6-4. Optional Connector Specifications of Indoor P.C. Board
Function
Fan output
HA
CHK operation check
DISP exhibition mode
EXCT demand
Connector
No.
CN32
CN61
CN71
CN72
CN73
Pin
No.
�
�
�
�
�
�
�
�
�
�
�
�
�
�
Specifications
DC12V
Output
ON/OFF input
0V (COM)
Main prohibition input
Operation output
DC12V (COM)
Alarm output
Check mode input
0V
Display mode input
0V
Demand input
0V
Remarks
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
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
Input for float SW
CN3
4
�
�
DC12V
NC
Normal when between ~
short-circuit but
abnormal when open-circuit. (Check code
"P10"appears)
�
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
- 35 -