Fuji Electric RS-18FA, RS-18UA, RS-18FB, RS-18UB, RS-24FB Service Manual

SPLIT TYPE

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ROOM AIR CONDITIONER

WALL MOUNTED type

Indoor unit

RS-18FA RS-18FB RS-18UA RS-18UB RS-24FB RS-24UB RS-30FB RS-30UB

Outdoor unit

RO-18FA RO-18FB RO-18UA RO-18UB RO-24FB RO-24UB RO-30FB RO-30UB

( made in Thailand )

RS-18FC RS-18UC RS-24FC RS-24UC

RO-18FD RO-18UD RO-24FC RO-24UC

( made in China )

CONTENTS

SPECIFICATIONS

OUTLINE AND DIMENSIONS

REFRIGERANT SYSTEM DIAGRAM

CIRCUIT DIAGRAM

ERROR DISPLAY

PCB CIRCUIT DIAGRAM

DISASSEMBLY ILLUSTRATION (Indoor Unit)

DISASSEMBLY ILLUSTRATION (Outdoor Unit)

PARTS LIST (Indoor Unit) PARTS LIST (Outdoor Unit)

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1

3

5

8

13

15

17

21

32 36

SPECIFICATIONS

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TYPE

INDOOR UNIT

OUTDOOR UNIT

COOLING CAPACITY (kW) 5.40

RS-18FA

RO-18FA

ELECTRICAL DATA

POWER SOURCE (V)

FREQUENCY (Hz)

RUNNING CURRENT (A)

INPUT WATTS (kW)

E.E.R. (kW/kW)

MOISTURE REMOVAL ( /hr)

AIR CIRCULATION-Hi (m /hr) 950

7.3

1.66

3.25

COMPRESSOR

TYPE

CODE 5KS205DAB

REFRIGERANT R410A (g) 1,450

FAN MOTOR

POWER SOURCE (V)

TYPE

INDOOR UNIT

OUTDOOR UNIT HI- SPEED (r.p.m.)

HI-SPEED (r.p.m.) 1,190

MED-SPEED (r.p.m.) 980

LO-SPEED (r.p.m.)

TYPE

LO-SPEED (r.p.m.)

Cool

RS-18FB RS-18FC

RO-18FB RO-18FD

8.5

1.90

2.84

2.0

795

Hermetic type, Deposit electrode condenser, 2 poles.

Single phase, Induction motor, Rotary

5KS225DAC

900

230

MFA-30HTT

1,040

890

760

MFB-24JTT

780

-----

RS-24FB RS-24FC

RO-24FB RO-24FC

6.80

230

50

10.6

2.40

2.83

2.5

950

5JS290DAA

1,550

1,190

1,020

880

RS-30FB

RO-30FB

7.90

13.0

2.75

2.87

3.0

1,040

5JS315DAD

2,300

1,310

1,180

980

MFB-30NTAT

730

450

DIMENSIONS

INDOOR UNIT

OUTDOOR UNIT

H x W x D (mm)

WEIGHT

INDOOR UNIT

OUTDOOR UNIT

GROSS / NET (kg)

REFRIGERANT CHARGE (R410A)

Pipe Length

FULL CHARGE AMOUNT

ADDITIONAL REFRIGERANT

7.5 m ( 25 ft )

10 m ( 33 ft )

15 m ( 49 ft )

20 m ( 66 ft )

25 m ( 82 ft )

30 m ( 98 ft )

55 / 51

1,450 g ( 51.1 oz )

1,500 g ( 54.6 oz )

1,600 g ( 56.4 oz )

1,700 g ( 60.0 oz )

-

320 x 1,120 x 220

650 x 830 x 320

51 / 47

900 g ( 31.8 oz )

950 g ( 33.5 oz )

1,050 g ( 37.0 oz )

1,150 g ( 40.6 oz )

-

20 g / m

22 / 16

1,550 g ( 54.7 oz )

1,600 g ( 56.4 oz )

1,700 g ( 60.0 oz )

1,800 g ( 63.5 oz )

( 0.215 oz / ft )

62 / 58

-

900 x 900 x 350

85 / 73

2,300 g ( 81.1 oz )

2,350 g ( 82.9 oz )

2,450 g ( 86.4 oz )

2,550 g ( 89.9 oz )

