DUO - technopartner.rs OBJEKTI... · DUO is a special unit equipped with two water circuits, one dedicated to winter space heating and the other one dedicated to the hot sanitary

Outdoor temperatures up to -20°C HSW production up to 80°C Up to class A Scroll compressors Axial fans Plates and finned condensing coils Indoor and outdoor installation Refrigerant R134a Refrigerant R410a

HEATING CAPACITY:from 6,8 kW up to 76,8 kW (application with radiant panels - TAE = 7°C; TWI/WO = 30°C/35°C)from 6,2 kW up to 73,5 kW (application with Fancoils - TAE = 7°C; TWI/WO = 40°C/45°C)

Air-water heat pumps at high temperature with double cascade cycle for heating and domestic hot water.

TECHNICAL BULLETINCod. BT-DUO-REV01-0217-UK

DUO

RESIDENTIAL & LIGHT COMMERCIALHEATINGHEATING

ii

DUOHEATINGHEATING

DESCRIPTION

Air-water heat pumps at high temperature with double cascade cycle with two scroll compressors running with combined refrigerants (R410a e R134a) to production:

■ hot water for winter space heating;■ hot sanitary water (h.s.w.).

The innovative technical solutions applied to DUO allow to overcome the operating limits of a traditional heat pump as well as an up-to-date one:

■ constant heating capacities even with a decrease of the outdoor temperature (-20°C;+20°C) in winter;

■ many designing options (up to 80°C) that allow:- hot water production at very high temperature on condenser to serve both civilian and process hot utilities;- hot water production at very high temperature on recuperator, to serve sanitary utilities;

■ high reliability and durability (reduction mechanical stress thanks to compression ratios lower than traditional heat pumps);

■ high energy efficiency (COP >4,2) and low emissions CO₂<50%).

HIGHLIGHTS

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DUOHEATINGHEATING

HIGHLIGHTS

CASCADE CYCLE

Electronic expansion valve

Te = evaporating temp. 23°C

Inverter scroll compressor


Inverter fans

Hot sanitary water up to 80°C

Hot sanitary water production (middle seasons)

Outdoor air temp. up to 18°C

P

H

Electronic expansion valve

Tc = condensing temp. 85°C

Te = evaporating temp. -25°C

Hot water up to 80°C



Inverter fans

Hot sanitary water up to 80°C

Winter space heating and hot sanitary water production

Outdoor air temp. up to -20°C

P

H

Tc

Te

Te

iv

DUOHEATINGHEATING

HIGHLIGHTS

REINTEGRO ACQUA DI RETE / AUTOMATIC WATER FILLING

OPERATING MODES

DUO is a special unit equipped with two water circuits, one dedicated to winter space heating and the other one dedicated to the hot sanitary water production. It stands out for its innovative refrigerant circuit and advanced control system, which allow to satisfy all conditioning and sanitary needs of the plants in every season.


WINTER SPACE HEATING AND HOT SANITARY WATER PRODUCTION

During winter DUO provides hot water for heating or sanitary purposes (with higher priority for sanitary uses).

WINTER


WINTER SPACE HEATING

During winter DUO provides hot water for heating purposes.

WINTER

HOT SANITARY WATER PRODUCTION

During middle seasons DUO provides hot sanitary water.

MIDDLE SEASONS

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DUOHEATINGHEATING

HIGHLIGHTS

CONSTANT HEATING CAPACITY DURING WINTER SPACE HEATING

The heating capacity of the DUO unit remains constant although with decreasing of the outdoor air temperature, ensuring a reli-able and efficient operation with great advantages in terms of energy consumption. The DUO unit is able to provide the heating capacity required by the plant even with outdoor temperature up to -20°C, while traditional heat pumps use to have problems working with outdoor temperature next to 0°C.

Critical operatingconditions

Outdoor temp. [°C] (dry bulb)

-20 -15 -10 -5 0 5 10 15 20

Hea

ting

capa

city

[kW

]

DUO 112 Z SW

Traditional heat pump

Duo vs traditional heat pump

HIGH ENERGY EFFICIENCY

The double-compression cycle can operate at the point of optimal operation of the compressor, or at the point of maximum isentropic efficiency regardless of the ambient air temperature, in contrast to the heat pump where the ratio isentropic compression increases with the outside temperature decreasing, making worse isentropic efficiency.

ISENTROPIC EFFICIENCY

Traditional heat pump

DUO

Max efficiency

Low efficiency

Compression ratio

ISEN

TRO

PIC

EFF

ICIE

NC

Y

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DUOHEATINGHEATING

HIGHLIGHTS

INVERTER Heat pumpTemperature set up

Heat pump

INVERTER

1°C

2°C

FULL INVERTER TECHNOLOGY

Very high energy efficiency and reliability:

• mechanicalstressreductionby30%;• startupcurrentreductionby50%;• compressionratioreductionby50%.

The inverter scroll compressors of latest generation allow to reach extreme working conditions, ensuring the highest efficiency perfor-mances.They also guarantee a very low-noise impact.FULL INVERTER circulators allow to optimize the start-up of the unit with very low outdoor temperature in heat pump operating mode.The modulation of the water flow rate allows to control the condens-ing temperature, optimizing defrost cycles; it allows also to acceler-ate the achievement of set point temperature and to facilitate the start-up after prolonged inactivity or with low temperature of the tank.The inverter circulators are equipped with brushless motors, so it is possible to obtain better performances than pumps equipped with on/off motors, but ensuring very high energy saving.

HIGH DURABILITY

In standard conditions, the normal life cycle for compressors is usually about 40000 h.By using inverter technology, DUO increases the compressors’ life cycle, which are subjected to less mechanical stress and less start and stop stress.

• Operatinghours>60000h;*• Lifecycleincreaseby50%.

* assignedinreportsbysupplierswhichareleadersinthepro-duction of latest generation scroll compressors.

