Installation
&
Servicing
instructions
AT
AG
A200SOV
19
7.2 Electrical diagram
K0
1
K0
1
K0
1
1.
EX
TERNAL SAFET
Y C
ONT
A
CT*
2.
IGNITION
3.
GAS
VAL
VE
4.
IONISA
TION
5.
EAR
TH
8.
W
ATER PRESSURE
SENSOR
P1
10.
F
AN 230V
14.
FL
O
W SENSOR
T1
15.
RETURN SENSOR
T2
16.
FL
UE GAS SENSOR
T5
OPTION
T 3,15 H
T 3,15 H
19.
FUSES
250V
20.
SER
VICE C
ONNECT
OR
N
N
N
N
L
L
N
L
L
L
X1
X2
X3
X4
X8
X9
X11
X12
X13
X6
X7
X5
230V
FUSE
T3,15AH 250V
SL
N
L
1 2 3 4 5
8G.44.50.00
21.
L
N
230V A
C
SY
STEM
C
ONTR
OLS
DOUBLE POLE
ISOL
AT
OR
FUSE
INST
ALL
ATION
BOILER
JUNCTION
BO
X
CIR
CUL
ATION
PUMP
Figure 10
1.
External safety contact
2.
Ignition
3.
Gas valve
4.
Ionisation
5.
Earth
6.
Pump
7.
Main power supply 230V
8.
W
ater pressure sensor
10.
Fan 230V
13.
Option
14.
Flow sensor
15.
Return sensor
16.
Flue gas sensor
19.
Fuses
20.
Service connector
21.
External switched live
connection