power Supply 380 415V 3ph 50Hz

Air Cooled Condenser V Coil 16FPI

No Coil 4 4 4 8 8

Face Area (m2) 1072 1208 1208 214 242

No of Fan Motor x Power (kW)

6 x 32 6 x 32 6 x 32 12 x 32 12 x 332

Air Flow (m3h) 136000 146200 146200 272000 292400

Cooling Shell amp Tube

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 7 Switch to Green Save the Environment Save The EARTH

Recommended Full Load Differential Temp Degree Celsius

45 ndash 6 45 ndash 6 45 ndash 6 45 ndash 6 45 ndash 6

Chilled Water LCWT Degree Celsius

70

Water Flow Rate usgpm

2061 2303 2298 4122 4592

Number of Cooling shell and tube

1 1 1 1 1

Water Connection (Flange) Size Inch

4rdquo 4rdquo 4rdquo 6rdquo 6rdquo

Refrigerant

HC-22aR290 Weight kg per system

17 13 x 2 18 22 x 2 18 x 2

Category C C C C C

Dimension

Height mm 1920 1920 1920 1920 1920

Width mm 2500 2500 2500 5000 5000

Length mm 1450 2290 2290 1450 2290

Weight kg 820 960 1120 1640 1820

Notes

1 1 RT = 3024kcalh = 3517kW 1m3 H2O 98kPa

2 Ambient Temperature of 40 Degree Celsius

3 Specification subject to change without prior notice

4 Compressor Oil SUNISO 4GS

5 Chiller Overview subject to change without prior notice due to positioning of chiller

compressor chiller barrel and condenser coil and fins

6 Designed Chilled Water Differential Temperature = 5 degree Celsius (12 oC7 oC)

Compressor Selection Highlights of RC2 Series Screw Compressor WWWHANBELLCOM

High-efficiency Motor 1062672 Available for part winding start or star delta start 1062672 Custom-made for specified voltage and frequency of power 1062672 Two options AampB motor for RC2-100~RC2-930 Four options A1 A2 amp B1 B2 motors for RC2-1020 ~1530

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 8 Switch to Green Save the Environment Save The EARTH

1062672 Optimal slot design for passage of refrigerant inside motor casing 1062672 Refrigerant flows through outside of motor winding to provide the most efficient motor cooling 1062672 Sliding-fit stator easier for installation and removal

Part-load Effective Economizer Operation 1062672 Enhance cooling capacity as well as energy efficiency 1062672 Sustain optimum medium pressure by vapor injection through specially-designed slots in slide valve and compression casing 1062672 Effective under partial load and full load

Dual Capacity Control 1062672 Flanged-on solenoid coil easy for installation 1062672 3-step 4-step or continuous (33~100 25~100) capacity control system 1062672 Interchangeable by varying control logic without modification of solenoid valves

Durable Bearing Structure

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 9 Switch to Green Save the Environment Save The EARTH

1062672 High-quality bearings (radial and axial resistance) 1062672 Additional bearing for backward rotation 1062672 ________ _______________________ 1062672 Heavy-duty design 1062672 Longer bearing life compared to traditional 9-bearing design

High-performance Integral Oil Separator 1062672 Detachable demister for cleaning 1062672 Finer size of mesh 1062672 Low pressure drop and oil carry-over 1062672 Three-staged oil separation (RC2-1020~RC2-1530)

Complete Protection amp Accessories 1 Motor temperature sensor (optional) 106267210626721062672106267210626721062672 ldquoBuilt-inrdquo Pt100 or Pt1000 installed in motor winding 106267210626721062672106267210626721062672 Accurately registers motor temperature 106267210626721062672106267210626721062672 Controller can precisely initiate liquid injection to motor accordingly 2 Discharge Temperature Thermistor amp Motor Temperature Thermistor 106267210626721062672106267210626721062672 Totally integrated 106267210626721062672106267210626721062672 Effectively protect compressor in advance when any abnormal alarm occurs

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 10 Switch to Green Save the Environment Save The EARTH

3 Liquid Injection and Oil Cooler Function (Port amp Stop Pin) 106267210626721062672106267210626721062672 Both available on every Hanbell screw compressor 4 Oil Level Switch 106267210626721062672106267210626721062672 Ensure sufficient lubricant in compressor for better lubrication capacity control cooling and sealing 5 Heater (150W amp 300W) 106267210626721062672106267210626721062672 Increase lubricantrsquos flow-ability when compressor restarts after long-term stop 6 Connection for Pressure Differential Switch 106267210626721062672106267210626721062672 Easily detect clog in oil filter 106267210626721062672106267210626721062672 Assure effective capacity modulation and lubrication

Other Advantages 1062672 Low noise level and minimum vibration 1062672 Fewer quantity of parts in screw compressor than those in reciprocating compressor 1062672 Easy for maintenance and overhaul 1062672 Compact geometry easy for layout

Approval and Certification 1062672 Production by SOP conformed to major quality standards 1062672 Approved by ISO 9001-2000 UL CE(PED) Electronic Apparatus for Explosive Atmospheres (EX China) Lloydrsquos Register (vessel) Symbol of Excellence in Taiwan

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 11 Switch to Green Save the Environment Save The EARTH

Refrigerant Gas Selection

Hydrocarbon Refrigerant Gas HC refrigerant is designed to replace ozone-depleting global-warming refrigerants HC

Refrigerants are made of natural organic compounds mdash not a blend of pre-existing

chemically based synthetic refrigerants

In fact HC Refrigerant products can actually enhance the life and performance of air-

conditioning and refrigeration system Thanks to an anti-friction additive and their excellent

thermal and chemical stability After more than 12 years of extensive testing itrsquos clear that HC

Refrigerant Products provide more efficient performance than the man-made synthetic

refrigerants they replace

OR ENER-SAVE R600a is designed as direct replace and

retrofit refrigerant gas for Ozone Depleting refrigerant R12 (CFC) or Global Warming

refrigerant gas R134a (HFC)

OR ENER-SAVE R290 is designed as direct replace and

retrofit refrigerant gas for ozone depleting refrigerant gas R22 (HCFC) Global Warming

Refrigerant gas R410a R411a and R407C

A Natural Solution to a Global Dilemma

A growing awareness of the environmental issues facing our planet has motivated many world

leaders and governments to embrace hydrocarbon technology as a long-term solution to

environmental concerns The European Common has adopted a new Standard EN 378 which

provides guidelines for the use and installation of hydrocarbon refrigerants in over 14

European countries In the past five years alone more than 8 million refrigerators and freezers

were manufactured in Germany and Denmark utilizing hydrocarbon technology

Features of HC Refrigerant Benefits

bull Highly efficient

bull Non-ozone depleting

bull Non-corrosive

bull Non-toxic

bull Non-global warming

bull Molecule Lighter

bull Energy Saving

bull Environmental Friendly

bull Enhance Life and Performance of AC System

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 12 Switch to Green Save the Environment Save The EARTH

In the US ASHRAE has rewritten Standard 15 to provide a framework for greater use of

hydrocarbon refrigerants In the past ten years more than one million gallons of our HC

Refrigerant has been used to cool between 3 million and 5 million motor vehicles throughout

North America During that period there have been no reported accidents or injuries

attributed to the use of our products

Hydrocarbon refrigerant gas helps to stop ozone depleting (ODP= 0) amp reduce the global-

warming crisis (GWP lt 3) fully compliance with UN Montreal Protocol amp Kyoto Protocol

Refrigerants Hydrocarbons (HC)

Chlorofluorocarbons (CFC)

Hydro Chlorofluorocarbons

(HCFC)

Hydro Fluorocarbons

(HFC)

ODP 0 09 004 0

GWP (CO2 = 1 100 year Basic)

3 10600 1800 1600

Ozone Depleting Substances controlled by UN Montreal Protocol

Global Warming Substances gt150 controlled by Kyoto Protocol

Label on Hydrocarbon Chiller

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 13 Switch to Green Save the Environment Save The EARTH

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 14 Switch to Green Save the Environment Save The EARTH

Safety Guideline and Minimum Room Ventilation

General Safety Issues All hydrocarbon refrigerants are highly flammable but non-toxic This gives them an ldquoA3rdquo classification according to MS 26782017 Reference should be made to this Standard which details the requirements for the safe use of flammable refrigerants in commercial and industrial applications For more detailed information on these safety requirements refer to the Institute of Refrigeration Safety Code for A3 refrigerants There are many other safety requirements that should be considered in the design and construction of all refrigerating and air conditioning installations regardless of the flammability of the refrigerant used General safety standards and codes of practice referenced in this document should be consulted for this additional information Allowable Refrigerant Charge The limiting factor associated with the use of hydrocarbon refrigerants is the refrigerant charge size the occupancy category and the room size The charge size requirements according to MS 26782017 are detailed in Table below Table Charge size requirements for various location categories

Systems with charge sizes of 015kg or less can be installed in any size of room Systems with charge size of more than 015kg room size should be such that a sudden loss of refrigerant shall not raise the mean concentration in the room above the practical limit (approximately 0008kgm3) Room Ventilation and Refrigerant Detection ldquoRefrigeration machinery rooms should be vented to the outside air by means of natural or mechanical ventilation Free Air Movement (All) ldquoEnsure that free air movement can be achieved around all refrigerant containing parts of the system Openings for outside air should be positioned such that short circuiting does not occurrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 15 Switch to Green Save the Environment Save The EARTH

Mechanical Ventilation (All) Where the refrigerant charge of a single refrigerating circuit exceeds the mass in Equation below a machinery room containing HC refrigerants must employ mechanical ventilation capable of providing the minimum ventilation rate The minimum ventilation rate depends upon the type of electrical protection within the machinery room Where the installation is protected according to the mechanical ventilation rate should be equivalent to at least 10-room volume changes per hour

Eg Minimum ventilation fan flow rate for extraction Vmin

Vmin = 0004 x m LFL

Where

Vmin = minimum volume flow rate of extract fan m3 s

m = largest mass of refrigerant within any single circuit of any refrigerating system kg

(lb)

LFL = Lower Flammability Limit of refrigerant kgm3

Vmin = = 0004 x 22kg 0038kgm3 = 232m3s

Suggested Ventilation Fan should be more than 232 m3s flow rate for

Ener-Save Hydrocarbon Air Cooled Screw Chiller

ldquoIn all cases a refrigerant detector should be linked into the initiation of mechanical ventilation The location of the sampling point should be at low level (where heavier than air refrigerants are used) The ventilation must either be running continuously or use a refrigerant detector starting device set at 25 of the Lower Flammability Level (LFL) Lower ventilation rates can be initiated upon detection of lower refrigerant concentrationsrdquo ldquoThe inlet of the extract ventilation should be located at floor level and ducted to a safe location Discharge points for vented air or openings for fresh air shall be positioned so as to avoid discharged air being drawn back in the building such as ventilation system inlets opening windows and doors and sources of ignition The rejection of flammable materials shall not present a hazard externally such as entering a building or being in contact with sources of ignition The mechanical ventilation system should be designed to maintain the room at a lower pressure than surrounding areas so that there will be no escape of leaked refrigerants to other areas Fans for mechanical ventilation should use motors of non-sparking type and the fan blades and cowling should be designed so as to avoid sparking as a result of metal-to-metal contact Mechanical ventilation equipment should be installed with independent emergency control located outside of and near to the machinery roomrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 16 Switch to Green Save the Environment Save The EARTH

Authorized and Qualified Installer

Product Manufacturer and HC Trainer

ENER-SAVE SDN BHD

(661220-A) Tel +607-557 2669 Fax +607-558 2669

Todays Savings Tomorrows Sustainable Living Switch To Green Save The Environment Save The Earth We Specialise in Natural Green Refrigerant - Hydrocarbon

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 2 Switch to Green Save the Environment Save The EARTH

Model Description

System Designed comply to Malaysia Standard MS 26782017

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 3 Switch to Green Save the Environment Save The EARTH

AWARD WINING PRODUCT

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 4 Switch to Green Save the Environment Save The EARTH

Superior Feature

ESWC Hydrocarbon series designed using Semi- Hermetic Screw compressor System designs

consist of several systems and every system operated by single compressor It further reduces

the refrigerant gas charge amount and increases the feasibility of easy maintenance and

servicing

Screw compressor ndashdeploy to serve the main compression drive to ESWC Hydrocarbon Chiller

low noise level high EER and high reliability and tested in many applications The electrical

termination point is sealed by fire rating insulation Series HC1 which is utilizing the HC-12a as

refrigerant further reduce extremely high-pressure hazard if compares to system using HC-

22a and HFC R410a

Chiller capacity control design is based on number of compressor and the control step from

thermostat controller Other safety gadget to protect the chiller system is flow rate sensor

pressure switch anti-freeze sensor and HC leak detector

HC leak detector can be linked to exhaust fan or other control circuit for refrigerant gas

evacuation and indication

Picture 4 ndash Isobutene Propane refrigerant gas sensor

Control Panel

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 5 Switch to Green Save the Environment Save The EARTH

bull Interactive screen

bull User friendly interface

bull Simple operation

bull Graph and digital numerical display for chilled water temperature

bull Display for Cut-OFF and Cut-IN temperature set-points

bull Temperature in Centigrade unit

bull System run time display in Days Hours and Minutes

bull Indicator lights to show the number of running compressors compressorrsquos status running status system error and compressorrsquos maintenance indicator

bull Active Alarm and History Alarm display to show the current and previous error

bull Parameters is set to factory default if the PLC is out of battery for 10 days

bull Easy set point setting for Cut-OFF Cut-IN temperatures and Cut-IN Timers

bull Password features to provide safety for the system parameters from being adjusted by unauthorized personal

bull PLC IO indicators to show the current PLC IO status

Remarks Ener-Save may change the controller to Carel Controller without prior notice

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 6 Switch to Green Save the Environment Save The EARTH

Technical Specification

Model (77RT to 172RT)

ESAC77C50SHCx

ESAC86C50CHCx

ESAC86C50SHCx

ESAC155C50SHCx

ESAC172C50SHCx

General

Capacity RT +-5 776 867 865 1552 1729

BTUh 931200 1040400 1038000 1862400 2074800

Rated Power kW 1020 1148 1091 2040 2182

Operating Power kW 878 980 933 1756 1867

No Of refrigerant circuits

1

2 1 2 2

Number of compressor

1 2 1 2 2

Capacity Steps of Compressor

100 ndash 75-50 ndash 0

100 ndash 75-50 ndash 0

100 ndash 75-50 ndash 0

100 ndash 75-50 ndash 25 ndash

0

100 ndash 75-50 ndash 25 ndash

0

Compressor

Type Semi-Hermetic

Screw

Semi-Hermetic

Screw

Semi-Hermetic

Screw

Semi-Hermetic

Screw

Semi-Hermetic

Screw

Compressor Model RC2-310B RC2-180B RC2-340B RC2-310B RC2-340B

Connection Star-Delta Star-Delta Star-Delta Star-Delta Star-Delta

Voltage Range 342 ndash 462Vac

Power Supply 380 415V 3ph 50Hz

Air Cooled Condenser V Coil 16FPI

No Coil 4 4 4 8 8

Face Area (m2) 1072 1208 1208 214 242

No of Fan Motor x Power (kW)

6 x 32 6 x 32 6 x 32 12 x 32 12 x 332

Air Flow (m3h) 136000 146200 146200 272000 292400

Cooling Shell amp Tube

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 7 Switch to Green Save the Environment Save The EARTH

Recommended Full Load Differential Temp Degree Celsius

45 ndash 6 45 ndash 6 45 ndash 6 45 ndash 6 45 ndash 6

Chilled Water LCWT Degree Celsius

70

Water Flow Rate usgpm

2061 2303 2298 4122 4592

Number of Cooling shell and tube

1 1 1 1 1

Water Connection (Flange) Size Inch

4rdquo 4rdquo 4rdquo 6rdquo 6rdquo

Refrigerant

HC-22aR290 Weight kg per system

17 13 x 2 18 22 x 2 18 x 2

Category C C C C C

Dimension

Height mm 1920 1920 1920 1920 1920

Width mm 2500 2500 2500 5000 5000

Length mm 1450 2290 2290 1450 2290

Weight kg 820 960 1120 1640 1820

Notes

1 1 RT = 3024kcalh = 3517kW 1m3 H2O 98kPa

2 Ambient Temperature of 40 Degree Celsius

3 Specification subject to change without prior notice

4 Compressor Oil SUNISO 4GS

5 Chiller Overview subject to change without prior notice due to positioning of chiller

compressor chiller barrel and condenser coil and fins

6 Designed Chilled Water Differential Temperature = 5 degree Celsius (12 oC7 oC)

Compressor Selection Highlights of RC2 Series Screw Compressor WWWHANBELLCOM

High-efficiency Motor 1062672 Available for part winding start or star delta start 1062672 Custom-made for specified voltage and frequency of power 1062672 Two options AampB motor for RC2-100~RC2-930 Four options A1 A2 amp B1 B2 motors for RC2-1020 ~1530

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 8 Switch to Green Save the Environment Save The EARTH

1062672 Optimal slot design for passage of refrigerant inside motor casing 1062672 Refrigerant flows through outside of motor winding to provide the most efficient motor cooling 1062672 Sliding-fit stator easier for installation and removal

Part-load Effective Economizer Operation 1062672 Enhance cooling capacity as well as energy efficiency 1062672 Sustain optimum medium pressure by vapor injection through specially-designed slots in slide valve and compression casing 1062672 Effective under partial load and full load

Dual Capacity Control 1062672 Flanged-on solenoid coil easy for installation 1062672 3-step 4-step or continuous (33~100 25~100) capacity control system 1062672 Interchangeable by varying control logic without modification of solenoid valves

Durable Bearing Structure

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 9 Switch to Green Save the Environment Save The EARTH

