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15.0 Illustrated Wiring Diagram
47
© Baxi Heating UK Ltd 2007
- brown
- black
- blue
- red
br
bk
b
r
- green
- green / yellow
- white
g
g/y
w
Optional Timers
Domestic Hot Water
Temperature Sensor
Reset Selector Switch
Control PCB
A1 A2 A3
A4
A5
F2
1
bk
bk
r
r
g
g
g
r
g
r
212 3
3
41
1
2
3
4
5
6
10
9
8
7
6
5
4
3
2
1
2344
5
5
6789
Central Heating
Temperature Sensor
Fan
Gas Valve
Overheat Stat
Hydraulic Differential
Pressure Switch
Domestic Hot Water Flow
Priority Pressure Switch
Air Pressure
Switch
Flame
Mains Input
Fuse
Link
g/y
g/y
b
br
bk
br
b
bk
Sensing
Electrode
Pump
bb
bbk b b b
br
br
b
b
r
bk bkbr
bkbrbr
br
Flue Stat
1
2
3
4
Condensate
Trap
g/y
g/y