EC TwinBox Fan Range

We Bring Air to LifeProduct Range > EC TwinBox Fans

CI/SfB(57)

February 2011

Volume flow up to 1.7m3/s

Static pressures up to 870 Pa

Incorporating energy efficient EC motors

4 product models available

Integrated controller

Optional plug and play sensors

Duty, standby ventilation

1

Fläkt Woods is a globalleader in air management.We specialise in the designand manufacture of precision technology to deliver complete, integratedsolutions. In everything wedo, energy efficiency and environmental responsibility are always our major priorities. And our collective experience is unrivalled.

Fläkt Woods systems summary

The comprehensive

Fläkt Woods range

serves a very wide

spectrum of applications:

across Domestic,

Commercial, Industrial

and Public sectors.

New

Fläkt Woods now offer a new

Box Fan range which incorporates

energy conscious EC motors.

With higher fan efficiencies and lower

energy costs. Fläkt Woods has

developed a new product range to

deliver performance in line with current

building regulations and conform to

ever changing circumstances, by

providing ventilation on demand.

Our knowledge and reputation hasbeen built up through a century ofengineering innovation and development.This reflects an impressive track recordthat equips all our customers with aspecial confidence. An assurance that,whatever the need or application,Fläkt Woods can deliver the product,the performance and the service that is required.

Our expertise is not confined to originalmanufacture and supply. It is availableto you from the selection process onwards, and continues well beyond installation, throughout each system’soperating life.

When you first select and install one ormore of our systems, our partnershipwith you is only just beginning. Because you’ll always be able to call onFläkt Woods experience. We’re at your service.

Fläkt Woods experience – at your service

Fläkt Woods ventilationsolutions and packages include:

Axial Fans

Box Fans

Centrifugal Fans

Fans for Fire safety

Bifurcated Fans

Plate Fans

Roof Units

2

Total air movement solutions – precisely

Contents

Product Overview 3-4

Application Guide 5

Legislation 6

Technical Data 7-10

Drawings 11

Wiring Diagrams 12

Accessories 13

The new EC TwinBox Fan product is designedto be both energy efficient and compact, offering ‘on demand’ ventilation along witheasy installation.

Controls are integral and feature our ‘2nd generation’ intelligentfan controller, which has a simplified control interface that allowsfor easy installation and commissioning.

As our EC TwinBox Fan product makes use of EC motortechnology, energy usage is minimised, which means thatspecific fan powers are low, in line with the latest buildingregulations and current legislation.

3

IntroductionOften modern building designs restrict the space available to install ventilation equipment. In these situations the

size of the ductwork is limited and often the fan itself has to be mounted in ceiling voids close to the building

occupants. These restrictions mean that fans need to be compact, reliable and quiet in operation.

The Fläkt Woods EC TwinBox Fan unit has been specifically designed to meet these requirements, as it features

high efficiency energy saving motors driving backward curved impellers, mounted inside an acoustically lined

casing, which offers the optimum installed solution.

SizesThe EC TwinBox Fan range is available to suit circular ductwork that is 250mm, 315mm or 450mm in diameter.

ConstructionCasings are manufactured from pre-galvanised sheet steel and are carefully designed to provide a strong and

rigid casing to minimise vibration.

EC TwinBox Fan units have circular inlet and outlet spigots with a double-lip neoprene seal to minimise air

leakage. The units are internally lined with re-engineered acoustic foam with an erosion proof facing to prevent

the carry over of fibres into the air stream.

Units are designed for duct mounting within the building or external mounting if required (weatherproof variant

available on request).

Fläkt Woods offers circular spigots as standard but rectangular spigots are available on request.

Electrical Supply220 - 240V / 50Hz / 1φ

380 - 420V / 50Hz / 3φ (450 size only)

MountingSuitable for both horizontal and vertical mounting (excluding vertical mounting when airflow is downward).

ImpellersHigh efficiency backward curved centrifugal impeller design.

