Timer Function; Sleep Function Mode; Auto-Restart Function; Ionizer/Plasma Dust Collector Function(Optional) - Carrier 38LUVH025N Service Manual

8.12 Timer function

8.12.1 Timing range is 24 hours, and the minimum resolution is 15 minutes.
8.12.2 Timer on. After turning off, the machine will turn on automatically when reaching the setting time.
8.12.3 Timer off. After turning on, the machine will turn off automatically when reaching the setting time.
8.12.4 Timer on/off. After turning off, the machine will turn on automatically when reaching the setting "on"
time, and then turn off automatically when reaching the setting "off" time.
8.12.5 Timer off/on. After turning on, the machine will turn off automatically when reaching the setting "off"
time, and then turn on automatically when reaching the setting "on" time.
8.12.6 The tolerance of timer is 1 minute per hour.

8.13 Sleep function mode

8.13.1 Operation time in sleep mode is 7 hours. After 7 hours the machine quits this mode and turns off.
8.13.2 In cooling, heating or auto mode sleep function is available.
Operation process in sleep mode is as follow:
After pressing ECONOMIC or SLEEP button on controller, the machine will turn into sleep mode.
When cooling, the setting temperature rises 1℃(be lower than 30℃) every one hour, 2 hour later the rising
stops and indoor fan is fixed as low speed.
When heating, the setting temperature descends 1℃(be lower than 30℃) every one hour, 2 hour later the
descending stops and indoor fan is fixed as low speed, and anti-cold-wind is available.
8.13.4 If user uses timer on function in sleep mode, sleep function will pause and not resume until reaches
the setting on time.
8.13.5 When user uses timer off function in sleep mode(or sleep function in timer off mode), if the timing
time is less than 7 hours, sleep function will be cancelled when reaching the setting time. If the timing time is
more than 7 hours, the machine will not stop until reaches the setting off time in sleep mode.

8.14 Auto-Restart function

The indoor unit is equipped with auto-restart function, which is carried out through an auto-restart module.
In case of a sudden power failure, the module restores the setting conditions before the power failure. The
unit will resume the previous operation setting (not including Swing function) automatically after 3 minutes
when power returns.

8.15 Ionizer/Plasma dust collector function(optional)

The indoor unit is equipped with Ionizer, which is controlled by the CLEAN AIR button on the remote
controller when the unit is turned on. Press the CLEAN AIR button to activate the function. Press it again to
stop the function.
During the time when Ionizer being controlled by remote controller, Ionizer will be turned off automatically,
if indoor fan stops running due to malfunctions or anti-cold-wind. When indoor fan restarts after malfunctions
being eliminated and anti-cold-wind being released, Ionizer will be available again.
Note: Ionizer and Plasma dust collector share a drive port on the chip, and action rule is the same.

8.16 Outdoor chassis heating cable (optional)

Heating cable is fixed on outdoor chassis to help deicing and to avoid freezing. The heating cable's
power is 85W, rated voltage is 220v-240v. If outdoor temperature is lower than 5℃, the heating cable begins
to work. If outdoor temperature is higher than 15℃, the heating cable stops working.
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