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Operating Your Heat Pump Water Heater
°F/°C
LOCK
HEAT PUMP
ELEMENT
EFFICIENCY
F
VACATION
ELECTRIC
HYBRID
EFFICIENCY
Power Button: On - Green
Standby - Red
Temperature
Down (Decrease)
Button
Temperature
Up (Increase)
Button
Operational Mode Buttons
Water
Temperature
Set Point
Water Heater
Mode/Status
Indicator
Water Heater
Efficiency Status
Icon
LCD Display Panel
Lock Button
Fahrenheit/Celsius
Temperature Display
Button
LCD Control
Panel Lock Icon
Heat Pump
Functioning
Icon
Element
Functioning
Icon
Figure 4 User Interface Module (UIM)
Turning the Unit On:
The power button is located at the bottom of the UIM,
below the display. There are two (2) conditions for the
power button indicated by color: RED-the unit is in
STANDBY and power is applied to the unit; GREEN-the
unit is ON. Press the power button to turn the unit on if
needed.
NOTE: All buttons on the User Interface are touch
sensitive and require only a light touch.
Adjusting Set Point Temperature:
The water temperature can be adjusted from 95°F to
150°F. Use the Up and Down Buttons on
the UIM to set the desired temperature.
IMPORTANT: Before attempting to adjust the
thermostat, read the information on water temperature
adjustment above. If the instructions are not clear,
contact a qualifi ed person.
IMPORTANT: Filling a spa or hot tub from this water
heater may result in extended recovery/re-heat time.
Switching (temporarily) to Hybrid Mode or Electric
Mode will decrease the recovery/re-heat time. Be sure
to switch back to the desired operational mode when
fi nished. The factory temperature set point is 120°F.
Notify homeowner if the set point is increased above
120° at any time for any reason. Return the set point to
a safe level upon completion of service work.
Selecting Operating Mode:
The operating mode can be changed by touching
the desired mode icon on the User Interface Module
(Figure 4).
NOTE: While vacation mode is on, the other modes
cannot be selected and set point temperature can not
be changed. Turn off vacation mode by pressing the
vacation mode button. Desired mode and set point can
now be selected.
EFFICIENCY
Effi ciency Mode - Is the most energy effi cient
mode. This mode uses the heat pump to heat
water in the tank. The elements are not used
unless the ambient operating temperature is
below 45°F or above 109°F.
HYBRID
Hybrid Mode - Combines high energy effi ciency
with reduced recovery time. This mode uses
the heat pump as the primary heating source.
The heating element will heat water if demand
exceeds a predetermined level so that the
set point temperature can be recovered more
quickly.
Electric Mode - The water heater functions as
a conventional electric unit, relying totally on
the elements to heat the water in the tank. This
mode may be useful in winter to eliminate the
output of cold air from the unit.
VACATION
Vacation Mode - The set point changes to 60°F
which is the temperature that will be
maintained. This mode is recommended for
periods of three (3) days or more in which the
water heater will be idle. Vacation Mode
minimizes energy consumption and minimizes
the risk of freezing during cold weather.
NOTE: To activate Vacation Mode touch the
Vacation Mode button. To deactivate Vacation
Mode, touch the Vacation Mode button again.
Other Controls
Lock - Holding this button for more than 3
seconds switches the lock mode on or off.
When the User Interface Module is locked a
symbol and “Lock” text will be visible on the
display and there will be no access to mode
change or set point change.
°F/°C
°F/°C - The button switches the display to
show the set temperature in Fahrenheit or
Celsius.
ELECTRIC