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8-1-3. Optional Connector Specifications of Indoor P.C. Board
Function
Humidifier output
Fan output
—
Option output
Outside error input
—
—
CHK operation check
DISP exhibition mode
EXCT demand
Connector
No.
CN66
CN32
CN61
CN60
CN80
CN20
CN70
CN71
CN72
CN73
Pin
No.
—
—
Specifications
DC12V
Output
DC12V
Output
ON/OFF input
0V (COM)
Main prohibition input
Operation output
DC12V (COM)
Alarm output
DC12V (COM)
Defrost output
Thermo ON output
COOL output
HEAT output
Fan output
DC12V (COM)
DC12V (COM)
Outside error input
—
—
Check mode input
0V
Display mode input
0V
Demand input
0V
Remarks
In heating, thermo ON, Fan ON, Humidifier output ON
* Humidifier provided, Drain pump ON is set up by CN70
short-circuit or from remote controller. (DN=40)
Shipment setup: ON with indoor unit operation and OFF
with stop are linked.
* Single operation by FAN button on remote controller is set
up from remote controller (DN=31)
HA ON/OFF input
(J01: YES/NO=Pulse (At shipment) / Static input select)
Operation stop of main remote controller is permitted /
prohibited by input.
ON during operation (Answerback of HA)
ON during alarm output
ON when outdoor unit is defrosted
ON during Real thermostat ON (Compressor ON)
ON when operation mode is cooling system
(COOL, DRY, Cool/Heat Auto cooling)
ON when operation mode is heating system
(HEAT, Cool/Heat Auto cooling)
ON when indoor fan is ON
(During use of air cleaner/Interlock cabling)
Generate check code “L30” (for 1 minute continuously) to
stop forcedly the operation.
—
—
Used for indoor operation check.
(Outdoor does not communicate with remote controller, and
outputs specified operation such as indoor fan “H”, drain
pump ON, etc.)
Exhibition mode enables to communicate by indoor unit and
remote controller only.
(When power has been turned on.) Timer short (Usual)
Indoor unit forced thermostat OFF operation