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12.3 Wiring Diagram
M
3WAY-Valve
Ignitor
BURNER
64
Appendices
8 6 4 2
7 5 3 1
PUMP
1
2
3
4
5
6
1
CN4
2
3
4
5
6
7
CN4
1
2
CN13
CN2
CN8
CN1
1
2 3 4
1
2
1
Flame
Detector
Low water
pressure S/W
P.E
GAS
BLDC FAN
Valve
CN5
3
2 1
7
6
5 4 4
CN14
1
2
8
3
7
4
6
5
5
6
4
7
3
8
2
9
1
10
PIN1
11
CN9
CN7
1
1
1
1
1
2 3 4
5
6 7 8
9
0
1
2
CN6
1
2 3 4
5
6 7 8
WPS
Outdoor Sensor
6
5
4
3
2
DHW_INPUT
1
CN12
8
7
6
5
M
4
3
2
1
CN11
8
7
6
5
M
4
3
2
1
CN10
Dip s/w
2 3 4
5
(4pin)
CN15
Dip s/w
(8pin)
1
1
1
1
1
9
0
1
2
3
4
Flow
HTL
Sensor
OT
R/C
WAV V/V
WAV,MIX V/V
applies to
NCB500 Combi
MIX V/V
EXT. Contact
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