3
2. Indoor fan speed control
Indoor fan operates at the set speed by FAN SPEED CONTROL button.
In Auto the fan speed is as follows.
Initial temperature difference
Fan speed
Room temperature minus set temperature : 1.7 degrees or more····························High
Room temperature minus set temperature : Between 1 and 1.7 degrees················Med.
Room temperature minus set temperature : less than 1 degree ······························Low
3. Coil frost prevention
①
Temperature control
When the indoor coil thermistor RT12 reads 6°C or below for 5 minutes, the coil frost prevention mode starts.
The indoor fan operates at the set speed and the compressor stops for 5 minutes.
After that, if RT12 still reads below 6°C, this mode is prolonged until the RT12 reads over 6°C.
(5) TEMPERATURE buttons
In “I FEEL CONTROL” mode, set temperature is decided by the microprocessor based on the room temperature.
In addition, set temperature can be controlled by TOO WARM or TOO COOL buttons when you feel too cool or too warm.
Each time the TOO WARM or TOO COOL button is pressed, the indoor unit receives the signal and emits a beep tone.
●
Fuzzy control
When the TOO COOL or TOO WARM button is pressed, the microprocessor changes the set temperature, considering
the room temperature, the frequency of pressing TOO COOL or TOO WARM button and the user’s preference to heat or
cold. So this is called “Fuzzy control”, and works only in “I FEEL CONTROL” mode.
In DRY mode of “I FEEL CONTROL”, the set temperature doesn’t change.
… To raise the set temperature 1 ~ 2 degrees (
:
)
… To lower the set temperature 1 ~ 2 degrees (
:
)
TOO
COOL
TOO
WARM
1 deg. 1.7 deg.
3 deg.
Difference between room
temperature and set tem-
perature during operation
(4) The initial set temperature is decided by the initial room temperature.
❈
1
Mode
Initial room temperature
26°C or more
24°C
Initial room temperature
minus 2
°C
25°C to 26°C
Initial set temperature
DRY mode of
“I FEEL CONTROL”
COOL mode of
“I FEEL CONTROL”
more than13°C, less than 25°C
Initial room temperature
minus 2
°C
❈
1 When the system is restarted with the remote controller, the system operates with the previous set temperature
regardless of the room temperature at restart.
The set temperature is calculated by the previous set temperature.
-0.3
:
0.3
:
1-1.
COOL mode of “I FEEL CONTROL”
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 : 0.3
:
or more················································ON
Room temperature minus set temperature : less than -0.3
:
············································OFF
Set temperature
Difference between room
temperature and set tem-
perature during operation
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