Mitsubishi Electric CITY MULTI PLFY-M-VEM Series, Operation Manual

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3.2. Mode Selection
Each pressing of the [F1] button cycles
through the following operation modes.
Select the desired operation mode.
Cool Dry Fan
Auto Heat
• Operation modes that are not available to
the connected outdoor unit models will not
appear on the display.
What the blinking mode icon means
The mode icon will blink when other indoor units in the same
refrigerant system (connected to the same outdoor unit) are already
operated in a different mode. In this case, the rest of the unit in the
same group can only be operated in the same mode.
3.3. Temperature setting
<Cool, Dry, Heat, and Auto (Single set point)>
3. Operation
Cool
Room
Auto Set temp.
Mode Temp. Fan
Fri
F1 F2 F3 F4
Press the [F2] button to decrease the preset temperature, and press the
[F3] button to increase.
• Refer to the table on 3.1. for the settable temperature range for different
operation modes.
• Preset temperature range cannot be set for Fan/Ventilation operation.
• Preset temperature will be displayed either in Centigrade in 0.5- or
1-degree increments, or in Fahrenheit, depending on the indoor unit
model and the display mode setting on the remote controller.
Automatic operation (Single set point)
According to a set temperature, cooling operation starts if the room
temperature is too hot and heating operation starts if the room
temperature is too cold.
During automatic operation, if the room temperature changes and
remains 1.5 °C or more above the set temperature for 3 minutes, the
air conditioner switches to cool mode. In the same way, if the room
temperature remains 1.5 °C or more below the set temperature for
3 minutes, the air conditioner switches to heat mode.
Cool mode
3 minutes (switches
from heating to cooling)
Set tempe1.5°C
Set temperature
Set temperature -1.5°C
3 minutes (switches
from cooling to heating)
Because the room temperature is automatically adjusted in order to
maintain a fixed effective temperature, cooling operation is performed
a few degrees warmer and heating operation is performed a few
degrees cooler than the set room temperature once the temperature is
reached (automatic energy-saving operation).
28
Cool
Room
Auto Set temp.
Mode Temp. Fan
Fri
Example display
(Centigrade in 1-degree increments)
28.5
F1 F2 F3 F4
Cool
Room
Auto Set temp.
Mode Temp. Fan
Fri
2
Press the [F1] or [F2] button to move the cursor to the desired
temperature setting (cooling or heating).
Press the [F3] button to decrease the selected temperature, and [F4]
to increase.
• Refer to the table on 3.1. for the settable temperature range for
different operation modes.
• The preset temperature settings for cooling and heating in the “Auto”
(dual set point) mode are also used by the “Cool”/“Dry” and “Heat”
modes.
• The preset temperatures for cooling and heating in the “Auto” (dual
set point) mode must meet the conditions below:
• Preset cooling temperature is higher than preset heating temperature.
• The minimum temperature difference requirement between cooling and
heating preset temperatures (varies with the models of indoor units
connected) is met.
* If preset temperatures are set in a way that does not meet the minimum
temperature difference requirement, both preset temperatures will
automatically be changed within the allowable setting ranges.
Navigating through the screens
• To return to the Main screen ...... [RETURN] button
Automatic operation (Dual set point)
When the operation mode is set to the “Auto” (dual set point) mode,
two preset temperatures (one each for cooling and heating) can be
set. Depending on the room temperature, indoor unit will automatically
operate in either the “Cool” or “Heat” mode and keep the room
temperature within the preset range.
The graph below shows the operation pattern of indoor unit operated in
the “Auto” (dual set point) mode.
Operation pattern during Auto (dual set point) mode
HEAT COOL HEAT COOL
Preset temp.
(COOL)
Preset temp.
(HEAT)
Room
temperature
The room temperature
changes corresponding
to the change in the
outside temperature.
<Auto (dual set point) mode>
Preset temperature
for cooling
Preset temperature
for heating
1
The current preset temperatures will appear. Press the [F2] or [F3]
button to display the Settings screen.
F1 F2 F3 F4
26.5
Preset temperature
for cooling
Preset temperature
for heating
F1 F2 F3 F4
6
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