• Incorporates EC motor technology

• Volume flow up to 1.7m3/s

• Static pressures up to 870 Pa

• SFP's meet the needs of Part L

• Suitable for variable or constant

pressure systems

• Low breakout levels in line with Schools

Building Bulletin 93

• Twin Fans for run and standby operation

• Incorporates plug and play pre-wired

controller

• Includes BMS interface as standard

• Backward curved centrifugal impellers

• PIR - trickle and boost functions

• Supplied with matched silencers

- Features and Benefits

MotorsThis product incorporates EC Motor technology which is designed to optimize energy

savings. Motor speed control is via a 0-10v signal giving a high degree of controllability.

Operating temperature range from -25ºC to +65ºC.

Wiring/ControlsAll units are fully speed controllable using our ‘2nd generation’ integral intelligent fan controller.

The 3 phase EC TwinBox Fan variant is fitted with an electrical isolator as standard.

ServicingThe top panel of each unit can be removed for inspection and maintenance.

The fan assembly can also be easily removed for cleaning purposes.

The units can be inverted if bottom access is required.

AccessoriesSee pages 12-14 for full range of accessories.

WarrantyAll EC TwinBox Fans have a 2 year warranty as standard.

All EC motors have internal electronic overload protection

Low profile design Twin fans for run andstandby operation

Low noise levels -Acoustically lined casing

Easy installation -integral mountingbrackets included

Backward curvedcentrifugal impellers

- Features and Benefits

Integral non-returndamper

4

Intelligent fancontroller

Part of the Family

5

- Applications

TOILETS

Fast, efficient removal of

odours and air-borne

pollutants contribute to the

maintenance of cleanliness

and an acceptable

environment in communal

sanitary areas.

OFFICES

Fläkt Woods offer a high

performance product range

covering all key elements of

the overall ventilation system.

Our products are designed to

secure the best overall

performance of the system as

a whole, considering

parameters such as health and

air quality, energy efficiency,

noise, fire safety and ease of

installation.

EDUCATION

High occupancy levels during

teaching periods require

energy-efficient and

controllable demand-based

management of air quality and

temperature. The comfort,

health and alertness of staff

and pupils is ensured during

the learning process, but

operating costs can be

minimised when these facilities

are unoccupied.

GYMNASIUM/INDOOR SPORTS

Differing types of activity and

occupancy mean a broad

spectrum of functional

requirements to ensure

efficient removal of used air

and the introduction of fresh

supplies. Systems need to

contain and control the

periodic build up of high

humidity levels and

temperature.

HEALTHCARE

For a hospital to operate at

it's maximum potential, it has

to have all systems working

at the optimum. This not

only applies to staff,

communications and life

support systems, but also to

pipework, cleaning and

ventilation systems.

RETAIL/SHOPPING AREAS

With high activity levels during

the working week and

weekends, it’s important to

make sure that all areas of

ventilation are maintained and

Fläkt Woods has the systems

to achieve all requirements.

RESIDENTIAL

The purpose of ventilation is

to provide clean good quality

air by removing the stale,

polluted air from our homes.

The main task is of course to

ensure that the indoor air is

healthy and safe to breathe.

Ventilation today is also about

energy and saving energy

costs by adding heat recovery

to the ventilation system.

With any system it is always important to have the right product and application to maximise efficiency, with

Fläkt Woods’ new EC TwinBox Fan we have a variety of applications which benefit from our new range.

The applications below give an indication of where the new EC TwinBox Fan can be installed and used to

minimise energy consumption and provide precise air volume control.

6

- Legislation

Environmental Assessment SchemesIt is now very common for new build projects to try and achieve environmental standards such as those set out

in LEED and BREEAM programs. Fläkt Woods, with it's market leading knowledge and products in energy

recovery, has helped many projects achieve the very highest levels in both of these schemes.

Energy using Products Directive (EuP)The various lots within the EuP directive dictates the eco design requirements for minimum efficiency grades and

labelling. Efficiency grades for fans from 125W to 500W are already published, and EC TwinBox Fan product are

expected to be included in the near future. The efficiency requirement is the combination of the fan and drive

efficiency, so EC technology will offer the end user or the designer a solution that is better than the minimum

eco design standards.

Energy Performance of Buildings Directive (EPBD)The Commission of the European Union has recently proposed a revision of the EPBD (Energy Performance in

Buildings Directive, 2002/91/EC). The objective is to further strengthen the effectiveness and impact of the

existing Directive.

