1.3 Relay board wiring
Number
7
CN2
COM
1 TROUBLE1
2 TROUBLE2
3 TROUBLE3
4 TROUBLE4
5 TROUBLE5
6 TROUBLE6
7 TROUBLE7
8 TROUBLE8
9 TROUBLE9
10 TROUBLE10
11 TROUBLE11
12 TROUBLE12
13 TROUBLE13
14 TROUBLE14
15 TROUBLE15
16 TROUBLE16
17 H.DAMP.
OP
18 H.DAMP.
CL
19 R.DAMP.
OP
20 R.DAMP.
CL
21 L.DAMP.
OP
22 L.DAMP.
CL
23 RUN
24 STOP
Number
CN3
Number
Back side of product
COM
1
H.DUMP. OP
2
H.DUMP. CL
3
R.DUMP. OP
4
R.DUMP. CL
5
L.DUMP. OP
6
L.DUMP. CL
7
H.FAN
8
R.FAN
9
L.FAN
10
TS1
11
TS2
12
CONT
13
REF.1
14
REF.2
15
N2 GAS
16
WINDOW
17
DEFROST
18
TROUBLE
19
RUN
20
END
21
EXHAUST
22
NONE
23
L.CONTORL
24
H.CONTORL
1 (+)
2
H.ROOM CONV
(-)
-2~3.2VDC
3 (+)
4
L.ROOM CONV
(-)
-2~3.2VDC
5 (+)
6
T.ROOM CONV
(-)
-2~3.2VDC
7
8
9
NC
10 (+)
11
H. ROOM
(-)
TEMP(T)
12 (+)
13 (-)
L. ROOM
TEMP(T)
14 (+)
15 (-)
TEST ROOM
TEMP(T)
16 (+)
17 (-)
REF.
TEMP(T)
18
19
After adjust TC, it’s short
in a short bar.
20
NC
