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13.0 ELECTRICAL
Publication No. 5111811
Optional Timers
Pump
Gas Valve
Air Pressure
Switch
Safety Thermostat
Pressure Switch
Hydraulic Differential
Temperature Sensor
Selector Switch
On/Off/Reset
Fan
Control PCB
Flame
Electrode
Sensing
Microswitch
3-Way Valve
M2
M5
M4
M1
M3
FA2
15
16
14
13
12
20
19
18
17
11
10
39
38
37
36
35
9
7
6
5
4
3
2
1
8
Mains Input
Fuse
Link
g/y
g/y
b
br
b
b
b
b
br
br
br
br
r
bk
bk
br
br
b
r
r
r
r
b
b
b
br
b
1
bk
bk
bk
b
bk
bk
br
2
3
4
Flue Thermostat
Condensate
Trap
g/y
g/y
M7
bk
bk
28
29
30
31
32
27
42
43
44
br - brown
bk - black
b - blue
r - red
y - yellow
g/y - green / yellow
w - white
gr - grey
13.1 Illustrated Wiring Diagram