Trinity
│
Installation and Operation Instructions
Ti Series
20
6.0 INSTALLING GAS PIPING
The Trinity Ti is factory equipped to operate with Natural Gas, the installation of a conversion kit is
required prior to operating with Propane Gas. The Natural to LP Conversion Kit must be installed prior
to installing the gas piping to the appliance. Failure to properly convert the unit to operate with Propane may result in property
damage, serious injury or death.
Liquefied
Petroleum
(LP)
propane gas is heavier than air;
therefore, it is imperative that your appliance is not
installed in a pit or similar location that will permit heavier
than air gas to collect. Check with Local Codes as they
may require appliances fueled with LP gas be provided
with an approved means of removing unburned gases from
the room. Failure to follow these instructions may result in
serious injury or death.
Installation
Refer to the current
National Fuel Gas Code ANSI
Z223.1/NFPA 54 or CAN/CGA B149.1
installation codes,
and local codes for gas piping requirements and sizing.
Pipe size running to the unit depends on:
Length of pipe.
Number of fittings.
Type of gas.
Maximum input requirement of all gas appliances in the residence.
Ensure that:
The gas line connection to the appliance does not apply any weight to the gas valve. NTI recommends using approved
flexible gas piping (if acceptable by local codes) to connect the appliance to the gas supply (See Figure 6-1 for details).
You plan the installation so that the piping does not interfere with the vent pipe, or the removal of the valve, burner, and
serviceable components.
The Appliance shall be 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 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 6-1. Valve must be listed by a nationally recognized
testing lab.
The gas line piping can safely be removed from the appliance for servicing, by strategically placing the gas line shutoff and
union; see example in Figure 6-1.
All gas piping, including gas components in the appliance, are checked for leaks using a “Bubble Test”, prior to operating
the appliance.
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.
Flexible gas piping cannot be used within the appliance cabinet and cannot pass through the cabinet
wall, use rigid piping as shown in Figure 6-1. Failure to follow these instructions may result in fire,
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 appliance is disconnected or isolated
if the test pressure is expected to exceed 1/2 PSI (14” w.c.), as damage to the valve could occur
resulting in
fire, property damage, serious injury or death.
It is highly recommended to use
flexible gas pipe, the gas valve and
blower cannot support the weight of
piping. If piping is used, ensure that
the valve supports
NO WEIGHT
Gas cock shut Off
Valve to be "T"
type handle
Figure 6-1 Gas Connection
