Intergas Compact HRE 18 SB - 13 Electrical Diagram

Intergas Heating Ltd 45
13 ELECTRICAL DIAGRAM
13.1 Electrical diagram HRE 18 SB, 24 SB & 30 SB
A
Earth connections heat-exchanger
F
Fuse (2A T)
P1
CH pump
S7
CH water pressure sensor
B
Spark plug cover
G
Gas valve + ignition unit
R
Resistance
V
Fan
C Boiler controller I Ionisation-/ ignition probe S1 Flow sensor
E Earth connections boiler controller M
Main voltage S2 Return sensor
Connector X4
24V=
4-5 External saving switch (remove connection)
6-7
On/off room thermostat (0,1A-24Vdc) and/or frost thermostat (remove connection 6-7)
8-9
External sensor (12k ohm / 25°C)
11-12
OpenTherm thermostat (remove connection 6-7)
Connector X2
230V ~
1-3 Room thermostat 230 AC (1=Switch live, 3=Live(fused)
1-3
Frost thermostat 230 AC (1=Switch live, 3=Live(fused)
2-4
Mains (2=Live (brown), 4=Neutral (blue))
7-8
CV-pump (8=L (brown), 7=N (blue)
Connector X5
Computer interface