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Installation
Venting (cont'd)
instructions (cont'd)
Gas Piping
MI vent gases must be completely vented to the outdoors of the
structure (dwelling). Install only the draft hood provided with
the new water heater and no other draft hood.
Vent pipes must be secured at each joint with sheet metal
screws.
TO
_i HIHNEY
_===_ RISE PER LINEAR
FOOT
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VENT PIPE INSTALLATION
j &WARNING
Make sure the gas supplied is the same type listed on the
model rating plate. The inlet gas pressure must not exceed
14 inches water column ½ pound per square inch (3.5kPa).
The minimum inlet gas pressure listed on the model rating
plate is for the purpose of input adjustment.
AWARNING
! if the gas control valve issubjected to pressures exceeding ½
pound per square inch (33kPa), the damage to the gas con-
tret valve could result in a fire or explosion from [ealdng gas.
AWARNING
If the main gas line shutoff serving aU gas appliances is used,
alsoturn "OFF" the gasat each appliance. Leave all gas appli-
ances shut off until the water heater installation is complete.
There must be a minimum of 6" clearance between single wall
vent ppi e and any combustible materia!. Fill and seal any clear-
ance between single wall vent pipe and combustible material
with mortar mix, cement, or other noncombustible substance.
For other than single wall, follow vent pipe manufacturer's clear-
ance specifications. To insure a tight fit of the vent pipe in a
brick chimney, seal around the vent pipe with mortar mix
cement.
AWARNING
Failure to have required clearances between vent piping and
combustible material will result in a fire hazard.
A WARNING
Be sure vent pipe is properly connected to prevent escape of
dangerous flue gaseswhich could causedeadly asphyxiation.
AWARNING
Chemical vapor corrosion of the flue and vent system may
occur if air for combustion contains certain chemical vapors.
Spray can propellants, cleaning solvents, refrigerator and air
conditioner refrigerants, swimming pool chemicals, calcium
and sodium chloride, waxes, bleach, and process chemicalsare
typical compoundswhich are potentially corrosive.
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_
cernir_g pipe size.
There must be:
• A readily accessible manual shut offwJve 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 servidng of the unit,
Be sure to check all the gas piping for leaks befbre 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.
Iilgh Altitude Models are for installation from 3,300 to 5,500
feet above sea level.
Ifa standard modd 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
informafioo.
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