Ope

rativ

e ho

urs

80000

60000

20000

0

40000

Traditional compressors DUO Compressors

60000 h

40000 h

Compressors life cycle

Comparison of CO₂ emissions into the atmosphere (DUO)

REDUCED EMISSIONS

The DUO solution provides a lower impact to the environment compared to the best fuel technology: given that today the cli-mate is more with combustion systems, ideally thinking of re-placing all combustion installations with multi-function units DUO, you drastically reduce emissions of greenhouse gases.In compliance with the SCHERPHA (research for sustainable heat and energy) within 2030 the annual carbon emissions produced by a traditional heating system of the EU could decrease from 8 to 1 CO₂ tons thanking to the use of multifunctional technology.

-50%

Boiler + chiller unit DUO System0

40

20

30

10

50

60

70

80

90

100

AN

NU

AL

EMIS

SIO

NS

OF

CO₂ K

G %

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DUOHEATINGHEATING

HIGHLIGHTS

DIGITAL DEFROST TECHNOLOGY

In the electronic control system has been implemented a new in-novative digital defrosting technology able to reduce to zero the production of negative energy towards the plant during defrosting, when a heat pump normally uses to switch the cycle in chiller mode producing cold water.DIGITAL DEFROST is a digital self-adaptive defrosting system able to prevent the production of frost that works only in case of effective presence of frost on the coils’ fins.In particular, the system operates by modulating the compressors’ inverter frequency according to the outdoor temperature, raising the evaporating temperature above the defrost limit. The unit is subjected to a significantly reduced number of defrost cycles. The reduction of mechanical stress, due to the cycle inversions dur-ing heating mode, implies an increase in the life cycle of the unit, as well as improving the comfort felt by the user.

Trend of compressor frequency (Frequency)

15

-5

10 2 3 4 5 6 7 8 9 10 11 12

DEFROST limit

Tev [°C]

40%

100%

Frequency modulation [min]

-30°C-25°C

-20°C

-8°C

-2°C

7°CEvaporatingtemperature

Outdoor temp.

-20°C 7°C

Optimal working area

Probable frost presence area

Ice presence area

Possible working areas

ADJUSTABLE SET POINTS FOR ANY URER

The advanced electronic of DUO allows you to manage both refrigeration cycles in an inter-active way through a full inverter technology applied to compressors, electronic expansion valves and circulators. It also allows you to set different and completely independent set points for HSW and heating purposes. Finally it easily handles the digital defrost system. This provides high adaptability to any type of plant or installation need.

DYNAMIC SET POINT

The DYNAMIC SET POINT allows to optimize the heat load provided to the users during the entire period of operation of the unit.Depending on the heat load , the control set point fits always guaranteeing an optimal tem-perature of the feed water to the terminals of the plant, providing only the necessary ther-mal energy as a function of the outside air temperature.

In fact if the outdoor temperature increases, through the function DSP it is possible:

• toincreasethesetpointincaseitisnecessarytocontainpowerconsumptionsanditisneeded to ensure a difference between the indoor and outdoor temperature such avoid lack of comfort due to the excessive changes of temperature;

• toreducethesetpointincaseitisrequiredtocompensateinsuchawaytheexcessofthermal load; of course this is a function to be used with precaution because it generates higher power consumption.

set pointacs

set pointhsw

set pointutenze

invernaliset point

winter heating

65°CCOP = 2,9

35°CCOP = 4,3

0°C 20°C 40°C 60°C 80°C

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HIGHLIGHTS

HIGH WATER OUT TEMPERATURE

The bacterium Legionella has the maximum growth with a water temperature between 25°C and 42°C.DUO allows to reach water temperatures up to 80°C: this temperature is also high enough for the instantaneous elimination of the dangerous bacterium.The system is also capable of triggering an anti-legionella cycle individually as needed.

HEATING CAPACITY: DUO 112 Z SM VS TRADITIONAL HEAT PUMP

The heating capacity of single stage heat pumps has significant decay, in particular with extreme outdoor temperature. In fact the operating range of the units is very limited already with outdoor temperature at 0°C. Comparing the different units, at the same operating conditions, is possible to observe the superiority of DUO that provides much higher heating capacity.The innovation of DUO avoids the decreasing of heating capacity thanks to the cycle with compressor at R410a (outdoor unit) that allows, modulating the power, to the cycle with compressor at R134a (indoor unit) to evaporate at the best conditions in constant way, ensuring hot water production up to 80°C.

(1) DUO 112 Z SW: Constant heating capacity with decreasing of outdoor temperature with hot water production at T=35°C.(2) DUO 112 Z SW: Constant heating capacity with decreasing of outdoor temperature with hot water production at T=45°C.(3) Traditional heat pump: Heating capacity decreases with decreasing of outdoor temperature with hot water production at T=35°C.(4) Traditional heat pump: Heating capacity decreases with decreasing of outdoor temperature with hot water production at T=45°C.

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DUOHEATINGHEATING

VERSIONE SPLITVERSIONE SPLIT

HIGHLIGHTS

COP: DUO 112 Z SW VS TRADITIONAL HEAT PUMP

The COP of single stage heat pumps decrease with decreasing of outdoor temperature, reaching very low values, starting from 0°C.In DUO COP decreases less quickly and allows the correct operating mode, also with outdoor temperature up to -20°C, ensuring the hot water production up to 80°C.

(1) DUO 112 Z SW: COP in function of outdoor temperature with hot water production at T=35°C.(2) DUO 112 Z SW: COP in function of outdoor temperature with hot water production at T=45°C.(3) Traditional heat pump: COP in function of outdoor temperature with hot water production at T=35°C.(4) Traditional heat pump: COP in function of outdoor temperature with hot water production at T=45°C.

The wide range of versions available for DUO allows to grasp all the opportunities coming from the market, responding better to the different installation requirements.

