Buderus 600 - 11R Installation And Servicing Instructions page 64

6 Conversion to another type of gas
Swivel the gas-air unit forwards (fig. 72, item 1).
Pull the gas-air unit up and out of the bayonet
connector (fig. 72, item 2) and remove via the front of
the unit.
Replacing a gas nozzle
WARNING!
Conversion to another gas type is
implemented by installing/removing a gas
WARNING!
nozzle (fig. 73, item 3) of the appropriate
gas nozzle diameter (table 7).
Undo the three screws (fig. 73, item 2) on the long
side of the gas fitting.
Remove the gas nozzle and insert the correct gas
nozzle for the new gas type.
Insert new seal (fig. 73, item 4).
Remount all components in the reverse sequence.
Cover stickers (fig. 74, item 1) with the new stickers
(2 pieces, included in conversion kit).
Starting up
Start up the appliance following the procedure
described in the mounting and maintenance instruc-
tions.
Include all seal areas concerned during mounting in
the gas-tightness check when in operation.
Refit all covers.
Buderus • http://www.buderus-domestic.co.uk
64 Installation and servicing instructions for wall-mounted condensing gas boiler Buderus 600 - 11R/19R/24R • 02/2006
s
2
Fig. 72 Remove the gas-air unit
Gas nozzles Ø [mm]
Type of gas
supply
11R
Natural gas H (G20) 5.55
LPG 3.40
table 7 Gas nozzle diameter
Fig. 73 Replacing a gas nozzle
1
Fig. 74 Place new stickers
Subject to modifications resulting from technical improvements!
1
Venturi
tubes
19R/24R
6.5 Standard
4.15 Standard
1