Mitsubishi Electric PL12AK User Manual page 24

5 Coil frost protection
When indoor coil temperature becomes 5°F or below,coil frost protection will proceed as follows.
<Start condition>
After the compressor has been continuously operated for 3 minutes or more,and the indoor coil temperature has been
5°F or below for 3 minutes,the coil frost protection will start.
<Coil frost protection>
Compressor stops for 6 minutes,and then restarts.
lf the start condition is satisfied again during the first 10 minutes of compressor operation,both the indoor and outdoor
units stop,displaying a check code of"P6"on the remote controller.
<Termination conditions>
Coil frost protection is released when the start condition is not satisfied again during the allowance, or when the COOL
mode stops or changes to another mode.
(2) Indoor fan control
Indoor fan speed LOW/HIGH depends on the remote controller setting.
However, if an outdoor unit abnormality is detected, the indoor fan speed will be LOW, regardless of the remote controller
setting.
( i ) Fan speed LOW/HIGH depends on the remote controller setting regardless of the thermostat ON/OFF.
(ii) Fan speed will remain on LOW if an abnormality in outdoor unit is detected. (5 minutes)
NOTE : Fan stops immediately if the unit stops or the check mode is started.
(3) Auto vane control
Auto vane position is set to 30degrees airflow at the start-up of COOL operation.
(a) Vane position set mode & swing mode.
( i ) Every time AIR DISCHARGE button is pressed, setting will be changed .
( ii ) Airflow direction can be changed with AIR DISCHARGE button.
1 Fan speed : LOW
30°
2 Fan speed : HIGH
30°
<VANE POSITION>
1 Fan speed : LOW
30
When 55 degrees or 70 degrees airflow is selected with the LOW fan speed in COOL operation, "AUTO RETURN" will
appear right side of the air direction display. One hour later, the airflow direction returns to 30 degrees automatically and
"AUTO RETURN" will disappear. If the airflow direction is set to 30 degrees during "AUTO RETURN" indication, the time
counting for AUTO RETURN is cancelled.
55°
45° 55°
55 70
AUTO RETURN
OC246-24
70° SWING
70° SWING
2 Fan speed : HIGH
30
45
55
70