RANGE AND VERSIONS

Not reversible heat pump for space heating

and HSW production

Not reversible heat pump for space

heating

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DUOHEATINGHEATING

Index

Product coding

Example of typical identification code: DUO 145 Z SR

DUO products coding is straightforward and follows the same coding used by Thermocold for other units:

1

DUO

45 Z SR

Basic versionSR: not reversible heat pump for heating, split version.SW: not reversible heat pump for heating and HSW Production, split version.

Compressor typeIt indicates the type of compressor installed on the machine, on DUO hermetic scroll compressors are used; they are very reliable and have reduced sound emissions.

Heating capacityIt is the field which indicates the nominal heating capacity of the units expressed in kW (conditions Tae=7°C; T (production hot water)=40°C/45°C).

Number of refrigerant circuitIt is the field which indicates the number of refrigerating circuits with which each cycle is realized; DUO has an innovative refrigerating circuit whose number of components for each function has been minimized.

Product coding 1Technical features 2Technical data 4Performance tables 9Operating limits 10Inverter pumps flow rate pressure characteristics 11Correction tables 14Plant scheme with accessories 15General arrangement drawings and weights 17

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DUOHEATINGHEATING

SCROLL COMPRESSORS

The units have hermetic scroll compressors, characterized by high performances, reduced vibrations and little sound emissions.During operation it’s developed a more uniform compression and pulsation, there are no alternative movements of pistons accompanied by masses or vibration forces to benefit the low noise making unnecessary both pulsation dampeners and the isolation of compressor with headphones or in isolated compartments.High COP values are guaranteed by high volumetric efficiency. During operation The compressor maintains a supply of power output with limited variations, it guaranteed continuous operation of the compressor, with limited number of stat and stops than the other type of com-pressors.The inverter technology, applied to last generation compressors, allows to control and to adapt the speed of the compressor in relation to the set-point. Reached the required temperature, it is kept constant modulating the power delivered to a minimum, ensuring much higher energy saving.For this reason, it is possible to save energy, faster in achieving the desired set-point and a better and more protracted control of relative humidity in the room.The temperature of the gas flow is significantly lower thanks to the limited internal heat of the gas aspirated it allows you to work with pres-sures condensation reduced with more comfort and much long life cycle of the compressor.

The electric inverter motor, cooled by the refrigerant inlet, it is equipped with internal thermal protection.

CASING

Painted galvanized steel cabinet to the machine that gives a high resistance to corrosion. The front panel is easily removable for access to all internal components and to allow maintenance operations, but with extreme ease.

FINNED BLOCK EXCHANGER

The DUO units are equipped with heat exchanger coil with inner grooved copper tubes and aluminum . that allows for greater heat exchange capacity in the same area.

CONDENSER/EVAPORATOR FANS SECTION

The units are equipped with condensing section of axial fans, statically and dynamically, driven by electric motors with continuous speed vari-ation and with a closed internal thermal protection.The continuously variable speed can significantly reduce the power drawn by the fans, resulting more energy savings.When the unit will have to dispose of an air flow less than the maximum (for example in heat pump operating mode) the fan reduces its speed of rotation.

PLATE HEAT EXCHANGERS

Heat exchangers, water direct expansion type brazed plate in AISI 316, externally insulated with anti-cell closed with antifreeze heater switch and differential pressure. The double thermodynamic cycle is developed through the gas – gas exchanger. This constructive solution, developed by Thermocold, allows to obtain much high performances through an optimized heat change for refrigerants R134a and R410a. It allows to split the compression and it allow to obtain constant heating capacities and produces hot water up to 80°C.

REFRIGERANT CIRCUIT

The refrigeration circuit of both units is made entirely of copper and includes:

• electronicexpansionvalve;• highandlowpressureshut-off.valvesontheline;• shut-offvalveonliquidline;• refrigerantcharge;• liquidreceiver;• fourwayvalveforreversingthecycle;• safetyvalvelowpressure;• liquidlinesolenoidvalve;• pressuretransducers;• filterdrier;• plateevaporatorwithhighefficiency;• connectionvalves.

ELECTRIC CONTROL PANEL AND POWER

Electric board made in accordance with standards CEI 44-5/IEC 204-2 including:

• contactorsforcompressorandfans;• fusesforthecompressor;

Technical features

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DUOHEATINGHEATING

• fusesforthefanmotors;• fusesforcontrolcircuit;• invertercompressor;• electricalfans(outdoorunit);• continuouscondensingcontrol.

The control interface provides:

• monitoringofanalogicalstatusvariablesofthesystem;• monitoringofthestatusoftheactuators;• readingalarmcode;• activationofthemachineinthedesiredcycle;• changingofoperatingparametersofthemachine(withvariouslevelsdependingonthepasswordentered);• changingofdefrostingtiming(onlyforaircooledheatpumps);• changingofactivationlimitforantifreezeheater;• dynamicsetpointinfunctionofoutdoortemperature.

WATER CIRCUIT (only indoor unit)

• airconditioningsysteminverterwaterpump;• hswinverterpump(onlySWversions);• automaticreliefvalve;• hswandairconditioningsystemexpansiontank.

ACCESSORIES ON REQUEST

• Snowcap(S).• Completeantiintrusiongrilles(M).• Remotecontroldisplay(S).• Automaticwaterfilling(S).• Waterstrainer(S).• Flowswitch(S).• OilseparatorforSPLITversionwithrefrigerantconnectiondistanceover12meters(M).• Rubberantivibrationmounts(S).

NOTA: (S) Loose; (M) Mounted.

Technical features

REFERENCE STANDARD

THE PRESSURE EQUIPMENT DIRECTIVE (97/23/EC)UNI EN ISO 3744 ACOUSTIC REGULATIONUNI-EN-ISO 9001:2008: QUALITY MANAGEMENT SYSTEMS LOW VOLTAGE DIRECTIVE (LVD) 2006/95/EC.MACHINERY DIRECTIVE 2006/42/ECDIRECTIVE FOR ELECTROMAGNETIC COMPATIBILITY 2004/108/CECEI-EN 60204-1 DIRECTIVE (CEI44-5; CEI EN 62061) MACHINERY SAFETY – ELECTRIC MACHINERY – EQUIPMENTSERP DIRECTIVE (ENERGY-RELATED-PRODUCTS ECODESIGN 2009/125/CE)UNI EN 14511-1-2-3-4 TESTING CONDITIONS.