1062672 High-quality bearings (radial and axial resistance) 1062672 Additional bearing for backward rotation 1062672 ________ _______________________ 1062672 Heavy-duty design 1062672 Longer bearing life compared to traditional 9-bearing design

High-performance Integral Oil Separator 1062672 Detachable demister for cleaning 1062672 Finer size of mesh 1062672 Low pressure drop and oil carry-over 1062672 Three-staged oil separation (RC2-1020~RC2-1530)

Complete Protection amp Accessories 1 Motor temperature sensor (optional) 106267210626721062672106267210626721062672 ldquoBuilt-inrdquo Pt100 or Pt1000 installed in motor winding 106267210626721062672106267210626721062672 Accurately registers motor temperature 106267210626721062672106267210626721062672 Controller can precisely initiate liquid injection to motor accordingly 2 Discharge Temperature Thermistor amp Motor Temperature Thermistor 106267210626721062672106267210626721062672 Totally integrated 106267210626721062672106267210626721062672 Effectively protect compressor in advance when any abnormal alarm occurs

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 10 Switch to Green Save the Environment Save The EARTH

3 Liquid Injection and Oil Cooler Function (Port amp Stop Pin) 106267210626721062672106267210626721062672 Both available on every Hanbell screw compressor 4 Oil Level Switch 106267210626721062672106267210626721062672 Ensure sufficient lubricant in compressor for better lubrication capacity control cooling and sealing 5 Heater (150W amp 300W) 106267210626721062672106267210626721062672 Increase lubricantrsquos flow-ability when compressor restarts after long-term stop 6 Connection for Pressure Differential Switch 106267210626721062672106267210626721062672 Easily detect clog in oil filter 106267210626721062672106267210626721062672 Assure effective capacity modulation and lubrication

Other Advantages 1062672 Low noise level and minimum vibration 1062672 Fewer quantity of parts in screw compressor than those in reciprocating compressor 1062672 Easy for maintenance and overhaul 1062672 Compact geometry easy for layout

Approval and Certification 1062672 Production by SOP conformed to major quality standards 1062672 Approved by ISO 9001-2000 UL CE(PED) Electronic Apparatus for Explosive Atmospheres (EX China) Lloydrsquos Register (vessel) Symbol of Excellence in Taiwan

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 11 Switch to Green Save the Environment Save The EARTH

Refrigerant Gas Selection

Hydrocarbon Refrigerant Gas HC refrigerant is designed to replace ozone-depleting global-warming refrigerants HC

Refrigerants are made of natural organic compounds mdash not a blend of pre-existing

chemically based synthetic refrigerants

In fact HC Refrigerant products can actually enhance the life and performance of air-

conditioning and refrigeration system Thanks to an anti-friction additive and their excellent

thermal and chemical stability After more than 12 years of extensive testing itrsquos clear that HC

Refrigerant Products provide more efficient performance than the man-made synthetic

refrigerants they replace

OR ENER-SAVE R600a is designed as direct replace and

retrofit refrigerant gas for Ozone Depleting refrigerant R12 (CFC) or Global Warming

refrigerant gas R134a (HFC)

OR ENER-SAVE R290 is designed as direct replace and

retrofit refrigerant gas for ozone depleting refrigerant gas R22 (HCFC) Global Warming

Refrigerant gas R410a R411a and R407C

A Natural Solution to a Global Dilemma

A growing awareness of the environmental issues facing our planet has motivated many world

leaders and governments to embrace hydrocarbon technology as a long-term solution to

environmental concerns The European Common has adopted a new Standard EN 378 which

provides guidelines for the use and installation of hydrocarbon refrigerants in over 14

European countries In the past five years alone more than 8 million refrigerators and freezers

were manufactured in Germany and Denmark utilizing hydrocarbon technology

Features of HC Refrigerant Benefits

bull Highly efficient

bull Non-ozone depleting

bull Non-corrosive

bull Non-toxic

bull Non-global warming

bull Molecule Lighter

bull Energy Saving

bull Environmental Friendly

bull Enhance Life and Performance of AC System

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 12 Switch to Green Save the Environment Save The EARTH

In the US ASHRAE has rewritten Standard 15 to provide a framework for greater use of

hydrocarbon refrigerants In the past ten years more than one million gallons of our HC

Refrigerant has been used to cool between 3 million and 5 million motor vehicles throughout

North America During that period there have been no reported accidents or injuries

attributed to the use of our products

Hydrocarbon refrigerant gas helps to stop ozone depleting (ODP= 0) amp reduce the global-

warming crisis (GWP lt 3) fully compliance with UN Montreal Protocol amp Kyoto Protocol

Refrigerants Hydrocarbons (HC)

Chlorofluorocarbons (CFC)

Hydro Chlorofluorocarbons

(HCFC)

Hydro Fluorocarbons

(HFC)

ODP 0 09 004 0

GWP (CO2 = 1 100 year Basic)

3 10600 1800 1600

Ozone Depleting Substances controlled by UN Montreal Protocol

Global Warming Substances gt150 controlled by Kyoto Protocol

Label on Hydrocarbon Chiller

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 13 Switch to Green Save the Environment Save The EARTH

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 14 Switch to Green Save the Environment Save The EARTH

Safety Guideline and Minimum Room Ventilation

General Safety Issues All hydrocarbon refrigerants are highly flammable but non-toxic This gives them an ldquoA3rdquo classification according to MS 26782017 Reference should be made to this Standard which details the requirements for the safe use of flammable refrigerants in commercial and industrial applications For more detailed information on these safety requirements refer to the Institute of Refrigeration Safety Code for A3 refrigerants There are many other safety requirements that should be considered in the design and construction of all refrigerating and air conditioning installations regardless of the flammability of the refrigerant used General safety standards and codes of practice referenced in this document should be consulted for this additional information Allowable Refrigerant Charge The limiting factor associated with the use of hydrocarbon refrigerants is the refrigerant charge size the occupancy category and the room size The charge size requirements according to MS 26782017 are detailed in Table below Table Charge size requirements for various location categories

Systems with charge sizes of 015kg or less can be installed in any size of room Systems with charge size of more than 015kg room size should be such that a sudden loss of refrigerant shall not raise the mean concentration in the room above the practical limit (approximately 0008kgm3) Room Ventilation and Refrigerant Detection ldquoRefrigeration machinery rooms should be vented to the outside air by means of natural or mechanical ventilation Free Air Movement (All) ldquoEnsure that free air movement can be achieved around all refrigerant containing parts of the system Openings for outside air should be positioned such that short circuiting does not occurrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 15 Switch to Green Save the Environment Save The EARTH

Mechanical Ventilation (All) Where the refrigerant charge of a single refrigerating circuit exceeds the mass in Equation below a machinery room containing HC refrigerants must employ mechanical ventilation capable of providing the minimum ventilation rate The minimum ventilation rate depends upon the type of electrical protection within the machinery room Where the installation is protected according to the mechanical ventilation rate should be equivalent to at least 10-room volume changes per hour

Eg Minimum ventilation fan flow rate for extraction Vmin

Vmin = 0004 x m LFL

Where

Vmin = minimum volume flow rate of extract fan m3 s

m = largest mass of refrigerant within any single circuit of any refrigerating system kg

(lb)

LFL = Lower Flammability Limit of refrigerant kgm3

Vmin = = 0004 x 22kg 0038kgm3 = 232m3s

Suggested Ventilation Fan should be more than 232 m3s flow rate for

Ener-Save Hydrocarbon Air Cooled Screw Chiller

ldquoIn all cases a refrigerant detector should be linked into the initiation of mechanical ventilation The location of the sampling point should be at low level (where heavier than air refrigerants are used) The ventilation must either be running continuously or use a refrigerant detector starting device set at 25 of the Lower Flammability Level (LFL) Lower ventilation rates can be initiated upon detection of lower refrigerant concentrationsrdquo ldquoThe inlet of the extract ventilation should be located at floor level and ducted to a safe location Discharge points for vented air or openings for fresh air shall be positioned so as to avoid discharged air being drawn back in the building such as ventilation system inlets opening windows and doors and sources of ignition The rejection of flammable materials shall not present a hazard externally such as entering a building or being in contact with sources of ignition The mechanical ventilation system should be designed to maintain the room at a lower pressure than surrounding areas so that there will be no escape of leaked refrigerants to other areas Fans for mechanical ventilation should use motors of non-sparking type and the fan blades and cowling should be designed so as to avoid sparking as a result of metal-to-metal contact Mechanical ventilation equipment should be installed with independent emergency control located outside of and near to the machinery roomrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 16 Switch to Green Save the Environment Save The EARTH

Authorized and Qualified Installer

Product Manufacturer and HC Trainer

ENER-SAVE SDN BHD

(661220-A) Tel +607-557 2669 Fax +607-558 2669

Todays Savings Tomorrows Sustainable Living Switch To Green Save The Environment Save The Earth We Specialise in Natural Green Refrigerant - Hydrocarbon

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 3 Switch to Green Save the Environment Save The EARTH

AWARD WINING PRODUCT

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 4 Switch to Green Save the Environment Save The EARTH

Superior Feature

ESWC Hydrocarbon series designed using Semi- Hermetic Screw compressor System designs

consist of several systems and every system operated by single compressor It further reduces

the refrigerant gas charge amount and increases the feasibility of easy maintenance and

servicing

Screw compressor ndashdeploy to serve the main compression drive to ESWC Hydrocarbon Chiller

low noise level high EER and high reliability and tested in many applications The electrical

termination point is sealed by fire rating insulation Series HC1 which is utilizing the HC-12a as

refrigerant further reduce extremely high-pressure hazard if compares to system using HC-

22a and HFC R410a

Chiller capacity control design is based on number of compressor and the control step from

thermostat controller Other safety gadget to protect the chiller system is flow rate sensor

pressure switch anti-freeze sensor and HC leak detector

HC leak detector can be linked to exhaust fan or other control circuit for refrigerant gas

evacuation and indication

Picture 4 ndash Isobutene Propane refrigerant gas sensor

Control Panel

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 5 Switch to Green Save the Environment Save The EARTH

bull Interactive screen

bull User friendly interface

bull Simple operation

bull Graph and digital numerical display for chilled water temperature

bull Display for Cut-OFF and Cut-IN temperature set-points

bull Temperature in Centigrade unit

bull System run time display in Days Hours and Minutes

bull Indicator lights to show the number of running compressors compressorrsquos status running status system error and compressorrsquos maintenance indicator

bull Active Alarm and History Alarm display to show the current and previous error

bull Parameters is set to factory default if the PLC is out of battery for 10 days

bull Easy set point setting for Cut-OFF Cut-IN temperatures and Cut-IN Timers

bull Password features to provide safety for the system parameters from being adjusted by unauthorized personal

bull PLC IO indicators to show the current PLC IO status

Remarks Ener-Save may change the controller to Carel Controller without prior notice

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 6 Switch to Green Save the Environment Save The EARTH

Technical Specification

Model (77RT to 172RT)

ESAC77C50SHCx

ESAC86C50CHCx

ESAC86C50SHCx

ESAC155C50SHCx

ESAC172C50SHCx

General

Capacity RT +-5 776 867 865 1552 1729

BTUh 931200 1040400 1038000 1862400 2074800

Rated Power kW 1020 1148 1091 2040 2182

Operating Power kW 878 980 933 1756 1867

No Of refrigerant circuits

1

2 1 2 2

Number of compressor

1 2 1 2 2

Capacity Steps of Compressor

100 ndash 75-50 ndash 0

100 ndash 75-50 ndash 0

100 ndash 75-50 ndash 0

100 ndash 75-50 ndash 25 ndash

0

100 ndash 75-50 ndash 25 ndash

0

Compressor

Type Semi-Hermetic

Screw

Semi-Hermetic

Screw

Semi-Hermetic

Screw

Semi-Hermetic

Screw

Semi-Hermetic

Screw

Compressor Model RC2-310B RC2-180B RC2-340B RC2-310B RC2-340B

Connection Star-Delta Star-Delta Star-Delta Star-Delta Star-Delta

Voltage Range 342 ndash 462Vac

Power Supply 380 415V 3ph 50Hz

Air Cooled Condenser V Coil 16FPI

No Coil 4 4 4 8 8

Face Area (m2) 1072 1208 1208 214 242

No of Fan Motor x Power (kW)

6 x 32 6 x 32 6 x 32 12 x 32 12 x 332

Air Flow (m3h) 136000 146200 146200 272000 292400

Cooling Shell amp Tube

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 7 Switch to Green Save the Environment Save The EARTH

Recommended Full Load Differential Temp Degree Celsius

45 ndash 6 45 ndash 6 45 ndash 6 45 ndash 6 45 ndash 6

Chilled Water LCWT Degree Celsius

70

Water Flow Rate usgpm

2061 2303 2298 4122 4592

Number of Cooling shell and tube

1 1 1 1 1

Water Connection (Flange) Size Inch

4rdquo 4rdquo 4rdquo 6rdquo 6rdquo

Refrigerant

HC-22aR290 Weight kg per system

17 13 x 2 18 22 x 2 18 x 2

Category C C C C C

Dimension

Height mm 1920 1920 1920 1920 1920

Width mm 2500 2500 2500 5000 5000

Length mm 1450 2290 2290 1450 2290

Weight kg 820 960 1120 1640 1820

Notes

1 1 RT = 3024kcalh = 3517kW 1m3 H2O 98kPa

2 Ambient Temperature of 40 Degree Celsius

3 Specification subject to change without prior notice

4 Compressor Oil SUNISO 4GS

5 Chiller Overview subject to change without prior notice due to positioning of chiller

compressor chiller barrel and condenser coil and fins

6 Designed Chilled Water Differential Temperature = 5 degree Celsius (12 oC7 oC)

Compressor Selection Highlights of RC2 Series Screw Compressor WWWHANBELLCOM

High-efficiency Motor 1062672 Available for part winding start or star delta start 1062672 Custom-made for specified voltage and frequency of power 1062672 Two options AampB motor for RC2-100~RC2-930 Four options A1 A2 amp B1 B2 motors for RC2-1020 ~1530

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 8 Switch to Green Save the Environment Save The EARTH

1062672 Optimal slot design for passage of refrigerant inside motor casing 1062672 Refrigerant flows through outside of motor winding to provide the most efficient motor cooling 1062672 Sliding-fit stator easier for installation and removal

Part-load Effective Economizer Operation 1062672 Enhance cooling capacity as well as energy efficiency 1062672 Sustain optimum medium pressure by vapor injection through specially-designed slots in slide valve and compression casing 1062672 Effective under partial load and full load

Dual Capacity Control 1062672 Flanged-on solenoid coil easy for installation 1062672 3-step 4-step or continuous (33~100 25~100) capacity control system 1062672 Interchangeable by varying control logic without modification of solenoid valves

Durable Bearing Structure

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 9 Switch to Green Save the Environment Save The EARTH

1062672 High-quality bearings (radial and axial resistance) 1062672 Additional bearing for backward rotation 1062672 ________ _______________________ 1062672 Heavy-duty design 1062672 Longer bearing life compared to traditional 9-bearing design

High-performance Integral Oil Separator 1062672 Detachable demister for cleaning 1062672 Finer size of mesh 1062672 Low pressure drop and oil carry-over 1062672 Three-staged oil separation (RC2-1020~RC2-1530)

Complete Protection amp Accessories 1 Motor temperature sensor (optional) 106267210626721062672106267210626721062672 ldquoBuilt-inrdquo Pt100 or Pt1000 installed in motor winding 106267210626721062672106267210626721062672 Accurately registers motor temperature 106267210626721062672106267210626721062672 Controller can precisely initiate liquid injection to motor accordingly 2 Discharge Temperature Thermistor amp Motor Temperature Thermistor 106267210626721062672106267210626721062672 Totally integrated 106267210626721062672106267210626721062672 Effectively protect compressor in advance when any abnormal alarm occurs

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 10 Switch to Green Save the Environment Save The EARTH

3 Liquid Injection and Oil Cooler Function (Port amp Stop Pin) 106267210626721062672106267210626721062672 Both available on every Hanbell screw compressor 4 Oil Level Switch 106267210626721062672106267210626721062672 Ensure sufficient lubricant in compressor for better lubrication capacity control cooling and sealing 5 Heater (150W amp 300W) 106267210626721062672106267210626721062672 Increase lubricantrsquos flow-ability when compressor restarts after long-term stop 6 Connection for Pressure Differential Switch 106267210626721062672106267210626721062672 Easily detect clog in oil filter 106267210626721062672106267210626721062672 Assure effective capacity modulation and lubrication

Other Advantages 1062672 Low noise level and minimum vibration 1062672 Fewer quantity of parts in screw compressor than those in reciprocating compressor 1062672 Easy for maintenance and overhaul 1062672 Compact geometry easy for layout

Approval and Certification 1062672 Production by SOP conformed to major quality standards 1062672 Approved by ISO 9001-2000 UL CE(PED) Electronic Apparatus for Explosive Atmospheres (EX China) Lloydrsquos Register (vessel) Symbol of Excellence in Taiwan

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 11 Switch to Green Save the Environment Save The EARTH

Refrigerant Gas Selection

Hydrocarbon Refrigerant Gas HC refrigerant is designed to replace ozone-depleting global-warming refrigerants HC

Refrigerants are made of natural organic compounds mdash not a blend of pre-existing

chemically based synthetic refrigerants

In fact HC Refrigerant products can actually enhance the life and performance of air-

conditioning and refrigeration system Thanks to an anti-friction additive and their excellent

thermal and chemical stability After more than 12 years of extensive testing itrsquos clear that HC

Refrigerant Products provide more efficient performance than the man-made synthetic

refrigerants they replace

OR ENER-SAVE R600a is designed as direct replace and

retrofit refrigerant gas for Ozone Depleting refrigerant R12 (CFC) or Global Warming

refrigerant gas R134a (HFC)

