Lux Products TX500U Installation And Operating Instructions Manual page 17

SWITCH #3 (PERIODS): [OFF/DOWN = 4, default] The thermostat uses four
temperature program periods in both heating and cooling (MORN, DAY, EVE,
and NITE). Each period has a separate start time and a set temperature.
[ON/UP = 2] The thermostat operates in the same manner as above, however
there are only two temperature program periods for heating and cooling
(DAY and NITE). This may be more convenient if you are typically home
during the day, and only need the set temperature to be different while you
are sleeping.
SWITCH #4 (SCALE): [OFF/DOWN = F, default] All temperature values are
displayed using the Fahrenheit scale. [ON/UP = C] This setting displays all
temperature values using the Celsius scale.
SWITCH #5 (TIME): [OFF/DOWN = 12 HR, default] This setting displays the
clock times and temperature program period start time values on the screen
using US standard AM and PM values. [ON/UP = 24 HR] This setting
displays the clock and temperature program period start time values on the
screen using the 24 HR military-time format (17:30 hours, 22:00 hours,
without using AM/PM).
SWITCH #6 (DELAY): [OFF/DOWN = 5 MIN, default] This sets the minimum
length of time that Heat or Cool must remain either On or Off, before it will
automatically switch to the alternate On or Off state. This internal delay
prevents rapid cycling of your system and provides equipment protection
particularly for cooling units. The 5-minute setting is fine for most
applications. [ON/UP = 2 MIN] If you feel that your system may need to
cycle more frequently than the thermostat is allowing, then you may use the
2-minute setting.
SWITCH #7 (RECOVERY): [OFF/DOWN = DISABLE, default] The Early
Recovery feature affects how the thermostat transitions from an energy
saving setback (DAY and NITE) program period, to a comfort (MORN and
EVE) program period temperature, when it is following the daily temperature
programs. When this is disabled, the thermostat makes a set temperature
change at the beginning of an upcoming period's start time. [ON/UP =
ENABLE] The Early Recovery feature will calculate the capability of your
system and turn on the heating or cooling early so that the temperature in
your home reaches the desired set point as close as possible to the start of
the period. During the time that the thermostat is performing a recovery, the
word "RECOV." will be shown in the display screen.
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