Gas Piping - Kenmore 153.335962 Owner's Manual

Installation Instructions (cont'd)
Gas Piping
AWARNING
Make sure the gas supplied is the same type listed on the
model rating plate. The inlet gaspressuremust not exceed
14 incheswater column 'Apound per squareinch(3.5kPa)].
The minimum inlet gas pressurelisted on the model rating
plate isfor the purposeof input adjustment.
AWARNING ,
I
If the gascontrolvalveis subjectedto pressures exceeding _ I
poundper square inch(3.5kPa), the damageto the gascon-
trol valvecouldresultin a fire or explosion from eakinggas.
• &WARNING
I
If the m;un gasline shutoffservingall gasappliances is used,
I
also turn "off" the gasat each appliance. Leaveall gasappli-
ances shutoffuntil the water heater installations comp ete.
A gas line of sufficient size must be run to the water heater.
Consult the latest edition of National Fuel Gas Code ANSI
Z223.1, also referred to as NFPA54 and the gas company concern-
ing pipe size.
There must be:
• A readily accessible manual shut off valve in the gas supply line
serving the water heater, and
• A drip leg (sediment trap) ahead of the gas control valve to help
prevent dirt and foreign materials from entering the gas control
ValVe,
• A flexible gas connector or a ground joint union between the
shutoffvalve and control valve to permit servicingof the unit.
Be sure to check all the gas piping for leaks before li.ghting the
water heater. Use a soapy water solution, not a march or open
flame. Rinse offsoapy solution and wipe dry.
Standard Models are for installation up to 3,300 feet above sea
level.
High Altitude Models are for installation from 3,300 to 5,500
feet above sea level.
Ifa standard model is installed above 3,300 feet or a high altitude
model is installed above 5,500 feet, the input rating must be
reduced at the rate of 4 percent for each 1,000 feet above sea level.
Contact your local Sears Service Center or gas utility for further
information.
AWARNING
The appliance and its gas connection must be leak tested
beforep acingthe appliance m operat_n.
. &WARNING I
Use pipe joint compound or teflon tape marked as being I
resistant to the actionof petroleum [Propane (L.R)] gases. I
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 oudet or other device recognized as an effec-
tive sediment trap. If a 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 wave of the water
heater can be accomplished by either of the two methods shown.
GAS PIPING WITH
FLEXIBLE CONNECTOR
t'IANUAL SHUT OFF
VALVE
GROUND OINT
UN ON (_Jonil
AS SUPPly IffFING
FLEXIBLE GAS CONNECTOR
lABELED AS COtflF_.YING
VVITH ANSI STAN[_ARDS
LOOP
GAS
CONTROL
VALVE
CAP
GAS PIPING WITH ALL BLACK IRON
PIPE TO GAS CONTROL
MANUAL SHUT OFF _GAS SUPPLY P_FING
VALVE
]Y
BLACK PIRE
GROUND
OINT I_ / _.
UNION 3" MI
GAS
CONTROL
VALVE
AWARNING
• The appliance and itsindividual s hutoff v alvemust be discon-
nectad from the gassupply pipingsystemduringany pressure
testing of the gas systemat test pressures in excess of I/2
poundper squareinch(3.SkPa).
• The appliancemustbeisolated from the gassupply piping sys-
tem by closing its individual m anual shutoffvalveduringany
pressure testingof the gassupplypipingsystemat test pres-
sures equalor less than 1,2poundper squareinch(3.5kPa).
19
AWARNING
Contaminantsin the gaslinesmay causeimproper opere_, n
of the gascontrol valvethat may result in fire or explosion.
Beforeattachingthe gaslinebe surethat all gaspipe isdean
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
Cede, ANSI Z223.1, alsoreferred to asNFPA 54.