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DUOHEATINGHEATING

CONDITIONSVers.

MODELS

TAE TWC TWS TWE 112 Z 125 Z 145 Z 170 Z

FANCOILS


HEATING CAPACITY 7/6,2 40/45

SRSW

kW 12,68 25,58 45,86 73,54

COMPRESSOR POWER INPUT 7/6,2 40/45 kW 3,25 6,53 11,75 18,85

TOTAL POWER INPUT 7/6,2 40/45 kW 3,73 7,11 13,10 20,09

COP 7/6,2 40/45 3,40 3,60 3,50 3,66

HEAT EXCHANGER WATER FLOW RATE 7/6,2 40/45 m³/h 2,2 4,4 7,9 12,6

HEAT EXCHANGER WATER PRESSURE DROP 7/6,2 40/45 kPa 6,1 8,2 7,1 8,2

WINTER SPACE HEATING + HSW

HEATING CAPACITY HSW 7/6,2 40/45

SW

kW 12,68 25,58 45,86 73,54



COP 7/6,2 40/45 3,40 3,60 3,50 3,66



MIDDLE SEASONS HSW


SW

kW 12,68 25,58 45,86 73,54



COP 15/10,8 40/45 3,92 3,84 4,01 4,15



TAE = Outdoor air temperature [°C] (dry bulb/wet bulb)TWC = Condenser water temperature [°C] (winter space heating)TWS = Recovery water temperature [°C] (h.s.w.)

GENERAL TECHNICAL DATA

Technical data

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DUOHEATINGHEATING

CONDITIONSVers.

MODELS


RADIANT PANELS



SRSW

kW 13,55 26,68 47,85 76,84



COP 7/6,2 30/35 4,10 4,20 4,20 4,30





SW

kW 12,68 25,58 45,86 73,54



COP 7/6,2 40/45 3,40 3,60 3,50 3,66



MIDDLE SEASONS HSW


SW

kW 12,68 25,58 45,86 73,54



COP 15/10,8 40/45 3,92 3,84 4,01 4,15




Technical data


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DUOHEATINGHEATING

CONDITIONSVers.

MODELS


MEDIUM TEMPERATURE RADIATORS



SRSW

kW 11,98 23,96 43,15 69,21



COP 7/6,2 55/65 2,80 2,70 2,80 2,89





SW

kW 12,68 25,58 45,86 73,54



COP 7/6,2 40/45 3,40 3,60 3,50 3,66



MIDDLE SEASONS HSW


SW

kW 12,68 25,58 45,86 73,54



COP 15/10,8 40/45 3,92 3,84 4,01 4,15



HIGH TEMPERATURE RADIATORS



SRSW

kW 10,58 21,17 38,03 60,72



COP 7/6,2 70/80 2,10 2,12 2,25 2,32





SW

kW 12,68 25,58 45,86 73,54



COP 7/6,2 40/45 3,40 3,60 3,50 3,66



MIDDLE SEASONS HSW


SW

kW 12,68 25,58 45,86 73,54



COP 15/10,8 40/45 3,92 3,84 4,01 4,15




Technical data


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DUOHEATINGHEATING

CONDITIONSVers.

MODELS


COMPRESSORS

COMPRESSORS NUMBER

SRSW

2 2 2 2

REFRIGERANT CIRCUITS 1 1 1 1

REGULATION STEPLESS INVERTER REGULATION

REFRIGERANT CHARGE kg 1,90 3,70 6,30 3,20

OIL CHARGE l 1,80 1,80 1,80 1,80

FANS

FANS NUMBER

SRSW

2 1 2 2

AIR FLOW m3/h 15.000 17.000 34.000 34.000

TOTAL POWER INPUT kW 0,86 1,23 2,46 2,46

TOTAL POWER INPUT IN HEAT PUMP MODE kW 0,43 0,61 1,22 1,22

PHSW FLOW RATE

ISTANTANEOUS HSW FLOW RATE - DELTA T 65°C: Tin 15°C - Tout 80°C 7/6,2

SW

l/min 5,05 10,11 18,17 29,01

ISTANTANEOUS HSW FLOW RATE - DELTA T 45°C Tin 15°C - Tout 65°C 7/6,2 l/min 5,17 10,33 18,61 29,85

ISTANTANEOUS HSW FLOW RATE - DELTA T 30°C Tin 15°C - Tout 45°C 7/6,2 l/min 5,77 11,64 20,87 35,14

TANKS (accessories)

MINIMUM CLIMATIZATION USERS WATER TANK CAPACITY l 80,00 150,00 250,00 600,00

MINIMUM SANITARY USERS WATER TANK CAPACITY l 80,00 150,00 250,00 600,00

TIME FOR SANITARY WATER TANK REGENERATION FROM 30°C TO 80°C 7/6,2

SW

min 26 25 23 34

TIME FOR SANITARY WATER TANK REGENERATION FROM 30°C TO 65°C 7/6,2 min 18 17 16 23

TIME FOR SANITARY WATER TANK REGENERATION FROM 30°C TO 45°C 7/6,2 min 7 6 6 9

ACOUSTIC DATA

INDOOR UNIT

SOUND PRESSURE LEVEL (1) SRSW

dB (A) 51 48 55 53

SOUND POWER LEVEL dB (A) 73 70 77 82

OUTDOOR UNIT

SOUND PRESSURE LEVEL (1) SRSW

dB (A) 57 62 63 56

SOUND POWER LEVEL dB (A) 79 84 85 85

TAE = Outdoor air temperature [°C] (dry bulb/wet bulb)TWC = Condenser water temperature [°C] (winter space heating)TWS = Recovery water temperature [°C] (h.s.w.)(1) calculated according to ISO 3744 at 5 m from the unit


Technical data

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DUOHEATINGHEATING

Technical data

Electrical data referred to 230V / 1PH / 50HZ (112 kW) and 400V - 3PH+N-50Hz (125-145-170 kW). Maximum operating admitted conditions: 10%. Maximum phase unbalance: 3%.I.U. indoor unit.O.U. outdoor unit.(1) maximum operating admitted conditions by the compressors manufacturer.(2) data referred to the biggest compressor for units with different compressors.F.L.I. full load electrical power.F.L.A. full load operating current.L.R.A. compressor motor locked rotor current (direct starting).S.A. sum of LRA of the most powerful compressor, FLA of other compressor and fans current.E.P. electrical power.O.C. operating current.

