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Installation Instructions (cont'd)
_WARNING
• The applianceaed its individualshutoffvahe must be dkcon-
nected from tbe gassupplypiplngsystem duringanypressore
testing of the gas system at test pressures in excess of
.peondpor_mrainch(]_kPa_
The appiiancemust be isolatedfrom tbe gnssoppiy pipingsys-
tem by closingits individual manual shutoff valve during any
pressuretesting of the gassupplypiping systemattest pres-
suresequal or lessthan ½pound per squareinch(3.5kPa_
AWARNING ]
Use pipejoint compoundor teflon tape marked as being|
remtant to theactionofpetroleum[Propane(LR)] gase_ I
GROUND
GAS PIPING WITH
FLEXIBLE CONNECTOR
LOOP
DRIP LEG
(Sedimenttrap)
CAP
GAS
CONTROL
VALVE
SEDIMENT TRAP
A sediment trap shall be installed as close to the inlet of the
water heater as practical at the time of water heater installation.
The sediment trap shall be either a tee fltting with a capped nip-
ple in the bottom outlet or other device recognized as an effec-
tive sediment trap. Ira tee fltting is used, it shall be installed in
conformance with one of the methods of installation shown
below,
Connecting the gas piping to the gas control valve of the water
heater can be accomplished by either of the two methods shown.
A,WARNING
Contaminant3 in the gaslines may (ame improper operation
of the gas control valve that may result in fire or explosion.
Before attaching the gasline be sore that all gaspipe isclean
on the inside. To trap any dirt or foreign material in the gas
supply line, a drip leg (sometimes called a sediment trap)
must be incorporated in the piping. The drip leg must be
readily accessible.Install in accordance with the "Gas Piping"
section. Refer to the latest edition of the National Fuel Gas
Cede, ANSI Z223. I, also referred to asNFPA 54.
GAS PIPING WITH ALL BLACK IRON
PIPE TO GAS CONTROL
GROUND BLACK PIPE
UNlON(Opdo_I)
DRIP LEG
3" rain (Sedimenttrap)
GAS
CONTROL
VALVE
CAP
15
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