Benchmark MAIN - Electrical Diagrams and Fault Finding; Electrical Diagrams and Connections

48
15.0 Electrical
© Baxi Heating UK Ltd 2007
- brown
- black
- blue
- red
br
bk
b
r
- green
- green / yellow
- white
g
g/y
w
Return Heating
Temperature Sensor
Reset Selector Switch
Control PCB
A1 A2
A3
A4
A5
F2
1
bk
bk
r
r
g
g
212 3
3
41
1
2
3
4
5
6
7
8
9
10
234 12
36
454
5
5
6789
Central Heating
NTC Sensor
Fan
Gas Valve
Overheat Stat
Hydraulic Differential
Pressure Switch
Air Pressure
Switch
Flame
Mains Input
Fuse
Link
g/y
g/y
b
br
bk
br
b
bk
r
g
r
g
Sensing
Electrode
Pump
bb
bbbk b
br
br
b
b
r
bkbrbr
Flue Stat
br
g/y
g/y
15.1 Illustrated Wiring Diagram