2,650 g ( 93.5 oz )

2,750 g ( 97.0 oz )

12005.02.24

TYPE

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INDOOR UNIT

OUTDOOR UNIT

COOLING CAPACITY (kW) 5.40

HEATING CAPACITY (kW) 5.70

RS-18UA

RO-18UA

ELECTRICAL DATA

POWER SOURCE (V)

FREQUENCY (Hz)

RUNNING CURRENT (Cool) (A)

RUNNING CURRENT (Heat) (A)

INPUT WATTS (Cool) (kW)

INPUT WATTS (Heat) (kW)

E.E.R. (Cool) (kW/kW)

E.E.R. (Heat) (kW/kW)

MOISTURE REMOVAL ( /hr)

AIR CIRCULATION-Hi (m /hr) 950

7.3

7.0

1.66

1.58

3.25

3.61

COMPRESSOR

TYPE

CODE 5KS205DAB

REFRIGERANT R410A (g) 1,550

Cool and Heat

RS-18UB RS-18UC

RO-18UB RO-18UD

8.3

1.85

2.92

3.08

2.0

800

Hermetic type, Deposit electrode condenser, 2 poles.

Single phase, Induction motor, Rotary

5KS225DAC

1,550

RS-24UB RS-24UC

RO-24UB RO-24UC

6.80

7.40

230

50

10.6

10.5

2.40

2.83

3.08

2.50

970

5JS290DAA

1,700

RS-30UB

RO-30UB

7.90

8.40

13.0

2.75

2.87

3.05

3.0

1,040

5JS315DAD

2,300

FAN MOTOR

POWER SOURCE (V)

TYPE

INDOOR UNIT

OUTDOOR UNIT HI- SPEED (r.p.m.)

HI-SPEED (r.p.m.) 1,190

MED-SPEED (r.p.m.) 980

LO-SPEED (r.p.m.)

TYPE

LO-SPEED (r.p.m.)

DIMENSIONS

INDOOR UNIT

OUTDOOR UNIT

H x W x D (mm)

WEIGHT

INDOOR UNIT

OUTDOOR UNIT

GROSS / NET (kg)

REFRIGERANT CHARGE (R410A)

Pipe Length

7.5 m ( 25 ft )

760

650 x 830 x 320

56 / 52

1,550 g ( 54.7 oz )

1,040

890

MFB-24JTBT

780

400

320 x 1,120 x 220

230

MFA-30HTT

22 / 16

1,700 g ( 60.0 oz )

1,190

1,020

880

63 / 59

1,310

1,180

980

MFB-30NTAT

730

450

900 x 900 x 350

86 / 74

2,300 g ( 81.1 oz )

FULL CHARGE AMOUNT

ADDITIONAL REFRIGERANT

10 m ( 33 ft )

15 m ( 49 ft )

20 m ( 66 ft )

25 m ( 82 ft )

1,600 g ( 54.6 oz )

1,700 g ( 60.0 oz )

1,800 g ( 63.5 oz )

-

20 g / m

( 0.215 oz / ft )

1,800 g ( 63.5 oz )

2,000 g ( 70.6 oz )

2,200 g ( 77.6 oz )

-

40g / m

2,400 g ( 84.7 oz )

2,600 g ( 91.7 oz )

2,800 g ( 98.8 oz )

3,000 g ( 105.8 oz )

( 0.43 oz / ft )

22005.02.24

OUTLINE AND DIMENSIONS

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Unit : mm

INDOOR UNIT

1,120

321

626

711

626

711

224

2005.02.24

3

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REFRIGERANT SYSTEM DIAGRAM

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Models : RS-18FA / RO-18FA

RS-18FB / RO-18FB

RS-18FC / RO-18FD

INDOOR UNIT

Evaporator

Refrigerant pipe

6.35 mm (1/4")

Refrigerant pipe

15.88 mm (5/8")

Charging valve

OUTDOOR UNIT

Capillary tube

Strainer

Condenser

Compressor

Models : RS-24FB / RO-24FB

RS-24FC / RO-24FC

INDOOR UNIT

Refrigerant pipe

9.52 mm (3/8")

Evaporator

Refrigerant pipe

15.88 mm (5/8")

