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Trinity Tx51-151 & Tx151C
NATURAL TO LP CONVERSION INSTRUCTIONS:
Version Date: 2017-01-20
Kit Numbers:
84867-1, 84867-2, 84867-3, 84867-4
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
/O
and CO combustion analyzer.
2
2
Trinity boilers are factory set to operate with Natural Gas. BEFORE OPERATING WITH PROPANE the specified
LP-orifice must be installed between the Venturi and Gas Valve. There are four (4) versions of conversion kit 84867
(1, 2, 3 & 4); each kit contains an LP-orifice sized for a specific boiler model (see Table below). The orifice size is
stamped into each orifice; ensure the orifice being used corresponds to the boiler model being converted. Use the
procedures outlined in these instructions to fully complete the Natural Gas to LP conversion.
Kit Contents:
Natural to LP Conversion Instructions
Natural to LP Conversion Decal (p/n 84867)
LP-orifice (see below)
LP Conversion Kit and LP-orifice Identification:
Boiler Model No.
Tx51
Tx81
Tx101
Tx151, Tx151C
This conversion kit CANNOT be used to convert NTI appliance models not referenced in these
instructions. Contact NTI for the Natural Gas to LP conversion kit and instructions for other
models.
Failure to install the correct LP-orifice may result in dangerous Carbon Monoxide levels, fire or
explosion leading to property damage, personal injury or death.
Liquefied Petroleum (LP) propane gas is heavier than air; therefore, it is imperative that your boiler is not
installed in a pit or similar location that will permit heavier than air gas to collect. Local Codes may require
appliances fueled with LP gas be provided with an approved means of removing unburned gases from the
room. Check your local codes for this requirement.
Tx51-151(C) NG-LP Conversion Instructions
Size (mm)
3.5
3.8
4.2
5.05
ATTENTION: LIQUEFIED PETROLEUM (LP) PROPANE
84925
LP-orifice
Part No.
84869
84870
84871
84795
Conversion Kit
Part No.
84867-1
84867-2
84867-3
84867-4
1
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Related Manuals for NTI 84867-1
Summary of Contents for NTI 84867-1
- Page 1 5.05 84795 84867-4 This conversion kit CANNOT be used to convert NTI appliance models not referenced in these instructions. Contact NTI for the Natural Gas to LP conversion kit and instructions for other models. Failure to install the correct LP-orifice may result in dangerous Carbon Monoxide levels, fire or explosion leading to property damage, personal injury or death.
-
Page 2: Gas Valve And Burner Setup
1.0 Installing the Orifice 1. Turn the 120VAC power supply off to the boiler. 2. Turn gas supply “shut off valve” off. 3. Remove the front cover from the unit. 4. Remove the gas line from the Gas Valve. Venturi 5. - Page 3 7. Adjust the gas line pressure to ensure the parameters in Table 2-1 are attained under all conditions. If possible adjust the line pressure to the "Nominal/Desired" value listed in Table 2-1 while the unit is operating at the maximum modulation rate. 8.
- Page 4 4. Operate the unit at the minimum modulation rate (Table 2-2). Ensure the combustion remains smooth and CO and CO values are lower than the values obtained during maximum modulation (Table 2-1). If not, do not adjust further, contact NTI for assistance. Failure to perform the flue gas analysis and adjustment may result in erratic and unreliable burner operation, leading to reduced efficiency, increased fuel consumption, reduced component life, heat exchanger combustion deposits, and general unsafe operation.
- Page 5 0” wc [ 0 kPa] 0” wc [ 0 kPa] Gas Pressure, Manifold Pression du Gaz, Collecteur Figure 3-2 Conversion Decal This appliance was modified with kit #84867-1, by which accepts responsibility that this conversion Attach this decal below the existing was made properly.
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