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Installation
Instructions
(cont'd)
AWARNING
• The appliance and its individual s hutoffvalvemustbe discon-
nected from the gassupply pipingsystemduringanypressure
testing of the gas system at test pressures in excessof
poundper square inch(3.51dPa).
• The appliance mustbe isolated frem the gassupply piping sys-
tem by dosingits individual m anualshutoffvalveduringany
pressure testingof the gassupply piping systemat test pres-
sures equalor less than '/2poundper squareinch(3.SkPa).
_WARNING
1
Use pipe joint comp_tape
marked as beingI
resistant t o the actionof petroleum [Propane (LR)] gase_
l
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 fitting with a capped nip-
ple in the bottom outlet or other device recognized
as an effec-
tive sediment
trap. Ifa tee fitting 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.
_,WARNING
Contaminantsin the gaslinesmay causeimproperoperation
of the gascontrol valvethat may result in fire or explosion.
Beforeattachingthe gasline be surethat all gaspipeisclean
on the inside.To trap any dirt or foreignmaterial in the gas
supplyline, a drip leg (sometimes called a sediment trap)
must be incorporated in the piping.The drip leg must be ;
readilyaccessible. Installin accordance with the "Gas Piping"
section.Refer to the latest edition of the National Fuel Gas
Code,ANSI Z223,1,alsoreferred to as NFPA54.
GAS PIPING
WITH
FLEXIBLE
CONNECTOR
GROUND
FLEXIBLEGAS CONNECTOR
LABELED AS COMPLYING
WITH ANSI STANDING
" D_PLEG
(_dimenttrap)
CAP
GAS PIPING
WITH
ALL BLACK IRON
PIPE TO GAS CONTROL
GROUND
BLACK PIPE
GAS
CONTROL
VALVE
DRIP LEG
ISedirnent _r-ap)
JCAP
GAS
CONTROL
VALVE
15
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