Charging valve

OUTDOOR UNIT

Capillary tube

Compressor

Strainer

Condenser

Cooling

: Flare coupling

2005.02.24 5

Models : RS-18UA / RO-18UA

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RS-18UB / RO-18UB RS-18UC / RO-18UD

INDOOR UNIT

Evaporator

Refrigerant pipe

6.35mm(1/4")

Refrigerant pipe

15.88mm(5/8")

Charging valve

OUTDOOR UNIT

Strainer

Compressor

4-Way valve

Capillary tube

Muffler

Strainer

Condenser

Distributor

Models : RS-24UB/ RO-24UB

RS-24UC / RO-Y24UC

INDOOR UNIT

Refrigerant pipe

9.52mm(3/8")

Evaporator

Refrigerant pipe

15.88mm(5/8")

Charging valve

OUTDOOR UNIT

Strainer

Compressor

Accumulator

4-Way valve

Capillary tube

Strainer

Distributor

Muffler

Condenser

Cooling

Heating

: Flare coupling

2005.02.24 6

Models : RS-30FB / RO-30FB

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INDOOR UNIT OUTDOOR UNIT

Evaporator

Refrigerant pipe

9.52mm(3/8")

Charging valve

Refrigerant pipe

15.88mm(5/8")

Cappillary tube

2-Way valve

3-Way valve

Strainer

Condenser

PRESSURE CHECK VALVE

CompressorAccumulator

Models : RS-30UB / RO-30UB

INDOOR UNIT OUTDOOR UNIT

Refrigerant pipe

9.52mm(3/8")

Strainer

3-Way valve

Evaporator

Accumulator

Charging valve

Cappillary tube

Compressor

Strainer

Condenser

Refrigerant pipe

15.88mm(5/8")

3-Way valve

4-Way valve

Cooling

Heating

2004.03.02 7

PRESSURE CHECK VALVE

Controller PCB

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CIRCUIT DIAGRAM

Display Board

Fan Motor

Capacitor

GREEN/ YELLOW

CN4

CN201

Transformer

BLUE

1

CN5

8 7 6 5 4 3 2 1

WHITE

221

8 7 6 5 4 3 2 1

PURPLE

22113

3

Fan

FM

BLACK

Motor

YELLOW

RED

334455667

21

GRAY

PURPLE

8 7 6 5 4 3 2 1

3 2 1

RED

2 1

GRAY

2

WHITE

7

8 7 6 5 4 3 2 1

CN9CN2 CN1

3 2

2

GRAY

1

CN11CN10CN7CN6

BLACK

2

BLACK

1

GRAY

5

GRAY

4

GRAY

3

GRAY

2

PINK

1

GRAY

10

GRAY

9

GRAY

8

GRAY

7

GRAY

6

GRAY

5

GRAY

4

GRAY

3

GRAY

2

PINK

1

FUSE T 3. 15A 250V

1

2 1

L

N

Thermistor (Pipe temp.)

Thermistor (Room temp.)

5

4

Step Motor (Right / Left)

M

3

2

1

5

4

Step Motor (Up / Down)

M

3

2

1

5

4

3

Step Motor (Diffuser)

M

2

1

3

2

CN3

1

INDOOR UNIT

Models :

RS-18FA / RO-18FA RS-18FB / RO-18FB RS-18FC / RO-18FD RS-24FB / RO-24FB RS-24FC / RO-24FC

GRAY

GREEN

WHITE

BLACK

GRAY

THERMAL FUSE 102

GRAY

123

(N)

Terminal

Internal Overload Protector

Compressor

Main Relay

OUTDOOR UNIT

White

Compressor Capacitor

White

Fuse 5A

Black

Fan Motor

Thermal Protector

Black

Fan Motor Capacitor

to Power Supply

2005.02.24 8

Black

White

(PIPE TEMP.)

GRAY

WHITE

BROWN

GREEN

GRAY

FM

(ROOM TEMP.)