The background to this initiative is to optimise energy usage. It was noted that even in member states where the

existing Directive has been successfully implemented, the Commission still identified an untapped potential for

improvements that could further reduce the energy consumption and CO2 emissions from buildings.

Building Regulations - Part L2 for New (A) and Existing Buildings (B)Effective from October 2010, Building Regulations Part L and F outline the need for a healthier working/indoor

environment, with the target to decrease CO2 emissions by a further 25% from the initial reduction stated

within the 2006 document. The eco design of our EC Fan range will allow specifiers to create designs which

incorporate the necessary energy usage reductions, whilst still providing precise control of mechanical ventilation.

LEGISLATION

In Europe, all countries now have to design their new buildings to meet energy targets that

are set out in the Energy Performance in Buildings Directive (EPBD). All Fläkt Woods Energy

Performance of Buildings Directive solutions are designed to enable full compliance with this

and other directives regarding ventilation and air conditioning.

ge reductions, w

Being a global manufacturer and supplier makes meeting legislation easier for Fläkt Woods. It means that

Fläkt Woods must produce solutions at standards that equal the most stringent legislation and guidelines around.

Only by doing this can we ensure that we meet relevant standards within every market.

7

Technical & Performance DataSize 1 (250) - PN EC011110#

SpeedInlet Spectra Inlet

dBA @ 3m

BreakoutdBA @ 3m

Silencer dBA Attenuation

63 125 250 500 1k 2k 4k 8k 300L 600L 900L 1200L

10V 60 72 73 73 71 71 71 72 59 46 -8 -11 -14 -16

7V 58 68 69 72 66 66 66 70 56 43 -8 -11 -14 -16

5.5V 52 62 64 69 60 60 60 63 51 39 -9 -12 -15 -17

4V 45 53 65 55 50 51 55 49 45 30 -7 -10 -12 -15

2V 25 43 41 33 33 32 22 <20 25 <20 -5 -8 -10 -12

0

100

200

300

400

500

600

700

800

900

1000

Volume Flow (m3/s)

Sta

tic P

ress

ure

(Pa)

(speed 1) 2v(speed 2) 4v(speed 3) 5.5v(speed 4) 7v(speed 5) 10v

0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50

Note: # Part number refers to internal versionStarting Current is the same as the FLC amps as motors are of the "soft start" type. Inlet Spectra data shown has been A-weighted, Breakout levels are based on a measured point obtained under free field conditionsThese test data were obtained in a laboratory accredited by AMCA for BS848, part 1 / ISO5801 testing.

RangeSize No Criteria

Airflow m3/s @ Static Pressure Pa MotorkW

FLC(amps)5 10 15 25 50 100 150 200 300 400 500 600

1

10v

m3/s 0.48 0.47 0.47 0.46 0.45 0.44 0.42 0.41 0.38 0.34 0.31 0.26

0.54 3.39kW 0.45 0.46 0.46 0.47 0.47 0.48 0.50 0.50 0.52 0.53 0.53 0.52

SFP 0.95 0.97 0.99 1.01 1.05 1.10 1.18 1.23 1.36 1.55 1.70 1.99

7v

m3/s 0.39 0.38 0.38 0.38 0.37 0.35 0.33 0.31 0.27 0.22 0.15

0.31 1.94kW 0.27 0.28 0.28 0.28 0.28 0.29 0.30 0.30 0.31 0.30 0.28

SFP 0.71 0.72 0.73 0.73 0.77 0.84 0.91 0.98 1.13 1.37 1.87

5.5v

m3/s 0.30 0.30 0.30 0.29 0.28 0.26 0.23 0.20 0.12

0.15 1.01kW 0.14 0.14 0.14 0.14 0.14 0.15 0.15 0.15 0.14

SFP 0.45 0.46 0.47 0.49 0.52 0.57 0.66 0.76 1.17

4v

m3/s 0.20 0.20 0.19 0.18 0.17 0.13

0.06 0.58kW 0.05 0.05 0.05 0.06 0.06 0.06

SFP 0.25 0.26 0.28 0.31 0.34 0.45

2v

m3/s 0.07 0.06 0.05

0.015 0.13kW 0.01 0.01 0.01

SFP 0.20 0.25 0.29

8


0

200

400

600

800

1000

1200

Volume Flow (m3/s)

