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refrigerants, swimming pool chemicals, water softener chemicals,
calcium and sodium chloride, waxes, and process chemicals are
typical compounds which are potentially corrosive. These materials
are corrosive at very low concentration levels with little or no odor to
reveal their presence.
Products of this sort should not be stored near the heater. Also, air
which is brought in contact with the water heater should not contain
any of these chemicals. If necessary, uncontaminated air should be
obtained from remote or outside sources.
CIRCULATING PUMP
Field installed circulating pumps should be of all bronze constructions.
To optimize the total storage capacity of a horizontal vessel, particularly
under low draw conditions, it is recommended to utilize a pump and
recirculation line sized to turn the entire storage capacity of the tank
once each hour (i.e., a 600 gallon tank would require a 10 gpm pump).
INSULATION BLANKETS
Insulation blankets are available to the general public for external use
on electric water heaters but are not necessary with this product. The
purpose of an insulation blanket is to reduce the standby heat loss
encountered with storage tank heaters. Your water heater meets or
exceeds the EPACT and ASHRAE/IES 90.1 standards with respect
to insulation and standby loss requirements, making an insulation
blanket unnecessary.
Should you choose to apply an insulation blanket to this heater, you
should follow these instructions below. Failure to follow these instruc-
tions can result in fire, serious personal injury, or death.
• Do not cover the temperature and pressure relief (T & P) valve
with an insulation blanket.
• 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 for placement on
the blanket directly over the existing labels.
TEMPERATURE-PRESSURE RELIEF VALVE
This water heater is provided with a properly rated/sized and
certified combination temperature - pressure relief valve by the
manufacturer. The valve is certified by a nationally recognized
testing laboratory that maintains periodic inspection of production
of listed equipment of materials as meeting the requirements for
Relief Valves for Hot Water Supply Systems, ANSI Z21.22 • CSA
4.4, and the code requirements of ASME.
If replaced, the new valve must meet the requirements of local
codes, but not less than a combination temperature and pressure
relief valve rated/sized and certified as indicated in the above
paragraph. The new valve must be marked with a maximum set
pressure not to exceed the marked hydrostatic working pressure
of the water heater (150 psi = 1,035 kPa) and a discharge capacity
not less than the water heater Btu/hr or KW input rate as shown on
the water heater's model rating plate.
Explosion Hazard
Temperature-pressure relief valve
must comply with ANSI Z21.22
and ASME code.
Properly sized temperature
and pressure relief valve must
be installed in opening provided.
Failure to install relief valve can
result in overheating and exces-
sive tank pressure.
Failure to follow these instructions
can cause serious injury or death.
For safe operation of the water heater, the temperature and pressure
relief valve must not be removed from its designated opening nor
plugged. The temperature-pressure relief valve must be installed
directly into the fitting of the water heater designed for the relief
valve. Install discharge piping so that any discharge will exit only
within 6 inches (15.2 cm) above, or external to the structure. Do not
pipe the discharge to a crawl space. Be certain that no contact is
made with any live electrical part. The discharge opening must not
be blocked or reduced in size under any circumstances. Excessive
length, over 30 feet (9.14 m), or use of 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 discharge piping directly to the drain
unless a 6" (15.2 cm) air gap is provided. To prevent bodily injury,
hazard to life, or property damage, the relief valve must be allowed
to discharge water in adequate quantities should circumstances
demand. If the discharge pipe is not connected to a drain or other
suitable means, the water flow may cause property damage.
CAUTION
Water Damage Hazard
•
Temperature-pressure relief valve discharge
pipe must terminate at adequate drain.
The Discharge Pipe:
• Shall not be smaller in size than the outlet pipe size of the valve,
or have any reducing couplings or other restrictions.
• Shall not be plugged or blocked.
• Shall not be exposed to freezing temperatures.
• Shall be of material listed for hot water distribution.
• Shall be installed so as to allow complete drainage of both the
Temperature-Pressure Relief Valve and the discharge pipe.
• Must terminate a maximum of six inches above a floor drain or
external to the building. In cold climates, it is recommended that the
discharge pipe be terminated at an adequate drain inside building.
• Shall not have any valve or other obstruction between the relief
valve and the drain.
The temperature-pressure relief valve must be manually operated
at least once a year. Caution should be taken to ensure that (1) no
one is in front of or around the outlet of the temperature-pressure
relief valve discharge line, and (2) the water manually discharged
will not cause any bodily injury or property damage because the
water may be extremely hot. If after manually operating the valve, it
fails to completely reset and continues to release water, immediately
close the cold water inlet to the water heater, follow the draining
instructions in this manual, and replace the temperature-pressure
relief valve with a properly rated/sized new one.
If you do not understand these instructions or have any questions
regarding the temperature-pressure relief valve call the toll free num-
ber listed on the back cover of this manual for technical assistance.
DANGER
12
Water temperature over 125°F (52°C)
can cause severe burns instantly
resulting in severe injury or death.
Children, the elderly and the physically
or mentally disabled are at highest risk
for scald injury.
Feel water before bathing or showering.
Temperature limiting devices such as
mixing valves must be installed when
required by codes and to ensure safe
temperatures at fixtures.
Read instruction manual for safe
temperature setting.
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