AH-X13 (serv.man7). Functions - Sharp Air Conditioner Service Manual (repair manual). Page 2

20

If the temperature of the indoor heat exchanger stays
below approximately 0

°

C for four minutes during

cooling or dry, this control stops the compressor. Over
2˚C the compressor will run again.

When heating begins, this control stops the indoor fan
until the temperature of the indoor heat exchanger
reaches 26

°

C. It also stops the fan if the temperature

goes below 23

°

C during operation.

The indoor fan has 12 speeds, and changing is done
in four stages, "Auto", "High", "Med", and "Low". The
relations between the indoor fan speed, air quantity
setting, operating frequency, and indoor heat
exchanger are shown in the following charts.

If the room temperature is in the j or k zone during
heating, the compressor is turned on and off to
prevent overheating.
The fan goes off 30 seconds after the compressor
goes off.

The operating mode and temperature setting are
determined by the room temperature and the external
air temperature.

1. From cooling to heating

Cooling mode will changeover to heating mode when
condition of indoor temperature 1.7˚C lower than the
set temperature conditions for 5 minutes.

2. From heating to cooling

Heating mode will change over to cooling mode when
condition of indoor temperature 1.3˚C higher than the
set temperature conditions for 25 minutes under Hot
keep condition.

3. When the set temperature is adjusted within the

range of 

±

2˚C by the remote control's key. ( 

),

the changeover judgement room temp. will also be
shifted within the range of 

±

2˚C.

The ON-timer is set by pressing the ON-timer button.
In order to attain the set temperature at the set time,
the operation starting time is corrected by fuzzy
computing one hour before the set time.

OFF

1

2

3

4

5

6

7

8

9

10

11

1

2

3

4

5

6

7

8

9

OFF

Fan speed

Frequency cord

Fan speed : High / Med / Low 

High

Med

Low

OFF

1

2

3

4

5

6

7

8

9

10

11

1

2

3

4

5

6

7

8

9

OFF

Fan speed

Frequency cord

Fan speed : Automatic

COOLING

OFF

1

2

3

4

5

6

7

8

9

10

11

1

2

3

4

5

6

7

8

9

OFF

Fan speed

Frequency cord

Fan speed : High / Med / Low 

12

A

B

C

A

B

C

Low 

D - H

Med 

D - H

High 
D - H

OFF

1

2

3

4

5

6

7

8

9

10

11

1

2

3

4

5

6

7

8

9

OFF

Fan speed

Frequency cord

Fan speed : Automatic

12

A

B

C

A

B

C

D

E, F, G, H

HEATING

12

11

10

9

8

7

6

5

4

3

2

1

0

1

2

3

4

5

f 

e 

d
(Full power only)

j

i

h1

h2, g

Dry

Operating frequency code

Fan speed

Zone

Compressor
intermittent time

Fan

After "3 min. on - 3 min.off" is 
repeated 4 times, the compressor 
goes off, and only the fan 
continues to repeat “3 min. on - 8 
min.off”.

J

K

3 min. on - 3 min. off

3 min. on - 8 min. off

Same as Compressor

Heating

(24˚C)

Heating

(23˚C)

Cooling

(24˚C)

Cooling

(24˚C)

(Room temperature 

- 2

°

C)

Cooling

(25˚C)

Cooling

(26˚C)

(Dry)

Room 
temperature
(˚C)

When the cooling operation only can use winter kit

21

29

0

10

18

28

34

Outdoor
temperature (

°

C)

Cooling

(25˚C)

Cooling

(26˚C)

Heating

(22˚C)