Technical data

Installation and servicing instructions for wall-mounted condensing gas boiler Buderus 600 - 11R/19R/24R • 02/2006 63
Subject to modifications resulting from technical improvements! Buderus • http://www.buderus-domestic.co.uk
Notes
6 Conversion to another type of gas
Switch off the heating boiler
z Disconnect the system from the power supply.
z Close the gas service valve.
z Loosen the 4 crosshead screws on the ventilation cover
(fig. 69).
z Remove the ventilation cover.
z Loosen union nut on gas valve assembly (fig. 70,
item 4).
z Release plug-in connection of fan power lead (fig. 70,
item 1), burner-control unit fan control lead (fig. 70,
item 2) and gas-burner assembly (fig. 70, item 3).
z Push safety plate out of way (fig. 71, item 1).
z Turn air silencer tube and pull off from below.
Fig. 69 Unscrew ventilation cover
WARNING!
WARNING!
Work on components in contact with gas
must only be carried out by a registered
CORGI engineer.
Fig. 70 Loosen the union nut and remove the cable
1
2
3
4
Fig. 71 Remove safety plate