ACV CC105, Installation & Maintenance Manual, Page: 28 / 76

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8. Gas Piping
Section VIII: Gas Piping
8.1 Gas Supply Piping Connection
Install a 1/2” NPT pipe union at the factory supplied gas piping 1.
nipple, for ease of service.
Install the factory supplied manual shutoff valve in the gas
2.
supply piping as shown in Fig. 14. For installations in Canada the
installer must tag and identify the main shutoff valve.
Install a sediment trap (drip leg) on the gas supply line prior to
3.
connecting to the CHALLENGER gas train as shown in Fig. 14.
Support the gas piping using hangers. Do not support the
4.
piping by the appliance or its components.
Purge all air from the gas supply piping.
5.
Before placing the CHALLENGER into operation, check and test 6.
all piping connections for leaks.
Close the manual shutoff valve during any pressure test with
7.
less than 13” w.c. [32 mbar].
Disconnect the CHALLENGER and it’s gas valve from the gas
8.
supply piping during any pressure test greater than 13” w.c. [32
mbar].
Use pipe joint compound compatible with natural and propane 9.
gases. Apply sparingly only to the male threads of pipe joints so
that pipe dope does not block gas flow.
The gas supply piping must be installed in accordance
to all applicable local, state, and national codes in addi-
tion to all utility requirements.
NOTICE
Do not check for gas leaks with an open flame. Use a
gas detection device or bubble test. Failure to check
for gas leaks can result in substantial property damage,
serious injury, or death.
WARNING
Failure to apply pipe joint compound as detailed above
can result in substantial property damage, serious in-
jury, or death.
WARNING
Use a two wrench method when tightening piping onto
the appliance piping connections. Use one wrench to
prevent the appliance connections from turning and
the second to tighten adjacent piping. Failure to sup-
port the appliance piping connections could damage
piping.
WARNING
Position Bracket so
Gas Pipe Hex Rests on Bracket
Tee Fitting (by Others)
Union Fitting (by Others)
Manual Gas
Valve
(Supplied)
Cap Fitting
(by Others)
Sediment Trap
Min. Length of 3” [7.6 cm]
Fig. 14: Recommended Gas Supply Piping