Mitsubishi Electric MSH-XV07UV, Service Manual

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Mode
COOL mode of
"I FEEL CONTROL"
DRY mode of
"I FEEL CONTROL"
HEAT mode of
"I FEEL CONTROL"
Initial room temperature
Initial set temperature
26 :
23 : to 25 :
24 :
Initial room temperature
minus 2
:
Initial room temperature
minus 2
:
❈
1
26 : or more
25 : to 26 :
less than 23 :
(4) The initial set temperature is decided by the initial room temperature.
❈
1 When the system is restarted with the remote controller, the system operates with the previous set temperature regard-
less of the room temperature at restart.
The set temperature is calculated by the previous set temperature.
(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.
1 deg. 1.7 deg.
3 deg.
8-1-1. COOL mode of “I FEEL CONTROL”
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 : 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
Fan speed
Difference between room
temperature and set tem-
perature during operation
●
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 cool. 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 (°C)
…To lower the set temperature 1~2 degrees (°C)
TOO
COOL
TOO
WARM
2. Coil frost prevention
①
Temperature control
When the indoor coil thermistor RT12 reads 4°C or below(MSH-XV07/09UV) / 0°C or below(MSH-XV12UV) 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(MSH-XV07/09UV) / 0°C(MSH-XV12UV), this mode is prolonged until the RT12
reads over 4°C (MSH-XV07/09UV) / 0°C(MSH-XV12UV).
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