SR version

Mod.

NOMINAL VALUESOutdoor air temperature 7°C,water condenser temperature in/out 40/45°C MAX VALUES (1) O.U. MAX VALUES (1) I.U.

Compressors (2) Fans TOTAL TOTAL TOTAL

F.L.I. F.L.A. E.P. O.C. F.L.I. F.L.A. F.L.I. F.L.A. S.A. F.L.I. F.L.A. S.A.

kW A kW A kW A kW A A kW A A

112 Z 3,3 5,7 0,5 1,0 3,7 6,6 6,2 15,3 19,6 5,6 12,4 64,0

125 Z 6,5 11,4 0,6 1,2 7,1 12,6 16,6 33,0 41,7 7,4 17,6 98,0

145 Z 11,8 20,6 1,4 2,7 13,1 23,3 21,7 44,0 55,7 13,4 28,0 145,0

170 Z 18,9 33,0 1,2 2,5 20,1 35,5 25,2 64,0 80,2 19,7 39,2 215,0

ELECTRICAL DATA - HEATING MODE

ELECTRICAL DATA - HEATING MODE AND HSW PRODUCTION

SW version

Mod.

NOMINAL VALUESOutdoor air temperature 7°C, water condenser temperature in/out 40/45°C MAX VALUES (1) O.U. MAX VALUES (1) I.U.

Compressors (2) Fans TOTAL TOTAL TOTAL

F.L.I. F.L.A. E.P. O.C. F.L.I. F.L.A. F.L.I. F.L.A. S.A. F.L.I. F.L.A. S.A.

kW A kW A kW A kW A A kW A A

112 Z 3,3 5,7 0,5 1,0 3,7 6,6 6,2 15,3 19,6 5,6 12,4 64,0

125 Z 6,5 11,4 0,6 1,2 7,1 12,6 16,6 33,0 41,7 7,4 17,6 98,0

145 Z 11,8 20,6 1,4 2,7 13,1 23,3 21,7 44,0 55,7 13,4 28,0 145,0

170 Z 18,9 33,0 1,2 2,5 20,1 35,5 25,2 64,0 80,2 19,7 39,2 215,0

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DUOHEATINGHEATING

Mod.

TWinC30 °C 40 °C 45 °C 55 °C 60 °C 70 °C

∆T ∆T ∆T ∆T ∆T ∆T

TWoutC 35 °C 45 °C 55 °C 65 °C 70 °C 80 °C

TAE Pt Pac Patot COP Pt Pac Patot COP Pt Pac Patot COP Pt Pac Patot COP Pt Pac Patot COP Pt Pac Patot COP

112 Z

-20,00/-20,27

13,55

4,39 5,03 2,69

12,68

4,64 5,29 2,40

12,68

4,84 5,48 2,31

11,98

5,01 5,66 2,12

11,52

5,06 5,70 2,02

10,58

5,15 5,79 1,83

-15,00/-15,5 4,08 4,68 2,89 4,36 4,96 2,55 4,59 5,19 2,44 4,79 5,40 2,22 4,85 5,46 2,11 4,98 5,58 1,90

-7,00/-8,08 3,70 4,24 3,19 4,02 4,56 2,78 4,29 4,83 2,63 4,53 5,07 2,37 4,61 5,15 2,24 4,77 5,31 1,99

-5,00/-5,40 3,58 4,10 3,30 3,91 4,43 2,86 4,18 4,71 2,69 4,44 4,96 2,41 4,53 5,05 2,28 4,70 5,23 2,03

0,00/-0,53 3,27 3,76 3,60 3,63 4,12 3,08 3,94 4,42 2,87 4,22 4,71 2,55 4,37 4,85 2,37 4,66 5,15 2,06

3,00/2,35 3,09 3,55 3,81 3,47 3,93 3,23 3,79 4,25 2,98 4,09 4,55 2,63 4,27 4,73 2,43 4,64 5,10 2,08

7,00/6,20 2,85 3,28 4,13 3,25 3,68 3,45 3,60 4,03 3,15 3,92 4,35 2,75 4,15 4,58 2,52 4,61 5,03 2,10

10,00/8,20 2,67 3,08 4,40 3,09 3,49 3,63 3,45 3,86 3,29 3,91 4,31 2,78 4,13 4,54 2,54 4,58 4,98 2,12

15,00/10,80 2,44 2,80 4,83 2,88 3,24 3,91 3,40 3,76 3,37 3,89 4,26 2,81 4,11 4,47 2,57 4,54 4,90 2,16

20,00/15,09 2,09 2,42 5,60 2,61 2,93 4,32 3,35 3,67 3,45 3,88 4,20 2,85 4,08 4,41 2,61 4,50 4,82 2,19

125 Z

-20,00/-20,27

26,68

8,83 9,75 2,74

25,58

9,33 10,25 2,50

25,59

9,77 10,69 2,39

23,96

10,08 11,00 2,18

23,03

10,17 11,09 2,08

21,17

10,36 11,28 1,88

-15,00/-15,5 8,18 9,04 2,95 8,76 9,63 2,66 9,25 10,12 2,53 9,63 10,50 2,28 9,75 10,62 2,17 9,99 10,86 1,95

