Function
Connector
No.
Pin
No.
Specifications
Remarks
Bit 1 OFF: No terminator resistor,
ON: Terminator resistor provided
Setup at shipment OFF: No terminator resistor.
Only 1 unit is ON during central control by custom only.
Terminator resistor
provided/Not provided
Remote controller A/B
SW01
Bit 2 OFF: Remote controller A
ON: Remote controller B
Setup at shipment OFF: Remote controller A
1 DC12V
Fan output
CN32
2 Output
Setup at shipment: Linked operation of ON with operation of
indoor unit and OFF with stop
* The setup of single operation by FAN button on remote
controller is executed from remote controller. (DN = 31)
1 Start/Stop input
HA Start/Stop input (J01: Provided/Not provided =
Pulse (At shipment from factory)/Static input switch)
2 0V (COM)
3 Handy prohibition input
Operation stop of handy remote controller is permitted /
prohibited by input.
4 Operation output
ON during operation (Answer back of HA)
5 DC12V (COM)
HA
CN61
6 Alarm output
ON during output of alarm
1 DC12V (COM)
2 Defrost output
ON during defrosting of outdoor unit
3 Thermo-ON output
ON when Real thermo. ON (Comp. ON)
4 Cooling output
ON when operation mode is cooling line
(Cool, Dry, Cooing/Heating AUTO cooling)
5 Heating output
ON when operation mode is heating line
(Heat, Cooling/Heating AUTO heating)
Optional output
CN60
6 Fan output
ON when indoor fan is ON
1 DC12V (COM)
2 DC12V (COM)
Outside error input
CN80
3 Filter/Option/Outside error input
At shipment from factory, the error code “L30” generates and
optional error input to stop operation forcedly (DN:2A = 1) is
controlled (Display of protection for devices attached to outside)
by setup of outside error input (DN:2A = 2) for 1 minute.
* Optional error input control is set up on the remote
controller.
1 Check mode input
CHK
Operation check
CN71
2 0V
This check is used for operation check of indoor unit.
(The specified operation such as indoor fan “H”, drain pump
ON, etc. is executed without communication with outdoor
unit or remote controller.)
1 Display mode input
DISP
Display mode
CN72
2 0V
Display mode, communication is enabled by indoor unit and
remote controller only.
(When power supply is turned on.)
Timer short (Usual)
1 Demand input
EXCT
Demand
CN73
2 0V
Indoor unit forced thermo-OFF operation
Wall-Type P.C. Board Optional Switch/Connector Specifications
2
Input for float
SW
CN
34
1
DC12V
Normal when between
1
-
3
short-circuits, but
abnormal when open-circuits. (check code "P10"
appears)
NC
3
Float SW input
2
Output for
Flow selector
unit
CN
81
1
DC12V
EP valve output
(Open collector)
3
Balance valve output
(Open collector)
4
Suction valve output
(Open collector)
5
Discharge valve output
(Open collector)
3
Output power
supply for
option
CN
309
1
AC230V
This can be used as power supply for option devices.
AC230V
2
Connection
for option
P.C.board
CN
521
1
DC12V
Connected Application control kit (TCB-PCUC2E)
DC5V
3
Send
4
Receive
5
0V
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