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Set temperature is as shown on the right chart.
The system for dry operation uses the same refrigerant circuit as the
cooling circuit.
The compressor and the indoor fan are controlled by the room tem-
perature.
By such controls, indoor flow amounts will be reduced in order to
lower humidity without much room temperature decrease.
2-2. DRY ( ) OPERATION
95
86
77
68
59
50
ºF
50 59 68 77 86 95
Set temperature
Initial room temperature
Set temperature and
initial room temperature in dry mode
ºF
-1.8deg.
-1.3deg.
1. Thermostat control
Thermostat is ON or OFF by difference between room temperature and set temperature.
Initial temperature difference Thermostat
Room temperature minus set temperature : -1.8 degrees or more·······································ON
Room temperature minus set temperature : less than -1.8 degrees······································OFF
Set temperature
Difference between room
temperature and set temper-
ature during operation
2. Indoor fan speed control
(1) Indoor fan operates at the set speed by FAN SPEED CONTROL button.
In Auto the fan speed is as follows.
Set temperature minus room temperature:
3.6 degrees
or more
······································ High
Set temperature minus room temperature:
Between 0.4 and 3.6 degrees ····················
Med.
Set temperature minus room temperature: less than
0.4 degrees····································
Low
0.4deg.
3deg.
3.6deg.
7.2deg.
Initial temperature difference
Fan speed
Difference between room
temperature and set temper-
ature during operation
3deg.
3.6deg.
Set temperature
Difference between room
temperature and set temper-
ature during operation
1. Thermostat control
Thermostat is ON or OFF by difference between room temperature and set temperature.
Initial temperature difference Thermostat
Room temperature minus set temperature : less than 3.6 degrees····································ON
Room temperature minus set temperature : 3.6 degrees or more······································OFF
2. Indoor fan speed control
Indoor fan operates at the set speed by FAN SPEED CONTROL button.
When thermostat OFF (compressor OFF) fan speed becomes Very Low.
3. Coil frost prevention
Coil frost prevention is as same as COOL mode. (2-1.3.)
The indoor fan maintains the actual speed of the moment. However ,when coil frost prevention works while the compressor
is not operating it’s speed becomes the set speed.
4. Low outside temperature operation
Low outside temperature operation is as same as COOL mode. (2-1.4.)
2-3. HEAT ( ) OPERATION (MSZ)
In AUTO the fan speed is as follows.
Room temperature minus set temperature : 3.1 degrees or more·······························High
Room temperature minus set temperature : Between 1.8 and 3.1 degrees
···················
Med.
Room temperature minus set temperature : less than 1.8 degrees ····························Low
3.1deg.
4.5deg.
1.8deg.
Initial temperature difference
Difference between room
temperature and set temper-
ature during operation ( T)
Fan speed
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