-7,00/-8,08 7,44 8,21 3,25 8,08 8,85 2,89 8,64 9,42 2,72 9,09 9,87 2,43 9,26 10,03 2,30 9,58 10,36 2,04

-5,00/-5,40 7,19 7,94 3,36 7,85 8,60 2,97 8,44 9,19 2,78 8,92 9,67 2,48 9,10 9,85 2,34 9,45 10,20 2,08

0,00/-0,53 6,58 7,27 3,67 7,31 8,00 3,20 7,94 8,64 2,96 8,49 9,18 2,61 8,80 9,49 2,43 9,41 10,11 2,09

3,00/2,35 6,22 6,88 3,88 6,97 7,63 3,35 7,65 8,31 3,08 8,23 8,88 2,70 8,62 9,27 2,48 9,39 10,05 2,11

7,00/6,20 5,74 6,35 4,20 6,53 7,14 3,58 7,26 7,87 3,25 8,18 8,79 2,73 8,57 9,18 2,51 9,36 9,97 2,12

10,00/8,20 5,38 5,95 4,48 6,21 6,78 3,77 7,22 7,79 3,28 8,14 8,71 2,75 8,54 9,11 2,53 9,34 9,92 2,13

15,00/10,80 4,91 5,43 4,92 6,15 6,67 3,84 7,15 7,67 3,34 8,07 8,59 2,79 8,48 9,00 2,56 9,30 9,82 2,16

20,00/15,09 4,90 5,36 4,98 6,09 6,55 3,91 7,08 7,54 3,39 8,00 8,47 2,83 8,42 8,89 2,59 9,27 9,73 2,18

145 Z

-20,00/-20,27

47,85

14,77 16,61 2,88

45,86

15,91 17,76 2,58

45,94

17,34 19,19 2,39

43,15

18,09 19,94 2,16

41,45

18,26 20,10 2,06

38,03

18,59 20,44 1,86

-15,00/-15,5 14,21 15,94 3,00 15,73 17,46 2,63 16,56 18,29 2,51 17,30 19,03 2,27 17,53 19,26 2,15 17,98 19,71 1,93

-7,00/-8,08 13,37 14,92 3,21 14,52 16,07 2,85 15,51 17,06 2,69 16,34 17,89 2,41 16,64 18,19 2,28 17,24 18,79 2,02

-5,00/-5,40 12,92 14,42 3,32 14,12 15,62 2,94 15,14 16,64 2,76 16,02 17,52 2,46 16,35 17,85 2,32 16,99 18,49 2,06

0,00/-0,53 11,81 13,19 3,63 13,12 14,51 3,16 14,25 15,64 2,94 15,24 16,63 2,60 15,63 17,01 2,44 16,39 17,78 2,14

3,00/2,35 11,18 12,49 3,83 12,51 13,83 3,32 13,73 15,05 3,05 14,76 16,08 2,68 15,19 16,50 2,51 16,03 17,35 2,19

7,00/6,20 10,31 11,53 4,15 11,75 12,97 3,54 12,98 14,21 3,23 14,14 15,37 2,81 14,65 15,87 2,61 15,65 16,88 2,25

10,00/8,20 9,66 10,81 4,42 11,16 12,31 3,73 12,50 13,66 3,36 13,69 14,85 2,91 14,34 15,50 2,67 15,64 16,79 2,27

15,00/10,80 8,82 9,85 4,86 10,40 11,43 4,01 11,82 12,85 3,57 13,10 14,14 3,05 13,94 14,98 2,77 15,61 16,65 2,28

20,00/15,09 7,56 8,48 5,64 9,26 10,18 4,51 10,80 11,72 3,92 13,05 13,97 3,09 13,90 14,82 2,80 15,58 16,50 2,30

170 Z

-20,00/-20,27

76,84

24,55 26,39 2,91

73,54

26,29 28,13 2,61

73,63

28,12 29,96 2,46

69,21

29,06 30,90 2,24

66,38

29,31 31,16 2,13

60,72

29,83 31,67 1,92

-15,00/-15,5 23,51 25,24 3,04 25,26 26,99 2,72 26,65 28,38 2,59 27,77 29,50 2,35 28,13 29,86 2,22 28,85 30,58 1,99

-7,00/-8,08 21,26 22,81 3,37 23,31 24,86 2,96 24,90 26,45 2,78 26,23 27,77 2,49 26,71 28,25 2,35 27,67 29,21 2,08

-5,00/-5,40 20,75 22,25 3,45 22,64 24,14 3,05 24,32 25,82 2,85 25,72 27,22 2,54 26,24 27,74 2,39 27,27 28,77 2,11

0,00/-0,53 18,98 20,37 3,77 21,06 22,45 3,28 22,88 24,26 3,03 24,46 25,84 2,68 25,08 26,46 2,51 26,31 27,69 2,19

3,00/2,35 17,91 19,23 4,00 20,11 21,43 3,43 22,01 23,33 3,16 23,71 25,03 2,77 24,38 25,70 2,58 25,73 27,04 2,25

7,00/6,20 16,54 17,77 4,33 18,85 20,07 3,66 20,90 22,12 3,33 22,72 23,94 2,89 23,47 24,69 2,69 24,97 26,19 2,32

10,00/8,20 15,50 16,66 4,61 17,89 19,05 3,86 20,07 21,23 3,47 21,99 23,14 2,99 22,80 23,95 2,77 24,41 25,56 2,38

15,00/10,80 14,14 15,18 5,06 16,67 17,71 4,15 18,97 20,01 3,68 21,02 22,06 3,14 21,90 22,94 2,89 23,66 24,70 2,46

20,00/15,09 12,14 13,06 5,89 14,85 15,78 4,66 17,33 18,26 4,03 19,59 20,51 3,37 20,58 21,50 3,09 22,56 23,48 2,59

