NTI Trinity Tft399 Installation And Operation Manual page 4

│Installation and Operation Instructions
Trinity
Trinity Tft boilers are factory set to operate with Natural Gas; BEFORE OPERATING
WITH PROPANE, the boiler must be converted using the appropriate Natural Gas to
LP Conversion Kit; see below. Failure to properly convert the unit to safely operate with
Propane will cause dangerous burner operation, resulting in property damage, serious
injury or death.
ATTENTION: LIQUEFIED PETROLEUM (LP) PROPANE
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
boilers fueled with LP gas be provided with an approved means of removing unburned gases from the room.
Check your local codes for this requirement.
Model
Tft60-85
Tft110
Tft154
Tft201
Tft285
Tft399 (pre s/n 20916)
Tft340-399 (post s/n 90974)
Notes:
1
The Tft154 is converted to Propane using a replacement LP-Venturi Insert (p/n 85463), not an LP-Orifice. Follow the
Natural Gas to LP Conversion Instructions provided with kit number 85538-1
2
The Tft201 is converted to Propane using a replacement LP-Venturi Insert (p/n 85797), not an LP-Orifice. Follow the
Natural Gas to LP Conversion Instructions provided with kit number 85801-1.
3 Tft399's with a serial number of 20915 and lower are converted to Propane using kit number 84471-1.
4 Tft399's with a serial number greater than 90974, and all Tft340's, are converted to Propane using kit number 85469-1.
Boiler Vent / Air-Inlet Piping
The Trinity Tft is certified as a "Category IV" boiler, and requires a "Special Venting
System" designed for pressurized venting. The exhaust gases must be piped directly to
the outdoors using the vent materials and rules outlined in these instructions. Failure to
follow these instructions will result in serious injury or death.
4
Natural Gas to LP Conversion Kit
Kit Part Number
82650-1
82650-1
85538-1
85801-1
85802-1
3
84471-1
4
85469-1
LP-Orifice
415 (4.15 mm)
52 (5.2 mm)
See Note 1
See Note 2
5.2 mm
74 (7.4 mm)
6.75 mm
Tft Series