Gas Piping - Kenmore POWER MISER 153.336331 Owner's Manual

Venting (cont'd)
WARNING
f Besurevent pipeis properlyconnected to preventescape of
dangerousflue gases whichcouldcausedeadlyasphyxia|ion;
WARNING
Chemicalvapor corrosionof the flue and vent systemmay
occur if air for combustion contains certainchemical v apors.
S pra ..canpropellants, . cleanin .g. solvents, r efrig. erator and.air
con_tmner refrigerants,swwmmmg pool chemicals, c aicmm
and sodiumchloride,waxes,bleachand processchemicals
aretypicalcompounds whicharepotentiallycorrosive.
Cas piping
WARNING .......
Make sure the gassupplied is the same type listed on the
modelrating plate.The inletgaspressure mustnotexceed14
incheswatercolumn[½pound per squareinch(3.5kPa)].
WARNING
if thegas controlValveis subjected to pressures e xceeding ½
poundper squareinch (3.5kPa),the damageto the gas con-
trol valvecould resultin a fire or explosion from leakinggas.
........... WARNING ......
if the maingasline shutoffserving all gasappliances is used,
alsoturn "OFF"the gasat eachappliance.Leaveall gasappli-
ancesshutoff until t-hewater heaterinstallation iscomplete.
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 concerning pipe size.
There must be:
-A readily accessible manual shut off valve in the gas sup-
ply 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 shutoff valve and control valve to permit servicing of
the unit.
Be sure to check all the gas piping for leaks before lighting
"thewater heater. Use a soapy water solution, hot a match
or open flame. Rinse off soapy 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.
If a standard model is installed above 3,300 feet or a high
altitude model is installed above 5,500 feet, the input rat-
ing 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.
WARNING
The appliance and its gas connection must be leak test-
ed before placing the appliance in operation.
12
WARNING
The applianceand itsindividual s hutoffvalvemustbe discon,
nectedfrom the gassupply pipingsystem duringanypressure
testing of that system at test pressures i n excess of ½ pound
per square inch(3.SkPa).
'rheappliancemustbe isolated from the gassupply piping sys.
tern by closingits individualmanual shutoffvalveduring any
pressure testingof the gassupplypipingsystem at test pres-
sures equalto or less than ½poundpersquareinch(3.SkPa).
WARNING 1
Use pipe joint compound or teflon tape marked as being
resistantto the action of petroleum [Propane(L.P.)]gases.
Connecting the gas piping to the gas control valve of the
water heater can be accomplished by either of the two
methods shown.
GAS PIPING WITH FLEXIBLECONNECTOR
GAS SUPPLY PIPING
_ MANUAL SHUTOFF VALVE
GROUND JOINT
UNION (OPTIONAL)
FLEXIgLE GAS CONNECTOR
LABELED AS COMPLYING
WITH ANSI STANDARDS
LOOP
GAS
CONTROL
VALVE
6" DRIP LEG
(SEDIMENT TRAP)
CAP
GAS PIPING WITH ALL BLACK IRON PIPE
TO GAS CONTROL
GAS SUPPLY PIPING
" MANUAL SHUTOFF VALVE
T
6" '
J_
GROUND JOINT UNION
BLACK P PE
GAS
CONTROL
VALVE
DRIP LEG
(SEDIMENT TRAP)
CAP
WARNING
Contaminants in the gas lines may causeimproper opera-
tion of the gascontrol-valve that may resultin fire or explo-
sion.Beforeattachingthe gasline be surethat all gaspipe is
clean on the inside.To trap any dirt or foreign material in
the gassupplyline, a drip leg (sometimes called a sediment
trap) mustbe incorporatedin the piping.The drip leg must
be readily accessible.Install in accordancewith the "Gas
Piping"section. Refer to the latest edition of the National
FuelGasCode, ANSI Z223.1, alsoreferredto as NFPA54.