103
11-1. COOL (
) OPERATION
(1) Press OPERATE/STOP(ON/OFF) button.Operation indicator lamp of the indoor unit turns on with a beep
tone.
(2) Select COOL mode with the OPERATION SELECT button.
(3) Press TEMPERATURE buttons (TOO WARM or TOO COOL button)to select the desired temperature.
The setting range is 16 ~ 31°C
1 deg. 1.7 deg.
2 deg. 4 deg.
Compressor
Outdoor fan
OFF
ON
( continuously at set speed)
Indoor fan
ON
ON
OFF
1. Indoor fan speed control
Indoor fan operates continuously at the set speed by FAN SPEED CONTROL button regardless
of thermostat’s OFF-ON.
In Auto the fan speed is as follows.
Initial temperature difference
Room temperature minus set temperature : 2 degrees or more··································Hi
Room temperature minus set temperature : Between 1 and 2 degrees······················Me
Room temperature minus set temperature : less than 1 degree··································Lo
2. Coil frost prevention
①
Temperature control
When the indoor coil thermistor RT12 reads 4°C or below(MSC-07/09RV) / 0°C or below(MSC-12RV) 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 4°C (MSC-07/09RV) / 0°C (MSC-12RV), this mode is prolonged until the RT12
reads over 4°C (MSC-07/09RV) / 0°C (MSC-12RV).
②
Time control
When the three conditions as follows have been satisfied for 1 hour and 45 minutes, the compressor stops for 3 min-
utes. The indoor fan operates at the set speed.
a. Compressor has been continuously operating.
b. Indoor fan speed is Lo or Me.
c. Room temperature is below 26°C.
When compressor stops, the accumulated time is cancelled. When compressor restarts, time counting starts
from the beginning.
Time counting also stops temporarily when the indoor fan speed becomes Hi or the room temperature exceeds
26°C. However, when two of the above conditions (b.and c.) are satisfied again, time accumulation is resumed.
Fan speed
Difference between room
temperature and set tem-
perature during operation
Operation chart
Example
11-2. DRY (
) OPERATION
(1) Press OPERATE/STOP(ON/OFF) button.
Operation indicator lamp of the indoor unit turns on with a beep
tone.
(2) Select DRY mode with the OPERATION SELECT button.
(3) The microprocessor reads the room temperature and determines
the set temperature. Set temperature is as shown on the right
chart.
DRY operation will not function when the room temperature is 13°C
or below.
(4) When DRY operation functions the fan speed is lower than cool
operation expect at (fan speed) Lo notch.
35
30
25
20
15
10
:
10 15 20 25 30 35
Set temperature
Initial room temperature
Set temperature and
initial room temperature in dry mode
:
