Technical data

40
15.0 Electrical
© Baxi Heating UK Ltd 2012
15.1 Illustrated Wiring Diagram
X23 X37 X36
X22 X20 X24
X10
X11
X12
X13
X1
X2
Flue Sensor
Heating
Return
Sensor
Heating
Flow
Sensor
Spark
Ignition
Electrode
Gas
Valve
Fan
Safety
Thermostat
Hydraulic
Pressure
Switch
Pump
X3
b
b
r
r
r
bk
g
b
g
br
w
b g
br
bk
b
b
br
br
b
b
br
b
b
bk
g/y
b
br
bk
gr
g/y
g/y
g/y
g/y
g/y
Flame
Sensing
Electrode
b
w
bk
bk
br
b
M2
Low Voltage
External Control
Connection
Terminal
Strip
Key To Wiring Colours
b - Blue
bk - Black
br - Brown
w - White
gr - Grey
r- Red
g - Green
g/y - Green/Yellow
y - Yellow