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272 Duchaine Blvd.
New Bedford, MA 02745
NATURAL GAS TO PROPANE GAS
NATURAL GAS TO PROPANE GAS
CONVERSION INSTRUCTIONS
CONVERSION INSTRUCTIONS
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.
EFTU
EFTU
Applicable Models:
EFTU- 085, 110, 150, 199,
110C, 150C, and 199C
www.htproducts.com
lp-725 Rev. 000 Rel. 000 Date 6.1.20
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Summary of Contents for HTP EFTU-085
- Page 1 EFTU EFTU NATURAL GAS TO PROPANE GAS NATURAL GAS TO PROPANE GAS CONVERSION INSTRUCTIONS CONVERSION INSTRUCTIONS Applicable Models: EFTU- 085, 110, 150, 199, 110C, 150C, and 199C 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.
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Page 2: General Safety Information
General Safety Information HTP 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 converted to Propane using this kit. - Page 3 Contact HTP 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, 110, and 110C: Adjust throttle screw 4 - counter-clockwise 0.5 turns. b. 150, 199, 150C, and 199C: Adjust throttle screw 4 - counter-clockwise 2 turns.
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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 minimum gas flow rate (see Part. 3). Compare it to Table 2. The pressure will and Burner Setup correctly may be lowest during the maximum flow of gas. - Page 7 Part 3. Checking/Adjusting the CO2 at max and min gas flow rate WARNING Adjustments to the Gas valve may only be made by a qualified gas 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 - Combustion Test Port...
- Page 8 Part 3. Checking/Adjusting the CO2 at max and min gas flow rate Checking/ ATTENTION!! Values must be obtained Adjusting the with the front cover installed. Maximum Gas Flow Rate (High Fan Speed) Set the thermostat at the highest If the reading differs from the possible setting or draw off the domestic values given in the table, then adjust...
- Page 9 Part 3. Checking/Adjusting the CO2 at max and min gas flow rate 4. Ending Adjustment If the (%) reading at min gas flow is greater than the (%) reading at 1. Exit Test Mode by pressing RESET. max flow, or if it is less than the reading 2.
- Page 10 Part 3. Checking/Adjusting the CO2 at max and min gas flow rate 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.
- Page 12 272 Duchaine Blvd. New Bedford, MA 02745 www.htproducts.com...
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