Sta

tic P

ress

ure

(Pa)


0.0 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80




FLC(amps)5 10 15 25 50 100 150 200 300 400 500 600

2

10v

m3/s 0.71 0.70 0.69 0.68 0.67 0.65 0.62 0.60 0.55 0.49 0.42 0.36

0.55 3.45kW 0.50 0.50 0.50 0.51 0.51 0.51 0.52 0.52 0.53 0.54 0.54 0.53

SFP 0.70 0.72 0.73 0.75 0.76 0.79 0.84 0.87 0.97 1.10 1.29 1.49

7v

m3/s 0.56 0.56 0.55 0.54 0.53 0.50 0.47 0.44 0.37 0.29 0.16

0.30 1.89kW 0.26 0.27 0.27 0.27 0.28 0.28 0.29 0.29 0.30 0.28 0.24

SFP 0.47 0.48 0.49 0.50 0.52 0.57 0.62 0.67 0.80 0.98 1.50

5.5v

m3/s 0.44 0.44 0.43 0.42 0.40 0.37 0.32 0.27 0.15

0.15 1.02kW 0.13 0.14 0.14 0.14 0.14 0.15 0.15 0.15 0.13

SFP 0.31 0.31 0.32 0.33 0.36 0.40 0.48 0.56 0.86

4v

m3/s 0.30 0.30 0.29 0.28 0.25 0.19 0.07

0.06 0.41kW 0.05 0.05 0.05 0.05 0.06 0.06 0.05

SFP 0.17 0.18 0.18 0.19 0.23 0.30 0.66

2v

m3/s 0.12 0.11 0.09 0.05

0.013 0.13kW 0.01 0.01 0.01 0.01

SFP 0.10 0.12 0.15 0.25


dBA @ 3m

BreakoutdBA @ 3m


63 125 250 500 1k 2k 4k 8k 300L 600L 900L 1200L

10V 60 65 78 71 66 65 67 60 59 47 -7 -9 -11 -14

7V 56 63 79 66 61 60 61 55 59 47 -6 -8 -10 -14

5.5V 51 65 65 59 55 54 55 47 48 35 -5 -7 -9 -12

4V 45 56 56 51 47 45 44 35 39 26 -5 -7 -9 -12

2V 36 34 35 31 29 23 21 <20 20 <20 -4 -6 -7 -9

9


dBA @ 3m

BreakoutdBA @ 3m


63 125 250 500 1k 2k 4k 8k 300L 600L 900L 1200L

10V 58 68 68 64 63 64 59 50 52 43 -4 -6 -8 -11

7V 57 67 63 60 58 59 54 46 49 39 -3 -5 -7 -10

5.5V 61 62 58 54 53 53 46 38 45 34 -2 -4 -6 -7

4V 50 49 50 48 46 44 36 30 35 25 -3 -5 -7 -8

2V 33 39 34 33 30 30 27 25 21 <20 -3 -5 -7 -9


0

100

200

300

400

500

600

Volume Flow (m3/s)

Sta

tic P

ress

ure

(Pa)


