Master/Slave Control - Carrier 42BJ ICM Installation Manual

13.4 - Master/slave control

With the high capacity fan speed controller it is possible to link up to 5 ICMs to one Carrier thermostat with no additional relays.
Electrothermal 230 V.a.c. on/off actuators are used. When electric heaters are used with a cooling coil the heater power contactor
must be used.
13.4.1 - 4 pipe configurations
Cooling
Heating
valve
valve
Fan
Cooling
Heating
valve
valve
Fan
Supply:
230 V, 50 Hz, 1 phase
3G1, 5 mm 2
Protection: T2A
Supply:
230 V, 50 Hz, 1 phase
3G1, 5 mm 2
Protection: T2A
Speed 1 (Ls)
Speed 2
Speed 3 (Hs)
Cooling valve control
Heating valve control
L: Thermostat supply (230 V a.c.)
N: Thermostat supply (230 V a.c.)