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Installation
Instructions
(cont'd)
_WARNING
• The applianceaed its individualshutoff vahe must be dkcon-
nected from tbe gas supplypiplng system during any pressore
testing of the gas system at test pressures in excess of
. peond por _mra inch (]_kPa_
The appiiance must be isolatedfrom tbe gnssoppiy piping sys-
tem by closing its individual manual shutoff valve during any
pressuretesting of the gas supply piping system attest pres-
suresequal or lessthan ½ pound per squareinch(3.5kPa_
AWARNING
]
Use pipe joint compound or teflon tape marked as being|
remtant to the actionof petroleum[Propane(LR)] gase_
I
GROUND
GAS PIPING WITH
FLEXIBLE
CONNECTOR
LOOP
DRIP LEG
(Sediment trap)
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 gas lines may (ame improper operation
of the gas control valve that may result in fire or explosion.
Before attaching the gas line be sore that all gas pipe is clean
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 as NFPA 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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