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18
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4.9 Outline of cooling operation
(1)
Operation of major functional components
(2)
Fan speed switching
(a)
Auto fan control
The indoor fan is automatically controlled in accordance with the difference between the room temperature (detected by the
room temperature sensor) and the termostat setting as shown below.
Indoor fan motor
Flap and louver
Display
Outdoor fan motor
ON
ON or OFF
Lights up
ON
ON or OFF
Lights up
ON
OFF
OFF
Stop position control
Lights up or flashes
When the compressor
command is OFF
When the compressor
command is ON
When the compressor goes
OFF due to an anomalous stop.
Functional
components
Item
Depending on the stop mode
Depending on the stop mode
4-way valve
Electric expansion valve
Depending on the EEV control
Air scroll
Swing flap or louver
Swing stop
Auto fan control
Speed 8
Speed 8
Speed 8
Speed 6
Speed 6
Speed 6
AUTO
HIGH
MED
Speed 4
Speed 4
Speed 4
LOW
Flow control
Fan speed switching
Speed 6
Speed 4
Thermostat setting point
Speed 8
+1
+2
+3
+4
(8)
Forced defrost
(a)
Forced defrost operation can be performed only once time within 20 second, after the power source is turned on, in accor-
dance with the following operation.
1) Remote control operation
(b)
If remote control operation is performed, for 1 minute after 3-minute timer operation, the operation is canceled if one of the
following conditions is satisfied.
1
Outdoor heat exchanger temperature sensor: 14ºC or higher
2
10 minutes has passed (including the 1 minute of forced operation).
(9)
ECONOMY operation ( “ECONO” button on the remote control : ON)
The set temperature changes as shown at right and the
indoor unit fan runs at speed 5.
Operation
Operation mode
Set temperature
Fan speed select
Air flow setting
On timer
Current time
On timer time
Run
Heating
19˚C
Low
Up/down swing
ON
On after 180 min.condition
Compressor
4-way valve
Indoor unit fan
Flap and louver
Outdoor unit fan
Display
ON
OFF
OFF
Fully closed
OFF
Same as defrost
2) Functional components operation
Running time
Running start ~ 1 hour
1~2 hours
2 hours ~
Set temperature compensation
Set temperature -1.0
Set temperature -2.0
Set temperature -2.5
