Potterton Promax HE Store 90 Litres Installation & Servicing Instructions Manual page 41

Cylinder
Thermistor
Water Pressure
Switch
g
g
b
b
X501
1
X1
Flame
r
Sensing
br
Electrode
Mains Input
o
br
b
Reset Selector Switch
g
br - brown
g/y
bk - black
r
b - blue
o
w - white
© Baxi Heating UK Ltd 2006
Flow
Thermistor
r
r
X400
9 8 7 6 5 4 3 2 1
b w
Control PCB
2 1 2 3 4 5
X2
b
br
b
br
b
L
Link
g/y
b
br
br
b
r
- green
- green / yellow
- red
- orange
b
b
Overheat Stat
b
b
Flue Thermistor
X401
10 9 8 7 6 5 4 3 2 1
w
b
1 2 3 4 5 6 7 8 9
X3
r o
br
b
br
b
br
bk
b
Spark
Generator
N
b
b
a
br
g
w
Ignition
Electrode
o
1
4
2
5
3
bk
1
2
br
g
g/y
b
b
br
br
o
b
o
Pump
br
bk
b
Gas Valve
Fan
Timer
br
b
Diverter Valve
Fig. 28
41