Microprocessor Control - Mitsubishi Electric MSC-A07WV-E1 Service Manual

11

MICROPROCESSOR CONTROL

MSC-A07WV - MU-A07WV -
E1
MSC-A09WV - MU-A09WV -
E1
MSC-A12WV - MU-A12WV -
E1
Once the operation mode are set, the same operation mode can be repeated by simply turning the OPERATE/STOP
(ON/OFF) button ON. Indoor unit receives the signal with a beep tone.
When the system turns off, 3-minute time delay will operate to protect system from overload and compressor will not restart for
3 minutes.
WIRELESS REMOTE CONTROLLER
Signal transmitting section
Operation display section
OPERATE /STOP
(ON /OFF)button
ON/OFF
Open the front lid.
ON/OFF
FAN SPEED CONTROL button
I FEEL COOL
HEAT
DRY
/FAN
/
MODE
OPERATION SELECT button
ECONO COOL
ECONO COOL button
RESET button
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. Thermostat control
Thermostat is ON or OFF by difference between room temperature and set temperature
Room temperature minus set temperature : 0.3 : or more················································ON
Room temperature minus set temperature : less than -0.3 :············································OFF
2. 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.
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
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MUH-A07WV -
E1
MUH-A09WV -
E1
MUH-A12WV -
E1
PM
AM
TOO TOO
WARM COOL
TEMPERATURE buttons
CLOCK
PM
AM
TOO TOO
WARM COOL
FAN STOP
OFF-TIMER button
VANE START
ON-TIMER button
HR.
HR. button
MIN. button
MIN.
(TIME SET button)
RESET CLOCK
CLOCK SET button
VANE CONTROL button
Initial temperature difference
Initial temperature difference
MUX-A10WV -
E1
MUX-A19WV -
E1
MUX-A20WV -
E1
INDOOR UNIT DISPLAY SECTION
Operation Indicator lamp
The operation indicator at the right side of the indoor
unit indicates the operation state.
• The following indication does not
depend on the shape of lamp.
Operation Indicator
Indication Operation state
This shows that the
air conditioner is
operating to reach
the target temperature.
Please wait until the
target temperature is
obtained.
This shows that the
room temperature is
approaching the
target temperature.
Thermostat
Fan speed
84
MUX-A25WV -
E1 E1
MUX-A26WV -
E1 E1
E1
lighted
not lighted
Difference
between target
temperature
and room
temperature
Approx. 2 :
or more
Approx. 2 :
or less
Difference between room
temperature and set tem-
perature during operation
Set temperature
:
:
-0.3 0.3
Difference between room
temperature and set tem-
perature during operation
3 deg.
1 deg. 1.7 deg.