Gas Piping - Kenmore POWER MISER 153.335803 Owner's Manual

Installation Instructions (cont'd)
Gas Piping
I AWARNING ]
Make sure the gassure type listed on the I
model rating plate. The inlet gaspressuremust not exceed
14 incheswater column 'Apoundper squareinch(3.5kPa)]. I
The minimum inlet gaspressurelistedon the model rating I
plate isfor the purposeof input adjustment.
AWARNING , J
If the gascontrolvalveissubjectedto pressures exceeding'A
pound per square inch(3.5kPa), the damage to the gas con-
trol valvecouldresult in a fire or expiosion from leakingga_ J
AWARNING
If the main gasline shutoffservingall gasappliancesis used,
alsotorn "off" the gasat each appliance. L eaveall gasappli-
ancesshutoff until dm water heater installation 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 con-
cerning 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 servicing of the unit.
Be sure to check all the gas piping for leaks before li_hting the
water heater. Use a soapy water solution, not a match 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 be leak tested
The appliance and its gas connection must
beforeplacingthe appliance in operation.
f AWARNING J
Use pipe joint €omp_tape marked as beingI
resistant t o the actionof petroleum [Propane(LR)] gese_ 1
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. 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 valve of the water
heater can be accomplished by either of the two methods shown.
GAS PIPING WITH
FLEXIBLE CONNECTOR
MANUAL _('AS SUPPLY PIPING
SHUTOFF
VALVE
FLEXIBLE G_S CONNECTOR
LABELED AS COMPLYING
WITH ANSI STANDARDS
GROUND
UNION
(Optional)
DRIP LEG
(Sediment trap)
CAP
GAS
CONTROL
VALVE
GAS PIPING WITH ALL BLACK IRON
PIPE TO GAS CONTROL
MANUAL_;ASSUPPLY PIING
SHUTOFF
VALVE
GROUND lOIN1
UNION
T
6"
BLACK PIPE
DRIP LEG
(Sediment t_ap)
CAP
GAS
CONTROL
VALVE
AWARNING
• The applianceand its individual shutoffvalvemust be discon-
nectedfrom the gassupply pipingsystem duringanypressure
testing of the gassystem at test pressures in excessof I/2
poundper squareinch(3.5kPa).
• The appliance must be isolated from the gassupply piping sys-
tem by closing its individual m anualshutoffvalveduringany
pressure testingof the gassupply pipingsystemat test pres-
sures equalor lessthan I/2 pound per squareinch(3.5kPa).
19
&WARNING
Contaminants in the gaslinesmay causeimproper operation
of the gascontrol valvethat may result in fire or explosion.
Beforeattachingthe gasline be sure that all gaspipe isclean
on the inside.To trap any dirt or foreign material in the gas
supply line, a drip leg (sometimes called a sediment trap)
must be incorporated in the piping.The drip leg must be
readily accessible.Installin accordance with the "Gas Piping"
section.Refer to the latest edition of the National Fuel Gas
Code,ANSI Z223.1,also referred to as NFPA 54.