Mitsubishi Electric Mr.SLIM PKH-1.6FKA Technical & Service Manual page 40

(1) Compressor control
13-minute time delay
To prevent overload, the compressor will not start within 3 minutes after stop.
2The compressor runs when the room temperature is higher than the set temperature.
The compressor stops when the room temperature is equal to or lower than the set temperature.
3The compressor stops in check mode or during protective functions.
4The compressor will not start when the room temperature is below 18°C.
The compressor starts intermittent operation when the power is turned ON with room temperature above 18°C. The com-
pressor ON/OFF time depends on the thermostat ON/OFF and the following room temperatures.After 3-minute compres-
sor operation,
If the room temperature thermistor reads above 28°C with thermostat ON, the compressor will operate for 6 more min-
utes and then stop for 3 minutes.
If the room temperature thermistor reads 26°C—28°C with thermostat ON, the compressor will operate for 4 more min-
utes and then stop for 3 minutes.
If the room temperature thermistor reads 24°C—26°C with thermostat ON, the compressor will operate for 2 more min-
utes and then stop for 3 minutes.
If the room temperature thermistor reads below 24°C with thermostat ON, the compressor will stop for 3 minutes.
If the thermostat is OFF regardless of room temperature, the compressor will stop for 10 minutes.
5Coil frost protection
Coil frost protection in DRY operation is the same as in COOL operation.
6Coil frost prevention
Coil frost prevention does not operate in DRY operation.
(2) Indoor fan control
<PKH-2.5FKA-E / PKH-3FKA-E / PKH-4FKSA-E>
The indoor fan runs on LOW speed during compressor operation. The fan speed cannot be changed with the remote con-
troller. Also, the indoor fan does not run during compressor OFF.
<PKH-1.6FKA-E / PKH-2FKA-E>
(a)During compressor OFF
When the indoor coil temperature is 6°C or above, the indoor fan will stop.
When the indoor coil temperature is below 6°C, the indoor fan will run in DRY mode.
(b)During compressor ON
The indoor fan runs on EXTRA-LOW speed for the first 1 minute after the compressor is turned on.
After, the indoor fan runs in DRY mode.
<Dry mode>
The fan notch is controlled by the indoor coil temperature every 30 seconds.
Indoor coil temperature
Below -10°C
-10 to 0°C
Above 0°C
During compressor OFF, when the indoor coil temperature becomes 6°C or above, the indoor fan turns OFF immedi-
ately.
(3) Auto vane & drain pump controls
Same as in COOL operation
(4) Detecting abnormalities in the outdoor unit
An abnormality in the outdoor unit can not be detected in DRY operation.
Fan operation
LOW speed
EXTRA-LOW speed
Dry mode
40