Mitsubishi PKH-1.6GKLH Technical & Service Manual page 26

(1) Compressor control
1 -minute time delay
To prevent overload, the compressor will not start within -minutes after stop.
2 The 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.
3 The compressor stops in check mode or during protective functions.
4 The 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 -minute compres-
sor operation,
● If the room temperature thermistor reads above 28°C with thermostat ON, the compressor will operate for 6 more minutes
and then stop for  minutes.
● If the room temperature thermistor reads above 26°C—28°C with thermostat ON, the compressor will operate for 4
more minutes and then stop for  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  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.
5 Coil frost protection
Coil frost protection in DRY operation is the same as in COOL operation.
6 Coil frost prevention
Coil frost prevention does not operate in DRY operation.
(2) Indoor fan control
The indoor fan runs on LOW speed during compressor operation. The fan speed cannot be changed with the remote con-
troller. Also, the fan runs on LOW speed when the pipe temperature is 6°C or more, or the compressor is OFF and the pipe
temperature is below 6°C.
(a) During compressor OFF
● When the pipe temperature is 6°C or above, the indoor fan will stop.
● When the pipe temperature is below 6°C, the indoor fan will run on LOW speed.
(b) During compressor ON
● The indoor fan runs on LOW speed.
<Dry mode>
The fan notch is controlled by the pipe temperature every 0 seconds.
Fan control in DRY operation.
Compressor OFF
Compressor ON
(3) Auto vane
The same operation as the in COOL.
(4) Detecting abnormalities in the outdoor unit
An abnormality in the outdoor unit can not be detected in DRY operation.
OC229A
Pipe temp. Fan
6C or more STOP
Below 6C LOW
All LOW
26