MULTI TYPE

6-3. Optional Connector Specifications of Indoor P.C.
Board
Function Connector No. Pin No.
Fan output CN32
1
2
HA
CN61
1
2
3
4
5
6
Optional output CN60
1
2
3
4
5
6
External CN80
1
error input
2
3
FILTER
Optional error
CHK
Operation check
DISP
Display mode
EXCT
Demand
CN70
CN71
CN72
CN73
1
2
1
2
1
2
1
2
DC12V
Output
Start/stop input
0V(COM)
Remote controller disabling input
In-operation output
DC12V(COM)
Alarm output
DC12V(COM)
Defrosting output
Thermostat ON output
Cooling output
Heating output
Fan output
DC12V(COM)
DC12V(COM)
External error input
0V
Check mode input
0V
Display mode input
0V
Demand input
0V
Specification Remarks
"FILTER/optional/humidifier
setting" input
Factory default setting: ON when indoor unit in operation and OFF when indoor unit at rest
* Fan can be operated on its own by pressing FAN button on remote controller (DN = 31)
Start/stop input for HA (J01: In place/Removed = Pulse input (factory default)/Step input)
Enables/disables start/stop control via remote controller
ON during operation (HA answerback signal)
ON while alarm ON
ON while outdoor unit defrosted
ON while real thermostat ON (compressor ON)
ON while air conditioner in cooling or related operation (COOL, DRY or cooling under AUTO mode)
ON while air conditioner in heating operation (HEAT or heating under AUTO mode)
ON while indoor fan ON (air cleaner in use or via interlock wiring)
Generates test code L30 and automatically shuts down air conditioner (only if condition persists
for 1 minute)
Factory default setting to be humidifier (evaporative + drain pump OFF)
Used for control of optional error input (display of action of protective device for equipment connected externally)
* "Optional error input" setting to be performed via the remote controller (DN = 24)
Used for indoor operation check (prescribed operational status output, such as indoor fan "H" or
drain pump ON, to be generated without communication with outdoor unit or remote controller)
Product display mode - Communication just between indoor unit and remote controller enabled (upon turning on of power)
Timer short-circuited out (always)
Imposes thermostat OFF on indoor unit
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