1
VFC 15-150 / VFC 45-225
NATURAL GAS coNveRSioN PARTS KiT# P-176
120-170 R2
DANGER
Check the rating plate of the boiler
to ensure it is configured for the
fuel you are using.
Failure to perform the proper fuel
conversion when required can
result in an immediate hazard.
Operating any IBC boiler using a
fuel other than the fuel listed on
its rating plate is prohibited. If
these instructions are not followed
exactly, a dangerous situation can
result, leading to fire, explosion or
production of carbon monoxide,
which may cause property damage,
personal injury, or loss of life.
NOTE
These instructions are to be closely followed, and referenced to the details in
the boiler’s current certified Installation and Operating Instruction Manual.
The above listed modulating boilers are factory fire-tested to operate with natural
gas, or propane as ordered. The rating plate will be marked to indicate which fuel
the particular boiler has been set up with. Firing a boiler with a fuel other than what
is listed on the rating plate is prohibited unless the following conversion procedure
is completed by a qualified technician.
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.
Important Note: If converting from Propane to Natural Gas - Order Propane
to Natural Gas Conversion Kit, IBC Part# P-174 from your authorized IBC
Distributor.
MODEl NuMbER
NATuRAl GAs
TO PROPANE
PROPANE TO
NATuRAl GAs
VFC 15-150
P-174
P-176
VFC 45-225
P-174
P-176
Table 1: Fuel Conversion Kits
InCluded wITh ConVersIon KIT
(IBC ParT# P-176)
•
1 x rating Plate Fuel overlay - IBC Part# 80-114a
•
1 x Gas Valve Conversion label - IBC Part# 80-107B
•
1 x Installer Identifier label - IBC Part# 80-172a
•
1 x Instruction sheet - IBC Part# 120-170 r2
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.
