Prestige Solo Series Installation Manual

Union Fitting
1-1/2" NPT Plug
Gas Flow
Tee Fitting
Cap
Sediment Trap
Min. Length of
3”
External Manual
Gas Shut Off Valve
(Must Be Within 6”
of the Boiler )
27
CHAPTER 6
CHAPTER 6 - GAS PIPING
6.1. Gas Supply Piping Connection
The gas supply piping must be installed in ac-
cordance to all applicable local, state, national
codes, and utility requirements.
1. Install a 1/2” NPT for PRESTIGE Solo 80/110, 3/4” NPT
for PRESTIGE Solo 155/175/250 or 1” NPT for PRES-
TIGE Solo 299/399 pipe union at the gas nipple, for
ease of service.
2. Install a manual shuto valve in the gas supply piping
as shown in Fig. 15 below. For installations in Canada,
the installer must tag and identify the main shuto
valve.
3. Install a sediment trap (drip leg) on the gas supply
line prior to connecting to the PRESTIGE Solo gas
train as shown in Fig. 15 below.
4. Support the gas piping using hangers. Do not sup-
port the piping by the unit or its components.
5. Purge all air from the gas supply piping.
6. Before placing the PRESTIGE Solo into operation,
check and test all connections for leaks.
• Close the manual shuto valve during any pres-
sure test with less than 13”w.c..
• Disconnect the PRESTIGE Solo and its gas valve
from the gas supply piping during any pressure
test greater than 13”w.c..
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 cause
substantial property damage, serious injury,
or death.
NOTICE
WARNING
7. Use pipe dope compatible with natural and pro-
pane gases. Apply sparingly only to the male
threads of pipe joints so that pipe dope does not
block gas ow.
• Failure to apply pipe dope as detailed
above can result in substantial property
damage, serious injury, or death.
• Use a two-wrench method when tight-
ening field piping onto the boiler piping
connections. Use one wrench to prevent
the boiler connections from turning and
the second to tighten field piping. Failure
to support the boiler piping connections
could damage piping, causing a leak, re-
sulting in substantial property damage,
serious injury, or death.
WARNING
Fig. 15 - Recommended Gas Supply Piping