OR ENER-SAVE R290 is designed as direct replace and

retrofit refrigerant gas for ozone depleting refrigerant gas R22 (HCFC) Global Warming

Refrigerant gas R410a R411a and R407C

A Natural Solution to a Global Dilemma

A growing awareness of the environmental issues facing our planet has motivated many world

leaders and governments to embrace hydrocarbon technology as a long-term solution to

environmental concerns The European Common has adopted a new Standard EN 378 which

provides guidelines for the use and installation of hydrocarbon refrigerants in over 14

European countries In the past five years alone more than 8 million refrigerators and freezers

were manufactured in Germany and Denmark utilizing hydrocarbon technology

Features of HC Refrigerant Benefits

bull Highly efficient

bull Non-ozone depleting

bull Non-corrosive

bull Non-toxic

bull Non-global warming

bull Molecule Lighter

bull Energy Saving

bull Environmental Friendly

bull Enhance Life and Performance of AC System

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 12 Switch to Green Save the Environment Save The EARTH

In the US ASHRAE has rewritten Standard 15 to provide a framework for greater use of

hydrocarbon refrigerants In the past ten years more than one million gallons of our HC

Refrigerant has been used to cool between 3 million and 5 million motor vehicles throughout

North America During that period there have been no reported accidents or injuries

attributed to the use of our products

Hydrocarbon refrigerant gas helps to stop ozone depleting (ODP= 0) amp reduce the global-

warming crisis (GWP lt 3) fully compliance with UN Montreal Protocol amp Kyoto Protocol

Refrigerants Hydrocarbons (HC)

Chlorofluorocarbons (CFC)

Hydro Chlorofluorocarbons

(HCFC)

Hydro Fluorocarbons

(HFC)

ODP 0 09 004 0

GWP (CO2 = 1 100 year Basic)

3 10600 1800 1600

Ozone Depleting Substances controlled by UN Montreal Protocol

Global Warming Substances gt150 controlled by Kyoto Protocol

Label on Hydrocarbon Chiller

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 13 Switch to Green Save the Environment Save The EARTH

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 14 Switch to Green Save the Environment Save The EARTH

Safety Guideline and Minimum Room Ventilation

General Safety Issues All hydrocarbon refrigerants are highly flammable but non-toxic This gives them an ldquoA3rdquo classification according to MS 26782017 Reference should be made to this Standard which details the requirements for the safe use of flammable refrigerants in commercial and industrial applications For more detailed information on these safety requirements refer to the Institute of Refrigeration Safety Code for A3 refrigerants There are many other safety requirements that should be considered in the design and construction of all refrigerating and air conditioning installations regardless of the flammability of the refrigerant used General safety standards and codes of practice referenced in this document should be consulted for this additional information Allowable Refrigerant Charge The limiting factor associated with the use of hydrocarbon refrigerants is the refrigerant charge size the occupancy category and the room size The charge size requirements according to MS 26782017 are detailed in Table below Table Charge size requirements for various location categories

Systems with charge sizes of 015kg or less can be installed in any size of room Systems with charge size of more than 015kg room size should be such that a sudden loss of refrigerant shall not raise the mean concentration in the room above the practical limit (approximately 0008kgm3) Room Ventilation and Refrigerant Detection ldquoRefrigeration machinery rooms should be vented to the outside air by means of natural or mechanical ventilation Free Air Movement (All) ldquoEnsure that free air movement can be achieved around all refrigerant containing parts of the system Openings for outside air should be positioned such that short circuiting does not occurrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 15 Switch to Green Save the Environment Save The EARTH

Mechanical Ventilation (All) Where the refrigerant charge of a single refrigerating circuit exceeds the mass in Equation below a machinery room containing HC refrigerants must employ mechanical ventilation capable of providing the minimum ventilation rate The minimum ventilation rate depends upon the type of electrical protection within the machinery room Where the installation is protected according to the mechanical ventilation rate should be equivalent to at least 10-room volume changes per hour

Eg Minimum ventilation fan flow rate for extraction Vmin

Vmin = 0004 x m LFL

Where

Vmin = minimum volume flow rate of extract fan m3 s

m = largest mass of refrigerant within any single circuit of any refrigerating system kg

(lb)

LFL = Lower Flammability Limit of refrigerant kgm3

Vmin = = 0004 x 22kg 0038kgm3 = 232m3s

Suggested Ventilation Fan should be more than 232 m3s flow rate for

Ener-Save Hydrocarbon Air Cooled Screw Chiller

ldquoIn all cases a refrigerant detector should be linked into the initiation of mechanical ventilation The location of the sampling point should be at low level (where heavier than air refrigerants are used) The ventilation must either be running continuously or use a refrigerant detector starting device set at 25 of the Lower Flammability Level (LFL) Lower ventilation rates can be initiated upon detection of lower refrigerant concentrationsrdquo ldquoThe inlet of the extract ventilation should be located at floor level and ducted to a safe location Discharge points for vented air or openings for fresh air shall be positioned so as to avoid discharged air being drawn back in the building such as ventilation system inlets opening windows and doors and sources of ignition The rejection of flammable materials shall not present a hazard externally such as entering a building or being in contact with sources of ignition The mechanical ventilation system should be designed to maintain the room at a lower pressure than surrounding areas so that there will be no escape of leaked refrigerants to other areas Fans for mechanical ventilation should use motors of non-sparking type and the fan blades and cowling should be designed so as to avoid sparking as a result of metal-to-metal contact Mechanical ventilation equipment should be installed with independent emergency control located outside of and near to the machinery roomrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 16 Switch to Green Save the Environment Save The EARTH

Authorized and Qualified Installer

Product Manufacturer and HC Trainer

ENER-SAVE SDN BHD

(661220-A) Tel +607-557 2669 Fax +607-558 2669

Todays Savings Tomorrows Sustainable Living Switch To Green Save The Environment Save The Earth We Specialise in Natural Green Refrigerant - Hydrocarbon

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 4 Switch to Green Save the Environment Save The EARTH

Superior Feature

ESWC Hydrocarbon series designed using Semi- Hermetic Screw compressor System designs

consist of several systems and every system operated by single compressor It further reduces

the refrigerant gas charge amount and increases the feasibility of easy maintenance and

servicing

Screw compressor ndashdeploy to serve the main compression drive to ESWC Hydrocarbon Chiller

low noise level high EER and high reliability and tested in many applications The electrical

termination point is sealed by fire rating insulation Series HC1 which is utilizing the HC-12a as

refrigerant further reduce extremely high-pressure hazard if compares to system using HC-

22a and HFC R410a

Chiller capacity control design is based on number of compressor and the control step from

thermostat controller Other safety gadget to protect the chiller system is flow rate sensor

pressure switch anti-freeze sensor and HC leak detector

HC leak detector can be linked to exhaust fan or other control circuit for refrigerant gas

evacuation and indication

Picture 4 ndash Isobutene Propane refrigerant gas sensor

Control Panel

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 5 Switch to Green Save the Environment Save The EARTH

bull Interactive screen

bull User friendly interface

bull Simple operation

bull Graph and digital numerical display for chilled water temperature

bull Display for Cut-OFF and Cut-IN temperature set-points

bull Temperature in Centigrade unit

bull System run time display in Days Hours and Minutes

bull Indicator lights to show the number of running compressors compressorrsquos status running status system error and compressorrsquos maintenance indicator

bull Active Alarm and History Alarm display to show the current and previous error

bull Parameters is set to factory default if the PLC is out of battery for 10 days

bull Easy set point setting for Cut-OFF Cut-IN temperatures and Cut-IN Timers

bull Password features to provide safety for the system parameters from being adjusted by unauthorized personal

bull PLC IO indicators to show the current PLC IO status

Remarks Ener-Save may change the controller to Carel Controller without prior notice

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 6 Switch to Green Save the Environment Save The EARTH

Technical Specification

Model (77RT to 172RT)

ESAC77C50SHCx

ESAC86C50CHCx

ESAC86C50SHCx

ESAC155C50SHCx

ESAC172C50SHCx

General

Capacity RT +-5 776 867 865 1552 1729

BTUh 931200 1040400 1038000 1862400 2074800

Rated Power kW 1020 1148 1091 2040 2182

Operating Power kW 878 980 933 1756 1867

No Of refrigerant circuits

1

2 1 2 2

Number of compressor

1 2 1 2 2

Capacity Steps of Compressor

100 ndash 75-50 ndash 0

100 ndash 75-50 ndash 0

100 ndash 75-50 ndash 0

100 ndash 75-50 ndash 25 ndash

0

100 ndash 75-50 ndash 25 ndash

0

Compressor

Type Semi-Hermetic

Screw

Semi-Hermetic

Screw

Semi-Hermetic

Screw

Semi-Hermetic

Screw

Semi-Hermetic

Screw

Compressor Model RC2-310B RC2-180B RC2-340B RC2-310B RC2-340B

Connection Star-Delta Star-Delta Star-Delta Star-Delta Star-Delta

Voltage Range 342 ndash 462Vac

Power Supply 380 415V 3ph 50Hz

Air Cooled Condenser V Coil 16FPI

No Coil 4 4 4 8 8

Face Area (m2) 1072 1208 1208 214 242

No of Fan Motor x Power (kW)

6 x 32 6 x 32 6 x 32 12 x 32 12 x 332

Air Flow (m3h) 136000 146200 146200 272000 292400

Cooling Shell amp Tube

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 7 Switch to Green Save the Environment Save The EARTH

Recommended Full Load Differential Temp Degree Celsius

45 ndash 6 45 ndash 6 45 ndash 6 45 ndash 6 45 ndash 6

Chilled Water LCWT Degree Celsius

70

Water Flow Rate usgpm

2061 2303 2298 4122 4592

Number of Cooling shell and tube

1 1 1 1 1

Water Connection (Flange) Size Inch

4rdquo 4rdquo 4rdquo 6rdquo 6rdquo

Refrigerant

HC-22aR290 Weight kg per system

17 13 x 2 18 22 x 2 18 x 2

Category C C C C C

Dimension

Height mm 1920 1920 1920 1920 1920

Width mm 2500 2500 2500 5000 5000

Length mm 1450 2290 2290 1450 2290

Weight kg 820 960 1120 1640 1820

Notes

1 1 RT = 3024kcalh = 3517kW 1m3 H2O 98kPa

2 Ambient Temperature of 40 Degree Celsius

3 Specification subject to change without prior notice

4 Compressor Oil SUNISO 4GS

5 Chiller Overview subject to change without prior notice due to positioning of chiller

compressor chiller barrel and condenser coil and fins

6 Designed Chilled Water Differential Temperature = 5 degree Celsius (12 oC7 oC)

Compressor Selection Highlights of RC2 Series Screw Compressor WWWHANBELLCOM

High-efficiency Motor 1062672 Available for part winding start or star delta start 1062672 Custom-made for specified voltage and frequency of power 1062672 Two options AampB motor for RC2-100~RC2-930 Four options A1 A2 amp B1 B2 motors for RC2-1020 ~1530

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 8 Switch to Green Save the Environment Save The EARTH

1062672 Optimal slot design for passage of refrigerant inside motor casing 1062672 Refrigerant flows through outside of motor winding to provide the most efficient motor cooling 1062672 Sliding-fit stator easier for installation and removal

Part-load Effective Economizer Operation 1062672 Enhance cooling capacity as well as energy efficiency 1062672 Sustain optimum medium pressure by vapor injection through specially-designed slots in slide valve and compression casing 1062672 Effective under partial load and full load

Dual Capacity Control 1062672 Flanged-on solenoid coil easy for installation 1062672 3-step 4-step or continuous (33~100 25~100) capacity control system 1062672 Interchangeable by varying control logic without modification of solenoid valves

Durable Bearing Structure

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 9 Switch to Green Save the Environment Save The EARTH

1062672 High-quality bearings (radial and axial resistance) 1062672 Additional bearing for backward rotation 1062672 ________ _______________________ 1062672 Heavy-duty design 1062672 Longer bearing life compared to traditional 9-bearing design

High-performance Integral Oil Separator 1062672 Detachable demister for cleaning 1062672 Finer size of mesh 1062672 Low pressure drop and oil carry-over 1062672 Three-staged oil separation (RC2-1020~RC2-1530)

Complete Protection amp Accessories 1 Motor temperature sensor (optional) 106267210626721062672106267210626721062672 ldquoBuilt-inrdquo Pt100 or Pt1000 installed in motor winding 106267210626721062672106267210626721062672 Accurately registers motor temperature 106267210626721062672106267210626721062672 Controller can precisely initiate liquid injection to motor accordingly 2 Discharge Temperature Thermistor amp Motor Temperature Thermistor 106267210626721062672106267210626721062672 Totally integrated 106267210626721062672106267210626721062672 Effectively protect compressor in advance when any abnormal alarm occurs

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 10 Switch to Green Save the Environment Save The EARTH

3 Liquid Injection and Oil Cooler Function (Port amp Stop Pin) 106267210626721062672106267210626721062672 Both available on every Hanbell screw compressor 4 Oil Level Switch 106267210626721062672106267210626721062672 Ensure sufficient lubricant in compressor for better lubrication capacity control cooling and sealing 5 Heater (150W amp 300W) 106267210626721062672106267210626721062672 Increase lubricantrsquos flow-ability when compressor restarts after long-term stop 6 Connection for Pressure Differential Switch 106267210626721062672106267210626721062672 Easily detect clog in oil filter 106267210626721062672106267210626721062672 Assure effective capacity modulation and lubrication

Other Advantages 1062672 Low noise level and minimum vibration 1062672 Fewer quantity of parts in screw compressor than those in reciprocating compressor 1062672 Easy for maintenance and overhaul 1062672 Compact geometry easy for layout

Approval and Certification 1062672 Production by SOP conformed to major quality standards 1062672 Approved by ISO 9001-2000 UL CE(PED) Electronic Apparatus for Explosive Atmospheres (EX China) Lloydrsquos Register (vessel) Symbol of Excellence in Taiwan

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 11 Switch to Green Save the Environment Save The EARTH

Refrigerant Gas Selection

Hydrocarbon Refrigerant Gas HC refrigerant is designed to replace ozone-depleting global-warming refrigerants HC

Refrigerants are made of natural organic compounds mdash not a blend of pre-existing

chemically based synthetic refrigerants

In fact HC Refrigerant products can actually enhance the life and performance of air-

conditioning and refrigeration system Thanks to an anti-friction additive and their excellent

thermal and chemical stability After more than 12 years of extensive testing itrsquos clear that HC

Refrigerant Products provide more efficient performance than the man-made synthetic

refrigerants they replace

OR ENER-SAVE R600a is designed as direct replace and

retrofit refrigerant gas for Ozone Depleting refrigerant R12 (CFC) or Global Warming

refrigerant gas R134a (HFC)

OR ENER-SAVE R290 is designed as direct replace and

retrofit refrigerant gas for ozone depleting refrigerant gas R22 (HCFC) Global Warming

Refrigerant gas R410a R411a and R407C

A Natural Solution to a Global Dilemma

A growing awareness of the environmental issues facing our planet has motivated many world

leaders and governments to embrace hydrocarbon technology as a long-term solution to

environmental concerns The European Common has adopted a new Standard EN 378 which

provides guidelines for the use and installation of hydrocarbon refrigerants in over 14

European countries In the past five years alone more than 8 million refrigerators and freezers

were manufactured in Germany and Denmark utilizing hydrocarbon technology

Features of HC Refrigerant Benefits

bull Highly efficient

bull Non-ozone depleting

bull Non-corrosive

bull Non-toxic

bull Non-global warming

bull Molecule Lighter

bull Energy Saving

bull Environmental Friendly

bull Enhance Life and Performance of AC System

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 12 Switch to Green Save the Environment Save The EARTH

In the US ASHRAE has rewritten Standard 15 to provide a framework for greater use of

hydrocarbon refrigerants In the past ten years more than one million gallons of our HC

Refrigerant has been used to cool between 3 million and 5 million motor vehicles throughout

North America During that period there have been no reported accidents or injuries

attributed to the use of our products

Hydrocarbon refrigerant gas helps to stop ozone depleting (ODP= 0) amp reduce the global-

warming crisis (GWP lt 3) fully compliance with UN Montreal Protocol amp Kyoto Protocol

Refrigerants Hydrocarbons (HC)

Chlorofluorocarbons (CFC)

Hydro Chlorofluorocarbons

(HCFC)

Hydro Fluorocarbons

(HFC)

ODP 0 09 004 0

GWP (CO2 = 1 100 year Basic)

3 10600 1800 1600

Ozone Depleting Substances controlled by UN Montreal Protocol

Global Warming Substances gt150 controlled by Kyoto Protocol

Label on Hydrocarbon Chiller

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 13 Switch to Green Save the Environment Save The EARTH

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 14 Switch to Green Save the Environment Save The EARTH

Safety Guideline and Minimum Room Ventilation

General Safety Issues All hydrocarbon refrigerants are highly flammable but non-toxic This gives them an ldquoA3rdquo classification according to MS 26782017 Reference should be made to this Standard which details the requirements for the safe use of flammable refrigerants in commercial and industrial applications For more detailed information on these safety requirements refer to the Institute of Refrigeration Safety Code for A3 refrigerants There are many other safety requirements that should be considered in the design and construction of all refrigerating and air conditioning installations regardless of the flammability of the refrigerant used General safety standards and codes of practice referenced in this document should be consulted for this additional information Allowable Refrigerant Charge The limiting factor associated with the use of hydrocarbon refrigerants is the refrigerant charge size the occupancy category and the room size The charge size requirements according to MS 26782017 are detailed in Table below Table Charge size requirements for various location categories

