Outline Of Cooling Operation - Mitsubishi Heavy Industries SRK20HD Technical Manual

Wall mounted type room air-conditioner
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4.7 Outline of cooling operation

(1) Operation of major functional components
Functional
components
Indoor fan motor
Flaps
Display
52C
Outdoor fan motor
4-way valve
(2) Fan speed switching
Fan speed switching
Flow control
Air scroll
Swing flap
Swing stop
(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.
(3) Thermostat operation
The compressor and outdoor fan and turned on and off as shown below according to the temperature setting.
(4) High Power operation ( "HI POWER" button on the remote controller : ON)
The following operation is performed for 15 minutes without relation to the set temperature or fan speed setting.
Indoor unit fan
Outdoor unit fan
Compressor
(5) ECONO operation ( "ECONO" button on the remote controller : ON)
The set temperature changes as shown at right, and the
indoor unit fan speed is set on speed 2.
Item
When the compressor
command is OFF
ON
ON or OFF
Lights up
ON
OFF
Depending on the stop mode
AUTO
Auto fan control
Speed 3
Speed 2
+1
Thermostat setting point
Compressor
OFF
outdoor fan
Room temp.
Speed 6 fixed
Notes (1) Room temperature is not adjusted during the HI POWER operation.
ON
ON
-
When the compressor
command is ON
ON
ON or OFF
Lights up
ON
ON
OFF
HIGH
MED
Speed 5
Speed 3
Speed 5
Speed 3
Speed 5
Speed 3
Speed 5
Speed 4
+2
+3
+4
ON
-1
Set temp.
(2) Protective functions will actuate with priority even during the HI POWER operation.
Running time
Running start ~ 1 hour
1~2 hours
2 hours ~
13
-
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When the compressor goes
OFF due to an abnormal stop.
OFF
Stop position control
Lights up or flashes
OFF after stop mode
OFF
Depending on the stop mode
LOW
Speed 2
Speed 2
Speed 2
Set temperature compensation
Set temperature +0.5
Set temperature +1.0
Set temperature +1.5

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