Electrical - Baxi Combi 133 HE Plus Installation & Servicing Instructions Manual

Earths not shown to aid
clarity of diagram
Mains Input
L N
Filter
br
PCB
gy
gy
gy
g/y
gy
325 Vdc
DHW CH
DC Fan
Flow Flow
Switch Switch
© Baxi Heating UK Limited 2005
g/y
g/y
b
w g br
b
b
r
Return Flow
Thermistor Thermistor

9.0 Electrical

9.1
r
b
br
b
r
br
bk
r
br
L N
Pump
Diverter
Valve
Schematic Wiring Diagram
External Controls
Connection
r
o
bk
r
b
b
bk
Flow
Overheat
Thermostat
Gas w
Valve
bk
bk
Condensate
Trap
Fan
Overheat
Thermostat
Key To Wiring Colours
b - Blue r - Red
bk - Black g - Green
gy - Grey
g/y- Green/Yellow
w - White o - Orange
br - Brown y - Yellow
op - Opaque
op
g/y
w
Flame
Detection Spark
Electrode Electrode
g/y
29