Systems with charge sizes of 015kg or less can be installed in any size of room Systems with charge size of more than 015kg room size should be such that a sudden loss of refrigerant shall not raise the mean concentration in the room above the practical limit (approximately 0008kgm3) Room Ventilation and Refrigerant Detection ldquoRefrigeration machinery rooms should be vented to the outside air by means of natural or mechanical ventilation Free Air Movement (All) ldquoEnsure that free air movement can be achieved around all refrigerant containing parts of the system Openings for outside air should be positioned such that short circuiting does not occurrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 15 Switch to Green Save the Environment Save The EARTH

Mechanical Ventilation (All) Where the refrigerant charge of a single refrigerating circuit exceeds the mass in Equation below a machinery room containing HC refrigerants must employ mechanical ventilation capable of providing the minimum ventilation rate The minimum ventilation rate depends upon the type of electrical protection within the machinery room Where the installation is protected according to the mechanical ventilation rate should be equivalent to at least 10-room volume changes per hour

Eg Minimum ventilation fan flow rate for extraction Vmin

Vmin = 0004 x m LFL

Where

Vmin = minimum volume flow rate of extract fan m3 s

m = largest mass of refrigerant within any single circuit of any refrigerating system kg

(lb)

LFL = Lower Flammability Limit of refrigerant kgm3

Vmin = = 0004 x 22kg 0038kgm3 = 232m3s

Suggested Ventilation Fan should be more than 232 m3s flow rate for

Ener-Save Hydrocarbon Air Cooled Screw Chiller

ldquoIn all cases a refrigerant detector should be linked into the initiation of mechanical ventilation The location of the sampling point should be at low level (where heavier than air refrigerants are used) The ventilation must either be running continuously or use a refrigerant detector starting device set at 25 of the Lower Flammability Level (LFL) Lower ventilation rates can be initiated upon detection of lower refrigerant concentrationsrdquo ldquoThe inlet of the extract ventilation should be located at floor level and ducted to a safe location Discharge points for vented air or openings for fresh air shall be positioned so as to avoid discharged air being drawn back in the building such as ventilation system inlets opening windows and doors and sources of ignition The rejection of flammable materials shall not present a hazard externally such as entering a building or being in contact with sources of ignition The mechanical ventilation system should be designed to maintain the room at a lower pressure than surrounding areas so that there will be no escape of leaked refrigerants to other areas Fans for mechanical ventilation should use motors of non-sparking type and the fan blades and cowling should be designed so as to avoid sparking as a result of metal-to-metal contact Mechanical ventilation equipment should be installed with independent emergency control located outside of and near to the machinery roomrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 16 Switch to Green Save the Environment Save The EARTH

Authorized and Qualified Installer

Product Manufacturer and HC Trainer

ENER-SAVE SDN BHD

(661220-A) Tel +607-557 2669 Fax +607-558 2669

Todays Savings Tomorrows Sustainable Living Switch To Green Save The Environment Save The Earth We Specialise in Natural Green Refrigerant - Hydrocarbon

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 5 Switch to Green Save the Environment Save The EARTH

bull Interactive screen

bull User friendly interface

bull Simple operation

bull Graph and digital numerical display for chilled water temperature

bull Display for Cut-OFF and Cut-IN temperature set-points

bull Temperature in Centigrade unit

bull System run time display in Days Hours and Minutes

bull Indicator lights to show the number of running compressors compressorrsquos status running status system error and compressorrsquos maintenance indicator

bull Active Alarm and History Alarm display to show the current and previous error

bull Parameters is set to factory default if the PLC is out of battery for 10 days

bull Easy set point setting for Cut-OFF Cut-IN temperatures and Cut-IN Timers

bull Password features to provide safety for the system parameters from being adjusted by unauthorized personal

bull PLC IO indicators to show the current PLC IO status

Remarks Ener-Save may change the controller to Carel Controller without prior notice

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 6 Switch to Green Save the Environment Save The EARTH

Technical Specification

Model (77RT to 172RT)

ESAC77C50SHCx

ESAC86C50CHCx

ESAC86C50SHCx

ESAC155C50SHCx

ESAC172C50SHCx

General

Capacity RT +-5 776 867 865 1552 1729

BTUh 931200 1040400 1038000 1862400 2074800

Rated Power kW 1020 1148 1091 2040 2182

Operating Power kW 878 980 933 1756 1867

No Of refrigerant circuits

1

2 1 2 2

Number of compressor

1 2 1 2 2

Capacity Steps of Compressor

100 ndash 75-50 ndash 0

100 ndash 75-50 ndash 0

100 ndash 75-50 ndash 0

100 ndash 75-50 ndash 25 ndash

0

100 ndash 75-50 ndash 25 ndash

0

Compressor

Type Semi-Hermetic

Screw

Semi-Hermetic

Screw

Semi-Hermetic

Screw

Semi-Hermetic

Screw

Semi-Hermetic

Screw

Compressor Model RC2-310B RC2-180B RC2-340B RC2-310B RC2-340B

Connection Star-Delta Star-Delta Star-Delta Star-Delta Star-Delta

Voltage Range 342 ndash 462Vac

Power Supply 380 415V 3ph 50Hz

Air Cooled Condenser V Coil 16FPI

No Coil 4 4 4 8 8

Face Area (m2) 1072 1208 1208 214 242

No of Fan Motor x Power (kW)

6 x 32 6 x 32 6 x 32 12 x 32 12 x 332

Air Flow (m3h) 136000 146200 146200 272000 292400

Cooling Shell amp Tube

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 7 Switch to Green Save the Environment Save The EARTH

Recommended Full Load Differential Temp Degree Celsius

45 ndash 6 45 ndash 6 45 ndash 6 45 ndash 6 45 ndash 6

Chilled Water LCWT Degree Celsius

70

Water Flow Rate usgpm

2061 2303 2298 4122 4592

Number of Cooling shell and tube

1 1 1 1 1

Water Connection (Flange) Size Inch

4rdquo 4rdquo 4rdquo 6rdquo 6rdquo

Refrigerant

HC-22aR290 Weight kg per system

17 13 x 2 18 22 x 2 18 x 2

Category C C C C C

Dimension

Height mm 1920 1920 1920 1920 1920

Width mm 2500 2500 2500 5000 5000

Length mm 1450 2290 2290 1450 2290

Weight kg 820 960 1120 1640 1820

Notes

1 1 RT = 3024kcalh = 3517kW 1m3 H2O 98kPa

2 Ambient Temperature of 40 Degree Celsius

3 Specification subject to change without prior notice

4 Compressor Oil SUNISO 4GS

5 Chiller Overview subject to change without prior notice due to positioning of chiller

compressor chiller barrel and condenser coil and fins

6 Designed Chilled Water Differential Temperature = 5 degree Celsius (12 oC7 oC)

Compressor Selection Highlights of RC2 Series Screw Compressor WWWHANBELLCOM

High-efficiency Motor 1062672 Available for part winding start or star delta start 1062672 Custom-made for specified voltage and frequency of power 1062672 Two options AampB motor for RC2-100~RC2-930 Four options A1 A2 amp B1 B2 motors for RC2-1020 ~1530

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 8 Switch to Green Save the Environment Save The EARTH

1062672 Optimal slot design for passage of refrigerant inside motor casing 1062672 Refrigerant flows through outside of motor winding to provide the most efficient motor cooling 1062672 Sliding-fit stator easier for installation and removal

Part-load Effective Economizer Operation 1062672 Enhance cooling capacity as well as energy efficiency 1062672 Sustain optimum medium pressure by vapor injection through specially-designed slots in slide valve and compression casing 1062672 Effective under partial load and full load

Dual Capacity Control 1062672 Flanged-on solenoid coil easy for installation 1062672 3-step 4-step or continuous (33~100 25~100) capacity control system 1062672 Interchangeable by varying control logic without modification of solenoid valves

Durable Bearing Structure

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 9 Switch to Green Save the Environment Save The EARTH

1062672 High-quality bearings (radial and axial resistance) 1062672 Additional bearing for backward rotation 1062672 ________ _______________________ 1062672 Heavy-duty design 1062672 Longer bearing life compared to traditional 9-bearing design

High-performance Integral Oil Separator 1062672 Detachable demister for cleaning 1062672 Finer size of mesh 1062672 Low pressure drop and oil carry-over 1062672 Three-staged oil separation (RC2-1020~RC2-1530)

Complete Protection amp Accessories 1 Motor temperature sensor (optional) 106267210626721062672106267210626721062672 ldquoBuilt-inrdquo Pt100 or Pt1000 installed in motor winding 106267210626721062672106267210626721062672 Accurately registers motor temperature 106267210626721062672106267210626721062672 Controller can precisely initiate liquid injection to motor accordingly 2 Discharge Temperature Thermistor amp Motor Temperature Thermistor 106267210626721062672106267210626721062672 Totally integrated 106267210626721062672106267210626721062672 Effectively protect compressor in advance when any abnormal alarm occurs

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 10 Switch to Green Save the Environment Save The EARTH

3 Liquid Injection and Oil Cooler Function (Port amp Stop Pin) 106267210626721062672106267210626721062672 Both available on every Hanbell screw compressor 4 Oil Level Switch 106267210626721062672106267210626721062672 Ensure sufficient lubricant in compressor for better lubrication capacity control cooling and sealing 5 Heater (150W amp 300W) 106267210626721062672106267210626721062672 Increase lubricantrsquos flow-ability when compressor restarts after long-term stop 6 Connection for Pressure Differential Switch 106267210626721062672106267210626721062672 Easily detect clog in oil filter 106267210626721062672106267210626721062672 Assure effective capacity modulation and lubrication

Other Advantages 1062672 Low noise level and minimum vibration 1062672 Fewer quantity of parts in screw compressor than those in reciprocating compressor 1062672 Easy for maintenance and overhaul 1062672 Compact geometry easy for layout

Approval and Certification 1062672 Production by SOP conformed to major quality standards 1062672 Approved by ISO 9001-2000 UL CE(PED) Electronic Apparatus for Explosive Atmospheres (EX China) Lloydrsquos Register (vessel) Symbol of Excellence in Taiwan

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 11 Switch to Green Save the Environment Save The EARTH

Refrigerant Gas Selection

Hydrocarbon Refrigerant Gas HC refrigerant is designed to replace ozone-depleting global-warming refrigerants HC

Refrigerants are made of natural organic compounds mdash not a blend of pre-existing

chemically based synthetic refrigerants

In fact HC Refrigerant products can actually enhance the life and performance of air-

conditioning and refrigeration system Thanks to an anti-friction additive and their excellent

thermal and chemical stability After more than 12 years of extensive testing itrsquos clear that HC

Refrigerant Products provide more efficient performance than the man-made synthetic

refrigerants they replace

OR ENER-SAVE R600a is designed as direct replace and

retrofit refrigerant gas for Ozone Depleting refrigerant R12 (CFC) or Global Warming

refrigerant gas R134a (HFC)

OR ENER-SAVE R290 is designed as direct replace and

retrofit refrigerant gas for ozone depleting refrigerant gas R22 (HCFC) Global Warming

Refrigerant gas R410a R411a and R407C

A Natural Solution to a Global Dilemma

A growing awareness of the environmental issues facing our planet has motivated many world

leaders and governments to embrace hydrocarbon technology as a long-term solution to

environmental concerns The European Common has adopted a new Standard EN 378 which

provides guidelines for the use and installation of hydrocarbon refrigerants in over 14

European countries In the past five years alone more than 8 million refrigerators and freezers

were manufactured in Germany and Denmark utilizing hydrocarbon technology

Features of HC Refrigerant Benefits

bull Highly efficient

bull Non-ozone depleting

bull Non-corrosive

bull Non-toxic

bull Non-global warming

bull Molecule Lighter

bull Energy Saving

bull Environmental Friendly

bull Enhance Life and Performance of AC System

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 12 Switch to Green Save the Environment Save The EARTH

In the US ASHRAE has rewritten Standard 15 to provide a framework for greater use of

hydrocarbon refrigerants In the past ten years more than one million gallons of our HC

Refrigerant has been used to cool between 3 million and 5 million motor vehicles throughout

North America During that period there have been no reported accidents or injuries

attributed to the use of our products

Hydrocarbon refrigerant gas helps to stop ozone depleting (ODP= 0) amp reduce the global-

warming crisis (GWP lt 3) fully compliance with UN Montreal Protocol amp Kyoto Protocol

Refrigerants Hydrocarbons (HC)

Chlorofluorocarbons (CFC)

Hydro Chlorofluorocarbons

(HCFC)

Hydro Fluorocarbons

(HFC)

ODP 0 09 004 0

GWP (CO2 = 1 100 year Basic)

3 10600 1800 1600

Ozone Depleting Substances controlled by UN Montreal Protocol

Global Warming Substances gt150 controlled by Kyoto Protocol

Label on Hydrocarbon Chiller

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 13 Switch to Green Save the Environment Save The EARTH

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 14 Switch to Green Save the Environment Save The EARTH

Safety Guideline and Minimum Room Ventilation

General Safety Issues All hydrocarbon refrigerants are highly flammable but non-toxic This gives them an ldquoA3rdquo classification according to MS 26782017 Reference should be made to this Standard which details the requirements for the safe use of flammable refrigerants in commercial and industrial applications For more detailed information on these safety requirements refer to the Institute of Refrigeration Safety Code for A3 refrigerants There are many other safety requirements that should be considered in the design and construction of all refrigerating and air conditioning installations regardless of the flammability of the refrigerant used General safety standards and codes of practice referenced in this document should be consulted for this additional information Allowable Refrigerant Charge The limiting factor associated with the use of hydrocarbon refrigerants is the refrigerant charge size the occupancy category and the room size The charge size requirements according to MS 26782017 are detailed in Table below Table Charge size requirements for various location categories

Systems with charge sizes of 015kg or less can be installed in any size of room Systems with charge size of more than 015kg room size should be such that a sudden loss of refrigerant shall not raise the mean concentration in the room above the practical limit (approximately 0008kgm3) Room Ventilation and Refrigerant Detection ldquoRefrigeration machinery rooms should be vented to the outside air by means of natural or mechanical ventilation Free Air Movement (All) ldquoEnsure that free air movement can be achieved around all refrigerant containing parts of the system Openings for outside air should be positioned such that short circuiting does not occurrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 15 Switch to Green Save the Environment Save The EARTH

Mechanical Ventilation (All) Where the refrigerant charge of a single refrigerating circuit exceeds the mass in Equation below a machinery room containing HC refrigerants must employ mechanical ventilation capable of providing the minimum ventilation rate The minimum ventilation rate depends upon the type of electrical protection within the machinery room Where the installation is protected according to the mechanical ventilation rate should be equivalent to at least 10-room volume changes per hour

Eg Minimum ventilation fan flow rate for extraction Vmin

Vmin = 0004 x m LFL

Where

Vmin = minimum volume flow rate of extract fan m3 s

m = largest mass of refrigerant within any single circuit of any refrigerating system kg

(lb)

LFL = Lower Flammability Limit of refrigerant kgm3

Vmin = = 0004 x 22kg 0038kgm3 = 232m3s

Suggested Ventilation Fan should be more than 232 m3s flow rate for

Ener-Save Hydrocarbon Air Cooled Screw Chiller

ldquoIn all cases a refrigerant detector should be linked into the initiation of mechanical ventilation The location of the sampling point should be at low level (where heavier than air refrigerants are used) The ventilation must either be running continuously or use a refrigerant detector starting device set at 25 of the Lower Flammability Level (LFL) Lower ventilation rates can be initiated upon detection of lower refrigerant concentrationsrdquo ldquoThe inlet of the extract ventilation should be located at floor level and ducted to a safe location Discharge points for vented air or openings for fresh air shall be positioned so as to avoid discharged air being drawn back in the building such as ventilation system inlets opening windows and doors and sources of ignition The rejection of flammable materials shall not present a hazard externally such as entering a building or being in contact with sources of ignition The mechanical ventilation system should be designed to maintain the room at a lower pressure than surrounding areas so that there will be no escape of leaked refrigerants to other areas Fans for mechanical ventilation should use motors of non-sparking type and the fan blades and cowling should be designed so as to avoid sparking as a result of metal-to-metal contact Mechanical ventilation equipment should be installed with independent emergency control located outside of and near to the machinery roomrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 16 Switch to Green Save the Environment Save The EARTH

Authorized and Qualified Installer

Product Manufacturer and HC Trainer

ENER-SAVE SDN BHD

(661220-A) Tel +607-557 2669 Fax +607-558 2669

Todays Savings Tomorrows Sustainable Living Switch To Green Save The Environment Save The Earth We Specialise in Natural Green Refrigerant - Hydrocarbon

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 6 Switch to Green Save the Environment Save The EARTH

Technical Specification

Model (77RT to 172RT)

ESAC77C50SHCx

ESAC86C50CHCx

ESAC86C50SHCx

ESAC155C50SHCx

ESAC172C50SHCx

General

Capacity RT +-5 776 867 865 1552 1729

BTUh 931200 1040400 1038000 1862400 2074800

Rated Power kW 1020 1148 1091 2040 2182

Operating Power kW 878 980 933 1756 1867

No Of refrigerant circuits

1

2 1 2 2

Number of compressor

1 2 1 2 2

Capacity Steps of Compressor

100 ndash 75-50 ndash 0

100 ndash 75-50 ndash 0

100 ndash 75-50 ndash 0

100 ndash 75-50 ndash 25 ndash

0

100 ndash 75-50 ndash 25 ndash

0

Compressor

Type Semi-Hermetic

Screw

Semi-Hermetic

Screw

Semi-Hermetic

Screw

Semi-Hermetic

Screw

Semi-Hermetic

Screw

Compressor Model RC2-310B RC2-180B RC2-340B RC2-310B RC2-340B

Connection Star-Delta Star-Delta Star-Delta Star-Delta Star-Delta

Voltage Range 342 ndash 462Vac

Power Supply 380 415V 3ph 50Hz

Air Cooled Condenser V Coil 16FPI

No Coil 4 4 4 8 8

Face Area (m2) 1072 1208 1208 214 242

No of Fan Motor x Power (kW)

