Mitsubishi Electric PKA-A·HA Operation Manual page 6

5. Operation
5.2. Mode select
Press the operation mode (
tion mode .
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(COOL) Cooling mode
(DRY) Drying mode
(FAN) Fan mode
(HEAT) Heating mode
(AUTO) Automatic (cooling/heating) mode
Ventillation mode
Only indicated on the following condition
Wired remote controller used
LOSSNAY connected
Automatic operation
According to a set temperature, cooling operation starts if the room
temperature is too hot and heating operation starts if the room tem-
perature is too cold.
During automatic operation, if the room temperature changes and
remains 2 °C, 4 °F 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, 4 °F or more below the set tempera-
ture for 15 minutes, the air conditioner switches to heating mode.
Cooling mode
15 minutes (switches
from heating to cooling)
15 minutes (switches
from cooling to heating )
Because the room temperature is automatically adjusted in order to
maintain a fi xed effective temperature, cooling operation is performed
a few degrees warmer and heating operation is performed a few de-
grees cooler than the set room temperature once the temperature is
reached (automatic energy-saving operation).
5.3. Temperature setting
To decrease the room temperature:
Press button 3 to set the desired temperature.
The selected temperature is displayed
To increase the room temperature:
Press button 3 to set the desired temperature.
The selected temperature is displayed
• Available temperature ranges are as follows:
Cooling/Drying: 19 - 30 °C, 67 - 87 °F
Heating: 17 - 28 °C, 63 - 83 °F
Automatic: 19 - 28 °C, 67 - 83 °F
• The display 4 fl ashes either 8 °C - 39 °C, 46 °F - 102 °F to inform you
if the room temperature is lower or higher than the displayed tempera-
ture. (This display does not appear on the wireless remote controller.)
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) button 2 and select the opera-
Set temperature +2°C, +4°F
Set temperature
Set temperature -2°C, -4°F
.
3
.
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5.4. Fan speed setting
Press the Fan Speed button 5 as many times as necessary while the
system is running.
• Each press changes the force. The currently selected speed is
shown at 5.
• The change sequence, and the available settings, are as follows.
FAN SPEED
4-speed Speed 1 Speed 2
+
Auto
Speed 1
3-speed
+
Auto
Note:
The number of available fan speeds depends on the type of unit
connected. Note also that some units do not provide an "Auto"
setting.
In the following cases, the actual fan speed generated by the unit
will differ from the speed shown the remote controller display.
1. While the display is showing "STAND BY" or "DEFROST".
2. When the temperature of the heat exchanger is low in the heat-
ing mode. (e.g. immediately after heating operation starts)
3. In HEAT mode, when room temperature is higher than the tem-
perature setting.
4. When the unit is in DRY mode.
5.5. Airfl ow direction setting
<To Change the Airfl ow's Up/Down Direction>
With the unit running, press the Airfl ow Up/Down button
• Each press changes the direction. The current direction is shown at
• The change sequence, and the available settings, are as follows.
Remote controller
Wired type
Swing
Auto
(PCA-KA)
(PKA-HA)
Swing
Wireless type
*Note that during swing operation, the directional indication on the
screen dose not change in sync with the directional vanes on the unit.
Note:
Available directions depend on the type of unit connected. Note
also that some units do not provide an "Auto" setting.
In the following cases, the actual air direction will differ from the
direction indicated on the remote controller display.
1. While the display is showing "STAND BY" or "DEFROST".
2. Immediately after starting heater mode (while the system is
waiting for the mode change to take effect).
3. In heat mode, when room temperature is higher than the tempera-
ture setting.
Display
Speed 3 Speed 4 Auto
Speed 2 Speed 3 Auto
as necessary.
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Display
1 2 3 4 5
1 2 3 4
.
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