Mitsubishi PK12FK Instruction Manual page 36

(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.
The compressor maintains the previous state when the room temperature minus the set temperature is 0°F or more, or
lower than 2°F.
3 The compressor stops in check mode or during protective functions.
4The compressor will not start when the room temperature is 64°F or below.
The compressor starts intermittent operation when the power is turned ON with room temperature above 64°F. The com-
pressor ON/OFF time depends on the thermostat ON/OFF and the following room temperatures.After 3-minute compressor
operation,
If the room temperature thermistor reads above 82°F with thermostat ON, the compressor will operate for 6 more minutes
and then stop for 3 minutes.
If the room temperature thermistor reads 79°F to 82°F with thermostat ON, the compressor will operate for 4 more min-
utes and then stop for 3 minutes.
If the room temperature thermistor reads 75°F to 79°F 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 75°F 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.(Refer to " 2-1 COOL operation".)
6Coil 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 43°F or more, or the compressor is OFF and the
pipe temperature is below 43°F.
(a)During compressor OFF
When the indoor coil temperature is 43°F or above, the indoor fan will stop.
When the indoor coil temperature is below 43°F, 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 indoor coil temperature every 30 seconds.
Fan control in DRY operation.
Compressor OFF
Compressor ON
(3) Auto vane control
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.
Pipe temp. Fan
43°F or more STOP
Below 43°F LOW
All LOW
OC196A-36