6 x 32 6 x 32 6 x 32 12 x 32 12 x 332

Air Flow (m3h) 136000 146200 146200 272000 292400

Cooling Shell amp Tube

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 7 Switch to Green Save the Environment Save The EARTH

Recommended Full Load Differential Temp Degree Celsius

45 ndash 6 45 ndash 6 45 ndash 6 45 ndash 6 45 ndash 6

Chilled Water LCWT Degree Celsius

70

Water Flow Rate usgpm

2061 2303 2298 4122 4592

Number of Cooling shell and tube

1 1 1 1 1

Water Connection (Flange) Size Inch

4rdquo 4rdquo 4rdquo 6rdquo 6rdquo

Refrigerant

HC-22aR290 Weight kg per system

17 13 x 2 18 22 x 2 18 x 2

Category C C C C C

Dimension

Height mm 1920 1920 1920 1920 1920

Width mm 2500 2500 2500 5000 5000

Length mm 1450 2290 2290 1450 2290

Weight kg 820 960 1120 1640 1820

Notes

1 1 RT = 3024kcalh = 3517kW 1m3 H2O 98kPa

2 Ambient Temperature of 40 Degree Celsius

3 Specification subject to change without prior notice

4 Compressor Oil SUNISO 4GS

5 Chiller Overview subject to change without prior notice due to positioning of chiller

compressor chiller barrel and condenser coil and fins

6 Designed Chilled Water Differential Temperature = 5 degree Celsius (12 oC7 oC)

Compressor Selection Highlights of RC2 Series Screw Compressor WWWHANBELLCOM

High-efficiency Motor 1062672 Available for part winding start or star delta start 1062672 Custom-made for specified voltage and frequency of power 1062672 Two options AampB motor for RC2-100~RC2-930 Four options A1 A2 amp B1 B2 motors for RC2-1020 ~1530

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 8 Switch to Green Save the Environment Save The EARTH

1062672 Optimal slot design for passage of refrigerant inside motor casing 1062672 Refrigerant flows through outside of motor winding to provide the most efficient motor cooling 1062672 Sliding-fit stator easier for installation and removal

Part-load Effective Economizer Operation 1062672 Enhance cooling capacity as well as energy efficiency 1062672 Sustain optimum medium pressure by vapor injection through specially-designed slots in slide valve and compression casing 1062672 Effective under partial load and full load

Dual Capacity Control 1062672 Flanged-on solenoid coil easy for installation 1062672 3-step 4-step or continuous (33~100 25~100) capacity control system 1062672 Interchangeable by varying control logic without modification of solenoid valves

Durable Bearing Structure

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 9 Switch to Green Save the Environment Save The EARTH

1062672 High-quality bearings (radial and axial resistance) 1062672 Additional bearing for backward rotation 1062672 ________ _______________________ 1062672 Heavy-duty design 1062672 Longer bearing life compared to traditional 9-bearing design

High-performance Integral Oil Separator 1062672 Detachable demister for cleaning 1062672 Finer size of mesh 1062672 Low pressure drop and oil carry-over 1062672 Three-staged oil separation (RC2-1020~RC2-1530)

Complete Protection amp Accessories 1 Motor temperature sensor (optional) 106267210626721062672106267210626721062672 ldquoBuilt-inrdquo Pt100 or Pt1000 installed in motor winding 106267210626721062672106267210626721062672 Accurately registers motor temperature 106267210626721062672106267210626721062672 Controller can precisely initiate liquid injection to motor accordingly 2 Discharge Temperature Thermistor amp Motor Temperature Thermistor 106267210626721062672106267210626721062672 Totally integrated 106267210626721062672106267210626721062672 Effectively protect compressor in advance when any abnormal alarm occurs

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 10 Switch to Green Save the Environment Save The EARTH

3 Liquid Injection and Oil Cooler Function (Port amp Stop Pin) 106267210626721062672106267210626721062672 Both available on every Hanbell screw compressor 4 Oil Level Switch 106267210626721062672106267210626721062672 Ensure sufficient lubricant in compressor for better lubrication capacity control cooling and sealing 5 Heater (150W amp 300W) 106267210626721062672106267210626721062672 Increase lubricantrsquos flow-ability when compressor restarts after long-term stop 6 Connection for Pressure Differential Switch 106267210626721062672106267210626721062672 Easily detect clog in oil filter 106267210626721062672106267210626721062672 Assure effective capacity modulation and lubrication

Other Advantages 1062672 Low noise level and minimum vibration 1062672 Fewer quantity of parts in screw compressor than those in reciprocating compressor 1062672 Easy for maintenance and overhaul 1062672 Compact geometry easy for layout

Approval and Certification 1062672 Production by SOP conformed to major quality standards 1062672 Approved by ISO 9001-2000 UL CE(PED) Electronic Apparatus for Explosive Atmospheres (EX China) Lloydrsquos Register (vessel) Symbol of Excellence in Taiwan

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 11 Switch to Green Save the Environment Save The EARTH

Refrigerant Gas Selection

Hydrocarbon Refrigerant Gas HC refrigerant is designed to replace ozone-depleting global-warming refrigerants HC

Refrigerants are made of natural organic compounds mdash not a blend of pre-existing

chemically based synthetic refrigerants

In fact HC Refrigerant products can actually enhance the life and performance of air-

conditioning and refrigeration system Thanks to an anti-friction additive and their excellent

thermal and chemical stability After more than 12 years of extensive testing itrsquos clear that HC

Refrigerant Products provide more efficient performance than the man-made synthetic

refrigerants they replace

OR ENER-SAVE R600a is designed as direct replace and

retrofit refrigerant gas for Ozone Depleting refrigerant R12 (CFC) or Global Warming

refrigerant gas R134a (HFC)

OR ENER-SAVE R290 is designed as direct replace and

retrofit refrigerant gas for ozone depleting refrigerant gas R22 (HCFC) Global Warming

Refrigerant gas R410a R411a and R407C

A Natural Solution to a Global Dilemma

A growing awareness of the environmental issues facing our planet has motivated many world

leaders and governments to embrace hydrocarbon technology as a long-term solution to

environmental concerns The European Common has adopted a new Standard EN 378 which

provides guidelines for the use and installation of hydrocarbon refrigerants in over 14

European countries In the past five years alone more than 8 million refrigerators and freezers

were manufactured in Germany and Denmark utilizing hydrocarbon technology

Features of HC Refrigerant Benefits

bull Highly efficient

bull Non-ozone depleting

bull Non-corrosive

bull Non-toxic

bull Non-global warming

bull Molecule Lighter

bull Energy Saving

bull Environmental Friendly

bull Enhance Life and Performance of AC System

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 12 Switch to Green Save the Environment Save The EARTH

In the US ASHRAE has rewritten Standard 15 to provide a framework for greater use of

hydrocarbon refrigerants In the past ten years more than one million gallons of our HC

Refrigerant has been used to cool between 3 million and 5 million motor vehicles throughout

North America During that period there have been no reported accidents or injuries

attributed to the use of our products

Hydrocarbon refrigerant gas helps to stop ozone depleting (ODP= 0) amp reduce the global-

warming crisis (GWP lt 3) fully compliance with UN Montreal Protocol amp Kyoto Protocol

Refrigerants Hydrocarbons (HC)

Chlorofluorocarbons (CFC)

Hydro Chlorofluorocarbons

(HCFC)

Hydro Fluorocarbons

(HFC)

ODP 0 09 004 0

GWP (CO2 = 1 100 year Basic)

3 10600 1800 1600

Ozone Depleting Substances controlled by UN Montreal Protocol

Global Warming Substances gt150 controlled by Kyoto Protocol

Label on Hydrocarbon Chiller

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 13 Switch to Green Save the Environment Save The EARTH

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 14 Switch to Green Save the Environment Save The EARTH

Safety Guideline and Minimum Room Ventilation

General Safety Issues All hydrocarbon refrigerants are highly flammable but non-toxic This gives them an ldquoA3rdquo classification according to MS 26782017 Reference should be made to this Standard which details the requirements for the safe use of flammable refrigerants in commercial and industrial applications For more detailed information on these safety requirements refer to the Institute of Refrigeration Safety Code for A3 refrigerants There are many other safety requirements that should be considered in the design and construction of all refrigerating and air conditioning installations regardless of the flammability of the refrigerant used General safety standards and codes of practice referenced in this document should be consulted for this additional information Allowable Refrigerant Charge The limiting factor associated with the use of hydrocarbon refrigerants is the refrigerant charge size the occupancy category and the room size The charge size requirements according to MS 26782017 are detailed in Table below Table Charge size requirements for various location categories

Systems with charge sizes of 015kg or less can be installed in any size of room Systems with charge size of more than 015kg room size should be such that a sudden loss of refrigerant shall not raise the mean concentration in the room above the practical limit (approximately 0008kgm3) Room Ventilation and Refrigerant Detection ldquoRefrigeration machinery rooms should be vented to the outside air by means of natural or mechanical ventilation Free Air Movement (All) ldquoEnsure that free air movement can be achieved around all refrigerant containing parts of the system Openings for outside air should be positioned such that short circuiting does not occurrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 15 Switch to Green Save the Environment Save The EARTH

Mechanical Ventilation (All) Where the refrigerant charge of a single refrigerating circuit exceeds the mass in Equation below a machinery room containing HC refrigerants must employ mechanical ventilation capable of providing the minimum ventilation rate The minimum ventilation rate depends upon the type of electrical protection within the machinery room Where the installation is protected according to the mechanical ventilation rate should be equivalent to at least 10-room volume changes per hour

Eg Minimum ventilation fan flow rate for extraction Vmin

Vmin = 0004 x m LFL

Where

Vmin = minimum volume flow rate of extract fan m3 s

m = largest mass of refrigerant within any single circuit of any refrigerating system kg

(lb)

LFL = Lower Flammability Limit of refrigerant kgm3

Vmin = = 0004 x 22kg 0038kgm3 = 232m3s

Suggested Ventilation Fan should be more than 232 m3s flow rate for

Ener-Save Hydrocarbon Air Cooled Screw Chiller

ldquoIn all cases a refrigerant detector should be linked into the initiation of mechanical ventilation The location of the sampling point should be at low level (where heavier than air refrigerants are used) The ventilation must either be running continuously or use a refrigerant detector starting device set at 25 of the Lower Flammability Level (LFL) Lower ventilation rates can be initiated upon detection of lower refrigerant concentrationsrdquo ldquoThe inlet of the extract ventilation should be located at floor level and ducted to a safe location Discharge points for vented air or openings for fresh air shall be positioned so as to avoid discharged air being drawn back in the building such as ventilation system inlets opening windows and doors and sources of ignition The rejection of flammable materials shall not present a hazard externally such as entering a building or being in contact with sources of ignition The mechanical ventilation system should be designed to maintain the room at a lower pressure than surrounding areas so that there will be no escape of leaked refrigerants to other areas Fans for mechanical ventilation should use motors of non-sparking type and the fan blades and cowling should be designed so as to avoid sparking as a result of metal-to-metal contact Mechanical ventilation equipment should be installed with independent emergency control located outside of and near to the machinery roomrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 16 Switch to Green Save the Environment Save The EARTH

Authorized and Qualified Installer

Product Manufacturer and HC Trainer

ENER-SAVE SDN BHD

(661220-A) Tel +607-557 2669 Fax +607-558 2669

Todays Savings Tomorrows Sustainable Living Switch To Green Save The Environment Save The Earth We Specialise in Natural Green Refrigerant - Hydrocarbon

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 7 Switch to Green Save the Environment Save The EARTH

Recommended Full Load Differential Temp Degree Celsius

45 ndash 6 45 ndash 6 45 ndash 6 45 ndash 6 45 ndash 6

Chilled Water LCWT Degree Celsius

70

Water Flow Rate usgpm

2061 2303 2298 4122 4592

Number of Cooling shell and tube

1 1 1 1 1

Water Connection (Flange) Size Inch

4rdquo 4rdquo 4rdquo 6rdquo 6rdquo

Refrigerant

HC-22aR290 Weight kg per system

17 13 x 2 18 22 x 2 18 x 2

Category C C C C C

Dimension

Height mm 1920 1920 1920 1920 1920

Width mm 2500 2500 2500 5000 5000

Length mm 1450 2290 2290 1450 2290

Weight kg 820 960 1120 1640 1820

Notes

1 1 RT = 3024kcalh = 3517kW 1m3 H2O 98kPa

2 Ambient Temperature of 40 Degree Celsius

3 Specification subject to change without prior notice

4 Compressor Oil SUNISO 4GS

5 Chiller Overview subject to change without prior notice due to positioning of chiller

compressor chiller barrel and condenser coil and fins

6 Designed Chilled Water Differential Temperature = 5 degree Celsius (12 oC7 oC)

Compressor Selection Highlights of RC2 Series Screw Compressor WWWHANBELLCOM

High-efficiency Motor 1062672 Available for part winding start or star delta start 1062672 Custom-made for specified voltage and frequency of power 1062672 Two options AampB motor for RC2-100~RC2-930 Four options A1 A2 amp B1 B2 motors for RC2-1020 ~1530

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 8 Switch to Green Save the Environment Save The EARTH

1062672 Optimal slot design for passage of refrigerant inside motor casing 1062672 Refrigerant flows through outside of motor winding to provide the most efficient motor cooling 1062672 Sliding-fit stator easier for installation and removal

Part-load Effective Economizer Operation 1062672 Enhance cooling capacity as well as energy efficiency 1062672 Sustain optimum medium pressure by vapor injection through specially-designed slots in slide valve and compression casing 1062672 Effective under partial load and full load

Dual Capacity Control 1062672 Flanged-on solenoid coil easy for installation 1062672 3-step 4-step or continuous (33~100 25~100) capacity control system 1062672 Interchangeable by varying control logic without modification of solenoid valves

Durable Bearing Structure

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 9 Switch to Green Save the Environment Save The EARTH

1062672 High-quality bearings (radial and axial resistance) 1062672 Additional bearing for backward rotation 1062672 ________ _______________________ 1062672 Heavy-duty design 1062672 Longer bearing life compared to traditional 9-bearing design

High-performance Integral Oil Separator 1062672 Detachable demister for cleaning 1062672 Finer size of mesh 1062672 Low pressure drop and oil carry-over 1062672 Three-staged oil separation (RC2-1020~RC2-1530)

Complete Protection amp Accessories 1 Motor temperature sensor (optional) 106267210626721062672106267210626721062672 ldquoBuilt-inrdquo Pt100 or Pt1000 installed in motor winding 106267210626721062672106267210626721062672 Accurately registers motor temperature 106267210626721062672106267210626721062672 Controller can precisely initiate liquid injection to motor accordingly 2 Discharge Temperature Thermistor amp Motor Temperature Thermistor 106267210626721062672106267210626721062672 Totally integrated 106267210626721062672106267210626721062672 Effectively protect compressor in advance when any abnormal alarm occurs

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 10 Switch to Green Save the Environment Save The EARTH

3 Liquid Injection and Oil Cooler Function (Port amp Stop Pin) 106267210626721062672106267210626721062672 Both available on every Hanbell screw compressor 4 Oil Level Switch 106267210626721062672106267210626721062672 Ensure sufficient lubricant in compressor for better lubrication capacity control cooling and sealing 5 Heater (150W amp 300W) 106267210626721062672106267210626721062672 Increase lubricantrsquos flow-ability when compressor restarts after long-term stop 6 Connection for Pressure Differential Switch 106267210626721062672106267210626721062672 Easily detect clog in oil filter 106267210626721062672106267210626721062672 Assure effective capacity modulation and lubrication

Other Advantages 1062672 Low noise level and minimum vibration 1062672 Fewer quantity of parts in screw compressor than those in reciprocating compressor 1062672 Easy for maintenance and overhaul 1062672 Compact geometry easy for layout

Approval and Certification 1062672 Production by SOP conformed to major quality standards 1062672 Approved by ISO 9001-2000 UL CE(PED) Electronic Apparatus for Explosive Atmospheres (EX China) Lloydrsquos Register (vessel) Symbol of Excellence in Taiwan

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 11 Switch to Green Save the Environment Save The EARTH

Refrigerant Gas Selection

Hydrocarbon Refrigerant Gas HC refrigerant is designed to replace ozone-depleting global-warming refrigerants HC

Refrigerants are made of natural organic compounds mdash not a blend of pre-existing

chemically based synthetic refrigerants

In fact HC Refrigerant products can actually enhance the life and performance of air-

conditioning and refrigeration system Thanks to an anti-friction additive and their excellent

thermal and chemical stability After more than 12 years of extensive testing itrsquos clear that HC

Refrigerant Products provide more efficient performance than the man-made synthetic

refrigerants they replace

OR ENER-SAVE R600a is designed as direct replace and

retrofit refrigerant gas for Ozone Depleting refrigerant R12 (CFC) or Global Warming

refrigerant gas R134a (HFC)

OR ENER-SAVE R290 is designed as direct replace and

retrofit refrigerant gas for ozone depleting refrigerant gas R22 (HCFC) Global Warming

Refrigerant gas R410a R411a and R407C

A Natural Solution to a Global Dilemma

A growing awareness of the environmental issues facing our planet has motivated many world

leaders and governments to embrace hydrocarbon technology as a long-term solution to

environmental concerns The European Common has adopted a new Standard EN 378 which

provides guidelines for the use and installation of hydrocarbon refrigerants in over 14

European countries In the past five years alone more than 8 million refrigerators and freezers

were manufactured in Germany and Denmark utilizing hydrocarbon technology

Features of HC Refrigerant Benefits

bull Highly efficient

bull Non-ozone depleting

bull Non-corrosive

bull Non-toxic

bull Non-global warming

bull Molecule Lighter

bull Energy Saving

bull Environmental Friendly

bull Enhance Life and Performance of AC System

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 12 Switch to Green Save the Environment Save The EARTH

