Operational Modes; Electric Heat Only; Temperature Settings - Rheem Residential 40 & 50 Gallon Use & Care Manual

Basic Water Heater Operation
For the most efficient operation of the
heat pump water heater, the "Energy
Saver" mode is recommended. Press
the key on the control pad labeled "En-
ergy Saver". The corresponding LED
will light up upon activation.
If the "Energy Saver" setting does not
supply enough hot water or additional
hot water is needed, use the "Normal"
setting. Press the key on the control
pad labeled "Normal". The correspond-
ing LED will light up upon activation.
If electric heat only is desired, press
the "Electric Heat Only" option in the
bottom right corner of the control.
Heat Pump Water Heater Sequence of Operation

Operational Modes:

Two major modes of operation will be
utilized:
Energy Saver
This mode will provide functional
control operation resulting in water
heater performance that meets
Energy Star requirements. As a
result, compressor operation will be
maximized and use of electric heat will
be minimized.
Normal / High Demand
This mode will maximize the
performance of the water heater while
still providing good energy savings.
Primary goal is to maintain water
heater performance that meets or
exceeds a comparable electric water
heater.

Temperature Settings:

Normal / Warm
Tank temperature will be maintained
at 120-124º F. Compressor operation
will be allowed whenever the tank
temperature at the lower heating
element location falls to 105º F or
below.
This mode will run for approximately
2 weeks then return to the mode and
temperature settings set by the user.
If the water temperature setting needs
adjustment, use the up arrow key to in-
crease water temperature and the down
arrow key to decrease water tempera-
ture.
As the temperature of the water increas-
es, the led lights on the right side of the
"Temperature Setting" will illuminate to
indicate the temperature of the water.
To turn the water heater "OFF", press
the "OFF" key in the bottom left corner
of the control pad.
Hot
Tank temperature will be maintained
at 130-135º F. Compressor operation
will be allowed whenever the tank
temperature at the lower heating
element falls to 110º F or below.
Vacation
Tank temperature will be maintained
at about 90º F. Compressor operation
will be allowed whenever the tank
temperature at the lower heating
element falls to 80º F or below. All
other functional aspects will be
maintained as described below.

Electric Heat Only:

This mode is utilized in conjunction
with Normal, Hot, and Vacation modes.
In this mode compressor operation
will not be allowed and only the
auxiliary electric heat will be allowed.
Temperature set points noted with each
of the modes will be used to turn the
auxiliary electric heat on as required.
This mode can only be utilized on
a short term basis. Currently, this
mode will be allowed for a period
of 2 weeks. After this time period,
the water heater will be returned to
the mode and temperature settings
previously set by the user.
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