Fujitsu ACUH09LUAS1 Service-Handbuch

AIR CONDITIONER

Cassette type

DESIGN & TECHNICAL MANUAL

INDOOR

ACUH09LUAS1

ACUH12LUAS1

ACUH18LUAS1

OUTDOOR

AOUH09LUAS1 AOUH12LUAS1

AOUH18LUAS1

DR_AU038EF_02

2021.06.30

Notices:

• Product specifications and design are subject to change without notice for future improvement.

• For further details, please check with our authorized dealer.

Trademarks

FGLair™ is trademark of Fujitsu General Limited in the United States, other countries or both.

Google Play™ is trademark of Google Inc.

App Store® is a service mark of Apple Inc., registered in the U.S. and other countries.

CONTENTS

Part 1. INDOOR UNIT...........................................................................1

1. Specifications................................................................................................2

2. Dimensions....................................................................................................4

2-1. Models: ACUH09LUAS1, ACUH12LUAS1, and ACUH18LUAS1 ....................................4

2-2. Installation space requirement .........................................................................................5

3. Wiring diagram ..............................................................................................6

3-1. Models: ACUH09LUAS1, ACUH12LUAS1, and ACUH18LUAS1 ....................................6

4. Capacity table................................................................................................7

4-1. Cooling capacity...............................................................................................................7

4-2. Heating capacity ..............................................................................................................9

5. Fan performance .........................................................................................11

5-1. Air velocity distributions..................................................................................................11

5-2. Airflow ............................................................................................................................17

6. Operation noise (sound pressure).............................................................20

6-1. Noise level curve............................................................................................................20

6-2. Sound level check point .................................................................................................22

7. Safety devices .............................................................................................23

8. External input and output...........................................................................24

8-1. External input.................................................................................................................24

8-2. External output...............................................................................................................26

8-3. Combination of external input and output.......................................................................28

8-4. Details of function ..........................................................................................................31

9. Function settings .......................................................................................56

9-1. Function settings on indoor unit .....................................................................................56

9-2. Function settings by using remote controller..................................................................57

10. Accessories.................................................................................................66

10-1.Models: ACUH09LUAS1, ACUH12LUAS1, and ACUH18LUAS1 .................................66

11. Optional parts .............................................................................................67

11-1.Controllers ....................................................................................................................67

11-2.Cassette grille ...............................................................................................................67

11-3.Others ...........................................................................................................................68

Part 2. OUTDOOR UNIT.....................................................................71

1. Specifications..............................................................................................72

2. Dimensions..................................................................................................73

2-1. Models: AOUH09LUAS1................................................................................................73

2-2. Models: AOUH12LUAS1 and AOUH18LUAS1 ..............................................................74

3. Installation space ........................................................................................75

3-1. Models: AOUH09LUAS1, AOUH12LUAS1, and AOUH18LUAS1 .................................75

4. Refrigerant circuit .......................................................................................78

4-1. Models: AOUH09LUAS1................................................................................................78

4-2. Models: AOUH12LUAS1 and AOUH18LUAS1 ..............................................................79

5. Wiring diagrams ..........................................................................................80

5-1. Model: AOUH09LUAS1 .................................................................................................80

5-2. Models: AOUH12LUAS1 and AOUH18LUAS1 ..............................................................81

6. Capacity compensation rate for pipe length and height difference........82

6-1. Model: AOUH09LUAS1 .................................................................................................82

6-2. Model: AOUH12LUAS1 .................................................................................................83

6-3. Model: AOUH18LUAS1 .................................................................................................84

7. Additional charge calculation ....................................................................85

7-1. Model: AOUH09LUAS1 .................................................................................................85

7-2. Model: AOUH12LUAS1 .................................................................................................85

7-3. Model: AOUH18LUAS1 .................................................................................................85

8. Airflow..........................................................................................................86

8-1. Model: AOUH09LUAS1 .................................................................................................86

8-2. Model: AOUH12LUAS1 .................................................................................................86

8-3. Model: AOUH18LUAS1 .................................................................................................87

9. Operation noise (sound pressure).............................................................88

9-1. Noise level curve............................................................................................................88

9-2. Sound level check point .................................................................................................89

10. Electrical characteristics............................................................................90

11. Safety devices .............................................................................................91

12. Accessories.................................................................................................92

12-1.Models: AOUH09LUAS1, AOUH12LUAS1, and AOUH18LUAS1 ................................92

CONTENTS (continued)

Part 1. INDOOR UNIT

CASSETTE TYPE:

ACUH09LUAS1

ACUH12LUAS1

ACUH18LUAS1

1. Specifications

Type

Cassette

Inverter heat pump

Model name ACUH09LUAS1 ACUH12LUAS1 ACUH18LUAS1

Power supply 208/230 V ~ 60 Hz

Available voltage range 187—253 V

Capacity

Cooling Cooling

Rated kW 2.64 3.52 5.02

Btu/h 9,000 12,000 17,100

Min.—Max. kW 0.90—3.20 0.90—4.00 0.90—5.90

Btu/h 3,100—11,000 3,100—13,600 3,100—20,100

Heating

47 °FDB

(Outdoor temp.)

Rated kW 3.52 4.69 6.33

Btu/h 12,000 16,000 21,600

Min.—Max. kW 0.90—4.70 0.90—5.70 0.90—7.00

Btu/h 3,100—16,000 3,100—19,400 3,100—23,900

17 °FDB

(Outdoor temp.)