In the US ASHRAE has rewritten Standard 15 to provide a framework for greater use of

hydrocarbon refrigerants In the past ten years more than one million gallons of our HC

Refrigerant has been used to cool between 3 million and 5 million motor vehicles throughout

North America During that period there have been no reported accidents or injuries

attributed to the use of our products

Hydrocarbon refrigerant gas helps to stop ozone depleting (ODP= 0) amp reduce the global-

warming crisis (GWP lt 3) fully compliance with UN Montreal Protocol amp Kyoto Protocol

Refrigerants Hydrocarbons (HC)

Chlorofluorocarbons (CFC)

Hydro Chlorofluorocarbons

(HCFC)

Hydro Fluorocarbons

(HFC)

ODP 0 09 004 0

GWP (CO2 = 1 100 year Basic)

3 10600 1800 1600

Ozone Depleting Substances controlled by UN Montreal Protocol

Global Warming Substances gt150 controlled by Kyoto Protocol

Label on Hydrocarbon Chiller

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 13 Switch to Green Save the Environment Save The EARTH

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 14 Switch to Green Save the Environment Save The EARTH

Safety Guideline and Minimum Room Ventilation

General Safety Issues All hydrocarbon refrigerants are highly flammable but non-toxic This gives them an ldquoA3rdquo classification according to MS 26782017 Reference should be made to this Standard which details the requirements for the safe use of flammable refrigerants in commercial and industrial applications For more detailed information on these safety requirements refer to the Institute of Refrigeration Safety Code for A3 refrigerants There are many other safety requirements that should be considered in the design and construction of all refrigerating and air conditioning installations regardless of the flammability of the refrigerant used General safety standards and codes of practice referenced in this document should be consulted for this additional information Allowable Refrigerant Charge The limiting factor associated with the use of hydrocarbon refrigerants is the refrigerant charge size the occupancy category and the room size The charge size requirements according to MS 26782017 are detailed in Table below Table Charge size requirements for various location categories

Systems with charge sizes of 015kg or less can be installed in any size of room Systems with charge size of more than 015kg room size should be such that a sudden loss of refrigerant shall not raise the mean concentration in the room above the practical limit (approximately 0008kgm3) Room Ventilation and Refrigerant Detection ldquoRefrigeration machinery rooms should be vented to the outside air by means of natural or mechanical ventilation Free Air Movement (All) ldquoEnsure that free air movement can be achieved around all refrigerant containing parts of the system Openings for outside air should be positioned such that short circuiting does not occurrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 15 Switch to Green Save the Environment Save The EARTH

Mechanical Ventilation (All) Where the refrigerant charge of a single refrigerating circuit exceeds the mass in Equation below a machinery room containing HC refrigerants must employ mechanical ventilation capable of providing the minimum ventilation rate The minimum ventilation rate depends upon the type of electrical protection within the machinery room Where the installation is protected according to the mechanical ventilation rate should be equivalent to at least 10-room volume changes per hour

Eg Minimum ventilation fan flow rate for extraction Vmin

Vmin = 0004 x m LFL

Where

Vmin = minimum volume flow rate of extract fan m3 s

m = largest mass of refrigerant within any single circuit of any refrigerating system kg

(lb)

LFL = Lower Flammability Limit of refrigerant kgm3

Vmin = = 0004 x 22kg 0038kgm3 = 232m3s

Suggested Ventilation Fan should be more than 232 m3s flow rate for

Ener-Save Hydrocarbon Air Cooled Screw Chiller

ldquoIn all cases a refrigerant detector should be linked into the initiation of mechanical ventilation The location of the sampling point should be at low level (where heavier than air refrigerants are used) The ventilation must either be running continuously or use a refrigerant detector starting device set at 25 of the Lower Flammability Level (LFL) Lower ventilation rates can be initiated upon detection of lower refrigerant concentrationsrdquo ldquoThe inlet of the extract ventilation should be located at floor level and ducted to a safe location Discharge points for vented air or openings for fresh air shall be positioned so as to avoid discharged air being drawn back in the building such as ventilation system inlets opening windows and doors and sources of ignition The rejection of flammable materials shall not present a hazard externally such as entering a building or being in contact with sources of ignition The mechanical ventilation system should be designed to maintain the room at a lower pressure than surrounding areas so that there will be no escape of leaked refrigerants to other areas Fans for mechanical ventilation should use motors of non-sparking type and the fan blades and cowling should be designed so as to avoid sparking as a result of metal-to-metal contact Mechanical ventilation equipment should be installed with independent emergency control located outside of and near to the machinery roomrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 16 Switch to Green Save the Environment Save The EARTH

Authorized and Qualified Installer

Product Manufacturer and HC Trainer

ENER-SAVE SDN BHD

(661220-A) Tel +607-557 2669 Fax +607-558 2669

Todays Savings Tomorrows Sustainable Living Switch To Green Save The Environment Save The Earth We Specialise in Natural Green Refrigerant - Hydrocarbon

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 8 Switch to Green Save the Environment Save The EARTH

1062672 Optimal slot design for passage of refrigerant inside motor casing 1062672 Refrigerant flows through outside of motor winding to provide the most efficient motor cooling 1062672 Sliding-fit stator easier for installation and removal

Part-load Effective Economizer Operation 1062672 Enhance cooling capacity as well as energy efficiency 1062672 Sustain optimum medium pressure by vapor injection through specially-designed slots in slide valve and compression casing 1062672 Effective under partial load and full load

Dual Capacity Control 1062672 Flanged-on solenoid coil easy for installation 1062672 3-step 4-step or continuous (33~100 25~100) capacity control system 1062672 Interchangeable by varying control logic without modification of solenoid valves

Durable Bearing Structure

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 9 Switch to Green Save the Environment Save The EARTH

1062672 High-quality bearings (radial and axial resistance) 1062672 Additional bearing for backward rotation 1062672 ________ _______________________ 1062672 Heavy-duty design 1062672 Longer bearing life compared to traditional 9-bearing design

High-performance Integral Oil Separator 1062672 Detachable demister for cleaning 1062672 Finer size of mesh 1062672 Low pressure drop and oil carry-over 1062672 Three-staged oil separation (RC2-1020~RC2-1530)

Complete Protection amp Accessories 1 Motor temperature sensor (optional) 106267210626721062672106267210626721062672 ldquoBuilt-inrdquo Pt100 or Pt1000 installed in motor winding 106267210626721062672106267210626721062672 Accurately registers motor temperature 106267210626721062672106267210626721062672 Controller can precisely initiate liquid injection to motor accordingly 2 Discharge Temperature Thermistor amp Motor Temperature Thermistor 106267210626721062672106267210626721062672 Totally integrated 106267210626721062672106267210626721062672 Effectively protect compressor in advance when any abnormal alarm occurs

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 10 Switch to Green Save the Environment Save The EARTH

3 Liquid Injection and Oil Cooler Function (Port amp Stop Pin) 106267210626721062672106267210626721062672 Both available on every Hanbell screw compressor 4 Oil Level Switch 106267210626721062672106267210626721062672 Ensure sufficient lubricant in compressor for better lubrication capacity control cooling and sealing 5 Heater (150W amp 300W) 106267210626721062672106267210626721062672 Increase lubricantrsquos flow-ability when compressor restarts after long-term stop 6 Connection for Pressure Differential Switch 106267210626721062672106267210626721062672 Easily detect clog in oil filter 106267210626721062672106267210626721062672 Assure effective capacity modulation and lubrication

Other Advantages 1062672 Low noise level and minimum vibration 1062672 Fewer quantity of parts in screw compressor than those in reciprocating compressor 1062672 Easy for maintenance and overhaul 1062672 Compact geometry easy for layout

Approval and Certification 1062672 Production by SOP conformed to major quality standards 1062672 Approved by ISO 9001-2000 UL CE(PED) Electronic Apparatus for Explosive Atmospheres (EX China) Lloydrsquos Register (vessel) Symbol of Excellence in Taiwan

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 11 Switch to Green Save the Environment Save The EARTH

Refrigerant Gas Selection

Hydrocarbon Refrigerant Gas HC refrigerant is designed to replace ozone-depleting global-warming refrigerants HC

Refrigerants are made of natural organic compounds mdash not a blend of pre-existing

chemically based synthetic refrigerants

In fact HC Refrigerant products can actually enhance the life and performance of air-

conditioning and refrigeration system Thanks to an anti-friction additive and their excellent

thermal and chemical stability After more than 12 years of extensive testing itrsquos clear that HC

Refrigerant Products provide more efficient performance than the man-made synthetic

refrigerants they replace

OR ENER-SAVE R600a is designed as direct replace and

retrofit refrigerant gas for Ozone Depleting refrigerant R12 (CFC) or Global Warming

refrigerant gas R134a (HFC)

OR ENER-SAVE R290 is designed as direct replace and

retrofit refrigerant gas for ozone depleting refrigerant gas R22 (HCFC) Global Warming

Refrigerant gas R410a R411a and R407C

A Natural Solution to a Global Dilemma

A growing awareness of the environmental issues facing our planet has motivated many world

leaders and governments to embrace hydrocarbon technology as a long-term solution to

environmental concerns The European Common has adopted a new Standard EN 378 which

provides guidelines for the use and installation of hydrocarbon refrigerants in over 14

European countries In the past five years alone more than 8 million refrigerators and freezers

were manufactured in Germany and Denmark utilizing hydrocarbon technology

Features of HC Refrigerant Benefits

bull Highly efficient

bull Non-ozone depleting

bull Non-corrosive

bull Non-toxic

bull Non-global warming

bull Molecule Lighter

bull Energy Saving

bull Environmental Friendly

bull Enhance Life and Performance of AC System

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 12 Switch to Green Save the Environment Save The EARTH

In the US ASHRAE has rewritten Standard 15 to provide a framework for greater use of

hydrocarbon refrigerants In the past ten years more than one million gallons of our HC

Refrigerant has been used to cool between 3 million and 5 million motor vehicles throughout

North America During that period there have been no reported accidents or injuries

attributed to the use of our products

Hydrocarbon refrigerant gas helps to stop ozone depleting (ODP= 0) amp reduce the global-

warming crisis (GWP lt 3) fully compliance with UN Montreal Protocol amp Kyoto Protocol

Refrigerants Hydrocarbons (HC)

Chlorofluorocarbons (CFC)

Hydro Chlorofluorocarbons

(HCFC)

Hydro Fluorocarbons

(HFC)

ODP 0 09 004 0

GWP (CO2 = 1 100 year Basic)

3 10600 1800 1600

Ozone Depleting Substances controlled by UN Montreal Protocol

Global Warming Substances gt150 controlled by Kyoto Protocol

Label on Hydrocarbon Chiller

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 13 Switch to Green Save the Environment Save The EARTH

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 14 Switch to Green Save the Environment Save The EARTH

Safety Guideline and Minimum Room Ventilation

General Safety Issues All hydrocarbon refrigerants are highly flammable but non-toxic This gives them an ldquoA3rdquo classification according to MS 26782017 Reference should be made to this Standard which details the requirements for the safe use of flammable refrigerants in commercial and industrial applications For more detailed information on these safety requirements refer to the Institute of Refrigeration Safety Code for A3 refrigerants There are many other safety requirements that should be considered in the design and construction of all refrigerating and air conditioning installations regardless of the flammability of the refrigerant used General safety standards and codes of practice referenced in this document should be consulted for this additional information Allowable Refrigerant Charge The limiting factor associated with the use of hydrocarbon refrigerants is the refrigerant charge size the occupancy category and the room size The charge size requirements according to MS 26782017 are detailed in Table below Table Charge size requirements for various location categories

Systems with charge sizes of 015kg or less can be installed in any size of room Systems with charge size of more than 015kg room size should be such that a sudden loss of refrigerant shall not raise the mean concentration in the room above the practical limit (approximately 0008kgm3) Room Ventilation and Refrigerant Detection ldquoRefrigeration machinery rooms should be vented to the outside air by means of natural or mechanical ventilation Free Air Movement (All) ldquoEnsure that free air movement can be achieved around all refrigerant containing parts of the system Openings for outside air should be positioned such that short circuiting does not occurrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 15 Switch to Green Save the Environment Save The EARTH

Mechanical Ventilation (All) Where the refrigerant charge of a single refrigerating circuit exceeds the mass in Equation below a machinery room containing HC refrigerants must employ mechanical ventilation capable of providing the minimum ventilation rate The minimum ventilation rate depends upon the type of electrical protection within the machinery room Where the installation is protected according to the mechanical ventilation rate should be equivalent to at least 10-room volume changes per hour

Eg Minimum ventilation fan flow rate for extraction Vmin

Vmin = 0004 x m LFL

Where

Vmin = minimum volume flow rate of extract fan m3 s

m = largest mass of refrigerant within any single circuit of any refrigerating system kg

(lb)

LFL = Lower Flammability Limit of refrigerant kgm3

Vmin = = 0004 x 22kg 0038kgm3 = 232m3s

Suggested Ventilation Fan should be more than 232 m3s flow rate for

Ener-Save Hydrocarbon Air Cooled Screw Chiller

ldquoIn all cases a refrigerant detector should be linked into the initiation of mechanical ventilation The location of the sampling point should be at low level (where heavier than air refrigerants are used) The ventilation must either be running continuously or use a refrigerant detector starting device set at 25 of the Lower Flammability Level (LFL) Lower ventilation rates can be initiated upon detection of lower refrigerant concentrationsrdquo ldquoThe inlet of the extract ventilation should be located at floor level and ducted to a safe location Discharge points for vented air or openings for fresh air shall be positioned so as to avoid discharged air being drawn back in the building such as ventilation system inlets opening windows and doors and sources of ignition The rejection of flammable materials shall not present a hazard externally such as entering a building or being in contact with sources of ignition The mechanical ventilation system should be designed to maintain the room at a lower pressure than surrounding areas so that there will be no escape of leaked refrigerants to other areas Fans for mechanical ventilation should use motors of non-sparking type and the fan blades and cowling should be designed so as to avoid sparking as a result of metal-to-metal contact Mechanical ventilation equipment should be installed with independent emergency control located outside of and near to the machinery roomrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 16 Switch to Green Save the Environment Save The EARTH

Authorized and Qualified Installer

Product Manufacturer and HC Trainer

ENER-SAVE SDN BHD

(661220-A) Tel +607-557 2669 Fax +607-558 2669

Todays Savings Tomorrows Sustainable Living Switch To Green Save The Environment Save The Earth We Specialise in Natural Green Refrigerant - Hydrocarbon

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 9 Switch to Green Save the Environment Save The EARTH

1062672 High-quality bearings (radial and axial resistance) 1062672 Additional bearing for backward rotation 1062672 ________ _______________________ 1062672 Heavy-duty design 1062672 Longer bearing life compared to traditional 9-bearing design

High-performance Integral Oil Separator 1062672 Detachable demister for cleaning 1062672 Finer size of mesh 1062672 Low pressure drop and oil carry-over 1062672 Three-staged oil separation (RC2-1020~RC2-1530)

Complete Protection amp Accessories 1 Motor temperature sensor (optional) 106267210626721062672106267210626721062672 ldquoBuilt-inrdquo Pt100 or Pt1000 installed in motor winding 106267210626721062672106267210626721062672 Accurately registers motor temperature 106267210626721062672106267210626721062672 Controller can precisely initiate liquid injection to motor accordingly 2 Discharge Temperature Thermistor amp Motor Temperature Thermistor 106267210626721062672106267210626721062672 Totally integrated 106267210626721062672106267210626721062672 Effectively protect compressor in advance when any abnormal alarm occurs

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 10 Switch to Green Save the Environment Save The EARTH

3 Liquid Injection and Oil Cooler Function (Port amp Stop Pin) 106267210626721062672106267210626721062672 Both available on every Hanbell screw compressor 4 Oil Level Switch 106267210626721062672106267210626721062672 Ensure sufficient lubricant in compressor for better lubrication capacity control cooling and sealing 5 Heater (150W amp 300W) 106267210626721062672106267210626721062672 Increase lubricantrsquos flow-ability when compressor restarts after long-term stop 6 Connection for Pressure Differential Switch 106267210626721062672106267210626721062672 Easily detect clog in oil filter 106267210626721062672106267210626721062672 Assure effective capacity modulation and lubrication

Other Advantages 1062672 Low noise level and minimum vibration 1062672 Fewer quantity of parts in screw compressor than those in reciprocating compressor 1062672 Easy for maintenance and overhaul 1062672 Compact geometry easy for layout

Approval and Certification 1062672 Production by SOP conformed to major quality standards 1062672 Approved by ISO 9001-2000 UL CE(PED) Electronic Apparatus for Explosive Atmospheres (EX China) Lloydrsquos Register (vessel) Symbol of Excellence in Taiwan

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 11 Switch to Green Save the Environment Save The EARTH

Refrigerant Gas Selection

Hydrocarbon Refrigerant Gas HC refrigerant is designed to replace ozone-depleting global-warming refrigerants HC

Refrigerants are made of natural organic compounds mdash not a blend of pre-existing

chemically based synthetic refrigerants

In fact HC Refrigerant products can actually enhance the life and performance of air-

conditioning and refrigeration system Thanks to an anti-friction additive and their excellent

thermal and chemical stability After more than 12 years of extensive testing itrsquos clear that HC

Refrigerant Products provide more efficient performance than the man-made synthetic

refrigerants they replace

OR ENER-SAVE R600a is designed as direct replace and

retrofit refrigerant gas for Ozone Depleting refrigerant R12 (CFC) or Global Warming

refrigerant gas R134a (HFC)

OR ENER-SAVE R290 is designed as direct replace and

retrofit refrigerant gas for ozone depleting refrigerant gas R22 (HCFC) Global Warming

