MAINTENANCE
6 720 648 726 (2011/07)
64
13 MAINTENANCE
B
Prepare the system for maintenance as described in
the chapter on Inspection (
Æ
13.1 REMOVING THE BOILER DOOR
If the boiler door cannot be fully opened, it may be
necessary to remove the door for inspection and
maintenance activities.
Proceed as follows:
B
Unscrew the control panel from the boiler door and
hang it on the boiler frame (
Æ
fig. 120 "Undoing the
B
Unscrew the bolt from the left-hand top hinge of the
boiler door and remove it together with the washer.
B
Slightly lift the door and pull it from the hinge. Put the
door upright in a safe position and make sure that it
cannot fall over.
Fig. 104 Removing the boiler door
13.2 CLEANING THE HEAT EXCHANGER,
BURNER AND CONDENSATE TRAP
The boiler has a self-cleaning coating.
13.2.1 REMOVING THE GAS VALVE
B
Undo the gas fitting screw connection [1] and pull the
4 connectors [2] from the gas valve.
Fig. 105 Undoing the connections to the gas fitting
The cover over the electrical connections
does not have to be removed from the
boiler.
6 720 648 726-104.1TD
WARNING:
Damage to the installation due
to short circuits.
B
Do not spray the detergent onto the
burner, the glow ignitor, the ionisation
electrode or other electrical components.
GB162-65
GB162-80/100
6 720 648 726-105.1TD
Содержание GB162-100
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