Strebel S-CBX 105, Руководство по установке, эксплуатации и техническому обслуживанию

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18.4 Conversion from Natural gas to Propane
Adjustment of the boiler to a different gas type should be performed by a certified technician.
Use only parts/conversion kits obtained from Strebel Ltd and intended to be used with this particular boiler.
Every conversion kit is provided with instructions how to assemble the kit to the boiler.
Converting the boiler to propane is done by placing a propane orifice between gas valve and venturi. By using the
correct restriction ring (see table below), the measured CO
2
(O
2
) percentage in the flue gas will already be close
to the desired value.
Secondly, parameter 138 will need to be changed on the S-CBX boiler to complete the conversion from natural
gas to propane (LPG).
There is one main PCB board that does the S-CBX 85 & 105 on both natural gas and LPG supply and one board
that does the S-CBX 125 & 155 on both natural gas and LPG. Detailed below.
Option 2:
Model Natural Gas Propane
S-CBX 85 PCB 1 PCB 1
S-CBX 105 PCB 1 PCB 1
S-CBX 125 PCB 2 PCB 2
S-CBX 155 PCB 2 PCB 2
PCB 1 – Set for 85 and 105
Model Parameter 138
S-CBX 85 – Natural gas 50
S-CBX 85 – Propane (LPG) 51
S-CBX 105 – Natural gas 52
S-CBX 105 – Propane (LPG) 53
PCB 2 – Set for 125 and 155
Model Parameter 138
S-CBX 125 – Natural gas 50
S-CBX 125 – Propane (LPG) 51
S-CBX 155 – Natural gas 52
S-CBX 155 – Propane (LPG) 53
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Please ensure the S-CBX boiler is clearly labelled if operating on propane supply!
WARNING
WARNING