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Installation Instructions (cont'd)
Gas Piping
&WARNING
Make sure the gas supplied is the same type listed on the
model rating plate. The inlet gas pressure must not exceed
10.5in. water column (2.6kPa) for natural gasor 13in. water
column (3.2kPa) for propane (LR) gas. The minimum inlet
gas pressure listed on the model rating plate is for the pur-
poseof input adjustment.
WA.N,NG ,1
If the gas control valve is subjected to pressures exceeding ½I
pound per square inch (3.5kPa), the damage to the gas con- I
trol valve could result in afire or explosion from leaking gas. ]
•,WARNING ]
If the main gas line shutoff serving all gas appliances is used, I
also tum "off" the gas at each appliance. Leave all gas appli. I
ances shut off until the water heater installation iscomplete. J
AWARNING I
Use pipejoint compound or teflon tape marked as being
resistant to theactionofpetroleum[Propane(L.R)] gases.
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 he accomplished by either of the two methods shown.
GAS PIPING WITH
FLEXIBLE CONNECTOR
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 NFPA 54 and the gas company con-
cerning pipe size.
There must be:
• A readily accessible manual shut off valve in the gas supply line
servingthe 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 andcontrol valveto permit servicing of the unit.
Be sure to check all the gas piping for leaks before lighting 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.
lfa 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.
IT AWARNING I
he appliance and its gasconnection must be leak tested
foreplacingthe applianceinoperation.
_,WARNING
• The applianceanditsindividualshutoffvalvemustbediscon-
nectedfrom the gassupplypipingsystemduringanypressure
testingof the gassystemat test pressuresin excessof I/2
pound persquareinch(3.5kPa).
•The appliancemustbe isolatedfrom thegassupplypipingsys-
tem by closingitsindividualmanualshutoffvalveduring any
pressuretestingof the gassupplypipingsystemat test pres-
soresequalor lessthan I_ poundper squareinch(3.5kPa).
19
MANUAL SHUT OFF
VALVE
GROUND JOINT
UNION
AS SUPPLY PIPING
FLEXIBLE GAS CONNECTOR
LABELED AS COMPLYING
WITH ANSI STANDARDS
LOOP
(Sediment trap)
CAP
GAS
CONTROL
VALVE
GAS PIPING WITH ALL BLACK IRON
PIPE TO GAS CONTROL
MANUAL SHUT OFF [1_ CAS SUPPLY PIPING
VALVE
BLACK PIPE
GROUND
UNION
(Sedimen(
CAP
GAS
CONTROL
VALVE
_,WARNING
Contaminants in the gaslines may cause improper operation
of the gas control valve that may result in fire or explosion.
Before attaching the 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.Install in 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.
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