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