Rheem ELDS30-TB 208 VOLT 9 KW Commercial Electric Water Heaters

Use and Care Manual - Page 18

For ELDS30-TB 208 VOLT 9 KW.

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18
Safety Controls
The water heater is equipped with a
combination thermostat and temperature
limiting control (ECO) that is located
above the heating element in contact with
the tank surface. If for any reason the water
temperature becomes excessively high, the
temperature limiting control (ECO) breaks
the power circuit to the heating element.
Once the control opens, it must be reset
manually.
CAUTION: The cause of the high
temperature condition must be
investigated by qualified service
technician and corrective action must
be taken before placing the water
heater in service again.
To reset the temperature limiting control:
Turn off the power to the water
heater.
Remove the jacket access panel(s)
and insulation.
The thermostat protective cover
should not be removed.
Press the red RESET button.
Replace the insulation and jacket
access panel(s) before turning on the
power to the water heater.
!
DANGER: To reduce the risk of
electric shock, disconnect all branch
circuits before opening the access
panel(s). The water heater may be
connected to more than one branch
circuit.
Safety Precautions
DO turn off power to water heater if
it has been subjected to over heating,
fire, flood, physical damage.
DO NOT turn on water heater unless
it is completely filled with water.
DO NOT turn on water heater if cold
water supply shut-off valve is closed.
If there is any difficulty in
understanding or following the
Operating Instructions or the Care
and Cleaning section, it is
recommended that a qualified service
technician perform the work.
Operating the water heater.
CAUTION: Hydrogen gas can be produced in a hot water system served by this water heater that has not been
used for a long period of time (generally two weeks or more). HYDROGEN GAS IS EXTREMELY
FLAMMABLE!! To dissipate such gas and to reduce risk of injury, it is recommended that the hot water faucet be
opened for several minutes before using any electrical appliance connected to the hot water system. If hydrogen is
present, there will be an unusual sound such as air escaping through the pipe as the water begins to flow. DO NOT
smoke or use an open flame near the faucet at the time it is open.
WARNING: If the water
heater has been subjected
to fire, flood or physical
damage, turn off power to
water heater, and DO NOT
operate the water heater
again until it has been
checked by a qualified
service technician.
NOTICE: DO NOT use
this appliance if any part
has been under water.
Immediately call a qualified
installer or service agency
to replace a flooded water
heater. DO NOT attempt
to repair the unit! It must
be replaced.
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