120-271F R2
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Note
If converting from Propane to Natural Gas, order the Natural Gas Conversion Parts Kit (IBC Part # P-
301) from your authorized IBC Distributor.
Use the Propane Gas conversion parts kit if the fuel source at the site uses Propane and the modulating boiler has
been set up (factory fire-tested) to operate with Natural Gas. Check the rating plate on the boiler to see which fuel
source the particular boiler has been set up with.
Using this conversion kit, a qualified technician will need to:
1. Perform a fuel conversion.
2. Perform a combustion test.
3. Fill in the information required on the fuel conversion labels, and affix them to the boiler after the conversion
is completed.
Warning
This conversion kit shall be installed by a qualified service agency in accordance with the
manufacturer’s instructions and all applicable codes and requirements of the authority having
jurisdiction. If the information in these instructions is not followed exactly, a fire, an explosion or
production of carbon monoxide may result causing property damage, personal injury or loss of life.
The qualified service agency is responsible for the proper installation of this kit. The installation is not
proper and complete until the operation of the converted appliance is checked as specified in the
manufacturer’s instructions supplied with the kit.
The boiler will automatically de-rate the maximum input at a rate of approximately 2% per 1,000’ above 4,500’. The
gas valves zero governor will ensure that the gas:air mixture is not affected at altitude.
Included with the conversion kit:
1 x LP Mixer, 260 G3 - IBC Part # 180-162
1 x Installer Identifier Label - IBC Part # 080-244A
1 x O-ring - IBC Part # 150-073
3 x Screw M4 x 12 IBC Part # 150-164
1 x Rating Plate Fuel Overlay - IBC Part # 080-240
3 x Washer, Flat IBC Part # 150-099
1 x Gas Valve Conversion Label - IBC Part # 080-107
1 x Gasket, Gas Valve Coupler IBC Part # 250-742C1
SL 26-260 G3 - Fuel Conversion to
Propane (NG-LP) P-300