Technical data

64 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 gas6

sz 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

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!

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