Mitsubishi Electric M Series Manual page 198

WALL-MOUNTED MSC/MS/MSH Series
a. COOL ( ) OPERATION
1. Coil frost prevention
When the temperature of indoor heat exchanger becomes too low, the coil frost prevention mode works.
The indoor fan operates at the set speed and the compressor stops. This mode continues until the temperature of indoor
heat exchanger rises.
2. Discharge temperature protection
The compressor is controlled by the temperature of discharge temperature thermistor RT62 for excess
compressor discharge pressure.
b. DRY ( ) OPERATION
The set temperature is determined from the initial room temperature.
However, when the coil frost prevention works while the indoor fan is OFF, the indoor fan speed becomes set speed.
c. FAN( ) OPERATION <MU>
(1) Press OPERATE/STOP (ON/OFF) button. OPERATION INDICATOR lamp of the indoor unit turns ON with a beep tone.
(2) Select FAN mode with OPERATION SELECT button.
(3) Select the desired fan speed. When AUTO, it becomes Low.
Only indoor fan operates.
Outdoor unit does not operate.
d. HEAT ( ) OPERATION <MUH>
Cold air prevention control
When the compressor is not operating or is starting, and the temperature of indoor heat exchanger and/or the room
temperature is low or when defrosting is being done, the indoor fan will stop or rotate in Very Low speed.
2. Discharge temperature protection <MUH-GD80>
Discharge temperature protection is as same as COOL mode.
3. Defrosting
Defrosting starts when the temperature of outdoor heat exchanger becomes too low.
The compressor stops once, the indoor/outdoor fans stop, the 4-way valve reverses, and the compressor re-starts.
This mode continues until the temperature of outdoor heat exchanger rises or the fixed time passes.
e."I FEEL CONTROL" (
(1) Press OPERATE/STOP (ON/OFF) button on the remote controller.
OPERATION INDICATOR lamp of the indoor unit turns ON with a beep tone.
(2) Select "I FEEL CONTROL" mode with OPERATION SELECT button.
(3) The operation mode is determined by the room temperature at start-up of the operation.
Initial room temperature
25 or more
23 to 25
<MUH>
Less than 23
C-196
<MU-GD80,MUH-GD80>
) OPERATION
Mode
COOL mode of
"I FEEL CONTROL"
DRY mode of
"I FEEL CONTROL"
HEAT mode of
"I FEEL CONTROL"
ON with a beep tone.
M series