
Converting the boiler to a different gas type
9
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We reserve the right to make any changes due to technical modifications.
Commissioning and maintenance instructions Logano GE434 Gas-fired special boiler • Issue 02/2003
Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de
9.2
Conversion to a different gas type
Only boilers with digital burner control unit can be
converted to LPG. Take the following steps:
!
Isolate the heating system from the mains electrical
supply; to do that, set the ON/OFF switch to "0"
(OFF).
!
Close the gas shut-off valve.
!
Remove the boiler side panels.
!
Replace the main gas nozzle for those used with the
new gas type, and use new gaskets.
!
Check the main gas nozzles by means of their
designation Table 17 and Fig. 25, page 48.
!
Release the pilot gas pipe from the pilot burner and
replace with the pilot burner nozzle for the new gas
type. pilot burner nozzle designation (Table 18).
!
Reinstall the pilot gas pipe.
Gas type
Pilot gas nozzle
designation
Natural gas H (G20), GZ50:
5
Natural gas L (G25), S (G25.1):
5
LPG P propane (G31):
3
LPG B/P butane/propane (G30):
3
Tab. 18 Pilot gas nozzle designation
PLEASE NOTE
To convert the boiler to a different gas
type, proceed strictly in the following
order:
Conversion from natural gas to LPG:
First carry out procedure A, then
procedure B (see the following pages).
Conversion from LPG to natural gas:
First carry out procedure B, then
procedure A (see the following pages).
Содержание Logano GE434
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