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INSULATION BLANKETS
Insulation blankets available to the general public for external use
on gas water heaters are not required for use on your water heater.
The purpose of an insulation blanket is to reduce the standby heat
loss encountered with storage tank water heaters. Your water
heater meets or exceeds the current edition of ASHRAE/IES 90.1
standards with respect to insulation and standby loss requirement
making an insulation blanket unnecessary.
WARNING
Should you choose to apply an insulation blanket to this heater, you
should follow these instructions. Failure to follow these instructions
can result in fire, asphyxiation , serious personal injury or death.
• Do not apply insulation to the top of the water heater, as this will
interfere with safe operation.
• Do not cover the outer door, thermostat or temperature & pressure
relief valve.
• Do not allow insulation to come within 2" (5cm) of the oor to prevent
blockage of combustion air ow to the burner.
• Do not cover the instruction manual. Keep it on the side of the water
heater or nearby for future reference.
• Do obtain new warning and instruction labels from the manufacturer
for placement on the blanket directly over the existing labels.
• Do inspect the insulation blanket frequently to make certain it does
not sag, thereby obstructing combustion air ow.
HIGH ALTITUDE INSTALLATIONS
Water heaters covered in this manual have been tested and
approved for installation at elevations up to 7,700 feet (2,347
m) above sea level. For installation above 7,700 feet (2,347 m),
the water heater’s Btu input should be reduced at the rate of 4
percent for each 1,000 feet (305 m) above sea level which requires
replacement of the burner orifice in accordance with the National
Fuel Gas Code ANSI Z223.1/ NFPA 54. Contact your local gas
supplier for further information.
Failure to replace the standard orifice with the proper high altitude
orifice when installed at elevations above 7,700 feet (2,347 m)
could result in improper and inefficient operation of the water
heater, producing carbon monoxide gas in excess of the safe
limits. This could result in serious injury or death. Contact your
local gas supplier for any specific changes that may be required
in your area.
Upon completion of derating of the heater, adjustment to the
gas pressure regulator may be required. See CHECKING THE
INPUT section in this manual for inlet and manifold pressure
requirements.
Also due to the input rating reduction required at high altitudes,
the output rating of the appliance is also reduced and should be
compensated for in the sizing of the equipment for application.
CIRCULATING PUMP
A circulating pump is used when a system requires a circulating
loop or there is a storage tank used in conjunction with the heater.
Refer to the piping diagrams at rear of manual for electrical hookup
information and install in accordance with the current edition of the
National Electrical Code ANSI/NFPA No. 70. In Canada refer to
Canadian Electrical Code CSA C22.1.
Only all bronze circulating pumps are used with commercial
water heaters. Although circulators are oiled and operated by
the manufacturer some circulators must be oiled again before
operating. Please refer to manufacturer’s instructions.
INSTALLATION INSTRUCTIONS
REQUIRED ABILITY
INSTALLATION OR SERVICE OF THIS WATER HEATER
REQUIRES ABILITY EQUIVALENT TO THAT OF A LICENSED
TRADESMAN IN THE FIELD INVOLVED. PLUMBING, AIR
SUPPLY, VENTING, ELECTRICAL AND GAS SUPPLY WORK
ARE REQUIRED.
LOCATING THE HEATER
WARNING
THERE IS A RISK IN USING FUEL BURNING APPLIANCES SUCH
AS GAS WATER HEATERS IN ROOMS, GARAGES OR OTHER
AREAS WHERE GASOLINE, OTHER FLAMMABLE LIQUIDS OR
ENGINE DRIVEN EQUIPMENT OR VEHICLES ARE STORED,
OPERATED OR REPAIRED. FLAMMABLE VAPORS ARE HEAVY
AND TRAVEL ALONG THE FLOOR AND MAY BE IGNITED BY THE
HEATER’S PILOT OR MAIN BURNER FLAMES CAUSING FIRE
OR EXPLOSION. SOME LOCAL CODES PERMIT OPERATION
OF GAS APPLIANCES IF INSTALLED 18 INCHES (45.7 CM) OR
MORE ABOVE THE FLOOR. THIS MAY REDUCE THE RISK IF
LOCATION IN SUCH AN AREA CANNOT BE AVOIDED.
DO NOT INSTALL THIS WATER HEATER DIRECTLY ON A CARPETED
FLOOR. A FIRE HAZARD MAY RESULT. Instead the water heater must
be placed on a metal or wood panel extending beyond the full width
and depth by at least 3 inches (7.6 CM) in any direction. If the heater is