IMI CWR 25 Manuale utente

-1-

TECHNICAL MANUAL

for CWR CHILLED WATER

CEILING MOUNTED/RECESSED SYSTEMS.

This manual provides technical and installation information for

CWR

968 series

CHILLED WATER CEILING

MOUNTED/RECESSED

indoor units.

INDEX PAGE

GENERAL

Part numbers, dimensions and weights 2

Unit features/accessories 2

SELECTION

Control valves, airflows, discharge velocities 3

Chilled water duties 4

LPHWduties, 6

Hydraulic resistance 7

Optional electric heating 7

Sound pressure levels 7

Coil water volumes 7

UNIT

CWRmounting 8

INSTALLATION

Pipework and electrical connections 9

CWR remote controller12

Condensate removal, air deflection 11

WIRING

CWRunits 13

DIAGRAMS

OPERATION

CWR14

KITS

Remote sensor kit 15

Condensate pump kit 18

Electric heater kit 22

3 port diverting valve24

Pipe thermostat 25

MAINTENANCE

CWRunits 25

COMPONENT

Exploded view of unit with 26

IDENTIFICATION

component Identification

IMI Air Conditioning Ltd.

Armytage Road, Brighouse,

West Yorkshire. HD6 1QF

Tel: (01484) 405600

Fax: (01484) 721949 A subsidiary company of IMI plc

email: sales@imi-airconditioning.co.uk

96808003-03

Heronhill - for all your Airking requirements

Tel: 01823 665660

www.heronhill.co.uk

Fax: 01823 665807

-2-

IMI AIR CONDITIONING LIMITED

CWR CHILLED WATER CEILING MOUNTED/RECESSED UNITS

The

CWR

range consists of 968 series chilled water ceiling mounted/recessed indoor units.

CWR CHILLED WATER INDOOR UNITS

Models CWR 25 CWR 45 CWR 65 CWR 85

Part Number 96800001 96800002 96800003 96800004

DIMENSIONS AND WEIGHTS (Unpacked)

CWR CHILLED WATER UNITS

Model CWR

25 45 65 85

HEIGHT mm 189 189 189 189

WIDTH mm 630 930 1230 1530

DEPTH mm 761 761 761 761

WEIGHT kg 20 25 30 36

DIMENSIONS AND WEIGHTS (Packed)

CWR CHILLED WATER UNITS

Model CWR

25 45 65 85

HEIGHT mm 280 280 280 280

WIDTH mm 740 1040 1340 1640

DEPTH mm 900 900 900 900

WEIGHT kg 26 36 47 55

FEATURES/ACCESSORIES

FEATURE CWR

Manual air deflection STD

Return air sensor

(incl electronic thermostat)

Electric heating *

3 fan speeds STD

Remote hard wired control STD

Pendant control cable *

Condensate pump *

Long life washable filter STD

Remote temperature sensor STD

Valve options **

Control Options **

LPHW Coil heating **

Key: * = factory/site option. ** = factory fitted option STD = standard.

NOTE:

If using valves other than those specified by IMI Air Conditioning Ltd., ensure that there is electrical continuity

through the valve in all positions, otherwise the indicator lights on the remote control will remain on at all times.

For group control systems, contact IMI Air Conditioning Ltd. Technical Sales Department.

Heronhill - for all your Airking requirements

Tel: 01823 665660

www.heronhill.co.uk

Fax: 01823 665807

-3-

OPTIONAL CONTROL VALVES

2 port on/off valves or 3 port diverting valves are available as factory fitted options. Chilled water valves are supplied

with valve drain trays. (4 port modulating valves are also available - contact IMI Air Conditioning Technical Sales

Department).

2 pipe cool only systems require one valve per fan coil.

2 pipe heat/cool systems (supplied from a reverse cycle chiller, or chiller + boiler) require one valve: if using an auto

changeover thermostat, they also need a means of signalling heating or cooling status of the flow eg a pipe

thermostat (kit shown on page 41).

4 pipe systems require two valves or one modulating valve (but no pipe thermostat is needed).

AIRFLOWS

CWR Minimum Speed Medium Speed Maximum Speed

CFM m3/h m3/s CFM m3/h m3/s CFM m3/h m3/s

25 125 205 0.06 160 270 0.08 200 340 0.09

45 255 430 0.12 290 490 0.14 420 710 0.20

65 350 595 0.17 415 700 0.19 660 1120 0.31

85 440 750 0.21 715 1215 0.34 850 1440 0.40

DISCHARGE VELOCITIES

The air discharge vanes are manually adjustable both vertically and horizontally to allow a larger choice of angle of

airthrow and direction. It is suggested that, in cooling mode, the discharge is directed horizontally along the ceiling.

