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18
WIRE COLOUR CODE
black ------bk
blue -------b
brown -----br
pink --------pk
yellow------y
orange-----or
green/yellow ---g/y
purple------p
WIRE COLOUR CODE
black ------bk
blue -------b
brown -----br
pink --------pk
yellow------y
orange-----or
green/yellow ---g/y
purple------p
br
b
r
y bk
br
br
br
b
b
g/y
g/y
r
r
b
r
r
b
b b
br
br b
p p
r b
or
b
br
b
b
y
b r
b
b
g/y
bk
br
or br
b
br
L1
L2
N
L3
PUMP
PC
CONNECTIONS
MAINS
SWITCH
FAN
PRESSURE
SENSOR
OPEN
THERM
OTC
MAINS
SUPPLY
230V~50Hz
SPARK
ELECTRODE
FLAME
DETECTION
ELECTRODE
FLUE
THERMISTOR
CH FLOW
THERMISTOR
CH RETURN
THERMISTOR
CVBC
gy
gy
g/y
br b br or
r bkbk y b r b r
br
L
X1
X2
X3
X5
X4
N SL
bk
y
MMI PCB
pk
br
or
br
b b
or
br
REMOVE THIS
LINK TO FIT
EXTERNAL
CONTROLS
Fig.3-19
Illustrated Wiring Diagram