Intergas HRE 36/40 - Electrical Diagrams

Intergas Heating Ltd 46
13 ELECTRICAL DIAGRAM
13.1 Electrical diagram HRE 24/18, 28/24 & 36/30
A
Earth connections heat-exchanger
F
Fuse (2A T)
P1
CH pump
S3
DHW sensor
B
Spark plug cover
G
Gas valve + ignition unit
R
Resistance
S5
Flow switch
C Boiler controller I Ionisation-/ ignition probe S1 Flow sensor S7 CH water pressure sensor
E Earth connections boiler controller M
Main voltage S2 Return sensor V Fan
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 = Live (brown), 7 = Neutral (blue)
3-5-6
Shut-off valve, floor heating (3 = Live (brown), 5 = Switch (black), 6 = Neutral (blue) (VC4013 Honeywell
230V~)
Connector X5
Computer interface