25
X13
X15
X1
X9
X6
X5
X4
X3
X8
X7
X10
X0
X2
X6
X0
L N
X1
4 5 1 3 2
X2
1 2 3 4 5
X3
1 2 3 4
X4
1 2 3 4
X8
1 2 3 4
X9
1 2 3 4 5 6 7 8
X13
4 1
3
6 8
X15
X5
1 2 3
1
2
Power supply
230V, 50Hz
L
1 2 3
GCV
Ignition
X81
X21
X22
1 5
N
BR
GN/YW
GN/YW
BK
BR
BL
WH
GY
COMM.
NC.
NO.
WH
GN
RD
WH
BL
WH
BK
BK
YW
D
H
W
se
ns
or
/th
er
m
os
ta
t
B
lo
ck
in
g
up
en
tr
y
C
om
pe
ns
at
or
/O
pe
n
T
he
rm
T
S
Os
BR
BL
X7
1 2 3
1 10
1 10
1 5 4 2
FAN
HLT
Rs
As
1 2
1 2
1 2
T
X124
X123
X121
BK
BLACK
BL
BLUE
BR
BROWN
GN
GREEN
GN/YW GREEN/YELLOW
GY
GRAY
RD
RED
WH
WHITE
YW
YELLOW
WIRE COLOURS
As
Flow sensor
CP
Circulation pump
GCV
Gas combination valve
HLT
High limit thermostat
Os
Outdoor sensor
Rs
Return sensor
- - - -
Will not be supplied or wired.
BOILER COMPONENTS
59970LTGBW7H013b
2.9 Wiring diagram
59970LTGBW7H013