HEATING PERFORMANCE IN WINTER SPACE HEATING AND HSW

Pt - Heating capacity [kW]PaC - Compressor power input [kW]Patot - Total power input [kW]TAE - Outdoor air temperature [°C] (dry bulb/wet bulb)TWoutC - Hot water out temperature [°C]TWinC - Hot water in temperature [°C]COP - Coefficient of Performance

Performance tables

10

DUOHEATINGHEATING

Operating limits

Version Operating ModeTa

Air conditioningheat exchanger

HSWheat exchanger

Tw out Tw out

Min Max Min Max Min Max

SR - SW Space heating -20 28 30 80 - -

SW Space heating and HSW production -20 28 30 80 30 80

SW HSW production -20 45 - - 30 80

Ta = Outdoor air temperature (°C)Tw out = Leaving water temperature from the heat exchanger (°C)

25

35

45

55

65

75

85

-20 -15 -10 -5 0 5 10 15 20 25 30

Leav

ing

hot w

ater

tem

per

atur

e (°

C)

Outdoor air temperature (°C)

80

Winter space heating and hsw production operating mode

11

DUOHEATINGHEATING

Inverter pumps flow rate pressure characteristics

AIR CONDITIONING SANITARY UTILITIES

The standard configuration of DUO is composed with inverter pumps. Here are shown the graphs to estimate the total prevalence in function of flow rate. It should be noted that the use of variable speed pumps is not intended to create plants with variable flow rate. In that case it should provide a secondary circuit, after the air condi-tioning tank, to change the flow rate of utilities of the plant (as you can see in the scheme).

BASIC VERSION MODELSSR - SW 112

The selected pumps, for which are showed the trends of prevalence in function of flow rate, ensure static prevalence until to tank of sani-tary utilities.

BASIC VERSION MODELSSW 112

AIR CONDITIONING


SANITARY UTILITIES


0

1

2

3

4

5

6

7

8

9

0 1 2 3 4 5 6 7 8 9

Hea

d p

ress

ure

(m H

2O)

Q (m 3/h)

Max Frequency

0

2

4

6

8

10

12

14

0 1 2 3 4 5 6 7 8 9 10 11 12

Hea

d p

ress

ure

(m H

2O)

Q (m 3/h)

Max Frequency

12

DUOHEATINGHEATING

AIR CONDITIONING SANITARY UTILITIES

The trend of prevalence of inverter pump to manage great flow rates is represented with different curves, according the different percen-tual speeds of the pump. In this case, to manage a flow rate about 7,5 m3/h the pump ensures a total prevalence around 19 m and the speed is around 90% of the maximum.



AIR CONDITIONING


SANITARY UTILITIES


0

5

10

15

20

25

30

35

40

45

50

0 1 2 3 4 5 6 7 8 9 10 11 12

Hea

d p

ress

ure

(m. H

2O)

Q (m 3/h)

60%

70%

80%

100%

90%

Min. Frequency

0

5

10

15

20

25

30

35

40

45

50

55

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

Hea

d p

ress

ure

(m.H

2O)

Q (m 3/h)

60%

70%

80%

100%

90%

Min. Frequency

Inverter pumps flow rate pressure characteristics

13

DUOHEATINGHEATING

Refrigerant pipings length

In the split versions of DUO the heating or cooling capacity is in function of the distance between indoor and outdoor units. In particular the heating or cooling capacity , according to the trend showed in the graph, decreases with increasing of the length of refrigerant pipings. In the graph it is possible to calculate the percentual decreasing (than nominal values).

92

93

94

95

96

97

98

99

100

5 7 9 11 13 15 17 19 21 23 25

Cap

acit

y [%

]

Outdoor - indoor distance [m]

14

DUOHEATINGHEATING

Correction tables

ETHYLENIC GLYCOL CORRECTION TABLE FOR PACKAGED VERSIONS

% Ethilene glicol weight 5% 10% 15% 20% 25% 30% 35% 40%Freezing temperature °C -2 -3,9 -6,5 -8,9 -11,8 -15,6 -19 -23,4

Suggested security limit °C 3 1 -1 -4 -6 -10 -14 -19

Cooling capacity coefficient - 0,995 0,99 0,985 0,981 0,977 0,974 0,971 0,968

Power input coefficient - 0,997 0,993 0,99 0,988 0,986 0,984 0,982 0,981

Flow rate coefficient - 1,003 1,01 1,02 1,033 1,05 1,072 1,095 1,124

Pressur dropo coefficient - 1,029 1,06 1,09 1,118 1,149 1,182 1,211 1,243

In order to calculate performance with glycoled solutions multiply main sizes by respective coefficients.

GLICOLE PERCENTAGE DEPENDING ON FREEZING TEMPERATURE FOR PACKAGED VERSIONS

% glycol according to the freezing temperatureFreezing temperature 0°C -5°C -10°C -15°C -20°C -25°C

% Ethilene glycol 5% 12% 20% 28% 35% 40%

SCALING CORRECTION TABLE FOR PACKAGED VERSIONS

mq °C/W Correction coefficient of cooling capacity Correction coefficient of power input0,44 1 1

0,88 0,97 0,99

1,76 0,94 0,98

In order to calculate performance with glycoled solutions multiply main sizes by respective coefficients.

15

DUOHEATINGHEATING

In the following water system is not included the use of booster pumps after the tank.M

UN

ITA'E

STE

RN

AU

NITA'

INTE

RN

A

T

T

T

T

RE

C

EW

R

IND

OO

RU

NIT

OU

TDO

OR

UN

IT

DEH

UM

IDIFIER

DE

UM

UD

IFICA

TOR

E

T

P1 PRIM

ARY PU

MP

P2 SO

LAR TH

ERMA

L PUM

PSC

D

RAIN

AG

ESF

VENT VA

LVESV

SAFETY VA

LVEG

R FILLIN

G G

ROU

PF

STEEL MESH

STRAIN

ERR

SHU

TT OFF VA

LVE

M

3 WAY M

IXIN

G VA

LVET

TEMPERATU

RE PROBE

EWR

EVAPO

RATOR/CO

ND

ENSER

REC

RECOVERY

SR SA

NITA

RY WATER TA

NK

SU

CLIM

ATIZATION

WATER TA

NK

ET EX

PAN

SION

VESSEL

Plant scheme with accessories

16

DUOHEATINGHEATING

The following water system involves the use of booster pumps after the tank and it allows to realize a variable flow rate plant.

