Indoor Unit Control - Mitsubishi Electric Mr.Slim PKH-2FKA Technical & Service Manual

2. INDOOR UNIT CONTROL

2-1 COOL operation
CHECK
<COOL operation time chart>
ON
Thermostat
OFF
ON
Indoor fan
OFF
CLOSE
Auto vane
ON
Compressor OFF
w1 Even if the room temperature rises above the set temperature during this period, the compressor will not start until this
period has ended.
(1) Compressor control
1 3-minute time delay
To prevent overload, the compressor will not start within 3 minutes after stop.
2 The compressor runs when room temperature is higher than set temperature.
The compressor stops when room temperature is equal to or lower than the set temperature.
3 The compressor stops in check mode or during protective functions.
4 Coil frost prevention
To prevent indoor coil frost, the compressor will stop when the indoor coil thermistor (RT2) reads 1°C or below after the
compressor has been continuously operated for at least 16 minutes or more. When the indoor coil temperature rises to
10°C or above, the compressor will start after a 3-minute time delay.
NOTE : By turning OFF the dip switch SW1-5, PKH-2.5/3/4 for J1-5 on indoor controller board, the start temperature of coil
frost prevention changes 1°C to -3°C.
FILTER
CHECK MODE
TEST RUN
Operation starts by Room temperature
P O W E R b u t t o n becomes equal to
ON. set temperature.
LOW or HIGH
Initially 10˚ degrees
(Changeable by remote controller setting)
<How to operate>
1 Press POWER ON/OFF button.
2 Press the
button to display " f ".
3 Press the i TEMP button to set the desired temperature.
NOTE: The set temperature changes 1°C when the
button is press one time Cooling 19 to 30°C.
Room temperature
rises above set
temperature.
LOW or HIGH
Minimum 3 minutes w1
33
Operation stops by
P O W E R b u t t o n
OFF.
CLOSE
or