Installation Instructions (cont'd)
AWARNING
• The applianceanditsindividualshutoffvalvemustbediscon-
nected fromthegassupplypipingsystemduringanypressure
testingof the gassystemat test pressuresin excessof
poundper squareinch(3.51dPa).
• Theappliancemustbe isolatedfrem thegassupplypipingsys-
tem bydosingitsindividualmanualshutoffvalveduringany
pressuretestingofthe gassupplypiping systemat test pres-
suresequalor lessthan '/2poundpersquareinch(3.SkPa).
_WARNING 1
Use pipe joint comp_tape marked as beingI
resistantto 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
Contaminantsinthe gaslinesmay causeimproperoperation
ofthe gascontrolvalvethat may resultin fire or explosion.
Beforeattachingthe gaslinebesurethat all gaspipeisclean
on the inside.To trap anydirt or foreignmaterial in the gas
supplyline, a drip leg (sometimes calleda sediment trap)
must be incorporated in the piping.The drip leg must be ;
readilyaccessible.Installin accordancewith the "Gas Piping"
section.Refer to the latest edition ofthe National FuelGas
Code,ANSI Z223,1,alsoreferred to asNFPA54.
GAS PIPING WITH
FLEXIBLE CONNECTOR
GROUND
FLEXIBLEGAS CONNECTOR
LABELEDAS 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