Plant scheme with accessories

T

M

UN

ITA'E

STE

RN

AU

NITA'

INTE

RN

A

T

T

T

M

T

T

T

RE

C

EW

R

IND

OO

RU

NIT

OU

TDO

OR

UN

IT

DE

HU

MID

IFIERD

EU

MU

DIFIC

ATO

RE

P1 PRIM

ARY PU

MP

P2 SECO

ND

ARY PU

MP

P3 REC

IRCU

LATION

PUM

PP4

SOLA

R THERM

AL PU

MP

SC

DRA

INA

GE

SF VEN

T VALVE

SV SA

FETY VALVE

GR

FILLING

GRO

UP

F STEEL M

ESH STRA

INER

VR C

HEC

K VALVE

R SH

UTT O

FF VALVE

M

3 WAY M

IXIN

G VA

LVET

TEMPERATU

RE PROBE

EWR

EVAPO

RATOR/CO

ND

ENSER

REC

RECOVERY

SR A

CS SA

NITA

RY WATER TA

NK

SU

CLIM

ATIZATION

WATER TA

NK

ET EX

PAN

SION

VESSEL

17

DUOHEATINGHEATING

General arrangement drawings and weights

SPLIT VERSION - INDOOR UNITS

8

56

2

1

4

3

753

43.5

43.5

519

51.5

9

52.5649

606

1340

7

112 Z ÷ 125 Z

➀ Water inlet for air conditioning➁ Water outlet for air conditioning➂ Inlettosanitarycircuit*➃ Outlettosanitarycircuit*➄ Liquid line

➅ Gas line➆ Equalizer line➇ Power supply➈ Holes for antivibration absorbers Ø 8* onlyforSW

Model 112 Z 125 ZSR kg 200 270SW kg 220 300

18

DUOHEATINGHEATING

General arrangement drawings and weights23

704

23

1301240130

750

9

8

2

1

1600

1500

3

65

4

7

SPLIT VERSION - INDOOR UNITS

145 Z ÷ 170 Z

➀ Water inlet for air conditioning➁ Water outlet for air conditioning➂ Inlettosanitarycircuit*➃ Outlettosanitarycircuit*➄ Liquid line

➅ Gas line➆ Equalizer line➇ Power supply➈ Holes for antivibration absorbers Ø 8* onlyforSW


19

DUOHEATINGHEATING


SPLIT VERSION - OUTDOOR UNITS

300

1550 590

510

300

300

1595

1635

40940300 3002 1

3

4

112 Z

➀ Gas line➁ Liquid line➂ Equalizer line➃ Holes for antivibration absorbers

Model 112 ZSR kg 370SW kg 370

20

DUOHEATINGHEATING

Disegni dimensionali e pesi


1990

500 500

500

1009

1100

407

876

995

23

1

1100

1309

4

125 Z



Model 125 ZSR kg 430SW kg 430

21

DUOHEATINGHEATING

Disegni dimensionali e pesi




2198

2421

2090

1100

1000

500

500

500

400

1028 1056

876

23

1

4


145 Z - 170Z

22

DUOHEATINGHEATING

VERSION CONNECTION 112 Z 125 Z 145 Z 170 Z

SR AIR CONDITIONING 1"½ 1"½ 2"½ 2"½

SWAIR CONDITIONING 1”½ 1”½ 2”½ 2”½

HSW 1”½ 1”½ 2”½ 2”½


WATER CONNECTIONS

VERSION CONNECTIONU.I./U.E.

112 Z 125 Z 145 Z 170 Z

SRDELIVERY 12 12 22 28

LIQUID 10 12 16 22

SWDELIVERY 12 12 22 28

LIQUID 10 12 16 22

REFRIGERANT CONNECTIONS - SPLIT VERSIONS

The values in the above table are expressed in millimeters.

CONNECTIONS SCHEME

1

2

LINEA DI ASPIRAZIONE SUCTION LINE

LINEA DEL LIQUIDOLIQUID LINE

3 LINEA DI EQUALIZZAZIONEEQUALIZATION LINE

1

23

SCHEMA CONNESSIONE DUO VERSIONI SM - SH

SIFONI SOLO PER LA LINEA DI ASPIRAZIONE

1

2

LINEA DI MANDATA DISCHARGE LINE

LINEA DEL LIQUIDOLIQUID LINE

1

2

SCHEMA CONNESSIONE DUO VERSIONI SW - SR

SIFONI SOLO PER LA LINEA DI MANDATASIPHON ONLY FOR DISCHARGE LINESIPHON ONLY FOR SUCTION LINE

VERSIONS SW/SR

23

DUOHEATINGHEATING


LIFTING SCHEMES

112 Z ÷ 125 Z

145 Z ÷ 170 Z

INDOOR UNITS

24

DUOHEATINGHEATING

112 Z

125 Z


LIFTING SCHEMES OUTDOOR UNITS

25

DUOHEATINGHEATING

145 Z ÷ 170 Z


LIFTING SCHEMES OUTDOOR UNITS

26

DUOHEATINGHEATING

NOTETechnical data and dimensions are not binding. Thermocold Costruzioni S.r.l. reserves the right to make necessary changes without notice.

Cod. BT-DUO-REV02-0217-UK

DUO

RESIDENTIAL & LIGHT COMMERCIALHEATINGHEATING

Documents

DUO - technopartner.rs OBJEKTI... · DUO is a special unit equipped with two water circuits, one dedicated to winter space heating and the other one dedicated to the hot sanitary