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characteristics, you should refer to your heat pump literature to determine when
to disable the heat pump and run in Emergency Heat mode. In general for most
heat pump systems, use Emergency Heat mode whenever the outside
temperature is less than 32°F (0°C) degrees.
LCD DISPLAY BACKLIGHT: The display screen is lighted to assist viewing at
nighttime, or in locations with low light levels. A press of any button on the front
panel will light the display for approximately 10 seconds. Any button presses
that occur while the light is on will reset the 10-second timer, causing the screen
to remain illuminated for an additional 10 seconds.
TEMPERATURE OVERRIDE: While in Program RUN mode, the set temperature can
be temporarily changed by pressing UP or DOWN. The set temperature will return
to the programmed value stored in memory when the start time of the next
upcoming program period is reached (Morn, Day, Eve, Nite). While a Temporary
Override is in effect, the word “OVERRIDE” will be shown in the display screen.
An Override may be cancelled moving the mode switch to OFF, then back to HEAT
or COOL.
TEMPERATURE HOLD: A Temperature Hold is used for maintaining a fixed set
temperature. Once a Hold is initiated, the thermostat will maintain the set
temperature indefinitely. A Hold may be used for days, weeks, or even months at
a time, as long as the thermostat has adequate power. To enter Hold mode:
press the HOLD button one time and the word “HOLD” will appear in the display.
To cancel a Hold, press the HOLD button one more time. If a complete power
failure occurs during a Temperature Hold, the thermostat will continue to remain
in Hold mode even after the power comes back on. NOTE: If you plan to leave
the thermostat in Hold mode for an extended duration (unattended), it is
advisable to install new Energizer
®
or DURACELL
®
"AA" size alkaline batteries
prior to leaving to ensure reliable operation of your heating and cooling system.
STATIC NOTICE: This thermostat is protected against normal static electric
discharges, however to minimize the risk of damaging the unit in extremely dry
weather, please touch a grounded metal object before touching your thermostat.
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