6
2008-03
Vedolux 37
Electrical connection
Wiring diagram and control panel
Installation must be in accordance with the High Current Regulations
[Starkströmsföreskrifterna], under the supervision of an authorised elec
-
trical installer.
Electrical connection
The boiler is connected directly to the mains (no plug) using a
rubber cable, via an all-pole circuit breaker with a contact gap
of at least 3 mm.
The electrical connections are at the rear of the boiler, in the
form of three quick connectors:
15. Mains connection, 230V~. Cable with quick connectors supplied.
16. Fan.
17. Circulation pump, for charging the accumulator system.
Supply
Fan
Circulation pump
YELLOW/GREEN
YELLOW/GREEN
BLUE
BLACK
BLACK
BLUE
15
16
17
15. Supply connection,
3-pole connector.
a. cable part, socket.
b. chassis part, plug.
16. Fan connection,
5-pole connector.
a. cable part, plug.
b. chassis part, socket.
17. Connection for accumulator system
charging pump,
3-pole connector.
a. cable part, plug.
b. chassis part, socket.
18. Terminal block for internal earth
connections.
19. Start capacitor for fan motor.
20. Main switch.
21 Thermostat for fan and charging
pump.
22. Fan start when the boiler is cold.
23. Relay.
25
15a
16a
17a
18
19
20
21
22
23
24
26
15b
17b
16b
20
22
21
25
26
27
28
24. Time relay, delayed cutoff.
25. Overheating protection.
26. Indicator showing triggered over-
heating protection.
27. Thermometer, displays the boiler
temperature.
28. Pressure gauge showing the water
pressure in the heating system.
Function
Start with the boiler cold.
Set the main switch, 20, to the ON position – the green area
must be visible.
Set the thermostat, “FAN STOP”, 21, to 120°C. The thermostat
detects the flue gas temperature.
Press “FAN START”, 22, the time relay, 24, is activated and the
fan starts.
When the time set for the time relay, 30 minutes, is reached, the
contact changes, which means that the fan and the charging
pump for the accumulator system are controlled by the thermo-
stat, 21.
When the firewood is burnt out and the flue gas temperature
falls below the value set for the thermostat, 21, the fan and
charging pump stop running.
If the boiler temperature exceeds 110°C, the overheating pro
-
tection is triggered. The fan stops running and the charging
pump continues to operate.
If the overheating protection, 25, is triggered, the “ALARM” indi-
cator , 26, is lit. The relay, 23, prevents the time relay activating
when the overheating protection is triggered.
To reset the overheating protection, press “RESET”, 25, on the
boiler control panel. It is not possible to reset the system until
the boiler temperature has dropped below 95°C.
