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ADDITIONAL
5
OPERATION FEATURES
Temporary Program Override
5.2
1. Press and hold
or
button for 3 seconds. The
entire display will flash once and the SET TEMP
indicator will be displayed. Release the
button and press the
or
button again as
desired to adjust the set temperature.
2. The display will return to normal operating mode
after 15 seconds or you can press RETURN button.
3. The program indicator (MORN, DAY, EVE or NIGHT) will be flashing in the display indicating
that a Temporary Program Override is in effect. The Temporary Program Override will
reset when the next setpoint time occurs or after 4 hours–whichever comes first.
Extended Hold (Vacation) Mode
5.3
1. Press the HOLD button to bypass the program
schedule. The current setpoint temperature will be
held either permanently or for 24 hours depending
on the setting selection made in section 4.3.
2. Press the HOLD button again to return the
thermostat to normal program operation.
3. The hold period lasts until the hold is released as in step #2 above, or is limited to 24 hours
if the default was changed in the User Options Settings (see section 4.3).
Filter Check Monitor (see section 4.3 for setting)
5.4
The Filter Check Monitor displays a reminder for
required filter replacement or cleaning, by flashing
the FILT segment in the display. See instructions
on your filter or heating/cooling unit for
recommendations for interval setting.
When the selected interval has been reached, and
required cleaning or replacement has been performed,
press the RETURN button in any normal mode to reset the timer and turn off the warning.
5.5
Locking the Keypad
To prevent accidental or undesired adjustment of the
thermostat, the Keypad Lockout feature disables the
operation of the keypad except for the backlight key.
In order to lock the keypad, press and hold both the
and
buttons together at the same time for
5 seconds. The LOCK segment in the display will
flash once per second, and then appear continuously
in the display. The keypad is now locked.
To unlock the keypad, press and hold the
second. The LOCK segment will disappear and the keypad will become unlocked.
cont.
or
and
buttons together at the same time for 1
8
ADDITIONAL
5
OPERATION FEATURES
Adaptive Recovery Mode (ARM™)
5.6
In order to maximize comfort and energy efficiency, this thermostat is equipped with an
Adaptive Recovery Mode (ARM™). This feature minimizes the amount of time required by
the heating or cooling system to reach the new setpoint, after a setback period is completed,
and assures your desired temperature is achieved at your set program times.
This feature activates when recovering room temperature from setback programs
to comfort programs, so it will only take place when the current (heating) program
setpoint temperature is lower than the upcoming program setpoint temperature, or the
current (cooling) program setpoint temperature is higher than the upcoming program
setpoint temperature.
During ARM™, room temperature is recovered gradually by turning on the heating or cooling
before the end of the set back period. The setpoint temperature is changed to that of the
upcoming comfort program temperature. The start time of recovery is based on the
difference between the current room temperature and the upcoming comfort program
setpoint temperature. The recovery to the upcoming setpoint starts 10 minutes before the
upcoming setpoint time for each degree of temperature change required, up to a maximum
of 2 hours.
ARM™ does not operate when the unit is in the HOLD mode, or if the program is
temporarily overridden.
Recirculating Fan Mode (see section 4.3)
5.7
The Recirculating Fan Mode provides more even temperature distribution and improves
indoor air quality by circulating air through the furnace filtration system more often. The
Recirculating Fan Mode by can be selected by moving the fan switch to the recirculate
position(
). If no call for heating or cooling occurs within the fan off cycle set in section
®
4.3, the fan will run for 12 minutes. The highest setting, 120 minutes (factory default), will
run the fan least often–9% minimum run time. The lowest setting, 40 minutes, will run the
fan most often–23% minimum run time. During any call for heating or cooling, the fan
operates in the AUTO mode. The Recirculating Fan feature is available in the HEAT, OFF, or
COOL mode.
High Temperature Safety Switch
5.8
While the thermostat is in the HEAT mode of operation (selector switch in the HEAT position),
the thermostat will mechanically turn-off if the room temperature raises higher than 99˚F
(37˚ C). There is also a software feature that will automatically turn-off the thermostat in
HEAT mode if the temperature raises higher than 93˚ F (34˚ C).
Low Temperature "Freeze" Protection
5.9
While the thermostat is in the HEAT mode of operation, on standard heating (non-heat
pump) applications, the thermostat will mechanically initiate a call for heat if the room
temperature drops to less than 41˚F (5˚ C). The system selector switch must be in the
HEAT position for this feature to be active. This feature will allow the thermostat to
initiate a call for heat on standard heating (non-heat pump) applications, to provide a
minimum amount of heat, even if the batteries are dead or missing. This feature is only
active on standard heating (non-heat pump) applications and is not available on single
stage heat pump applications.
cont.
9
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