Mitsubishi Electric PEA-RP250WKA Operation Manuals page 7

3. Operation
Information for multi system air conditioner (Outdoor
unit: MXZ series)
► M ulti system air conditioner (Outdoor unit: MXZ series) can
connect two or more indoor units with one outdoor unit.
According to the capacity, two or more units can operate
simultaneously.
• When you try to operate two or more indoor units with one outdoor
unit simultaneously, one for the cooling and the other for heating, the
operation mode of the indoor unit that operates earlier is selected.
The other indoor units that will start the operation later cannot operate,
indicating an operation state in flashing.
In this case, please set all the indoor units to the same operation mode.
• There might be a case that the indoor unit, which is operating in
(AUTO) mode. Cannot change over to the operating mode (COOL ↔
HEAT) and becomes a state of standby.
• When indoor unit starts the operation while the defrosting of outdoor
unit is being done, it takes a few minutes (max. about 15 minutes) to
blow out the warm air.
• In the heating operation, though indoor unit that does not operate may
get warm or the sound of refrigerant flowing may be heard, they are
not malfunction. The reason is that the refrigerant continuously flows
into it.
Automatic operation
■ 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 2 °C or more above the set temperature for 15 minutes, the
air conditioner switches to cooling mode. In the same way, if the room
temperature remains 2 °C or more below the set temperature for 15
minutes, the air conditioner switches to heating mode.
Cooling mode
15 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).
3.3. Temperature setting
3.3.1. For wired remote controller
<Cool, Dry, Heat, and Auto>
Fri
Room
Cool Set temp.
Mode Temp. Fan
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 page 6 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.
15 minutes (switches
from heating to cooling)
Set temperature +2°C
Set temperature
Set temperature -2°C
Fri
28.5
Room
Cool Set temp.
28.5
Mode Temp. Fan
Example display
(Centigrade in 0.5-degree increments)
3.3.2. For wireless remote controller
► To decrease the room temperature:
button ③ to set the desired temperature.
Press
The selected temperature is displayed 3.
• Each time you press the button, the temperature value decreases by 1 °C.
► To increase the room temperature:
button ③ to set the desired temperature.
Press
The selected temperature is displayed 3.
• Each time you press the button, the temperature value decreases by 1 °C.
• Available temperature ranges are as follows:
Cooling/Drying: 19 - 30 °C
Heating: 17 - 28 °C
Automatic: 19 - 28 °C
• The display flashes either 8 °C - 39 °C to inform you if the room
temperature is lower or higher than the displayed temperature.
3.4. Fan speed setting
3.4.1. For wired remote controller
Fri
Room
Cool Set temp.
Mode Temp. Fan
F1 F2 F3 F4
Press the [F4] button to go through the fan speeds in the following order.
3.4.2. For wireless remote controller
■ Press ④ button to select a desired fan speed.
• Each time you press the button, available options change with the
display 4 on the remote controller, as shown below.
Remote controller display
Fan speed
Low Medium
( )
(
3-stage
Notes:
●
I n the following cases, the actual fan speed generated by the unit
will differ from the speed shown the remote controller display.
1. W hile the display is in "STAND BY" or "DEFROST" states.
2. When the temperature of the heat exchanger is low in the
heating mode.
(e.g. immediately after heating operation starts)
3. I n HEAT mode, when room temperature is higher than the
temperature setting.
4. W hen the unit is in DRY mode.
Auto
High Auto
) ( )
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