Baxi Combi 630 - Electrical Diagram

3.4 Electrical diagram
Fig.4 Electrical wiring diagram
X23 X37 X36
X22 X20 X24
X10
X11
X12
X13
X1
X2
X3
b
w
r
g g
g
r
r
g
b
g
b g
br
bk
b
b
g
g
r
r
br
b
g/y
bk
r
g/y
g/y
g/y
g/y
br
br
w
X31
br
br
bk
bk
PN-0000341
B
C
D
E
F
G
H
I
J
K
L
N
M
b
br
b
b
O
A
P
1
2
5
6
7
8
9
10
3
4
L
N
E
M1
M2
b
bk
bk — black br — brown b — blue g — green
r — red w — while g/y — green/
yellow
Key Description Key Description
A Gas valve I Spark ignition electrode
B Hall effect sensor J Diverter valve motor
C Flue sensor K Pump
D Hydraulic pressure switch L Terminal strip
E Heating return sensor M Fan
F Heating flow sensor N Safety thermostat
G DHW NTC sensor O Earth point on boiler chassis
H M2 low voltage external control connection P Printed circuit board (PCB)
3 Technical specifications
18 7679306 - 1 - 10082017