(RIGHT/ LEFT)

(UP/DOWN)

BLACK

WHITE

BLACK

BLUE

RED

BLUE

RED

BLACK

GRAY

YELLOW

PINK

GRAY

PURPLE

GRAY

(DIFFUSER)

GRAY

RED

PINK

M

GREEN/

YELLOW

L

N

FAN MOTOR CAPACITOR

THERMISTOR

FAN

MOTOR

TERMINAL

THERMISTOR

STEP

MOTOR

STEP

MOTOR

STEP

MOTOR

TRANSFORMER

CONTROL BOARD

DISPLAY BOARD

CN4

CN5

CN11CN10CN7CN6

CN3

CN9CN2 CN1

CN201

THERMAL

FUSE 102

2

1

21

3

4

5

6

7

2

1

3

22113

3

221

1

776

6

221133445

5

7 7

8 8

6 6

221133445

5

22113

3

221133445

5

221

1

889910

10

776

6

221133445

5

221

1

221133445

5

221133445

5

221133445

5

(N)

123

FUSE T 3. 15A 250V

456

OUTDOOR UNIT

INDOOR UNIT

Models : RS-18UA / RO-18UA

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2005.02.24 9

Controller PCB

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Fan Motor

GREEN/ YELLOW

CN4

DISPLAY BOARD

CN201

Transformer

WHITE

Capacitor

BLUE

221

1

CN5

8 7 6 5 4 3 2 1

22113

3

YELLOW

RED

BLACK

FM

334455667

21

GRAY

8

GRAY

7

GRAY

6

GRAY

5

GRAY

4

GRAY

3

GRAY

2

PURPLE

1

PURPLE

RED

WHITE

Fan Motor

WHITE

7

8 7 6 5 4 3 2 1

3 2 1

2 1

GRAY

2

GRAY

CN11CN10CN7CN6

1

BLACK

2

BLACK

1

Thermistor (Pipe temp.)

Thermistor (Room temp.)

Models : RS-18UB / RO-18UB

RS-18UC / RO-18UD RS-24UB / RO-24UB RS-24UC / RO-24UC

GRAY

5

GRAY

4

GRAY

3

GRAY

2

PINK

1

GRAY

10

8 7 6 5 4 3 2 1

CN9CN2 CN1

3 2

10

GRAY

9

GRAY

8

GRAY

7

GRAY

6

GRAY

5

GRAY

4

GRAY

3

GRAY

2

PINK

1

FUSE T 3. 15A 250V

5

4

Step Motor (Right / Left)

M

3

2

1

5

4

M

3 2 1

5 4 3 2 1

Step Motor (Up / Down)

3 2 1

5 4

Step Motor (Diffuser)

3

M

2 1

1

3

2 1

L

N

3

2

CN3

1

INDOOR UNIT

GRAY

GREEN

WHITE

BLACK

GRAY

123

BLUE

456

THERMAL FUSE 102

BROWN

RED

GRAY

(N)

Terminal

OUTDOOR UNIT

Internal Overload Protector

Compressor

Black

Main Relay

Black

Red

Black

White

Compressor Capacitor

Brown

Fuse 5A

Brown

White

Black

White

Black

Thermal Protector

Red

White

Fan Motor Capacitor

Fan Motor

Black

Blue

4-way Valve Coil

Black

to Power Supply

2005.02.24

10

Model : RS-30FB / RO-30FB

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TRANSFORMER

RED

GREEN

221

BLACK

123

WHITE

(N)

GRAY

THERMAL

TERMINAL

FUSE 102

1

L

N

CN3

22113

FUSE T 3. 15A 250V

22113

3

GRAY GRAY

DISPLAY BOARD

CN201

221133445

PURPLE

GRAY

221133445

3

CN9CN2 CN1

221133445

GRAY

PINK

221133445

M

(DIFFUSER)

STEP

MOTOR

7

8

6

7

8

6

5

GRAY

5

GRAY

776

8

6

8

CONTROL BOARD

889910

776

6

5

GRAY

10

GRAY

221133445

5

M

(UP/DOWN)

STEP

MOTOR

CN4

1

CN5

21

BLUE

2

RED

3

4

5

6

WHITE

7

221133445

GRAY

PINK

GRAY

221133445

M

(RIGHT/ LEFT)

STEP

MOTOR

GREEN/

YELLOW

FAN MOTOR CAPACITOR

WHITE

YELLOW

FM

FAN

MOTOR

BLACK

5

GRAY

1

2

3

WHITE

CN11CN10CN7CN6

221

1

GRAY

BLACK

GRAY

BLACK

5

(PIPE TEMP.)

(ROOM TEMP.)

THERMISTOR

INDOOR UNIT

OUTDOOR UNIT

TO POWER SOURCE

2005.02.24 11