In heating mode vanes can be moved to a 30

downward discharge.

It is also possible to move the air off boxes to a 90

downward discharge, creating an air curtain.

Heronhill - for all your Airking requirements

Tel: 01823 665660

www.heronhill.co.uk

Fax: 01823 665807

-4-

CHILLED WATER DUTIES (kW)

CWR 25

Air Entering

Dry Bulb (Wet Bulb) 21/C (15/C) 24/C (17/C) 27/C (19/C) 29/C (19/C)

Air Flow m3/h 205 270 340 205 270 340 205 270 340 205 270 340

Water

In /C

Water

Out /CDUTY

Total 0.83 1.00 1.20 1.20 1.40 1.70 1.50 1.90 2.20 1.60 1.90 2.20

Sensible 0.67 0.84 1.00 0.86 1.10 1.30 1.00 1.30 1.50 1.20 1.40 1.70

511

Total 0.65 0.73 0.82 0.88 0.99 1.20 1.20 1.50 1.70 1.30 1.50 1.80

Sensible 0.59 0.71 0.82 0.72 0.87 1.00 0.88 1.10 1.30 1.00 1.30 1.50

513

Total 0.54 0.64 0.72 0.75 0.84 0.93 1.00 1.10 1.20 1.00 1.10 1.30

Sensible 0.54 0.64 0.72 0.67 0.80 0.93 0.79 0.95 1.10 0.91 1.10 1.30

711

Total 0.59 0.68 0.83 0.93 1.10 1.30 1.30 1.60 1.80 1.30 1.60 1.80

Sensible 0.57 0.68 0.83 0.74 0.92 1.10 0.92 1.10 1.30 1.00 1.30 1.50

713

Total 0.51 0.60 0.68 0.69 0.78 0.89 0.94 1.20 1.40 0.96 1.20 1.40

Sensible 0.51 0.60 0.68 0.64 0.78 0.89 0.77 0.96 1.20 0.89 1.10 1.30

715

Total 0.44 0.52 0.59 0.59 0.69 0.79 0.80 0.89 0.99 0.84 0.99 1.10

Sensible 0.44 0.52 0.59 0.59 0.69 0.79 0.72 0.87 0.99 0.84 0.99 1.10

913

Total 0.47 0.56 0.64 0.63 0.79 0.94 1.00 1.30 1.40 1.10 1.30 1.50

Sensible 0.47 0.56 0.64 0.62 0.78 0.94 0.81 1.00 1.20 0.93 1.20 1.40

915

Total 0.41 0.48 0.54 0.55 0.66 0.75 0.74 0.83 0.97 0.80 0.97 1.20

Sensible 0.41 0.48 0.54 0.55 0.66 0.75 0.69 0.83 0.97 0.80 0.97 1.20

917

Total 0.34 0.40 0.45 0.49 0.58 0.65 0.64 0.75 0.86 0.74 0.87 0.99

Sensible 0.34 0.40 0.45 0.49 0.58 0.65 0.64 0.75 0.86 0.74 0.87 0.99

CWR 45

Air Entering

Dry Bulb (Wet Bulb) 21/C (15/C) 24/C (17/C) 27/C (19/C) 29/C (19/C)