Refrigerant gas R410a R411a and R407C

A Natural Solution to a Global Dilemma

A growing awareness of the environmental issues facing our planet has motivated many world

leaders and governments to embrace hydrocarbon technology as a long-term solution to

environmental concerns The European Common has adopted a new Standard EN 378 which

provides guidelines for the use and installation of hydrocarbon refrigerants in over 14

European countries In the past five years alone more than 8 million refrigerators and freezers

were manufactured in Germany and Denmark utilizing hydrocarbon technology

Features of HC Refrigerant Benefits

bull Highly efficient

bull Non-ozone depleting

bull Non-corrosive

bull Non-toxic

bull Non-global warming

bull Molecule Lighter

bull Energy Saving

bull Environmental Friendly

bull Enhance Life and Performance of AC System

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 12 Switch to Green Save the Environment Save The EARTH

In the US ASHRAE has rewritten Standard 15 to provide a framework for greater use of

hydrocarbon refrigerants In the past ten years more than one million gallons of our HC

Refrigerant has been used to cool between 3 million and 5 million motor vehicles throughout

North America During that period there have been no reported accidents or injuries

attributed to the use of our products

Hydrocarbon refrigerant gas helps to stop ozone depleting (ODP= 0) amp reduce the global-

warming crisis (GWP lt 3) fully compliance with UN Montreal Protocol amp Kyoto Protocol

Refrigerants Hydrocarbons (HC)

Chlorofluorocarbons (CFC)

Hydro Chlorofluorocarbons

(HCFC)

Hydro Fluorocarbons

(HFC)

ODP 0 09 004 0

GWP (CO2 = 1 100 year Basic)

3 10600 1800 1600

Ozone Depleting Substances controlled by UN Montreal Protocol

Global Warming Substances gt150 controlled by Kyoto Protocol

Label on Hydrocarbon Chiller

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 13 Switch to Green Save the Environment Save The EARTH

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 14 Switch to Green Save the Environment Save The EARTH

Safety Guideline and Minimum Room Ventilation

General Safety Issues All hydrocarbon refrigerants are highly flammable but non-toxic This gives them an ldquoA3rdquo classification according to MS 26782017 Reference should be made to this Standard which details the requirements for the safe use of flammable refrigerants in commercial and industrial applications For more detailed information on these safety requirements refer to the Institute of Refrigeration Safety Code for A3 refrigerants There are many other safety requirements that should be considered in the design and construction of all refrigerating and air conditioning installations regardless of the flammability of the refrigerant used General safety standards and codes of practice referenced in this document should be consulted for this additional information Allowable Refrigerant Charge The limiting factor associated with the use of hydrocarbon refrigerants is the refrigerant charge size the occupancy category and the room size The charge size requirements according to MS 26782017 are detailed in Table below Table Charge size requirements for various location categories

Systems with charge sizes of 015kg or less can be installed in any size of room Systems with charge size of more than 015kg room size should be such that a sudden loss of refrigerant shall not raise the mean concentration in the room above the practical limit (approximately 0008kgm3) Room Ventilation and Refrigerant Detection ldquoRefrigeration machinery rooms should be vented to the outside air by means of natural or mechanical ventilation Free Air Movement (All) ldquoEnsure that free air movement can be achieved around all refrigerant containing parts of the system Openings for outside air should be positioned such that short circuiting does not occurrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 15 Switch to Green Save the Environment Save The EARTH

Mechanical Ventilation (All) Where the refrigerant charge of a single refrigerating circuit exceeds the mass in Equation below a machinery room containing HC refrigerants must employ mechanical ventilation capable of providing the minimum ventilation rate The minimum ventilation rate depends upon the type of electrical protection within the machinery room Where the installation is protected according to the mechanical ventilation rate should be equivalent to at least 10-room volume changes per hour

Eg Minimum ventilation fan flow rate for extraction Vmin

Vmin = 0004 x m LFL

Where

Vmin = minimum volume flow rate of extract fan m3 s

m = largest mass of refrigerant within any single circuit of any refrigerating system kg

(lb)

LFL = Lower Flammability Limit of refrigerant kgm3

Vmin = = 0004 x 22kg 0038kgm3 = 232m3s

Suggested Ventilation Fan should be more than 232 m3s flow rate for

Ener-Save Hydrocarbon Air Cooled Screw Chiller

ldquoIn all cases a refrigerant detector should be linked into the initiation of mechanical ventilation The location of the sampling point should be at low level (where heavier than air refrigerants are used) The ventilation must either be running continuously or use a refrigerant detector starting device set at 25 of the Lower Flammability Level (LFL) Lower ventilation rates can be initiated upon detection of lower refrigerant concentrationsrdquo ldquoThe inlet of the extract ventilation should be located at floor level and ducted to a safe location Discharge points for vented air or openings for fresh air shall be positioned so as to avoid discharged air being drawn back in the building such as ventilation system inlets opening windows and doors and sources of ignition The rejection of flammable materials shall not present a hazard externally such as entering a building or being in contact with sources of ignition The mechanical ventilation system should be designed to maintain the room at a lower pressure than surrounding areas so that there will be no escape of leaked refrigerants to other areas Fans for mechanical ventilation should use motors of non-sparking type and the fan blades and cowling should be designed so as to avoid sparking as a result of metal-to-metal contact Mechanical ventilation equipment should be installed with independent emergency control located outside of and near to the machinery roomrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 16 Switch to Green Save the Environment Save The EARTH

Authorized and Qualified Installer

Product Manufacturer and HC Trainer

ENER-SAVE SDN BHD

(661220-A) Tel +607-557 2669 Fax +607-558 2669

Todays Savings Tomorrows Sustainable Living Switch To Green Save The Environment Save The Earth We Specialise in Natural Green Refrigerant - Hydrocarbon

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 10 Switch to Green Save the Environment Save The EARTH

3 Liquid Injection and Oil Cooler Function (Port amp Stop Pin) 106267210626721062672106267210626721062672 Both available on every Hanbell screw compressor 4 Oil Level Switch 106267210626721062672106267210626721062672 Ensure sufficient lubricant in compressor for better lubrication capacity control cooling and sealing 5 Heater (150W amp 300W) 106267210626721062672106267210626721062672 Increase lubricantrsquos flow-ability when compressor restarts after long-term stop 6 Connection for Pressure Differential Switch 106267210626721062672106267210626721062672 Easily detect clog in oil filter 106267210626721062672106267210626721062672 Assure effective capacity modulation and lubrication

Other Advantages 1062672 Low noise level and minimum vibration 1062672 Fewer quantity of parts in screw compressor than those in reciprocating compressor 1062672 Easy for maintenance and overhaul 1062672 Compact geometry easy for layout

Approval and Certification 1062672 Production by SOP conformed to major quality standards 1062672 Approved by ISO 9001-2000 UL CE(PED) Electronic Apparatus for Explosive Atmospheres (EX China) Lloydrsquos Register (vessel) Symbol of Excellence in Taiwan

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 11 Switch to Green Save the Environment Save The EARTH

Refrigerant Gas Selection

Hydrocarbon Refrigerant Gas HC refrigerant is designed to replace ozone-depleting global-warming refrigerants HC

Refrigerants are made of natural organic compounds mdash not a blend of pre-existing

chemically based synthetic refrigerants

In fact HC Refrigerant products can actually enhance the life and performance of air-

conditioning and refrigeration system Thanks to an anti-friction additive and their excellent

thermal and chemical stability After more than 12 years of extensive testing itrsquos clear that HC

Refrigerant Products provide more efficient performance than the man-made synthetic

refrigerants they replace

OR ENER-SAVE R600a is designed as direct replace and

retrofit refrigerant gas for Ozone Depleting refrigerant R12 (CFC) or Global Warming

refrigerant gas R134a (HFC)

OR ENER-SAVE R290 is designed as direct replace and

retrofit refrigerant gas for ozone depleting refrigerant gas R22 (HCFC) Global Warming

Refrigerant gas R410a R411a and R407C

A Natural Solution to a Global Dilemma

A growing awareness of the environmental issues facing our planet has motivated many world

leaders and governments to embrace hydrocarbon technology as a long-term solution to

environmental concerns The European Common has adopted a new Standard EN 378 which

provides guidelines for the use and installation of hydrocarbon refrigerants in over 14

European countries In the past five years alone more than 8 million refrigerators and freezers

were manufactured in Germany and Denmark utilizing hydrocarbon technology

Features of HC Refrigerant Benefits

bull Highly efficient

bull Non-ozone depleting

bull Non-corrosive

bull Non-toxic

bull Non-global warming

bull Molecule Lighter

bull Energy Saving

bull Environmental Friendly

bull Enhance Life and Performance of AC System

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 12 Switch to Green Save the Environment Save The EARTH

In the US ASHRAE has rewritten Standard 15 to provide a framework for greater use of

hydrocarbon refrigerants In the past ten years more than one million gallons of our HC

Refrigerant has been used to cool between 3 million and 5 million motor vehicles throughout

North America During that period there have been no reported accidents or injuries

attributed to the use of our products

Hydrocarbon refrigerant gas helps to stop ozone depleting (ODP= 0) amp reduce the global-

warming crisis (GWP lt 3) fully compliance with UN Montreal Protocol amp Kyoto Protocol

Refrigerants Hydrocarbons (HC)

Chlorofluorocarbons (CFC)

Hydro Chlorofluorocarbons

(HCFC)

Hydro Fluorocarbons

(HFC)

ODP 0 09 004 0

GWP (CO2 = 1 100 year Basic)

3 10600 1800 1600

Ozone Depleting Substances controlled by UN Montreal Protocol

Global Warming Substances gt150 controlled by Kyoto Protocol

Label on Hydrocarbon Chiller

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 13 Switch to Green Save the Environment Save The EARTH

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 14 Switch to Green Save the Environment Save The EARTH

Safety Guideline and Minimum Room Ventilation

General Safety Issues All hydrocarbon refrigerants are highly flammable but non-toxic This gives them an ldquoA3rdquo classification according to MS 26782017 Reference should be made to this Standard which details the requirements for the safe use of flammable refrigerants in commercial and industrial applications For more detailed information on these safety requirements refer to the Institute of Refrigeration Safety Code for A3 refrigerants There are many other safety requirements that should be considered in the design and construction of all refrigerating and air conditioning installations regardless of the flammability of the refrigerant used General safety standards and codes of practice referenced in this document should be consulted for this additional information Allowable Refrigerant Charge The limiting factor associated with the use of hydrocarbon refrigerants is the refrigerant charge size the occupancy category and the room size The charge size requirements according to MS 26782017 are detailed in Table below Table Charge size requirements for various location categories

Systems with charge sizes of 015kg or less can be installed in any size of room Systems with charge size of more than 015kg room size should be such that a sudden loss of refrigerant shall not raise the mean concentration in the room above the practical limit (approximately 0008kgm3) Room Ventilation and Refrigerant Detection ldquoRefrigeration machinery rooms should be vented to the outside air by means of natural or mechanical ventilation Free Air Movement (All) ldquoEnsure that free air movement can be achieved around all refrigerant containing parts of the system Openings for outside air should be positioned such that short circuiting does not occurrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 15 Switch to Green Save the Environment Save The EARTH

Mechanical Ventilation (All) Where the refrigerant charge of a single refrigerating circuit exceeds the mass in Equation below a machinery room containing HC refrigerants must employ mechanical ventilation capable of providing the minimum ventilation rate The minimum ventilation rate depends upon the type of electrical protection within the machinery room Where the installation is protected according to the mechanical ventilation rate should be equivalent to at least 10-room volume changes per hour

Eg Minimum ventilation fan flow rate for extraction Vmin

Vmin = 0004 x m LFL

Where

Vmin = minimum volume flow rate of extract fan m3 s

m = largest mass of refrigerant within any single circuit of any refrigerating system kg

(lb)

LFL = Lower Flammability Limit of refrigerant kgm3

Vmin = = 0004 x 22kg 0038kgm3 = 232m3s

Suggested Ventilation Fan should be more than 232 m3s flow rate for

Ener-Save Hydrocarbon Air Cooled Screw Chiller

ldquoIn all cases a refrigerant detector should be linked into the initiation of mechanical ventilation The location of the sampling point should be at low level (where heavier than air refrigerants are used) The ventilation must either be running continuously or use a refrigerant detector starting device set at 25 of the Lower Flammability Level (LFL) Lower ventilation rates can be initiated upon detection of lower refrigerant concentrationsrdquo ldquoThe inlet of the extract ventilation should be located at floor level and ducted to a safe location Discharge points for vented air or openings for fresh air shall be positioned so as to avoid discharged air being drawn back in the building such as ventilation system inlets opening windows and doors and sources of ignition The rejection of flammable materials shall not present a hazard externally such as entering a building or being in contact with sources of ignition The mechanical ventilation system should be designed to maintain the room at a lower pressure than surrounding areas so that there will be no escape of leaked refrigerants to other areas Fans for mechanical ventilation should use motors of non-sparking type and the fan blades and cowling should be designed so as to avoid sparking as a result of metal-to-metal contact Mechanical ventilation equipment should be installed with independent emergency control located outside of and near to the machinery roomrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 16 Switch to Green Save the Environment Save The EARTH

Authorized and Qualified Installer

Product Manufacturer and HC Trainer

ENER-SAVE SDN BHD

(661220-A) Tel +607-557 2669 Fax +607-558 2669

Todays Savings Tomorrows Sustainable Living Switch To Green Save The Environment Save The Earth We Specialise in Natural Green Refrigerant - Hydrocarbon

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 11 Switch to Green Save the Environment Save The EARTH

Refrigerant Gas Selection

Hydrocarbon Refrigerant Gas HC refrigerant is designed to replace ozone-depleting global-warming refrigerants HC

Refrigerants are made of natural organic compounds mdash not a blend of pre-existing

chemically based synthetic refrigerants

In fact HC Refrigerant products can actually enhance the life and performance of air-

conditioning and refrigeration system Thanks to an anti-friction additive and their excellent

thermal and chemical stability After more than 12 years of extensive testing itrsquos clear that HC

Refrigerant Products provide more efficient performance than the man-made synthetic

refrigerants they replace

OR ENER-SAVE R600a is designed as direct replace and

retrofit refrigerant gas for Ozone Depleting refrigerant R12 (CFC) or Global Warming

refrigerant gas R134a (HFC)

OR ENER-SAVE R290 is designed as direct replace and

retrofit refrigerant gas for ozone depleting refrigerant gas R22 (HCFC) Global Warming

Refrigerant gas R410a R411a and R407C

A Natural Solution to a Global Dilemma

A growing awareness of the environmental issues facing our planet has motivated many world

leaders and governments to embrace hydrocarbon technology as a long-term solution to

environmental concerns The European Common has adopted a new Standard EN 378 which

provides guidelines for the use and installation of hydrocarbon refrigerants in over 14

European countries In the past five years alone more than 8 million refrigerators and freezers

were manufactured in Germany and Denmark utilizing hydrocarbon technology

Features of HC Refrigerant Benefits

bull Highly efficient

bull Non-ozone depleting

bull Non-corrosive

bull Non-toxic

bull Non-global warming

bull Molecule Lighter

bull Energy Saving

bull Environmental Friendly

bull Enhance Life and Performance of AC System

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 12 Switch to Green Save the Environment Save The EARTH

In the US ASHRAE has rewritten Standard 15 to provide a framework for greater use of

hydrocarbon refrigerants In the past ten years more than one million gallons of our HC

Refrigerant has been used to cool between 3 million and 5 million motor vehicles throughout

North America During that period there have been no reported accidents or injuries

attributed to the use of our products

Hydrocarbon refrigerant gas helps to stop ozone depleting (ODP= 0) amp reduce the global-

warming crisis (GWP lt 3) fully compliance with UN Montreal Protocol amp Kyoto Protocol

Refrigerants Hydrocarbons (HC)

Chlorofluorocarbons (CFC)

Hydro Chlorofluorocarbons

(HCFC)

Hydro Fluorocarbons

(HFC)

ODP 0 09 004 0

GWP (CO2 = 1 100 year Basic)

3 10600 1800 1600

Ozone Depleting Substances controlled by UN Montreal Protocol

Global Warming Substances gt150 controlled by Kyoto Protocol

Label on Hydrocarbon Chiller

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 13 Switch to Green Save the Environment Save The EARTH

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 14 Switch to Green Save the Environment Save The EARTH

Safety Guideline and Minimum Room Ventilation

General Safety Issues All hydrocarbon refrigerants are highly flammable but non-toxic This gives them an ldquoA3rdquo classification according to MS 26782017 Reference should be made to this Standard which details the requirements for the safe use of flammable refrigerants in commercial and industrial applications For more detailed information on these safety requirements refer to the Institute of Refrigeration Safety Code for A3 refrigerants There are many other safety requirements that should be considered in the design and construction of all refrigerating and air conditioning installations regardless of the flammability of the refrigerant used General safety standards and codes of practice referenced in this document should be consulted for this additional information Allowable Refrigerant Charge The limiting factor associated with the use of hydrocarbon refrigerants is the refrigerant charge size the occupancy category and the room size The charge size requirements according to MS 26782017 are detailed in Table below Table Charge size requirements for various location categories

Systems with charge sizes of 015kg or less can be installed in any size of room Systems with charge size of more than 015kg room size should be such that a sudden loss of refrigerant shall not raise the mean concentration in the room above the practical limit (approximately 0008kgm3) Room Ventilation and Refrigerant Detection ldquoRefrigeration machinery rooms should be vented to the outside air by means of natural or mechanical ventilation Free Air Movement (All) ldquoEnsure that free air movement can be achieved around all refrigerant containing parts of the system Openings for outside air should be positioned such that short circuiting does not occurrdquo

