Wolf CGU-2 - Instructions for Conversion to Other Gas Types; Change of Gas Manifold; Adjusting Control Unit After Gas Type Conversion; Checking and Adjusting Nozzle Pressure

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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
- Identication:
Complete the label and afx 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 red 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 ttings at the gas manifold
- Remove xing 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 tting
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. Identication
Subject to technical modications.