Advertisement
Quick Links
TFTN
NATURAL GAS TO PROPANE GAS
CONVERSION INSTRUCTIONS
Applicable Models:
TFTN285, TFTN340, and TFTN399
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
/O
AND
CO
COMBUSTION
2
2
ANALYZER.
Advertisement
Related Manuals for NTI TFTN285
Summary of Contents for NTI TFTN285
- Page 1 TFTN NATURAL GAS TO PROPANE GAS CONVERSION INSTRUCTIONS Applicable Models: TFTN285, TFTN340, and TFTN399 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.
-
Page 2: Part 0. General Safety Information
Part 0. General Safety Information NTI boilers are factory set to operate with Natural Gas. BEFORE OPERATING WITH PROPANE the boiler must be Note: NTI recommends converted to Propane using this kit. installing the LP Use the procedures outlined in these... - Page 3 NTI appliance models not air; therefore, it is imperative referenced in these instructions. that your boiler is not installed Contact NTI for the Natural Gas to in a pit or similar location that LP conversion kit and instructions will permit heavier than air for other models.
-
Page 4: Part 1. Propane Conversion Procedure
LP orifice into the groove in e. (TFTN285 only) the middle of the gasket; the orifice Remove the right side panel. should fit securely. Figure 1 – Removing the gas valve from a TFTN285... - Page 5 Part 1. Propane Conversion Procedure 1. Install LP orifice (cont'd) j. Seat gasket (w/orifice) into the outlet of the Gas Valve, and re-attach the Gas Valve to the Venturi and securely tighten the three screws. k. Reinstall the electrical connector onto the gas valve. l.
-
Page 6: Part 2. Gas Valve And Burner Setup
Part 2. Gas Valve and Burner Setup f. Observe the line pressure with the boiler WARNING running, while checking/adjusting the at Max Power and compare it to Table 2. The pressure will be lowest Failure to perform the Gas Valve during the maximum flow of gas. - Page 7 Part 2. Gas valve and burner setup Offset Screw (2) Used to set combustion at Min Power (10%). Use 2mm hex wrench. Throttle Screw (4) Used to calibrate combus- tion at Max Power (100%). Line Pressure Test Port Figure 3 – Gas valve adjustment for TFTN285-399...
- Page 8 Figure 4 – TFTN285 Combustion Test Port duration of the test. See Table 3. Failure to follow these instructions may result in serious injury or death.
- Page 9 Part 3. Checking/Adjusting the CO at Max and Min Power Checking/ Adjusting the at Max Power Adjusting the Gas Valve at Max Power Adjust the gas valve by turning Set the thermostats at the highest throttle screw (4) counterclockwise possible setting to create a demand for to increase the level;...
- Page 10 Min Power Max Power Model B u r n e r P ower B u r n e r P ower TFTN285 28.5 TFTN340 100% 39.9 TFTN399 1. Canada: Altitudes between 2000-4500 ft, de-rate by 10%. Consult local authorities for de-rating for altitudes above 4500ft.
- Page 11 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 87750 Rev. 23.8.02...
Need help?
Do you have a question about the TFTN285 and is the answer not in the manual?
Questions and answers