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Mechanical Ventilation (All) Where the refrigerant charge of a single refrigerating circuit exceeds the mass in Equation below a machinery room containing HC refrigerants must employ mechanical ventilation capable of providing the minimum ventilation rate The minimum ventilation rate depends upon the type of electrical protection within the machinery room Where the installation is protected according to the mechanical ventilation rate should be equivalent to at least 10-room volume changes per hour

Eg Minimum ventilation fan flow rate for extraction Vmin

Vmin = 0004 x m LFL

Where

Vmin = minimum volume flow rate of extract fan m3 s

m = largest mass of refrigerant within any single circuit of any refrigerating system kg

(lb)

LFL = Lower Flammability Limit of refrigerant kgm3

Vmin = = 0004 x 22kg 0038kgm3 = 232m3s

Suggested Ventilation Fan should be more than 232 m3s flow rate for

Ener-Save Hydrocarbon Air Cooled Screw Chiller

ldquoIn all cases a refrigerant detector should be linked into the initiation of mechanical ventilation The location of the sampling point should be at low level (where heavier than air refrigerants are used) The ventilation must either be running continuously or use a refrigerant detector starting device set at 25 of the Lower Flammability Level (LFL) Lower ventilation rates can be initiated upon detection of lower refrigerant concentrationsrdquo ldquoThe inlet of the extract ventilation should be located at floor level and ducted to a safe location Discharge points for vented air or openings for fresh air shall be positioned so as to avoid discharged air being drawn back in the building such as ventilation system inlets opening windows and doors and sources of ignition The rejection of flammable materials shall not present a hazard externally such as entering a building or being in contact with sources of ignition The mechanical ventilation system should be designed to maintain the room at a lower pressure than surrounding areas so that there will be no escape of leaked refrigerants to other areas Fans for mechanical ventilation should use motors of non-sparking type and the fan blades and cowling should be designed so as to avoid sparking as a result of metal-to-metal contact Mechanical ventilation equipment should be installed with independent emergency control located outside of and near to the machinery roomrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 16 Switch to Green Save the Environment Save The EARTH

Authorized and Qualified Installer

Product Manufacturer and HC Trainer

ENER-SAVE SDN BHD

(661220-A) Tel +607-557 2669 Fax +607-558 2669

Todays Savings Tomorrows Sustainable Living Switch To Green Save The Environment Save The Earth We Specialise in Natural Green Refrigerant - Hydrocarbon

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 12 Switch to Green Save the Environment Save The EARTH

In the US ASHRAE has rewritten Standard 15 to provide a framework for greater use of

hydrocarbon refrigerants In the past ten years more than one million gallons of our HC

Refrigerant has been used to cool between 3 million and 5 million motor vehicles throughout

North America During that period there have been no reported accidents or injuries

attributed to the use of our products

Hydrocarbon refrigerant gas helps to stop ozone depleting (ODP= 0) amp reduce the global-

warming crisis (GWP lt 3) fully compliance with UN Montreal Protocol amp Kyoto Protocol

Refrigerants Hydrocarbons (HC)

Chlorofluorocarbons (CFC)

Hydro Chlorofluorocarbons

(HCFC)

Hydro Fluorocarbons

(HFC)

ODP 0 09 004 0

GWP (CO2 = 1 100 year Basic)

3 10600 1800 1600

Ozone Depleting Substances controlled by UN Montreal Protocol

Global Warming Substances gt150 controlled by Kyoto Protocol

Label on Hydrocarbon Chiller

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 13 Switch to Green Save the Environment Save The EARTH

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 14 Switch to Green Save the Environment Save The EARTH

Safety Guideline and Minimum Room Ventilation

General Safety Issues All hydrocarbon refrigerants are highly flammable but non-toxic This gives them an ldquoA3rdquo classification according to MS 26782017 Reference should be made to this Standard which details the requirements for the safe use of flammable refrigerants in commercial and industrial applications For more detailed information on these safety requirements refer to the Institute of Refrigeration Safety Code for A3 refrigerants There are many other safety requirements that should be considered in the design and construction of all refrigerating and air conditioning installations regardless of the flammability of the refrigerant used General safety standards and codes of practice referenced in this document should be consulted for this additional information Allowable Refrigerant Charge The limiting factor associated with the use of hydrocarbon refrigerants is the refrigerant charge size the occupancy category and the room size The charge size requirements according to MS 26782017 are detailed in Table below Table Charge size requirements for various location categories

Systems with charge sizes of 015kg or less can be installed in any size of room Systems with charge size of more than 015kg room size should be such that a sudden loss of refrigerant shall not raise the mean concentration in the room above the practical limit (approximately 0008kgm3) Room Ventilation and Refrigerant Detection ldquoRefrigeration machinery rooms should be vented to the outside air by means of natural or mechanical ventilation Free Air Movement (All) ldquoEnsure that free air movement can be achieved around all refrigerant containing parts of the system Openings for outside air should be positioned such that short circuiting does not occurrdquo

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P a g e | 15 Switch to Green Save the Environment Save The EARTH

Mechanical Ventilation (All) Where the refrigerant charge of a single refrigerating circuit exceeds the mass in Equation below a machinery room containing HC refrigerants must employ mechanical ventilation capable of providing the minimum ventilation rate The minimum ventilation rate depends upon the type of electrical protection within the machinery room Where the installation is protected according to the mechanical ventilation rate should be equivalent to at least 10-room volume changes per hour

Eg Minimum ventilation fan flow rate for extraction Vmin

Vmin = 0004 x m LFL

Where

Vmin = minimum volume flow rate of extract fan m3 s

m = largest mass of refrigerant within any single circuit of any refrigerating system kg

(lb)

LFL = Lower Flammability Limit of refrigerant kgm3

Vmin = = 0004 x 22kg 0038kgm3 = 232m3s

Suggested Ventilation Fan should be more than 232 m3s flow rate for

Ener-Save Hydrocarbon Air Cooled Screw Chiller

ldquoIn all cases a refrigerant detector should be linked into the initiation of mechanical ventilation The location of the sampling point should be at low level (where heavier than air refrigerants are used) The ventilation must either be running continuously or use a refrigerant detector starting device set at 25 of the Lower Flammability Level (LFL) Lower ventilation rates can be initiated upon detection of lower refrigerant concentrationsrdquo ldquoThe inlet of the extract ventilation should be located at floor level and ducted to a safe location Discharge points for vented air or openings for fresh air shall be positioned so as to avoid discharged air being drawn back in the building such as ventilation system inlets opening windows and doors and sources of ignition The rejection of flammable materials shall not present a hazard externally such as entering a building or being in contact with sources of ignition The mechanical ventilation system should be designed to maintain the room at a lower pressure than surrounding areas so that there will be no escape of leaked refrigerants to other areas Fans for mechanical ventilation should use motors of non-sparking type and the fan blades and cowling should be designed so as to avoid sparking as a result of metal-to-metal contact Mechanical ventilation equipment should be installed with independent emergency control located outside of and near to the machinery roomrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 16 Switch to Green Save the Environment Save The EARTH

Authorized and Qualified Installer

Product Manufacturer and HC Trainer

ENER-SAVE SDN BHD

(661220-A) Tel +607-557 2669 Fax +607-558 2669

Todays Savings Tomorrows Sustainable Living Switch To Green Save The Environment Save The Earth We Specialise in Natural Green Refrigerant - Hydrocarbon

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 13 Switch to Green Save the Environment Save The EARTH

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 14 Switch to Green Save the Environment Save The EARTH

Safety Guideline and Minimum Room Ventilation

General Safety Issues All hydrocarbon refrigerants are highly flammable but non-toxic This gives them an ldquoA3rdquo classification according to MS 26782017 Reference should be made to this Standard which details the requirements for the safe use of flammable refrigerants in commercial and industrial applications For more detailed information on these safety requirements refer to the Institute of Refrigeration Safety Code for A3 refrigerants There are many other safety requirements that should be considered in the design and construction of all refrigerating and air conditioning installations regardless of the flammability of the refrigerant used General safety standards and codes of practice referenced in this document should be consulted for this additional information Allowable Refrigerant Charge The limiting factor associated with the use of hydrocarbon refrigerants is the refrigerant charge size the occupancy category and the room size The charge size requirements according to MS 26782017 are detailed in Table below Table Charge size requirements for various location categories

Systems with charge sizes of 015kg or less can be installed in any size of room Systems with charge size of more than 015kg room size should be such that a sudden loss of refrigerant shall not raise the mean concentration in the room above the practical limit (approximately 0008kgm3) Room Ventilation and Refrigerant Detection ldquoRefrigeration machinery rooms should be vented to the outside air by means of natural or mechanical ventilation Free Air Movement (All) ldquoEnsure that free air movement can be achieved around all refrigerant containing parts of the system Openings for outside air should be positioned such that short circuiting does not occurrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 15 Switch to Green Save the Environment Save The EARTH

Mechanical Ventilation (All) Where the refrigerant charge of a single refrigerating circuit exceeds the mass in Equation below a machinery room containing HC refrigerants must employ mechanical ventilation capable of providing the minimum ventilation rate The minimum ventilation rate depends upon the type of electrical protection within the machinery room Where the installation is protected according to the mechanical ventilation rate should be equivalent to at least 10-room volume changes per hour

Eg Minimum ventilation fan flow rate for extraction Vmin

Vmin = 0004 x m LFL

Where

Vmin = minimum volume flow rate of extract fan m3 s

m = largest mass of refrigerant within any single circuit of any refrigerating system kg

(lb)

LFL = Lower Flammability Limit of refrigerant kgm3

Vmin = = 0004 x 22kg 0038kgm3 = 232m3s

Suggested Ventilation Fan should be more than 232 m3s flow rate for

Ener-Save Hydrocarbon Air Cooled Screw Chiller

ldquoIn all cases a refrigerant detector should be linked into the initiation of mechanical ventilation The location of the sampling point should be at low level (where heavier than air refrigerants are used) The ventilation must either be running continuously or use a refrigerant detector starting device set at 25 of the Lower Flammability Level (LFL) Lower ventilation rates can be initiated upon detection of lower refrigerant concentrationsrdquo ldquoThe inlet of the extract ventilation should be located at floor level and ducted to a safe location Discharge points for vented air or openings for fresh air shall be positioned so as to avoid discharged air being drawn back in the building such as ventilation system inlets opening windows and doors and sources of ignition The rejection of flammable materials shall not present a hazard externally such as entering a building or being in contact with sources of ignition The mechanical ventilation system should be designed to maintain the room at a lower pressure than surrounding areas so that there will be no escape of leaked refrigerants to other areas Fans for mechanical ventilation should use motors of non-sparking type and the fan blades and cowling should be designed so as to avoid sparking as a result of metal-to-metal contact Mechanical ventilation equipment should be installed with independent emergency control located outside of and near to the machinery roomrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 16 Switch to Green Save the Environment Save The EARTH

Authorized and Qualified Installer

Product Manufacturer and HC Trainer

ENER-SAVE SDN BHD

(661220-A) Tel +607-557 2669 Fax +607-558 2669

Todays Savings Tomorrows Sustainable Living Switch To Green Save The Environment Save The Earth We Specialise in Natural Green Refrigerant - Hydrocarbon

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 14 Switch to Green Save the Environment Save The EARTH

Safety Guideline and Minimum Room Ventilation

General Safety Issues All hydrocarbon refrigerants are highly flammable but non-toxic This gives them an ldquoA3rdquo classification according to MS 26782017 Reference should be made to this Standard which details the requirements for the safe use of flammable refrigerants in commercial and industrial applications For more detailed information on these safety requirements refer to the Institute of Refrigeration Safety Code for A3 refrigerants There are many other safety requirements that should be considered in the design and construction of all refrigerating and air conditioning installations regardless of the flammability of the refrigerant used General safety standards and codes of practice referenced in this document should be consulted for this additional information Allowable Refrigerant Charge The limiting factor associated with the use of hydrocarbon refrigerants is the refrigerant charge size the occupancy category and the room size The charge size requirements according to MS 26782017 are detailed in Table below Table Charge size requirements for various location categories

Systems with charge sizes of 015kg or less can be installed in any size of room Systems with charge size of more than 015kg room size should be such that a sudden loss of refrigerant shall not raise the mean concentration in the room above the practical limit (approximately 0008kgm3) Room Ventilation and Refrigerant Detection ldquoRefrigeration machinery rooms should be vented to the outside air by means of natural or mechanical ventilation Free Air Movement (All) ldquoEnsure that free air movement can be achieved around all refrigerant containing parts of the system Openings for outside air should be positioned such that short circuiting does not occurrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 15 Switch to Green Save the Environment Save The EARTH

Mechanical Ventilation (All) Where the refrigerant charge of a single refrigerating circuit exceeds the mass in Equation below a machinery room containing HC refrigerants must employ mechanical ventilation capable of providing the minimum ventilation rate The minimum ventilation rate depends upon the type of electrical protection within the machinery room Where the installation is protected according to the mechanical ventilation rate should be equivalent to at least 10-room volume changes per hour

Eg Minimum ventilation fan flow rate for extraction Vmin

Vmin = 0004 x m LFL

Where

Vmin = minimum volume flow rate of extract fan m3 s

m = largest mass of refrigerant within any single circuit of any refrigerating system kg

(lb)

LFL = Lower Flammability Limit of refrigerant kgm3

Vmin = = 0004 x 22kg 0038kgm3 = 232m3s

Suggested Ventilation Fan should be more than 232 m3s flow rate for

Ener-Save Hydrocarbon Air Cooled Screw Chiller

ldquoIn all cases a refrigerant detector should be linked into the initiation of mechanical ventilation The location of the sampling point should be at low level (where heavier than air refrigerants are used) The ventilation must either be running continuously or use a refrigerant detector starting device set at 25 of the Lower Flammability Level (LFL) Lower ventilation rates can be initiated upon detection of lower refrigerant concentrationsrdquo ldquoThe inlet of the extract ventilation should be located at floor level and ducted to a safe location Discharge points for vented air or openings for fresh air shall be positioned so as to avoid discharged air being drawn back in the building such as ventilation system inlets opening windows and doors and sources of ignition The rejection of flammable materials shall not present a hazard externally such as entering a building or being in contact with sources of ignition The mechanical ventilation system should be designed to maintain the room at a lower pressure than surrounding areas so that there will be no escape of leaked refrigerants to other areas Fans for mechanical ventilation should use motors of non-sparking type and the fan blades and cowling should be designed so as to avoid sparking as a result of metal-to-metal contact Mechanical ventilation equipment should be installed with independent emergency control located outside of and near to the machinery roomrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 16 Switch to Green Save the Environment Save The EARTH

Authorized and Qualified Installer

Product Manufacturer and HC Trainer

ENER-SAVE SDN BHD

(661220-A) Tel +607-557 2669 Fax +607-558 2669

Todays Savings Tomorrows Sustainable Living Switch To Green Save The Environment Save The Earth We Specialise in Natural Green Refrigerant - Hydrocarbon

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 15 Switch to Green Save the Environment Save The EARTH

Mechanical Ventilation (All) Where the refrigerant charge of a single refrigerating circuit exceeds the mass in Equation below a machinery room containing HC refrigerants must employ mechanical ventilation capable of providing the minimum ventilation rate The minimum ventilation rate depends upon the type of electrical protection within the machinery room Where the installation is protected according to the mechanical ventilation rate should be equivalent to at least 10-room volume changes per hour

Eg Minimum ventilation fan flow rate for extraction Vmin

Vmin = 0004 x m LFL

Where

Vmin = minimum volume flow rate of extract fan m3 s

m = largest mass of refrigerant within any single circuit of any refrigerating system kg

(lb)

LFL = Lower Flammability Limit of refrigerant kgm3

Vmin = = 0004 x 22kg 0038kgm3 = 232m3s

Suggested Ventilation Fan should be more than 232 m3s flow rate for

Ener-Save Hydrocarbon Air Cooled Screw Chiller

ldquoIn all cases a refrigerant detector should be linked into the initiation of mechanical ventilation The location of the sampling point should be at low level (where heavier than air refrigerants are used) The ventilation must either be running continuously or use a refrigerant detector starting device set at 25 of the Lower Flammability Level (LFL) Lower ventilation rates can be initiated upon detection of lower refrigerant concentrationsrdquo ldquoThe inlet of the extract ventilation should be located at floor level and ducted to a safe location Discharge points for vented air or openings for fresh air shall be positioned so as to avoid discharged air being drawn back in the building such as ventilation system inlets opening windows and doors and sources of ignition The rejection of flammable materials shall not present a hazard externally such as entering a building or being in contact with sources of ignition The mechanical ventilation system should be designed to maintain the room at a lower pressure than surrounding areas so that there will be no escape of leaked refrigerants to other areas Fans for mechanical ventilation should use motors of non-sparking type and the fan blades and cowling should be designed so as to avoid sparking as a result of metal-to-metal contact Mechanical ventilation equipment should be installed with independent emergency control located outside of and near to the machinery roomrdquo

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 16 Switch to Green Save the Environment Save The EARTH

Authorized and Qualified Installer

Product Manufacturer and HC Trainer

ENER-SAVE SDN BHD

(661220-A) Tel +607-557 2669 Fax +607-558 2669

Todays Savings Tomorrows Sustainable Living Switch To Green Save The Environment Save The Earth We Specialise in Natural Green Refrigerant - Hydrocarbon

ENER-SAVE SDN BHD Hydrocarbon Air Cooled Screw Chiller

P a g e | 16 Switch to Green Save the Environment Save The EARTH

Authorized and Qualified Installer

Product Manufacturer and HC Trainer

ENER-SAVE SDN BHD

(661220-A) Tel +607-557 2669 Fax +607-558 2669

Todays Savings Tomorrows Sustainable Living Switch To Green Save The Environment Save The Earth We Specialise in Natural Green Refrigerant - Hydrocarbon