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Installation Instructions (cont'd)
AWARNING
• The applianceanditsindividualshutoffvalvemustbediscon-
nectedfromthe gassupplypiplngsystemduringanypressure
testingof the gassystemat test pressuresin excessof
poundpersquareinch(3.SkPa). ..
• The appiiancemustbeisulatedfromthegassuppiyIxl_ngsys-
tem bydosingi_ individualmanualshutoff valveduringany
pressuretestingofthe gassupplypipingsystemat trot pres-
suresequalor lessthan_ poundpersquareinch(3.SkPa).
GAS PIPING WITH
FLEXIBLE CONNECTOR
LOOP
GROUND
GAS
_'ONTROL
VALVE
AWARNING [
Use pipe joint compound or teflon tape marked as being[
resistanttothe acUonofpetroleum [Propane(LR)] gase_ [
DRIP LEG
(Sedimenttrap)
CAP
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.
AWARNING
Contaminantsin thegaslinesmay causeimproperoperation
of the gascontrolvalvethat may resultin fire or explosion.
Beforeattachingthegaslinebesurethat all gaspipeisclean
on the inside.Totrap anydirt or foreign material in the gas
supplyline, a drip leg (sometimes calleda sedimenttrap)
must be incorporated in the piping.The drip leg must be
readilyaccessible.Installin accordancewith the "Gas Piping"
section.Referto the latesteditionof the NationalFuelGas
Code,ANSI 7.223.1,alsoreferred toasNFPA54.
GAS PIPING WITH ALL BLACK IRON
PIPE TO GAS CONTROL
GROUND JOINT "_ BLACK PIPE
3 min._ (Se_D'RmIPntLEt_ap)tj CAP
GAS
CONTROL
VALVE
15