Air Flow m3/h 430 490 710 430 490 710 430 490 710 430 490 710

Water

In /C

Water

Out /CDUTY

Total 1.90 2.00 2.50 2.50 2.80 3.50 3.20 3.50 4.50 3.30 3.60 4.50

Sensible 1.40 1.60 2.10 1.80 2.00 2.60 2.10 2.40 3.10 2.40 2.60 3.50

511

Total 1.20 1.30 1.60 1.80 2.10 2.70 2.70 2.90 3.80 2.70 3.00 3.80

Sensible 1.20 1.30 1.60 1.50 1.70 2.20 1.90 2.10 2.80 2.10 2.40 3.20

513

Total 1.00 1.10 1.40 1.40 1.50 1.80 1.80 1.90 2.80 1.90 2.00 2.90

Sensible 1.00 1.10 1.40 1.30 1.40 1.80 1.50 1.70 2.40 1.80 2.00 2.80

711

Total 1.30 1.40 1.80 2.00 2.20 2.80 2.70 3.00 3.80 2.80 3.00 3.80

Sensible 1.20 1.30 1.80 1.60 1.70 2.30 1.90 2.10 2.80 2.20 2.40 3.20

713

Total 0.97 1.10 1.30 130 1.40 1.90 2.10 2.30 3.00 2.20 2.40 3.10

Sensible 0.97 1.10 1.30 1.30 1.40 1.90 1.70 1.80 2.50 1.90 2.10 2.80

715

Total 0.84 0.91 1.10 1.10 1.20 1.50 1.50 1.50 1.90 1.60 1.80 2.40

Sensible 0.84 0.91 1.10 1.10 1.20 1.50 1.40 1.50 1.90 1.60 1.80 2.40

913

Total 0.91 1.00 1.40 1.40 1.60 2.00 2.20 2.40 3.00 2.20 2.50 3.10

Sensible 0.91 1.00 1.40 1.30 1.50 2.00 1.70 1.90 2.50 1.90 2.10 2.80

915

Total 0.78 0.84 1.00 1.10 1.20 1.50 1.40 1.60 2.10 1.70 1.90 2.50

Sensible 0.78 0.84 1.00 1.10 1.20 1.50 1.40 1.60 2.10 1.70 1.90 2.50

917

Total 0.65 0.70 0.85 0.94 1.00 1.20 1.20 1.30 1.60 1.40 1.50 2.00

Sensible 0.65 0.70 0.85 0.94 1.00 1.20 1.20 1.30 1.60 1.40 1.50 2.00

Heronhill - for all your Airking requirements

Tel: 01823 665660

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-5-

CWR 65

Air Entering

Dry Bulb (Wet Bulb) 21/C (15/C) 24/C (17/C) 27/C (19/C) 29/C (19/C)

Air Flow m3/h 595 700 1120 595 700 1120 595 700 1120 595 700 1120

Water

In /C

Water

Out /CDUTY

Total 2.50 2.80 3.80 3.40 3.80 5.20 4.40 4.90 6.60 4.40 5.00 6.70

Sensible 1.90 2.20 3.20 2.40 2.80 3.90 2.90 3.30 4.60 3.20 3.70 5.20

511

Total 1.60 1.70 2.40 2.50 2.90 4.00 3.70 4.10 5.60 3.70 4.20 5.60

Sensible 1.60 1.70 2.40 2.00 2.30 4.00 2.60 2.90 4.20 2.90 3.30 4.70

513

Total 1.40 1.50 1.90 1.80 1.90 2.50 2.40 2.60 4.20 2.50 2.70 4.30

Sensible 1.40 1.50 1.90 1.80 1.90 2.50 2.10 2.30 3.60 2.40 2.70 4.20

711

Total 1.70 1.90 2.70 2.70 3.10 4.10 3.70 4.10 5.60 3.80 4.20 5.60

Sensible 1.60 1.80 2.70 2.10 2.40 3.40 2.60 2.90 4.10 2.90 3.30 4.70

713

Total 1.30 1.40 1.80 1.70 1.90 2.90 2.90 3.30 4.40 3.00 3.40 4.50

Sensible 1.30 1.40 1.80 1.70 1.90 2.90 2.30 2.60 3.70 2.60 3.00 4.30

715

Total 1.10 1.20 1.60 1.50 1.70 2.10 1.90 2.10 3.00 2.20 2.40 3.60

Sensible 1.10 1.20 1.60 1.50 1.70 2.10 1.90 2.10 3.00 2.20 2.40 3.60

913

Total 1.20 1.40 2.10 2.00 2.20 3.00 3.00 3.30 4.40 3.10 3.40 4.50

Sensible 1.20 1.40 2.10 1.80 2.00 3.00 2.30 2.60 3.70 2.60 3.00 4.30

915

Total 1.00 1.10 1.50 1.40 1.60 2.30 1.80 2.20 3.20 2.20 2.60 3.80

Sensible 1.00 1.10 1.50 1.40 1.60 2.30 1.80 2.20 3.20 2.20 2.60 3.80

917

Total 0.87 0.95 1.20 1.30 1.40 1.70 1.60 1.80 2.30 1.90 2.10 3.10

Sensible 0.87 0.95 1.20 1.30 1.40 1.70 1.60 1.80 2.3 1.90 2.10 3.10

CWR 85

Air Entering

Dry Bulb (Wet Bulb) 21/C (15/C) 24/C (17/C) 27/C (19/C) 29/C (19/C)

