3-5
STARTUP AND COMMISSIONING
VFC 15-150, VFC 45-225 MODULATING GAS BOILERS
FUEL CONVERSION
The VFC Series modulating boiler is 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.
Refer to the details in the boiler’s current Installation and Operation
Manual, section 3.3 - “COMMISSIONING”.
The Low Fire (Zero-offset) valve and High Fire (Gas: Air) ratio adjustment
will have to be adjusted to attain optimum combustion results whenever fuel
conversion is undertaken however,
no mixture adjustment shall be performed
unless done by a qualified technician using properly functioning and
calibrated combustion analyzing equipment.
The following procedure can be carried out by a qualified technician:
1.
Ensure you are installing the correct fuel conversion kit for your boiler.
Compare the boiler model number with the Kit# found in Table #9.
2.
Ensure the fuel conversion instructions supplied with the fuel conversion kit
are read, understood and followed carefully.
3.
Carefully follow the procedures on page 3 of the relevant Fuel Conversion
Instruction document, Combustion Testing and Adjustment.
4.
Place the conversion labels associated with the new fuel onto the boiler at
the positions indicated on page 4 of the applicable FUEL CONVERSION
instruction sheet.
5.
Carefully follow the “Prior to Start-Up “ - Section 3.2 and “Commissioning” -
Section 3.3 procedures on the preceding pages 3-2 and 3-3.
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 9: Fuel Conversion Kits
3.4
WARNING
Check the rating plate of
the boiler 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.
DANGER
Operating any IBC boiler
using a fuel other than the
fuel listed on its rating plate is
prohibited. If the information
in this section related to
conversion to alternate
fuels is not followed exactly,
a dangerous situation can
result, leading to fire or
explosion, which may cause
property damage, personal
injury, or loss of life.
Summary of Contents for VFC 15-150
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