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NTI TRX150 Conversion Instructions

NTI TRX150 Conversion Instructions

Natural to propane conversion
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NATURAL TO PROPANE
NATURAL TO PROPANE
CONVERSION INSTRUCTIONS
CONVERSION INSTRUCTIONS
TRX150, TRX199, and TRX199C
TRX150, TRX199, and TRX199C
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, WHICH NECESSITATES THE USE OF A CALIBRATED
CO 2 /O 2 AND CO COMBUSTION ANALYZER.
TRX
TRX
Applicable Models:
Applicable Models:

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Summary of Contents for NTI TRX150

  • Page 1 NATURAL TO PROPANE CONVERSION INSTRUCTIONS CONVERSION INSTRUCTIONS Applicable Models: Applicable Models: TRX150, TRX199, and TRX199C TRX150, TRX199, and TRX199C 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.
  • 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 THOSE SPECIFIED FOR YOUR BOILER WITH PROPANE the boiler must be MODEL (SEE TABLE 1), DO NOT...
  • Page 3 Part 0. General Safety information WARNING ATTENTION: LIQUEFIED PETROLEUM (LP) These instructions CANNOT be PROPANE used to convert NTI appliance Liquefied Petroleum (LP) propane gas is heavier than air; models not referenced in these therefore, it is imperative that instructions. Contact NTI for the...
  • Page 4: Part 1 Propane Conversion Procedure

    Part 1 Propane Conversion Procedure 1. Install LP-Mixer with g. Remove the three bolts securing the NG-mixer to the blower and remove the LP-Diaphragm NG-Mixer. 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 –...
  • Page 5 Part 1 Propane Conversion Procedure 2. Perform preliminary adjustment on gas valve throttle screw 4. a. 150, 199, and 199C: Adjust throttle screw 4 - counter-clockwise 1.25 turns. b. Turn the gas supply on and test for gas leaks in all piping. c.
  • 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 CO2 at maximum and minimum gas flow Failure to perform the Gas Valve rate (see Part. 3). and Burner Setup correctly may Compare it to Table 2.
  • Page 7 Part 3. Checking/Adjusting the CO2 WARNING Adjustments to the Gas valve may only be made by a qualified gas technician, while using a calibrated combustion analyzer capable of measuring CO2 and CO. Adjustments may only be performed if the gas line pressure is maintained above minimum levels throughout the duration of the test.
  • Page 8 Part 3. Checking/Adjusting the CO2 2. Checking/Adjusting the CO2 at Read the CO2 value (%) and compare it with the values given in the table below: Maximum Gas Flow Rate (High Fan Speed) CO MAX (ppm) Set the thermostat at the highest Natural 8.5 to 9.7 possible setting or draw off...
  • Page 9 Part 3. Checking/Adjusting the CO2 3. Checking/Adjusting the CO2 at ADJUSTING THE GAS VALVE AT MINIMUM Gas Flow MINIMUM GAS FLOW (Low Fan Speed) Remove cap and adjust screw 2 by turning counter - clockwise to reduce With Test Function active, press the the CO2 level;...
  • Page 10 Part 3. Checking/Adjusting the CO2 4. Ending Adjustment WARNING 1. Exit Test Mode by pressing RESET. 2. Turn down the thermostat and / or stop Carbon Monoxide Never the DHW draw-off. For Only Heating leave the unit operating while Boiler applications reset all thermostatic producing Carbon Monoxide (CO) valves.
  • Page 11 Part 3. Checking/Adjusting the CO2 5. Update rating plate As the certified installer of the Natural 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 420020241400...

This manual is also suitable for:

Trx199Trx199c