Optional Functions - Carrier 42QFD048D8S Service Manual

4. Optional Functions

4.1 8°C Heating
In heating mode, the temperature can be set to as low
as 8°C, preventing the indoor area from freezing if
unoccupied during severe cold weather.
4.2 Self clean
• If you press "Self Clean" when the unit is in cooling or
drying mode:
• The indoor unit will run in low fan mode for a
certain time, then ceases operation.
• Self Clean keeps the indoor unit dry and prevents
mold growth.
• When match with multi outdoor unit, this function is
disabled.
4.3 Follow me
• If you press "Follow Me" on the remote, the indoor
unit will beep. This indicates the follow me function is
active.
• Once active, the remote control will send a signal
every 3 minutes, with no beeps. The unit automatically
sets the temperature according to the measurements
from the remote control.
• The unit will only change modes if the information
from the remote control makes it necessary, not from
the unit's temperature setting.
• If the unit does not receive a signal for 7 minutes or
you press "Follow Me," the function turns off. The
unit regulates temperature based on its own sensor
and settings.
4.4
• Press "Silence" on the remote control to enable the
SILENCE function. While this function is active, the
compressor frequency is maintained at a lower level
than F3. The indoor unit will run at faint breeze, which
reduces noise to the lowest possible level.
• When match with multi outdoor unit, this function is
disabled.
4.5
• The indoor unit has an auto-restart module that
allows the unit to restart automatically. The module
automatically stores the current settings and, in the
case of a sudden power failure, will restore those
setting automatically after power returns.
4.6
With this new technology, the display area will show "EC"
or "EL 0C" when the outdoor unit detects refrigerant
leakage.
 Product Features
Silence
Auto-Restart function
Refrigerant Leakage Detection
7 