23
xtra
-
Installation & Servicing
INSTALLATION
25 PICTORIAL WIRING DIAGRAM (SLAVE BOILER)
65
X1
4321
12
X2
3456
789
10
11
1
2
12
X3/4
X5
34
1234
56
789
10
11
1
2
HT
MCBA5407D
X8
X10
X7
Damper
Fuse
MAINS IN
T
ransformer
SUPPRESSOR
AM3
DISPLA
Y
1
2
3
4
5
6
7
8
910
11
1213
1415
16
SLA
VE
OT
CENTRE
Connection to
Master Wiring
Centre
1
TTL
g
GV
PWM
+
ELN
TACH
APS1
NTC5
NTC7
NTC1
NTC2
PW
b
b
br
bk
bk
w
w
g
v
bk
bk
b
r
pk
y
w
v
r
pk
w
br
br
b
br
br
3
2
1
y/g
y/g
y/g
LEGEND
NTC1
NTC2
NTC5
NTC7
PW
R1
R2
RY
1
RY
2
GV
BS
A
PS1
KEY
-
-
-
-
-
-
-
-
-
-
-
-
Flow thermistor
Return thermistor
Flue thermistor
Heat exchanger thermistor
W
a
ter pressure switch
Relay 1 230V
AC coil
Relay 2 230V
AC coil
Relay 1 Switch (signal)
Relay 2 Switch (signal)
Gas valve
Burner switch
Air pressure switch
w
y/g
g
or
v
-
-
-
-
-
white
yellow/green
grey
orange
violet
b
bk
br
r
pk
y
-
-
-
-
-
-
blue
black
brown
red
pink
yellow
INST
ALLA
TION