Operation - Mitsubishi Electric PLA-A EA Series Operation Manual

3. Operation

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About the operation method, refer to the operation manual that comes with each remote controller.
3.1. Turning ON/OFF
[ON]
ON
OFF
Note:
Even if you press the ON/OFF button immediately after shutting down the operation is progress, the air conditioner will not start for about 3 minutes.
This is to prevent the internal components from being damaged.
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Operation status memory
Operation mode
Preset temperature
Fan speed
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Settable preset temperature range
Operation mode
Cool/Drying
Heat
Auto
Fan/Ventilation
3.2. Mode Selection
Fri
83
Room
Cool Set temp. Auto
83
Mode Temp. Fan
F1 F2 F3 F4
ON
RETURN SELECT
MENU
OFF
HOLD
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.
Automatic operation
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According to a set temperature, cooling operation starts if the room tem-
perature is too hot and heating operation starts if the room temperature
is too cold.
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During automatic operation, if the room temperature changes and re-
mains 2.0 °C, 4 °F or more above the set temperature for 15 minutes,
the air conditioner switches to cool mode. In the same way, if the room
temperature remains 2.0 °C, 4 °F or more below the set temperature for
15 minutes, the air conditioner switches to heat mode.
en
Cool mode
15 minutes (switches from
cooling to heating)
7
Press the [ON/OFF] button.
The ON/OFF lamp will light up in green,
and the operation will start.
When "LED lighting" is set to "No", the
ON/OFF lamp will not light up.
* Refer to the installation manual of
wired remote controller.
Operation mode before the power was turned off
Preset temperature before the power was turned off
Fan speed before the power was turned off
67 - 87 ºF/19 - 30 ºC
63 - 83 ºF/17 - 28 ºC
67 - 83 ºF/19 - 28 ºC
Not settable
Press the [F1] button to go through the oper-
ation modes in the order of "Cool", "Drying",
"Fan", "Auto", and "Heat". Select the desired
operation mode.
Cool Drying
Auto Heat
• Operation modes that are not available to
the connected outdoor unit models will not
appear on the display.
15 minutes (switches from
heating to cooling)
Set temperature +2.0 °C, +4 °F
Set temperature
Set temperature -2.0 °C, -4 °F
[OFF]
ON
OFF
Remote controller setting
Preset temperature range
Information for multi system air conditioner (Outdoor
unit: MXZ series)
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Multi system air conditioner (Outdoor unit: MXZ series) can
connect two or more indoor units with one outdoor unit. According
to the capacity, 2 or more units can operate simultaneously.
• When you try to operate 2 or more indoor units with 1 outdoor unit
simultaneously, one for the cooling and the other for heating, the
Fan
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 blinking.
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.
3.3. Temperature setting
<Cool, Drying, Heat, and Auto>
83
Room
Cool Set temp.
83
Mode Temp.
F1 F2 F3
RETURN SELECT
MENU
HOLD
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.
Press the [ON/OFF] button again.
The ON/OFF lamp will come off, and
the operation will stop.
Fri
Operation mode
Room temperature (Refer to the Installation Manual.)
Auto
Fan
F4
ON
OFF