Safety Instructions
A WARNING _WARNING
Improper installation, adjustment, alteration, service At the time of manufacture this water heater was pro-
or mamtanance can cause DEATH, SERIOUS BODILY vided with a combination temperature-pressures relief
INJURY,OR PROPERTYDAMAGE. Refer to this manu- valve certified by a nationally recognized testing labo-
al for assistance consult your local gas utility or call ratory that maintains periodic inspection of production
Maytacl Customer Service at 1-800-788-8899 for an of listed equipment or materials, as meeting the
authonzed servicer for further information, requirements for Relief Valves and Automatic Gas
Shutoff Devices for Hot Water Supply Systems, and I
the latest edition of ANSI Z21.22 and the code require- I
ments of ASME. If replaced, the valve must meet the I
AWARNING requirements of local codes,but not lessthan a combi-
WATER HEATERS EQUIPPED FOR ONE TYPE GAS nation temperature and pressure relief valve certified
ONLY: This water heater is equipped for one type as meeting the requirements for Relief Valves and
gas only. Check the model rating plate near the gas Automatic Gas Shutoff Devices for Hot Water Supply I
control valve for the correct gas. DO NOT USE THIS Systems, ANSI Z21.22 by a nationally recognized test- [
WATER HEATER WITH ANY GAS OTHER THAN THE ing laboratory that maintains periodic inspection of
ONE SHOWN ON THE MODEL RATING PLATE.Failure production of listed equipment or materials.
to use the correct gas can cause problems which can IThe valve must be marked with a maximum set pres-
result in DEATH, SERIOUS BODILY INJURY, OR PROP- sure not to exceed the marked hydrostatic working
ERTY DAMAGE. If you have any questions or doubts pressure of the water heater (150 Ibs./sq. in.) and a
consult your gas supplier or local utility, discharge capacity not less than the water heater
input rate as shown on the model rating plate.
(Electric heaters - watts divided by 1000 x 3415 equal
BTU/Hr. rate.)
AWARNING Your local jurisdictional authority, while mandating the I
INSTALLATIONS IN AREAS WHERE FLAMMABLE LIQ- use of a temperature-pressure relief valve complying J
UIDS (VAPORS)ARE LIKELYTO BEPRESENTOR STORED with ANSIZ21.22 and ASME, may require a valve model I
(GARAGES, STORAGE, AND UTILITY AREAS, ETC): different from the one furnished with the water heater. I
Flammable liquids (suchas gasoline, solvents, propane Compliance with such local requirements must be sat- I
(LP) or butane, etc.), all of which emit flammable isfied by the installer or end user of the water heater I
vapors, may be improperly/stored or used in such with a locally prescribed temperature-pressure relief I
areas. The gas water heater tc_nitoror main burner can valve installed in the designated opening in the water I
ignite such vapors. The resulting flashback and fire can heater in place of the factory furnished valve. I
For safe operation of the water heater, the relief valve I
wellcauSeasdeathproperty°rserioUSdamage.burnsto anyone in the area, as must not be removed from it's designated opening or I
If installation in such areas is your only option, then plugged.
the installation must be accomplished in a way that The temperature-pressure relief valve must be
the ignitor and main burner flame are elevatedfrom installed directly into the fitting of the water heater
the floor at least 18 inches. While this may reduce the designated for the relief valve. Position the valve
chances of flammable vapors from a floor spill being downward and provide tubing so that any discharge
ignited, gasoline and other flammable substances will exit only within 6 inches above, or at any distance
should never be stored or used in the same room or below the structural floor. Becertain that no contact is
area containing a gas water heater or other open made with any live electrical part. The discharge open-
flame or spark producing appliance, ing must not be blocked or reduced in size under any
NOTE: Flammable vapors may be drawn by air currents circumstances. Excessive length, over 30 feet, or use of
from other areas of the structure to the appliance, more than four elbows can cause restriction and
reducethe dischargecapacity of the valve.
No valve or other obstruction isto be placed between
the relief valve and the tank. Do not connect tubing
AWARNING directly to discharge drain unless a 6 air gap is provid-
If this water heater will be used in beauty shops, ed. To prevent bodily injury, hazard to life, or property
barber shops, cleaning establishments, or self-set- damage, the relief valve must be allowed to discharge
vice laundries with dry cleaning equipment, it is water in quantities should circumstances demand. If
imperative that the water heater or water heaters the discharge pipe isnot connected to a drain or other
be installed so that combustion and ventilation air suitable means, the water flow may cause property
be taken from outside these areas, Refer to the damage.
"Locating The New Water Heater" section of this The Discharge Pipe:
manual and also the latest edition of the National • Must not be smaller in size than the outlet pipe size
Fuel Gas Code, ANSI Z223.1, also referred to as NFPA of the valve, or have any reducing couplings or
54 for specifics provided concerning air required, other restrictions.
• Must not be plugc_edor blocked.
• Must be of matenal listedfor hot water distribution.
AWARNING Must be installed so as to allow complete drainage
of both the temperature-pressure relief valve, and
A fire can start if combustible materials such as the discharge pipe.
clothing, cleaning materials, or flammable liquids Must terminate at an adequate drain.
are paced against or next to the water heater. Must not have any valve between the relief valve
and tank.
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