Lux Products P721UTa Thermostat User Manual


 
and DOWN buttons, select the day that you want to copy from. Press the NEXT
button one time. Your copy from day should now be on steady with the day under
the word “TO” flashing. Use the UP and DOWN buttons to select the day that you
would like to copy to. A single short press of the COPY button will perform the
copy, and the day flashing under the word “TO” will have advanced to the next
following day. You may continue to perform short single presses of the COPY
button to keep copying from the original source day to the remaining days, one
after the other. Specific days may be skipped by pressing the UP button, to
advance past them while they are flashing under the word “TO”. Press the EXIT
button to return to the Normal Run screen.
TEMPERATURE SWING SETTING, OFFSET SETTING, AND TEMPERATURE
CALIBRATION:
NOTE: The Swing setting, Offset setting, and Calibration settings need to be
performed in a timely manner, as the thermostat will timeout and automatically
exit these adjustment screens after approximately 10 seconds without a button
press.
SWING DESCRIPTION: A thermostat works by turning your heating or cooling
system on and off whenever the room temperature varies from the desired set-
point temperature. The amount of this variation is called the Swing. Generally
your system should cycle on about 3 to 6 times per hour. A smaller swing
number makes the system cycle more frequently, so the room temperature is
more precise and constant. A larger swing number will make the system remain
on for a longer duration each time and decreases the number of cycles per hour.
There is only one Swing setting, and this determines the cut-in and cut-out
points for both the first and second stages (if present), in both Heat mode and
Cool mode. The swing setting range is between #1 and #9 (0.25°F to 2.25°F, in
0.25°F degree increments (or 0.14°C to 1.25°C, in 0.14°C degree increments for
Celsius)). Swing number 1 is the default setting.
OFFSET DESCRIPTION: This setting is shown as a number of degrees, and is
similar in nature to the Swing however this only effects the operation of the
second (auxiliary) heating stage, if present. The setting range for Offset is from
0°F to 9°F degrees (0°C to 5°C degrees). When set to 0 degrees, the second
heating stage is completely disabled while in regular Heat mode (Emergency Heat
mode will still function for heat pump configurations). The Offset value will
determine the number of degrees from the set point that will be required for the
25
ADVANCED FEATURES: