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4.6 Outline of heating operation (Heat pump type only)

(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 thermistor) and the thermostat 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)

Hot keep

This function controls the indoor unit fan speed as shown below in accordance with the temperature sensed by the indoor heat

exchanger thermistor.

(a)

When the compressor and outdoor unit fan are operating

Indoor fan motor

Flaps

Display

52C

Outdoor fan motor

ON

ON or OFF

Lights up

ON

OFF

ON

ON or OFF

Lights up

ON

ON

OFF

 Stop position control

Lights up or flashes

OFF after stop mode

OFF

4-way valve

Depending on the stop mode

ON

Depending on the stop mode

When the compressor

command is OFF

 When the compressor

command is ON

When the compressor goes

OFF due to an abnormal stop.

Functional

components

Item

Air scroll

Swing flap

Swing stop

Auto fan control 

Speed 6

Speed 6

Speed 6

Speed 4

Speed 4

Speed 4

AUTO

HIGH

MED

Speed 2

Speed 2

Speed 2

LOW

Flow control

Fan speed switching

Speed 6

Speed 4

Speed 2

Thermostat setting point

-5

-4

-3

-2

-1

0

OFF

ON

Set temp.

Compressor
outdoor fan

+1

Room temp.

Speed 6

Speed 4

Speed 2

Speed 1

OFF

34
40
43

30
34
37

25
30
30

20
25
25

15
15
20

Model : 20
Model : 28
Model : 40

Auto fan control, 
or the set fan speed

Indoor heat exchanger temp. (˚C)

Опубликовано TopClimat