Indoor P.C. Board Optional Connector Specifications (MCC-1631)
Function
Connector No.
Pin No.
Specification
Remarks
Fan output
CN32
1
DC12 V
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)
2
Output
HA
CN61
1
Start / stop input
Start / stop input for HA (J01: In place / Removed =
Pulse input (factory default) / Step input)
2
3
Remote controller disabling
input
Enables / disables start / stop control via remote
controller
4
In-operation output
ON during operation (HA answerback signal)
5
DC12 V (COM)
6
Alarm output
ON while alarm ON
Optional
output
CN60
1
DC12 V (COM)
2
Defrosting output
ON while outdoor unit defrosted
3
Thermostat ON output
ON while real thermostat ON (compressor ON)
4
Cooling output
ON while air conditioner in cooling or related operation
(COOL, DRY or cooling under AUTO mode)
5
Heating output
ON while air conditioner in heating operation (HEAT or
heating under AUTO mode)
6
Fan output
ON while indoor fan ON
External error
input
CN80
1
DC12 V (COM)
Generates test code L30 and automatically shuts down
air conditioner (only if condition persists
for 1 minute)
2
DC12 V (COM)
3
External error input
CHK
Operation
check
CN71
1
Check mode input
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)
2
0 V
0 V
DISP
Display mode
CN72
1
Display mode input
Product display mode - Communication just between
indoor unit and remote controller enabled (upon turning
on of power) Timer short-circuited out (always)
2
0 V
EXCT
Demand
CN73
1
Demand input
Imposes thermostat OFF on indoor unit
2
0 V (COM)
(via interlock wiring)
FILE NO. SVM-18039
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Summary of Contents for RAV-RM1101BTP Series
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Page 19: ...3 WIRING DIAGRAM FILE NO SVM 18039 19 ...
Page 34: ...5 3 Indoor Print Circuit Board MCC 1631 FILE NO SVM 18039 34 ...
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