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TFTN
NATURAL GAS TO PROPANE GAS
CONVERSION INSTRUCTIONS
Applicable Models:
TFTN085, TFTN110, TFTN150, and TFTN199
WARNING
service agency in accordance with the manufacturer's
instructions and all applicable codes and requirements
of the authority having jurisdiction. If the information
an explosion or production of carbon monoxide
may result causing property damage, personal
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, WHICH
NECESSITATES THE USE OF A CALIBRATED CO 2 /O 2
AND CO COMBUSTION ANALYZER.
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Summary of Contents for NTI TFTN
- Page 1 TFTN NATURAL GAS TO PROPANE GAS CONVERSION INSTRUCTIONS Applicable Models: TFTN085, TFTN110, TFTN150, and TFTN199 WARNING service agency in accordance with the manufacturer’s instructions and all applicable codes and requirements of the authority having jurisdiction. If the information an explosion or production of carbon monoxide may result causing property damage, personal responsible for the proper installation of this kit.
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Page 2: Part 0. General Safety Information
Part 0. General Safety Information NTI boilers are factory set to operate If the kit contents do not match with Natural Gas. BEFORE OPERATING WITH PROPANE the boiler must be model (see Table 1), DO NOT converted to Propane using this kit. - Page 3 Contact NTI for the Natural Gas to your boiler is not installed in a LP conversion kit and instructions pit or similar location that will for other models.
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Page 4: Part 1 Propane Conversion Procedure
Part 1 Propane Conversion Procedure 1. Install LP-Mixer with LP-Diaphragm a. Check that the code of the air / gas mixer and the diameter of the gas diaphragm are those indicated for the model of boiler to be converted – see Table 1. - Page 5 Part 1 Propane Conversion Procedure 2. Perform preliminary adjustment on gas valve throttle screw 4. a. 085 and 110: Adjust throttle screw 4 counter-clockwise 0.5 turns. b. 150 and 199: Adjust throttle screw 4 counter-clockwise 2 turns. c. Turn the gas supply on and test for gas leaks in all piping.
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Page 6: Operating Sequence
Part 2. Gas valve and burner setup f. Observe the line pressure with the WARNING boiler running, while checking/ adjusting the CO2 at maximum and Failure to perform the Gas Valve Compare it to Table 2. The pressure will and Burner Setup correctly may result in incorrect operation, g. - Page 7 Part 3. Checking/Adjusting the CO at Max and Min Power WARNING Adjustments to the Gas valve may technician, while using a calibrated combustion analyzer capable of measuring and CO. Adjustments may only be performed if the gas line pressure is maintained above minimum levels throughout the Figure 6 –...
- Page 8 Part 3. Checking/Adjusting the CO at Max and Min Power Checking/ Adjusting the at Max Power Adjusting the Gas Valve at Max Power Set the thermostat at the highest possible Adjust the gas valve by turning setting setting to create a demand for heat. screw 4 clockwise to increase the level;...
- Page 9 Part 3. Checking/Adjusting the CO at Max and Min Power If the (%) reading at Min Power is 4. Ending Adjustment not 0.2 – 1.0% lower than the 1. Exit Test Mode by pressing the 'Press to reading at Max Power, adjust the gas Stop Test' button ( located in the lower- valve following the instructions below.
- Page 10 Part 3. Checking/Adjusting the CO at Max and Min Power 5. Update rating plate Gas to LP Conversion Kit, you must indicate on the boiler that it has been converted for use with Propane (LP) Gas: a. Update Rating Plate Decal – Locate the rating plate decal on the side of the appliance.
- Page 12 Visit us online NTI Boilers Inc. 30 Stonegate Drive Saint John, NB E2H 0A4 Canada Technical Assistance: 1-800-688-2575 Website: www.ntiboilers.com Fax: 1-506-432-1135 86662 Rev. 22.7.13...
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