Air Flow m3/h 750 1215 1440 750 1215 1440 750 1215 1440 750 1215 1440

Water

In /C

Water

Out /CDUTY

Total 3.20 4.50 4.90 4.40 6.00 6.60 5.50 7.60 8.40 5.60 7.60 8.40

Sensible 2.50 3.60 4.10 3.10 4.40 4.90 3.60 5.20 5.80 4.10 5.80 6.50

511

Total 2.00 3.20 3.60 3.60 4.90 5.50 4.80 6.60 7.30 4.90 6.70 7.40

Sensible 1.90 3.00 3.50 2.70 3.90 4.40 3.30 4.80 5.40 3.70 5.40 6.10

513

Total 1.70 2.20 2.40 2.30 3.20 3.80 3.90 5.50 6.00 4.00 5.50 6.10

Sensible 1.70 2.20 2.40 2.20 3.20 3.80 2.90 4.30 4.80 3.30 4.90 5.50

711

Total 2.40 3.30 3.60 3.50 4.80 5.30 4.70 6.40 7.10 4.80 6.50 7.10

Sensible 2.10 3.10 3.50 2.70 3.90 4.40 3.30 4.70 5.20 3.70 5.30 5.90

713

Total 1.60 2.40 2.80 2.60 3.60 4.00 3.90 5.40 6.00 4.00 5.50 6.00

Sensible 1.60 2.40 2.80 2.30 3.40 3.80 2.90 4.20 4.80 3.40 4.90 5.50

715

Total 1.40 1.80 2.00 1.90 2.50 3.00 2.40 4.00 4.50 2.80 4.30 4.90

Sensible 1.40 1.80 2.00 1.90 2.50 3.00 2.30 3.70 4.20 2.80 4.30 4.90

913

Total 1.70 2.50 2.80 2.60 3.60 3.90 3.80 5.20 5.70 3.90 5.30 5.70

Sensible 1.70 2.50 2.80 2.30 3.40 3.80 2.90 4.20 4.70 3.30 4.80 5.40

915

Total 1.30 1.70 1.80 1.80 2.80 3.20 3.00 4.10 4.50 3.10 4.30 4.90

Sensible 1.30 1.70 1.80 1.80 2.80 3.20 2.50 3.70 4.20 3.00 4.30 4.90

917

Total 1.10 1.40 1.50 1.60 2.00 2.20 2.00 3.10 3.50 2.40 3.70 4.30

Sensible 1.10 1.40 1.50 1.60 2.00 2.20 2.00 3.10 3.50 2.40 3.70 4.30

Heronhill - for all your Airking requirements

Tel: 01823 665660

www.heronhill.co.uk

Fax: 01823 665807

-6-

LOW PRESSURE HOT WATER COIL DUTIES (kW)

