NTI Trinity Tft399 Installation And Operation Manual page 30

│Installation and Operation Instructions
Trinity
Ensure that:
 The gas line connection to the boiler does not apply any weight to the gas valve. NTI recommends using
approved flexible gas piping (if acceptable by local codes) to connect the boiler to the gas supply (See
Figure 7-1 for details).
 You plan the installation so the piping does not interfere with the vent pipe, or the removal of the valve,
burner, and serviceable components.
 The Boiler is installed such that the gas ignition system components are protected from water (dripping,
spraying, rain etc.) during installation and servicing.
 The gas piping is large enough for all the gas appliances in the home. No appreciable drop in line pressure
should occur when any unit (or combination of units) lights or runs. Use common gas-line sizing practices.
 Always use a pipe-threading compound that is resistant to Propane (LP) gas solvent action. Apply sparingly
to all male threads, starting at two threads from the end. Over doping or applying dope to the female end,
can result in a blocked gas line.
 DO NOT TIGHTEN FITTINGS WITHOUT SUPPORTING THE GAS VALVE as damage to the valve or
blower motor can occur.
 Install a manual "Equipment Shut-Off Valve" as shown in Figure 7-1. Valve must be listed by a nationally
recognized testing laboratory.
 The gas line piping can safely be removed from the boiler for servicing, by strategically placing the gas line
shutoff and union; see example in Figure 7-1.
 All gas piping, including gas components in the boiler, are checked for leaks using a "Bubble Test", prior to
operating the boiler.
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" w.c.), as damage to the
gas valve could occur resulting in fire, property damage, serious injury or death.
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Tft Series