IBC VFC 15-150 Installation And Operating Instructions Manual

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IBC VFC 15-150 Installation And Operating Instructions Manual Manual pdf 43 page image

3-5STARTUP AND COMMISSIONINGVFC 15-150, VFC 45-225 MODULATING GAS BOILERSFUEL CONVERSIONThe VFC Series modulating boiler is factory fire-tested to operate with naturalgas, or propane as ordered. The rating plate will be marked to indicate which fuelthe particular boiler has been set up with. Firing a boiler with a fuel other thanwhat is listed on the rating plate is prohibited unless the following conversionprocedure is completed by a qualified technician.Refer to the details in the boiler’s current Installation and OperationManual, section 3.3 - “COMMISSIONING”.The Low Fire (Zero-offset) valve and High Fire (Gas: Air) ratio adjustmentwill have to be adjusted to attain optimum combustion results whenever fuelconversion is undertaken however, no mixture adjustment shall be performedunless done by a qualified technician using properly functioning andcalibrated 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 kitare read, understood and followed carefully.3. Carefully follow the procedures on page 3 of the relevant Fuel ConversionInstruction document, Combustion Testing and Adjustment.4. Place the conversion labels associated with the new fuel onto the boiler atthe positions indicated on page 4 of the applicable FUEL CONVERSIONinstruction 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 TOPROPANEPROPANE TONATURAL GASVFC 15-150 P-174 P-176VFC 45-225 P-174 P-176Table 9: Fuel Conversion Kits3.4WARNINGCheck the rating plate ofthe boiler to ensure it isconfigured for the fuel youare using. If the fuel isincorrect for the appliance,a conversion kit must beordered from IBC and the gasvalve adjusted accordingly.Failure to perform therequired fuel conversion canresult in an immediate hazard.DANGEROperating any IBC boilerusing a fuel other than thefuel listed on its rating plate isprohibited. If the informationin this section related toconversion to alternatefuels is not followed exactly,a dangerous situation canresult, leading to fire orexplosion, which may causeproperty damage, personalinjury, or loss of life.