Electrical Diagram - Main Eco Compact System 15 Installation And Service Manual

3.4

Electrical diagram

Fig.5 Electrical wiring diagram
M
M1
E
N
L
L
K
Key Description
A Gas valve
C Flue sensor
D Hydraulic pressure switch
E Heating return sensor
F Heating flow sensor
H M2 low voltage external control connection P
I Spark ignition electrode
A
N
r
b g b
r
br
br bk
b
X23 X37
X3
bk
br
X10
g/y
b
X13
b
br
b
X11
br
g/y
X12
X2
g/y g/y
g/y
g/y
O
bk — black
r — red
C
g g
g
g
b
b r
g
b
r
X36
X22 X20
P
X1
I
br — brown
w — while
Key Description
K Pump
L Terminal strip
M Fan
N Safety thermostat
O Earth point on boiler chassis
Printed circuit board (PCB)
3 Technical specifications
D
E
g
g
br
br
X24
bk
bk
X31
b — blue
g/y — green/
yellow
F
10
M2
9
8
7
6
H
5
4
3
2
1
PN-0000342
g — green
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