Wolf CGG-2, Instructions Manual, Page: 3 / 12

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Wolf GmbH · Postfach 1380 · 84048 Mainburg · Tel. 08751/74-0 · Fax 08751/741600 · Internet: www.wolf-heiztechnik.de
The conversion to other gas types is made in four steps:
Carry out all steps, otherwise there is a risk of incorrect function or system
damage.
NB
- Continue with adjusting the control unit subject to gas type
- Adjust the nozzle pressure
- Identification:
Complete the label and affix next to the type plate
For this, obtain relevant details from the installation and maintenance instructions.
Nozzle replacement
- 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. turnbuckle,
undo the lower casing lid and unhook at the top.
- Close the gas shut-off valve, observe all safety instructions
and unscrew the gas fittings at the gas manifold
- Remove fixing screws
- Pull out the gas manifold
- Reassemble the boiler with new gas manifold in reverse
order.
Number of nozzles, nozzle size
Boiler Number of nozzles Natural gas H LPG / propane
Nozzle ID Nozzle Ø mm Nozzle ID Nozzle Ø mm
CGU-2(K) 18 090 0,90 060 0,60
CGU-2(K) 24 090 0,90 060 0,60
Number of nozzles, nozzle size
Boiler Number of nozzles Natural gas H LPG / propane - butane/propane
Nozzle ID Nozzle Ø mm Nozzle ID Nozzle Ø mm
CGG-2(K) 18 087 0,87
16 x 057
2 x 060
16 x 0,57
2 x 0,60
CGG-2(K) 24 087 0,87
22 x 057
2 x 060
22 x 0,57
2 x 0,60
Instructions for conversion to other
gas types CGU-2(K) / CGG-2(K)
Fixing screws
Gas fitting
Gas manifold
1. Change of gas manifold
2. Adjusting the control unit after converting the gas type
3. Checking and adjusting the nozzle pressure
4. Identification
Subject to technical modifications.