Table of Contents
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Contents
1 - INTRODUCTION..............................................................3
2 - FEATURES.........................................................................4
2.1 - Physical and electrical data...............................................4
2.2 - Dimensional drawings ......................................................5
2.3 - ICM packaging ...............................................................10
2.4 - Receiving a shipment - installation methods..................10
3 - SAFETY CONSIDERATIONS .......................................11
3.1 - General ............................................................................11
3.2 - Precautions against electrocution....................................11
3.3 - Installation Recommendations........................................11
3.4 - Conformity ......................................................................11
4 - INSTALLING THE 42BJ ICM ......................................12
4.1 - Matching the unit to the false ceiling .............................12
4.2 - Safety precautions...........................................................12
4.3 - Installation procedure .....................................................12
4.4 - Removing an ICM ..........................................................13
5 - FRESH AIR ......................................................................14
5.1 - Constant flow fresh air controller...................................14
5.2 - Fresh air duct as optional accessory ...............................14
6 - FAN MOTOR ASSEMBLY.............................................15
6.1 - Description ......................................................................15
6.2 - Removing the fan assembly............................................15
6.3 - Replacing the capacitor...................................................16
7 - WATER COIL ..................................................................16
7.1 - Removing the water coil.................................................16
7.2 - Coil inlet/outlet positions................................................17
8 - WATER FLOW CONTROL VALVES...........................19
8.1 - Electrothermal actuator (on/off) .....................................19
8.2 - Replacing actuators.........................................................19
8.3 - Electrical circuit diagrams for actuators.........................19
8.4 - Replacing a valve body...................................................20
The photo shown on the front cover is solely for information, and not contractually binding. The manufacturer reserves
the right to make changes without previous notification.
9 - FLEXIBLE WATER PIPES............................................21
9.1 - Two-way valves ..............................................................21
9.2 - Three-way valves ............................................................21
10 - AIR FILTER AND ACCESS.........................................22
10.1 - Description ....................................................................22
10.2 - Replacing the air filter ..................................................22
11 - ELECTRIC HEATER ...................................................23
11.1 - Replacing the electric heater.........................................23
11.2 - Electric heater performance ..........................................24
12 - FLOW MEASUREMENT DEVICE............................26
12.1 - Description ....................................................................26
12.2 - Pressure diaphragm characteristics...............................26
13 - CONTROLLER .............................................................28
13.1 - Carrier numeric controller ............................................28
13.2 - The various ICM configurations available ...................30
heating/cooling changeover switch...............................30
13.4 - Master/slave control......................................................31
13.5 - Wiring diagrams............................................................33
14 - ACCESSORIES..............................................................35
14.2 - Condensate drain pump ................................................35
15 - 42BJ ICM CHARACTERISTICS................................39
15.1 - Electrical data ...............................................................39
15.2 - Air flow/available static pressure data..........................41
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Table of Contents
