12
2. Indoor fan speed control
Indoor fan operates continuously at the set speed by FAN SPEED CONTROL button regardless of the thermostat’s OFF-
ON. [When the thermostat turns OFF, the indoor fan stops running to reduce power consumption.
After that, the indoor fan stops for 60 seconds and then operates at Very Low for 10 seconds to sense accurate room
temperature. The indoor fan alternates ON and OFF at this interval while the thermostat is OFF.
When the room temperature rises and the thermostat is ON, the indoor fan starts running according to the settings on the
remote controller. (
MSZ-GE60/71VA
)]
[When the thermostat turns OFF, the indoor fan operates at very Low to reduce power consumption. When the room tem-
perature rises and the thermostat turns ON, the indoor fan starts running according to the settings on the remote controller
(
MSZ-EF
)]
In AUTO, the fan speed is as follows.
3. Coil frost prevention (MSZ)
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, its speed becomes the set speed.
4. Low outside temperature operation (MUZ-GC/FD/GE/EF)
Low outside temperature operation is as same as COOL mode. (2-1.4.)
NOTE:
When 2 or more indoor units are operated with a multi type outdoor unit, the fan operates intermittently at Very Low or
stops in the thermostat-OFF units while at least one unit is thermostat-ON.
High
Med.
Low
1.75°C
2.5°C
1°C
Fan speed
Room temperature minus
set temperature (During operation)
Room temperature minus
set temperature (Initial)
Between 1 and 1.75°C
Less than 1°C
1.75°C or more
2-2. DRY ( ) OPERATION
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 air flow amounts will be reduced in order to
lower humidity without much room temperature decrease.
35
30
25
20
15
10
10 15 20 25 30 35
Set temperature (°C)
Initial room temperature (°C)
Set temperature and
initial room temperature in dry mode
1. Thermostat control (MSZ)
Thermostat turns ON or OFF by the difference between room temperature and set temperature.
ON
OFF
-2°C
-1.75°C (
MSZ-GE25/35/42,EF25/35/42/50
)
-2°C
-0.75°C (
Other models
)
Thermostat
Room temperature minus
set temperature (Initial)
Room temperature minus
set temperature (During operation)
-2
°C
or more
Less than -2
°C
2-3. HEAT ( ) OPERATION
1. Thermostat control (MSZ)
Thermostat turns ON or OFF by the difference between room temperature and set temperature.
ON
1°C or more
Less than 1°C
0.75°C
1°C (
MSZ-GE60/71,EF25/35/42/50
)
Room temperature minus
set temperature (During operation)
Room temperature minus
set temperature (Initial)
Thermostat
OFF
ON
2°C or more
Less than 2°C
1.75°C
2°C (
Other models
)
OFF
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.
High
Med.
Low
Fan speed
Room temperature minus
set temperature (During operation)
Room temperature minus
set temperature (Initial)
Between 0.25 and 2°C
Less than 0.25°C
2°C or more
0.25°C
1.75°C
2°C
4°C
