Servicing
5
Installation and maintenance instructions for wall-mounted condensing gas boiler 600 - 11S/19S/24S/24C • 02/2006
47
Subject to modifications resulting from technical improvements!
Buderus • http://www.buderus-domestic.co.uk
5.3.5
Replacing the fan
z
Shut the gas valve.
z
Disconnect the system from the power supply.
z
Disconnect the fan, using the plug and socket from the
power supply (fig. 58, item 1), loosen the UBA control line
at the fan (fig. 58, item 2) and the gas burner fitting (fig. 58,
item 3).
z
Loosen the union nut (fig. 58, item 4) on the gas burner
fitting.
z
Push the safety plate out of the way (fig. 59, item 1).
z
Turn air suction tube and pull off from below.
z
Swivel the gas combination unit forward (fig. 60, item 1)
z
Remove the gas combination unit from its bayonet
connector and pull upwards to detach (fig. 60, item 2).
Fig. 58 Replacing the fan on the 600 Series:
loosen plug and union nut
1
2
3
4
Fig. 59 Replacing the fan on the 600 Series:
remove the air suction tube
1
Fig. 60 Replacing the fan on the 600 Series:
remove the gas connection unit
1
2