0.0 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60



FLC(amps)5 10 15 25 50 100 150 200 300 400 500 600

3

10v

m3/s 1.43 1.43 1.42 1.40 1.36 1.29 1.21 1.12 0.92 0.67

0.62 2.71kW 0.54 0.54 0.54 0.54 0.56 0.57 0.59 0.60 0.62 0.60

SFP 0.37 0.38 0.38 0.39 0.41 0.44 0.49 0.54 0.67 0.90

7v

m3/s 1.16 1.15 1.14 1.12 1.06 0.95 0.84 0.73 0.40

0.38 1.64kW 0.31 0.31 0.32 0.32 0.34 0.36 0.38 0.38 0.34

SFP 0.27 0.27 0.28 0.29 0.32 0.38 0.45 0.52 0.85

5.5v

m3/s 0.91 0.89 0.88 0.85 0.78 0.65 0.49

0.21 0.92kW 0.17 0.18 0.18 0.18 0.20 0.21 0.20

SFP 0.19 0.20 0.20 0.22 0.25 0.32 0.42

4v

m3/s 0.66 0.65 0.63 0.60 0.51 0.24

0.095 0.47kW 0.08 0.08 0.08 0.09 0.09 0.09

SFP 0.12 0.13 0.13 0.15 0.18 0.36

2v

m3/s 0.32 0.29 0.25 0.15

0.028 0.25kW 0.03 0.03 0.03 0.03

SFP 0.08 0.09 0.11 0.18


10


dBA @ 3m

BreakoutdBA @ 3m


63 125 250 500 1k 2k 4k 8k 300L 600L 900L 1200L

10V 61 75 72 69 68 69 66 56 58 48 -3 -6 -8 -11

7V 58 68 67 64 63 64 60 52 52 43 -4 -7 -9 -11

5.5V 56 67 63 59 58 59 53 45 49 39 -3 -5 -7 -10

4V 58 54 55 52 50 51 43 36 41 30 -3 -4 -6 -7

2V 37 41 37 38 33 29 26 26 24 <20 -3 -5 -7 -9

Technical & Performance DataSize 4 (450 3ph) - PN EC043110#

0

100

200

300

400

500

600

700

800

Volume Flow (m3/s)

Sta

tic P

ress

ure

(Pa)


0.0 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00



FLC(amps)5 10 15 25 50 100 150 200 300 400 500 600

4

10v

m3/s 1.71 1.71 1.70 1.68 1.65 1.59 1.53 1.46 1.32 1.14 0.95 0.71

1.02 1.95kW 0.87 0.88 0.88 0.89 0.90 0.92 0.94 0.95 0.98 1.00 0.99 0.97

SFP 0.51 0.51 0.52 0.53 0.54 0.58 0.61 0.65 0.74 0.87 1.05 1.37

7v

m3/s 1.42 1.41 1.40 1.39 1.35 1.27 1.19 1.10 0.90 0.65

0.64 1.30kW 0.55 0.56 0.56 0.56 0.57 0.59 0.61 0.62 0.63 0.62

SFP 0.39 0.39 0.40 0.40 0.42 0.47 0.51 0.56 0.70 0.96

5.5v

m3/s 1.15 1.14 1.14 1.11 1.07 0.97 0.86 0.73

0.35 0.77kW 0.30 0.31 0.31 0.31 0.32 0.33 0.34 0.35

SFP 0.27 0.27 0.27 0.28 0.30 0.34 0.40 0.48

4v

m3/s 0.83 0.82 0.80 0.78 0.71 0.55 0.29

0.15 0.40kW 0.13 0.14 0.14 0.14 0.15 0.15 0.15

SFP 0.16 0.17 0.17 0.18 0.21 0.28 0.50

2v

m3/s 0.38 0.34 0.31 0.24

0.038 0.22kW 0.03 0.04 0.04 0.04

SFP 0.09 0.10 0.12 0.15


11

- Drawing & Dimensions

ProductCode A B C ØD E F G H CRS I CRS ØJ Weight

(KG)

Size 1 614 870 384 250 260 67 40 588 833 9 51

Size 2 734 960 440 315 272.5 62.5 40 708 923 9 65

Size 3/4 1054 1306 615 450 381.6 82.5 65 1028 1269 9 134

AIRFLOW

EE

G GA

B

88

MAX

H CRS Ø J

I CR

S

ØD

PLAN VIEW

20

C

FØ

DF

SIDE VIEW

Note: Matched silencers are available as accessories

φ C

35 A 98

42.525

φB

12

Product Code

ProductNumber

OCTAVE BAND CENTRE FREQUENCE - Hz Dimensions Weight (Kg)63 125 250 500 1000 2000 4000 8000 A ØB ØC

