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Conversion to other gas types
The conversion to other gas types is made in four steps: Nozzle
change, adjusting the control unit, checking the nozzle
pressure and possible adjustment and identification of the
conversion on the boiler.
- Reassemble the boiler in reverse order.
- Continue with adjusting the control unit.
Boiler
No. of nozzles
Natural gas
LPG butane/propane
Nozzle ID
Nozzle Ø mm
Nozzle ID
Nozzle Ø mm
CGG-1K-24
12
135
1.35
080
0.80
CGG-1K-28
14
135
1.35
080
0.80
Table: No. of nozzles, nozzle size
Fixing screws
1. Nozzle change:
- Switch OFF the boiler at the ON / OFF switch and isolate it
from the power supply.
- Remove the casing lid of the gas fired boiler. For this, pivot
the control unit lid down, hook in the r.h. and l.h. turn buckle,
undo the bottom of the casing lid and unhook at the top.
- Push the retaining clip of the front cover up or down out of the
way and remove the front cover.
- After undoing both fixing screws, remove the front wall of the
combustion chamber.
- Pull the cable from the ignition and the ionisation electrodes.
- Remove the four burner retaining screws (slotted screws;
Philips screw H) and pull out the burner with the air deflector(s).
- Remove all burner nozzles (spanner size 7) from the gas
manifold.
- Insert the new burner nozzles with new copper sealing rings.
