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6-6. Applied Control of Indoor Unit
6-6-1. Control system using remote control interface (TCB-IFCB4E2)
Wiring and setting
• In the case of group control, the control system functions as long as it is connected to one of the indoor units
(control P.C. board) in the group. If it is desired to access the operation and error statuses of other units,
relevant signals must be brought to it from those units individually.
Control items
(1) Start/Stop input signal Start/stop of unit
(2) In-operation signal Output present while unit in normal operation
(3) Error signal Output present while alarm (e.g. serial communication error or operation of
protective device for indoor/outdoor unit) being activated
Wiring diagram of control system using remote control interface (TCB-IFCB4E2)
Input IFCB4E2: No-voltage ON/OFF serial signal
Output No-voltage contact (in-operation and error indication)
Contact capacity: Max. AC 240V, 0.5A
1
2
3
4
5
6
1
2
3
4
CN61
T10
(yellow)
1
2
3
4
5
6
CN13
CN06
Indoor control P.C. board
Start/stop input
COM (GND)
Remote controller disabling/enabling input
In-operation signal output
COM (+12V)
Error signal output
Power source 220-240V
ON side
COM
Start signal input
In-operation signal output
Error signal output
OFF side
Stop signal input
TCB-IFCB4E2
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