Carrier 40MPHA Service Manual page 16

Forced Operation Function
• Forced COOLING Mode
The compressor and outdoor fan continues to run and the indoor
fan runs at rated speed. After running for 30 minutes, the air
conditioner switches to AUTO mode with a preset temperature
of 75°F (24°C).
• Forced AUTO Mode:
Forced auto mode operates the same as normal AUTO mode
with a preset temperature of 75°F (24°C).
•The unit exits the forced operation when it receives the following
signals:
• Switch on
• Switch off
• Timer on
• Timer off
• Changes in:
• Mode
• Fan Speed
• Setting Temperature
Timer Function
• The Timing range is 24 hours.
• Timer on. The machine turns on automatically when reaching the
setting time.
• Timer off. The machine turns off automatically when reaching the
setting time.
• Timer on/off. The machine turns on automatically when reaching
the setting "on" time, and then turns off automatically when
reaching the setting "off" time.
• Timer off/on. The machine turns off automatically when reaching
the setting "off" time, and then turns on automatically when
reaching the setting "on" time.
• The timer function will not change the AC current operation mode.
Suppose the AC is off now, it will not start up first after setting the
"timer off" function. And when reaching the setting time, the timer
LED will be off and the AC running mode has not been changed.
• The setting time is relative time.
• The AC will quit the timer function when it has malfunction.
SLEEP Function
• The SLEEP function is available in COOLING, HEATING, or
AUTO modes.
• The operational process for sleep mode is as follows:
•When cooling, the temperature rises 2°F (1°C) (to not higher
than 86°F (30°C)) every hour. After 2 hours, the temperature
stops rising and the indoor fan is fixed at low speed.
•When heating, the temperature decreases 2°F (1°C) (to not
lower than 61°F (16°C)) every hour.
•After 2 hours, the temperature stops decreasing and the indoor
fan is fixed at low speed. Anti-cold wind function takes
priority.
• The operating time for the SLEEP mode is 8 hours, after which,
the unit exits this mode and turns off.
• The timer setting is available in this mode.
16
Auto-Restart Function
• 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 within 3 minutes after power returns.
• If there is a power failure while the unit is running, the compressor
starts 3 minutes after the unit restarts. If the unit was already off
before the power failure, the unit stands by.
46°F (8°C) Heating
In the HEATING mode, the temperature can be set to as low as 46°F
(8°C), preventing the indoor area from freezing if unoccupied during
severe cold weather.
ECO Function
• Used to enter the energy efficient mode.
•Under the COOLING mode, press ECO, the remote controller
adjusts the temperature automatically to 75°F (24°C), AUTO fan
speed to save energy (however only if the set temperature is less
than 75°F (24°C). If the set temperature is more than 75°F
(24°C) and 86°F (30°C), press ECO, the fan speed will change to
AUTO, the set temperature will remain unchanged.
• When AC receives signals, such as switch off, Turbo operation,
Silence operation, Self Clean operation, Forced COOLING
operation, mode setting, SLEEPING mode, or adjusting the set
temperature to less than 75°F (24°C), it will exit the ECO
operation.
• Operation time in ECO mode is 8 hours. After 8 hours the air
conditioner exits this mode.
• If there is a malfunctioning temperature sensor in, the air
conditioner will exit ECO mode.
• The indoor fan runs at auto fan when it enters the ECO mode. The
setting temperature and setting fan speed can be changed with the
remote controller.
Self Clean
• Press "Self Clean" when the unit is in the COOLING or
DRYING mode, the indoor unit runs at the low fan speed for 16
minutes then turn off.
• Self Clean keeps the indoor unit dry and prevents mold growth.
Follow Me
• If you press "Follow Me" on the remote controller, the indoor unit
will beep. This indicates the "Follow Me" function is active.
• Once active, the remote controller will send a signal every 3
minutes, with no beeps. The unit automatically sets the
temperature according to the measurements from the remote
controller.
• The unit will only change modes if the information from the
remote controller 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.
Specifications subject to change without notice. 40MPHA-03SM