FILE NO. SVM-10019

Item

Operation flow and applicable data, etc.

Description

3.Outdoor fan The blowing air volume at the outdoor unit side is controlled. 1) The operation command sent

motor control Receiving the operation command from the controller of

from the remote controller is

 

indoor unit, the controller of outdoor unit controls fan speed.

processed by the indoor unit

 

* For the fan motor, a DC motor with non-stage variable

controller and transferred to the

 

controller of the outdoor unit.

 

speed system is used. However, it is limited to 8 stages for

 

2) When strong wind blows at

 

reasons of controlling.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

outdoor side, the operation of air

 

 

 

 

 

 

 

 

 

 

conditioner continues with the

 

 

 

 

 

 

 

 

 

 

fan motor stopped.

 

Air conditioner ON

 

 

 

 

 

 

 

 

 

 

 

 

 

3) Whether the fan is locked or not

 

(Remote controller)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

is detected, and the operation of

 

 

 

 

 

 

 

 

 

 

air conditioner stops and an

 

Indoor unit controller

 

 

 

 

 

 

alarm is displayed if the fan is

 

 

 

 

 

 

 

 

 

 

locked.

 

 

 

 

 

 

 

 

 

 

4) According to each operation

 

1) Outdoor unit

 

 

 

 

 

 

mode, by the conditions of

 

operation command

 

 

 

 

 

 

outdoor temperature (To) and

 

(Outdoor fan control)

 

 

 

 

 

 

compressor revolution, the speed

 

 

 

 

 

 

 

 

 

 

of the outdoor fan shown in the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

table is selected.

 

2) Fan speed 400.

YES

Fan motor OFF continues

 

 

 

 

 

 

when the motor OFF.

(Use wind for heat

 

 

 

 

 

 

 

 

 

(by strong wind)

 

exchanging)

 

 

 

 

 

 

NO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fan motor ON

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3) Fan lock

 

Air conditioner

 

Alarm

 

 

 

 

 

OFF

 

display

 

 

 

 

NO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4) Motor operates as shown in the table below.

In cooling operation

Compressor speed (rps)

~ 13.8

~ 31.7

32.3 ~ MAX

MIN

MAX

MIN

MAX

MIN

MAX

 

To 100°F (38°C)

f 2

f 3

f C

f D

f E

f F

 

To 82°F (28°C)

f 2

f 3

f A

f C

f D

f F

To

To 59°F (15°C)

f 2

f 3

f 7

f A

f 9

f C

 

To 42°F (5.5°C)

f 1

f 3

f 2

f 5

f 4

f 7

 

To 32°F (0°C)

f 1

f 1

f 1

f 2

f 2

f 4

 

To < 32°F (0°C)

f 0

f 0

f 0

f 1

f 1

f 2

During

To 100°F (38°C)

f 2

f 3

f B

f C

f C

f D

ECO mode

To 100°F (38°C)

f 2

f 3

f 2

f 3

f B

f C

When To is abnormal

f D

f F

f D

f F

f D

f F

Outdoor fan speed (rpm)

In Heating operation

Compressor speed (rps)

~16.8

~47.9

48.5 ~ MAX

 

To 50°F (10°C)

f 3

f 8

f 9

To

To 42°F (15°C)

f 3

f 9

f A

To 22°F (-5°C)

f 8

f A

f D

 

 

To < 22°F (-5°C)

f B

f C

f D

 

To 50°F (10°C)

f 3

f 3

f 6

During

To 42°F (15°C)

f 3

f 3

f 8

ECO mode

To 22°F (-5°C)

f 5

f 9

f 9

 

To < 22°F (-5°C)

f 7

f A

f B

When To is abnormal

f A

f B

f D

 

Tap

RAS-09LAV-UL

RAS-12LAV-UL

 

f 0

0

0

 

f 1

200

200

 

f 2

300

300

 

f 3

370

370

 

f 4

440

440

 

f 5

440

440

 

f 6

500

500

 

f 7

550

550

 

f 8

600

600

Tap

RAS-09LAV-UL

RAS-12LAV-UL

f 9

600

650

f A

600

700

f B

650

700

f C

700

800

f D

700

800

f E

700

800

f F

700

900

 

 

 

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