CWR 25

Air Entering, Dry Bulb 10/C15/C20/C25/C

Fan Speed Min Med Max Min Med Max Min Med Max Min Med Max

Air Flow m3/h 205 270 340 205 270 340 205 270 340 205 270 340

Water

In /C

Water

Out /C

Heating

Capacity

90 80 kW 1.7 2.0 2.3 1.6 1.9 2.1 1.5 1.7 2.0 1.3 1.6 1.8

90 75 kW 1.6 1.9 2.1 1.5 1.7 2.0 1.3 1.6 1.8 1.2 1.4 1.6

80 70 kW 1.5 1.7 2.0 1.3 1.6 1.8 1.2 1.4 1.6 1.1 1.3 1.5

80 65 kW 1.3 1.5 1.8 1.2 1.4 1.6 1.0 1.2 1.4 0.9 1.1 1.2

65 55 kW 1.0 1.2 1.4 0.9 1.1 1.2 0.8 0.9 1.0 0.6 0.7 0.9

65 50 kW 0.8 0.9 1.1 0.7 0.8 0.9 0.6 0.7 0.8 0.5 0.6 0.7

CWR 45

Air Entering, Dry Bulb 10/C15/C20/C25/C

Fan Speed Min Med Max Min Med Max Min Med Max Min Med Max

Air Flow m3/h 430 490 710 430 490 710 430 490 710 430 490 710

Water

In /C

Water

Out /C

Heating

Capacity

90 80 kW 3.7 4.0 5.0 3.4 3.7 4.6 3.2 3.4 4.3 2.9 3.1 3.9

90 75 kW 3.5 3.8 4.7 3.2 3.5 4.3 3.0 3.2 4.0 2.7 2.9 3.6

80 70 kW 3.2 3.4 4.3 2.9 3.2 3.9 2.6 2.9 3.6 2.4 2.6 3.2

80 65 kW 3.0 3.2 4.0 2.7 2.9 3.6 2.4 2.6 3.3 2.2 2.3 2.9

65 55 kW 2.3 2.5 3.1 2.0 2.2 2.7 1.8 1.9 2.4 1.5 1.7 2.0

65 50 kW 2.0 2.2 2.7 1.7 1.9 2.4 1.5 1.6 2.0 1.2 1.3 1.7

CWR 65

Air Entering, Dry Bulb 10/C15/C20/C25/C

Fan Speed Min Med Max Min Med Max Min Med Max Min Med Max

Air Flow m3/h 595 700 1120 595 700 1120 595 700 1120 595 700 1120

Water

In /C

Water

Out /C

Heating

Capacity

90 80 kW 5.4 5.9 7.8 5.0 5.5 7.3 4.6 5.1 6.7 4.2 4.7 6.1

90 75 kW 5.1 5.6 7.4 4.7 5.2 6.9 4.3 4.8 6.3 4.0 4.4 5.8

80 70 kW 4.6 5.1 6.7 4.3 4.7 6.2 3.9 4.3 5.6 3.5 3.8 5.1

80 65 kW 4.4 4.8 6.3 4.0 4.4 5.8 3.6 4.0 5.2 3.2 3.6 4.7

65 55 kW 3.3 3.7 4.8 2.9 3.3 4.3 2.6 2.9 3.8 2.2 2.5 3.3

65 50 kW 3.0 3.4 4.4 2.6 3.0 3.9 2.3 2.6 3.4 1.9 2.2 2.8

CWR 85

Air Entering, Dry Bulb 10/C15/C20/C25/C

Fan Speed Min Med Max Min Med Max Min Med Max Min Med Max

Air Flow m3/h 750 1215 1440 750 1215 1440 750 1215 1440 750 1215 1440

Water

In /C

Water

Out /C

Heating

Capacity

90 80 kW 7.0 9.4 10.3 6.5 8.7 9.6 6.0 8.0 8.8 5.5 7.4 8.1

90 75 kW 6.7 8.9 9.8 6.2 8.2 9.1 5.7 7.6 8.4 5.2 6.9 7.6

80 70 kW 6.0 8.1 8.9 5.5 7.4 8.4 5.0 6.7 7.4 4.5 6.1 6.7

80 65 kW 5.7 7.6 8.4 5.2 7.0 7.7 4.7 6.3 6.9 4.2 5.6 6.2

65 55 kW 4.4 5.5 6.3 3.9 4.9 5.6 3.4 4.3 4.9 3.0 3.7 4.3

65 50 kW 4.0 5.1 5.8 3.6 4.5 5.1 3.1 3.9 4.5 2.6 3.3 3.8

Heronhill - for all your Airking requirements

Tel: 01823 665660

www.heronhill.co.uk

Fax: 01823 665807

-7-

HYDRAULIC RESISTANCES

CHILLED WATER LPHW

OPTIONAL ELECTRIC HEATING (kW)

CWR 240V 50Hz 230V 50Hz

25 0.9 0.84

45 1.75 1.63

65 2.6 2.43

85 3.5 3.27

SOUND LEVELS CWR UNITS

Sound Pressure Levels Sound Power Levels

MODEL Speed dBA NC 63Hz 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz

Min 27 22 38 45 50 48 46 41 32 29

Med 34 28 40 49 55 52 52 48 41 32

Max 40 35 47 55 59 57 58 55 49 42

Min 32 25 40 48 52 52 48 44 35 28

Med 35 29 42 51 54 55 52 49 41 31

Max 42 37 48 58 60 59 60 56 51 42

Min 31 25 40 47 51 53 46 41 32 29

Med 37 30 43 54 56 57 53 50 42 34

Max 46 42 53 62 65 63 64 61 56 49

Min 33 27 42 53 53 54 48 44 33 28

Med 41 35 48 59 60 60 58 55 48 39

Max 46 43 52 61 63 63 65 61 54 47

Sound Pressure Levels (SPL) at 3m distance, 1m below units running in

free field conditions, (dB re: 2x10

-5

N/m

Sound Power Levels (SWL) in dB re: 1pW.

COIL WATER VOLUMES (LITRES)

Model 25456585

Chilled Water Coil 0.642 1.103 1.565 2.026

LPHW Coil 0.345 0.510 0.675 0.840

Heronhill - for all your Airking requirements

Tel: 01823 665660

www.heronhill.co.uk

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-8-

CWR CHILLED WATER CEILING MOUNTED/RECESSED UNIT

The

CWR

chilled water ceiling mounted/recessed unit may be installed either within a suspended ceiling or mounted

directly onto a solid ceiling.

