9.
SERVICING THE BOILER
The appliance and the system should be checked by a qualified registered
person and cleaned if necessary
.
1.
Switch off the appliance using the on/off key on the operating panel.
2.
Switch off the electrical supply to the appliance.
3.
Close the gas tap.
4.
Unscrew the two sunken screws left and right at the front underneath the
appliance and lift/remove the front panel.
5.
Wait until the appliance and the burner have cooled down.
6.
Remove the connectors from the gas valve and the fan.
7.
Disconnect the coupling beneath the gas valve.
8.
Unscrew the 10 socket screws from the front cover and remove this forwards
complete with gas valve and fan.
While removing the front cover do not hold this at the gas valve and/or the
fan.
Be careful not to damage the burner and the fan while removing the front
plate.
The burner does not need any maintenance.
9.
Never clean the burner with a brush or compressed air. This causes damage
to the metal fibre.
10.
Remove the baffles that have been placed crosswise in the fins of the heat
exchanger.
11.
If necessary, clean the baffles and the fins of the heat exchanger from top to
bottom with a brush or with compressed air.
12.
If necessary, clean the bottom side of the heat exchanger and the
condensate discharge at the bottom of the flue discharge behind the heat
exchanger.
13.
Clean the siphon and the condensate discharge pipe.
14.
After cleaning, fill the siphon with water.
15.
Replace the baffles in the heat exchanger.
16.
Check the silicone gasket of the front cover for damage (hair)cracks and/or
discolouring and replace if necessary.
17.
Mount the front cover to the heat exchanger and attach this with the socket
screws with spring washers. Crosswise tighten the socket screws evenly by
hand.
Make sure that the silicon gasket is well placed around the front cover.
18.
Mount the gas coupling below the gas valve.
19.
Check the sealing ring for damage and replace if necessary.
20.
Fit the connectors on the gas valve and the fan.
21.
Open the gas tap and check the gas couplings below the gas valve and on
the mounting bracket for leaks.
22.
Check the CH and the water pipes for leaks.
23.
Switch on the electrical supply to the appliance
24.
Put the appliance into operation.
25.
Check the front cover and the connection of the fan to the front cover for
leaks.
26.
Check the gas-air control. See § 7.9.
27.
Fit the cover and screw it left and right at the bottom of the appliance.
28.
Check the heating and the hot water supply.
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