S250

DH250081 2 3 6 12 16 19 17 8 300 248 352 5

DH250082 3 6 10 19 25 29 18 10 600 248 352 9

DH250083 5 8 12 24 30 30 22 14 900 248 352 13

DH250084 7 10 15 31 37 38 26 15 1200 248 352 17

S315

DH315081 1 3 6 12 15 18 16 8 300 313 418 6

DH315082 3 5 8 16 21 22 16 14 600 313 418 11

DH315083 4 7 10 20 31 28 17 14 900 313 418 15

DH315084 6 9 14 23 32 32 18 15 1200 313 418 20

S450

DH450081 1 1 4 10 14 15 12 7 300 448 552 8

DH450082 2 4 6 14 16 16 13 11 600 448 552 15

DH450083 3 6 8 17 24 21 15 11 900 448 552 22

DH450084 4 8 13 20 29 25 16 11 1200 448 552 32

- Silencer & Wiring Diagram

L N E A1 A2 +10V 0-10V GND

L1 N E REG N 0-10V 0V RUN

NC COM

ALARMRELAY

PLUG INTO MOTOR 1 SOCKET PLUG INTO INVERTER SOCKET 1

I-FAN TERMINALS

L N E A1 A2 +10V 0-10V GND

L1 N E REG N 0-10V 0V RUN

NC COM

ALARMRELAY

PLUG INTO MOTOR 2 SOCKET PLUG INTO INVERTER SOCKET 2

I-FAN TERMINALS

0 - 10VdcOutput to fan 1

0 - 10VdcOutput to fan 2

13

Improved Environment Our advanced ventilation control maintains

improved indoor air quality, improved productivity

and comfort quality.

Energy and Cost Savings Our demand controlled solution, reduces

ventilation running costs, energy consumption,

maintenance and noise.

Increased Safety Control system (sensors) run a low voltage-SELV

(Safety Extra Low Voltage) improving the safety

of installers and users.

Simplified Installation Sensors and switches can be wired directly into their associated controller plugs, which are supplied as standard,

pre-installed into the Intelligent Fan Controller PCB. Sensors and switches are supplied with a 10m length of cable

and a flexible gland as standard.

Single Source All Intelligent Fan products are stand alone, and fully functional, ensuring operational responsibility is from one

source.

User DisplayThe Intelligent Fan Controller has a LED screen to display all necessary values for setup, operation and maintenance.

A simple 4 button interface simplifies setup and day-to-day operation.

Scope The Intelligent Fan System from Fläkt Woods offers a full range of fans with an integral intelligent control unit along

with a range of switches, sensors and fittings to enable easy installation.

iFan Range

Intelligent Control Unit (ICU) iFICU• Output 24V to the sensors, inputs are 0-10V from sensors• Indicates fan run, fault and service requirements• Can be integrated with a Building Management System (BMS)• Remote monitoring availability eg. BMS• Varies fan performance in response to input signals• Provides ventilation from maximum or trickle to stop• Duty sharing and auto changeover facility• Indicates total running time, to assist servicing• User friendly display

- Intelligent Fan Controller

Down ArrowButton

Enter (Set)Button

Up ArrowButton

Two LineDisplay

Reset(Exit) Button

14

PIR Switch (Occupancy Sensor) Room mounted iFPIRSW-R (P/N 430817)• Switches the fan on when occupancy sensed• Suitable for wall mounting, with a 10 metre cable and a flexible gland. Connection plug included in controller.

Temperature Switch Room mounted iFTSW-R (P/N 430845)• Enables user to manually adjust the temperature set point• Suitable for wall mounting, with a 10 metre cable and a flexible gland. Connection plug included in controller.

Relative Humidity Switch Room mounted iFHSW-R (P/N 430843)• Enables the user to manually adjust the humidity set point• Suitable for wall mounting, with a 10 metre cable and a flexible gland. Connection plug included in controller.

Duct Pressure Sensor iFPSVSE-D (P/N 430846)• Communicates pressure to the controller (ICU)• Pressure range adjustable from 0 to 1000 Pa• Suitable for wall mounting with a 10 metre cable and a flexible gland. Connection plug included in controller.• Length of connection tube provided

CO2 Sensor iFCO2SE-D (P/N 430842)• Measures CO2 ranging from 0 to 200 ppm• Suitable for duct mounting, with a 10 metre cable and a flexible gland. Connection plug included in controller.

