Changing to another type of gas
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Installation and maintenance instructions for wall-mounted condensing gas boiler 600 - 11S/19S/24S/24C • 02/2006
59
Subject to modifications resulting from technical improvements!
Buderus • http://www.buderus-domestic.co.uk
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Changing to another type of gas
Switch off the heating boiler
z
Disconnect the system from the power supply.
z
Close the gas shutoff valve.
z
Loosen the fixing screw and remove cover.
z
Open snap locks (fig. 89, item 1) and remove combustion
chamber cover.
z
Loosen union nut on gas valve assembly (fig. 90, item 4).
z
Release plug-in connection of fan power lead (fig. 90,
item 1), burner-control unit fan control lead (fig. 90, item 2)
and gas-burner assembly (fig. 90, item 3).
z
Push safety plate out of way (fig. 91, item 1).
z
Turn air suction tube and pull off from below.
Fig. 89 Open snap locks
1
1
WARNING!
Work on components in contact with gas must
only be carried out by a registered CORGI
engineer.
Fig. 90 Loosen the union nut and remove the cable
Fig. 91 Remove safety plate