IBC VX Series, Installation & Operating Manual, Page: 67 / 111

6.3.1 Checking a boiler's fuel source
Danger
Operating any IBC appliance using a fuel other than the fuel listed on its rating plate is
prohibited. Failure to follow the instructions on converting to alternate fuels can result in a
fire or explosion, which may cause property damage, personal injury, or loss of life.
Check the rating plate of the appliance to ensure it is configured for the fuel you are
using. If the fuel is incorrect for the appliance, a conversion kit must be ordered from IBC
and the gas valve adjusted accordingly. Failure to perform the required fuel conversion
can result in an immediate hazard.
This boiler model can burn either natural gas or propane if equipped with the correct fuel-air metering
device. Examine the rating plate of the boiler to ensure it is configured for the fuel you are using. For
example, if the boiler is configured for natural gas, but needs to be converted to propane, use the
conversion kit (sold separately by IBC) to install the appropriate fitting(s) and adjust the gas valve
accordingly. See
Table 10 for the required conversion kit.
The
touchscreen controller
will automatically detect the installation’s altitude and make the
appropriate adjustments to operate the boiler up to 4,500 feet in elevation without de-ration. The
boiler will automatically de-rate at altitudes above 4,500 feet.
Fuel conversion kit numbers
Compare the boiler model number with the Kit # found in the table below:
Model Number Natural Gas to Propane Propane to Natural Gas
VX 110
P-1500 P-1501
VX 150
P-1502 P-1503
VX 199
P-1504 P-1505
Table 10 Fuel Conversion Kits
6.3.2 Performing a fuel conversion
You must be a qualified heating professional to perform this procedure. In this fuel conversion, you
will be replacing the orifice, located between the gas valve and gas line to the fan, with the fuel-
appropriate orifice supplied in the kit.
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6.3.1 Checking a boiler's fuel source