Temperature Sensor Room mounted iFTSE-R (P/N 430818)• Communicates temperatures to the controller (ICU)• Suitable for wall mounting, with a 10 metre cable and a flexible gland. Connection plug included in controller.

Relative Humidity Sensor Room mounted iFHSE-R (P/N 430844)• Measures humidity range 0 to 100% RH• Suitable for wall mounting, with a 10 metre cable and a flexible gland. Connection plug included in controller.

Air Valve iFK #• Two sizes 100mm and 125mm• Manually adjusted during installation

Motorised Air Valve iFK-M #• Two sizes 100mm and 125mm• Motorised operation varying airflow from trickle to full ventilation • Use with 24V Transformer iFTR24

• Use with PIR - iFPIRSW-R

Motorised Air Valve iFK-MH #• Integral humidity switch• Two sizes 100mm and 125mm• Motorised operation varying airflow from trickle to full ventilation• Use with 24V Transformer iFTR24• Use with PIR - iFPIRSW-R

Constant Pressure Damper iFEMSS #• 5 sizes, 100mm to 315mm• Damper complete with integral rubber seal• Connection spigots fitted with neoprene sealing ring• Complete with Damper actuator

Constant Pressure Damper (P/N 430012)• 125mm duct spigot• Complete with integral PIR and humidity sensors• Use with 24V Transformer iFTR24

24V Transformer iFTR24 (P/N 419048)• For use with iFKM, iFK-MH, iFIRIS-M• Transforms 220-240V/50Hz/1ph to 24V output to one or more valves/dampers

Cleanvent exhaustUsing the latest Nano-technology the unique Avalon® coating ensures that the valves stay clean,significantly reducing the need for maintenance. In addition, the lack of grime and direct ensures that theair diffusion and the throw pattern continue to function as planned, enuring optmised energy efficiency.CleanVent air terminal devices are particularly useful in places that are difficult to access.

- Intelligent Fan Controls

Note: # Part numbers for size variants available on request

We Bring Air to Life

Fläkt Woods is a globalleader in air management.We specialise in the designand manufacture of a widerange of air climate and airmovement solutions. Andour collective experience is unrivalled.

Our constant aim is to provide systems that precisely deliver requiredfunction and performance,as well as maximise energy efficiency.

Fans

Advanced axial, centrifugal andboxed fans for general and specialistapplications. Comprehensive rangeincluding high temperature andATEX compliant options. Engineeredfor energy efficiency and minimisedlife cycle cost.

Air Handling Units (AHUs)

Modular, compact and small AHU units. Designed to ensure optimisation of indoor air quality,operational performance and service life.

Chillers

Air-cooled and water-cooled chillerswith cooling capacity up to 1800kW.Designed to minimise annual energy consumption in all types of buildings.

Chilled Beams

Active induction beams for ventilation, cooling and heating, and passive convection beams for cooling. For suspended or flush-mounted ceiling installation –and multi-service configuration.With unique Comfort Control andFlow Pattern Control features.

Solutions for all your air climate and air movement needs

Fläkt Woods is the only company in the UK capable of providing total system solutions from the following portfolio:

Smoke control and car parkventilation systems

Unique approach to car park ventilation, aided and optimised by Computational Fluid Dynamics(CFD) software. Complete turnkeysolutions for designing, installingand commissioning mechanical and natural smoke ventilation.

Controls and drives

Variable speed drives and controlsystems, all tested to ensure totalcompatibility with our products. Specialist team can advise on energysaving and overall system integration.

Technical Site Services

Our dedicated team providing comprehensive post-installationservices. Including condition-based contract monitoring, preventative androutine maintenance, refurbishmentand system upgrades.

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K/

KPBEXBF-01/0111

Fläkt Woods LimitedAxial Way, Colchester, Essex, C04 5ZDTel: 01206 222 555 Fax: 01206 222 777

email: [email protected] web: www.flaktwoods.co.uk

Fläkt Woods operates a policy of continuous improvement and reserves the right to supply products that may differ from those illustrated and described in this publication. Certified dimensions can be supplied on request on receipt of order.

Documents

EC TwinBox Fan Range