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However, if itis adjusted above thefactory s etpoint o f 120°F
(49°C), itisrecommended
that i tnotbesethigher than thelower
thermostat setting.
Theupper a ndlower t hermostats
areadjustable ifa different
watertemperature i s desired. R eadall warnings in the
"Temperature-Regulation"
section b efore p roceeding.
1. Turn "OFF" t heelectric p ower t othewaterheater a tthe
junction b ox.
• Before removing a ny access
panels o r servicing t hewater
heater, make sure theelectrical
supply to thewaterheater i s
turned " OFF".
• Failure todothiscould r esult in
death, s erious b odily i njury, or
property damage.
2. Take o ff t heupper and/or lower access panel(s), then fold the
insulation back toexpose t hethermostat.
3. The slotted adjustment (using a screwdriver)
canbeturned
clockwise (
t_
) to increase the temperature setting or counter
clockwise ( _
) to decrease the temperature setting.
4. Replace the insulation and access panel.
5. Turn "ON" the power supply.
Anode Rod Inspection
Property
Damage
Hazard
• Avoid water heater damage.
• Inspection and replacement of anode as needed.
Each water heater contains at least one anode rod, which will
slowly deplete (due to electrolysis) prolonging the life of the
water heater by protecting the glass-lined tank from corrosion.
Adverse water quality, hotter water temperatures,
high hot
water usage, hydronic heating devices, and water softening
methods can increase the rate of anode rod depletion. Once
the anode rod is depleted, the tank will start to corrode,
eventually developing a leak.
Certain water conditions wilt cause a reaction between the
anode rod and the water. The most common complaint
associated with the anode rod is a "rotten egg smell" produced
from the presence of hydrogen sulfi de gas dissolved in
the water. IMPORTANT: Do not remove this anode rod
permanently as it will void any warranties. A special anode
rod may be available if water odor or discoloration occurs.
NOTE: This anode rod may reduce but not eliminate water
odor problems. The water supply system may require special
fi Itration equipment from a water conditioning company to
successfully eliminate all water odor problems.
Artificially softened water is exceedingly corrosive because the
process substitutes sodium ions for magnesium and calcium
ions.
The anode rod should be inspected after a maximum of three
years and annually thereafter until the condition of the anode
rod dictates its replacement.
NOTE: Artificially softened water
requires the anode rod to be inspected annually.
The following are typical (but not all) signs of a depleted
anode rod:
•
The majority of the anode rod's diameter is less than 318".
•
Signifi cant sections of the support wire (approx. 1/3 or
more of the anode rod's length) are visible.
Exposed
Pitted
Exposed
Support
Anode
Support
Wire
Rod
Wire
FIGURE 27.
If the anode rod show signs of either or both it should be
replaced. NOTE: Whether re-installing or replacing the anode
rod, check for any leaks and immediately correct if found.
In replacing the anode:
1.
Turn off power to the water heater.
2.
Shut off the water supply and open a nearby hot water
faucet to depressurize the water tank.
3.
Drain approximately 5 gallons of water from tank. (Refer
to "Draining and Flushing" for proper procedures). Close
drain valve.
4.
Remove old anode rod.
5.
Use Teflon@ tape or approved pipe sealant on threads
and install new anode rod.
6.
Turn on water supply and open a nearby hot water faucet
to purge air from water system. Check for any leaks and
immediately correct any if found.
7.
Restart the water heater as directed in this manual. See
the Repair Parts Illustration for anode rod location.
Temperature-Pressure
Valve Operation
The temperature-pressure
relief valve must be manually operated
at least once a year.
• Burn hazard
• Hotwater discharge.
• Keep clear
of relief valve
discharge outlet.
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 wilt not cause any property damage or bodily injury.
The water may be extremely hot.
19
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