Installation and operating instruction
Gas condensing unit WTC-GB 15-B Compact and WTC-GB 25-B Compact
9 Servicing
83309302 1/2018-05 La
124-196
9.1.5 Cleaning the heat exchanger
Observe notes on servicing [ch. 9.1.1].
Remove burner surface [ch. 9.1.3].
Remove electrodes [ch. 9.1.4].
Heat exchanger cleaning kit (accessory) required.
Insert cover plate
1
from cleaning kit.
Heat exchanger is protected against falling dirt.
Clean combustion chamber with brush from cleaning kit and vacuum.
Remove cover plate.
1
1
Remove disc nuts from service cover
3
.
Remove service cover.
Remove gasket
1
and clean seal groove
2
.
Clean heat exchanger with cleaning blades and brush from cleaning kit.
Vacuum out any dislodged dirt.
Clean sealing surfaces
4
.
1
2
3
4
4 Nm