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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 PROPERTY DAMAGE. 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 less than 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
I The 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 BE PRESENTOR STORED
with ANSI Z21.22 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 (such as 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°r
serioUSdamage.burns
to 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. Be certain 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
reduce the discharge capacity of the valve.
No valve or other obstruction is to 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 is not 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 listed for 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.
2
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