The installer supplies:

Either 4 lengths of screwed rod (M8) with 12 nuts and washers (suspended false ceiling), or 4 bolts (M8) and

washers (solid ceiling).

* Method of securing screwed rod to solid ceiling e.g. rawlbolt shields.

* Insulated pipework.

* Mains wiring with suitable isolation.

* Remote thermostat (available separately, part number 96000320).

* Condensate drain (12mm bore diameter tube).

* Interconnecting wires for remote thermostat; 2 screws to secure the remote thermostat.

* Method for securing solid sheathed cable if these are used.

UNPACKING

Carefully unfasten the banding and lift off the box sleeve.

The following are supplied:

CWR unit (in protective sleeve, held between two polystyrene end caps).

* Ceiling tile support rail and securing screws.

* 2 cable clamps suitable for flexible, pre-sheathed cable.

* Envelope containing end user operating instructions to be left with the end user.

Remove and discard the wooden supports (Not CWR 25).

Remove the cable clamps and place in a safe location until required.

Lift the CWR unit from the box complete with the end caps; (this will require 2 people for sizes 45 to 85).

Remove the two polystyrene end caps and the protective sleeve.

PREPARATION FOR MOUNTING

It is necessary to remove both end panels, the hinged grille, the corrugated cardboard beneath the grille, the filter and

the fascia panel prior to installation.

Remove the end panels, first opening the grey screw covers and removing the screws (two on each end panel).

Unhook the panels from the chassis.

Open the grille by pulling the handles at the top edge of the grille (Fig. 1); the grille is spring loaded and some resistance

will be felt.

Lift the filter over the retaining lug and slide it out (Fig. 2).

Fig. 1. Fig. 2. Fig. 3.

Insert a screwdriver between the grilles and disengage the grille retaining catches (Fig. 3). Swing the grille away and

unhook from the chassis.

Remove and retain all the fascia support bracket fixing screws and remove the bracket and fascia from the unit. Store

the fascia in a safe location until required.

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-9-

CHASSIS MOUNTING

NOTE:

It is generally easier to fit kits prior to mounting the unit and connecting the pipework.

CWR can be fitted into a suspended false ceiling (Fig. 4) or onto a solid ceiling (Fig. 5).

Fig. 5.

Fig. 4.

Location of the unit will depend on the room shape, load and number of units installed. Typical options are:

PIPE AND CABLE EXITS

CWR units allow a choice of two pipes exits for greater flexibility of installation.

Determine the position for the unit allowing at least 450mm clearance below the air inlet. Also ensure that the

position does not interfere with light fittings, sprinkler heads, etc..

Identify the type of ceiling and ensure that the mounting surface will support the operating weight of the unit.

MODEL CWR 25 CWR 45 CWR 65 CWR 85

OPERATING WEIGHT (kg) 22 28 34 41

Heronhill - for all your Airking requirements

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-10-

MOUNTING CENTRES

CWR A B C D E F G H J K L M

25 170 199 568 510 600 761 46 70 100 65 300 50

45 470 199 868 510 900 761 46 90 200 56 450 50

65 770 199 1168 510 1200 761 46 120 300 41 600 50

85 1070 199 1468 510 1500 761 46 130 400 36 750 50

If fitting the unit in a suspended ceiling after the ceiling has been installed, remove ceiling tiles to accept the

chassis, plus adjacent tiles on each side for general access. Use the ceiling tile support rail when the unit is

positioned some distance from the wall; the rail should be secured to the rear of the unit chassis prior to hanging

the unit.

The chassis should be supported by four (M8) bolts, or screwed rods and 12 nuts (M8 OD) on a suspended

ceiling, supplied by the installer.

On plasterboard suspended ceilings, remove sufficient of the ceiling to give clearance for the unit to be fitted, and for

access to pipework and electrics; trap doors should be left for service access to electrics and pipework.

On reinforced concrete ceilings use Rawlbolt shields or equivalent.

On wooden ceilings use battens for a mounting frame.

Suspend the chassis, using either 4 bolts and 4 washers (solid ceiling) or 12 nuts and 8 washers (suspended

false ceiling).

NOTE:

The mounting holes are keyhole slots and therefore the Rawlbolts should be installed prior to offering up the

unit.

--o--o--O--O--O--o--o--

Heronhill - for all your Airking requirements

Tel: 01823 665660

www.heronhill.co.uk

Fax: 01823 665807

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