Installation and Operation Manual
TFTN 085-199
32
Strain on the gas valve and fittings may result in vibration, premature component failure and
leakage and may result in a fire, explosion, property damage, serious injury or death.
Do not use an open flame to test for gas leaks. Failure to follow these instructions may result in
fire, property damage, serious injury or death.
When performing a pressure test on the gas line piping, be sure the boiler is disconnected or
isolated if the test pressure is expected to exceed 1/2 PSI (14”
WC), as damage to the gas valve
could occur resulting in
fire, property damage, serious injury or death.
Figure 7-1(a) TFTN085-199 Gas Line Connection
Figure 7-1(b) TFTN285-399 Gas Line Connection
Apply propane gas compatible pipe sealing compound to the male-end of all treaded
connections before assembly. Support boiler gas line connection during assembly of gas
piping to prevent damage to internal boiler components. Failure to follow these instructions
may result in fire, property damage, serious injury or death.
Test all gas piping, internal and external to the boiler, for leaks. Failure to follow these
instructions may result in fire, property damage, serious injury or death.
Manual Gas
Shut-off Valve
Union
Flexible Gas Line Piping
Recommended to eliminate
strain on the boiler gas
components (only use if
acceptable by local codes).
Drip Leg / Optional Gas Supply Location
When used as the Gas Supply Location,
remove cap and install on the top fitting; drip
leg must be field constructed external to the
boiler.
Drip Leg
Manual Gas
Shut-off Valve
Union
Flexible Gas Line Piping
Recommended to eliminate
strain on the boiler gas
components (only use if
acceptable by local codes).
