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7-4. Optional Onboard Connector Specifications
Function
Terminating resistor
Remote controller A/B
Ventilation output
HA
Option output
External
alarm input
CHK Operation
check
DISP DISP mode
EXCT Demand
Connector No.
SW01
CN32
CN61
CN60
CN80
CN71
CN72
CN73
Pin No.
Bit 1
Bit 2
A
B
A
B
C
D
E
F
A
B
C
D
E
F
A
B
C
A
B
A
B
A
B
Specification
OFF: No terminating resistor
ON: Terminating resistor provided
OFF: R/C A, ON: R/C B
DC12V
Output
ON/OFF input
OV (COM)
R/C prohibition input
Operation ON output
DC12V (COM)
Alarm output
DC12V (COM)
Defrost output
Thermo sensor ON output
COOL output
HEAT output
FAN output
DC12V (COM)
DC12V (COM)
Filter/option/external alarm input
Check mode input
OV
Display mode input
OV
Demand input
OV
Description
Factory setting OFF: No terminating resistor ON for one unit when performing
central control by custom air conditioner only.
Factory setting OFF: Remote controller A
Factory setting: Interlocking with indoor unit operation ON/OFF
*
Single operation setting is performed with VENT button on the remote controller
(DN=31)
.
HA ON/OFF input (J01: input/no input=pulse (factory setting) / static input
changeover)
Enables/disables operation OFF by remote controller using the R/C prohibition
input.
ON during operation (answerback of HA)
ON during alarm
ON while outdoor unit is defrosting
ON when thermo sensor is ON (compressor ON)
ON in cooling mode (COOL/DRY/auto cooling)
ON in heating mode (HEAT/auto heating)
ON while indoor unit fan is ON
Factory setting: External alarm input setting (DN: 2A=2)
Indicates alarm code “L30” when an alarm continues for one minute and
performs forcible operation OFF.
(DN: 2A=1) Performs option alarm input control (indication of unit protection
attached externally).
* Remote control performs setting of option alarm input controller.
Used for checking indoor unit operation. (Outputs specified operations such as indoor
unit fan speed H, without communication with outdoor unit or remote controller.)
DISP mode enables communication only between indoor unit and remote
controller. (at power on)
Timer short-circuited (always)
Turns OFF indoor unit thermo sensor forcibly.
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