Baxi 124 Combi - 15.0 Electrical; 15.1 Illustrated Wiring Diagram

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15.0 Electrical
© Baxi Heating UK Ltd 2017
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
Flame
Sensing
Electrode
Gas
Valve
Fan
Safety
Thermostat
Diverter Valve
Motor
Hydraulic
Pressure
Switch
DHW
NTC
Sensor
Pump
Hall Effect
Sensor
X3
b
r
w
b
b
r
r
r
bk
g
b
g
br
w
b g
br
bk
b
b
g
g
b
b
br
b
b
bk
g/y
b
bk
br
g/y
g/y
g/y
M1
Mains Voltage
Terminal Strip
b
br
b
M2
Low Voltage
External Control
Connection
br
b
br
X31
bk
bk
br
br
b
br
1
2
3
4
5
1
2
3
4
5
6
7
8
9
10
Key To Wiring Colours
b - Blue
bk - Black
br - Brown
w - White
gr - Grey
r- Red
g - Green
g/y - Green/Yellow
y - Yellow