Rated kW 2.17 3.08 4.22

Btu/h 7,400 10,500 14,400

Max. kW 3.08 4.98 5.75

Btu/h 10,500 17,000 19,600

Input power

Cooling Cooling Rated

0.66 0.94 1.37

Max. 1.05 2.06 2.35

Heating

47 °FDB

(Outdoor temp.)

Rated 0.93 1.44 1.81

Max. 1.72 1.79 2.57

17 °FDB

(Outdoor temp.)

Rated 0.78 1.07 1.49

Max. 1.42 2.01 2.56

Current Cooling Rated A 3.3 4.2 6.1

Heating 4.6 6.4 8.1

EER Cooling kW/kW 4.00 3.74 3.66

Btu/hW 13.6 12.8 12.5

COP Heating kW/kW 3.78 3.25 3.50

Btu/hW 12.9 11.1 11.9

SEER Cooling Btu/hW 22.5 22.1 20.8

HSPF Heating Btu/hW 12.5 12.2 11.6

Power factor Cooling %87.0 97.3 97.6

Heating 86.0 97.8 97.2

Moisture removal pints/h (L/h) 1.3 (0.6) 2.5 (1.2) 4.6 (2.2)

Maximum operating current *1Cooling A6.8 9.8 11.8

Heating 9.3 11.3 14.8

Fan

Airflow rate

Cooling

HIGH

CFM (m3/h)

318 (540) 359 (610) 435 (740)

MED 288 (490) 312 (530) 341 (580)

LOW 259 (440) 276 (470) 288(490)

QUIET 230 (390) 241 (410)

Heating

HIGH 318 (540) 359 (610) 435 (740)

MED 288 (490) 312 (530) 341 (580)

LOW 259 (440) 276 (470) 288 (490)

QUIET 230 (390) 241 (410)

Type × Q'ty Turbo × 1

Motor output W 54

Sound pressure level *2

Cooling

HIGH

dB (A)

33 37 42

MED 32 33 36

LOW 29 31 32

QUIET 28

Heating

HIGH 34 37 44

MED 32 33 40

LOW 29 31 36

QUIET 27 28 30

Heat exchanger type

Dimensions (H × W × D) in (mm)

Main 1: 8-4/16 × 51-9/16 × 1/2

(210 × 1,310 × 13.3)

Main 2: 8-4/16 × 49-3/16 × 1/2

(210 × 1,250 × 13.3)

Fin pitch FPI Main 1: 1.2

Main 2: 1.2

Rows × Stages Main 1: 1 × 10

Main 2: 1 × 10

Pipe type Copper tube

Fin type Aluminum

Dimensions

(H × W × D)

Net in (mm) 9-5/8 × 22-7/16 × 22-7/16 (245 × 570 × 570)

Gross 10-7/16 × 28-3/4 × 24-5/8 (265 × 730 × 625)

Weight Net lb (kg) 33 (15)

Gross 40 (18) 42 (19)

Connection pipe Size Liquid in (mm) Ø1/4 (Ø6.35)

Gas Ø3/8 (Ø9.52) Ø1/2 (Ø12.70)

Method Flare

Operation range Cooling °F (°C) 64 to 90 (18 to 32)

%RH 80 or less

Heating °F (°C) 60 to 86 (16 to 30)

Drain hose

Material HARD PVC

Size in (mm) Ø3/4 (Ø20.7) [I.D.]

Ø1-1/16 (Ø26.6) [O.D.]

Cassette grille

(Grid type: Option)

Model name UTG-CCGFGA

Material PS

Color White

Approximate color of Munsell 9PB 9.1/0.2

Dimensions

(H × W × D)

Net in (mm) 1-15/16 × 24-7/16 × 24-7/16 (49 × 620 × 620)

Gross 4-3/4 × 30-1/8 × 29-3/4 (120 × 765 × 755)

Weight Net lb (kg) 5.1 (2.3)

Gross 10 (4.5)

- 2 - 1. Specifications

CASSETTE TYPE

ADUH09-18LUAS1

CASSETTE TYPE

ADUH09-18LUAS1

Type

Cassette

Inverter heat pump

Model name ACUH09LUAS1 ACUH12LUAS1 ACUH18LUAS1

NOTES:

• Specifications are based on the following conditions:

– Cooling: Indoor temperature of 80 °FDB (26.67 °CDB) /67 °FWB (19.44 °CWB), and outdoor temperature of 95 °FDB (35 °CDB) / 75 °FWB (23.9 °CWB).

– Heating: Indoor temperature of 70 °FDB (21.11 °CDB) /59 °FWB (15 °CWB), and outdoor temperature of 47 °FDB (8.33 °CDB) /43 °FWB (6.11 °CWB).

– Pipe length: 24 ft 6 in (7.5 m), Height difference: 0 ft (0 m). (Between outdoor unit and indoor unit.)

• Protective function might work when using it outside the operation range.

• *1: Maximum operating current is the total current of the indoor unit and the outdoor unit.

• *2: Sound pressure level:

– Measured values in manufacturer’s anechoic chamber.

– Because of the surrounding sound environment, the sound levels measured in actual installation conditions might be higher than the specified values here.

• *3: Available on Google Play™ store or on App Store®. Optional WLAN adapter is also required. For details, refer to the setting manual.

- 3 - 1. Specifications

CASSETTE TYPE

ADUH09-18LUAS1

CASSETTE TYPE

ADUH09-18LUAS1

2. Dimensions

2-1. Models: ACUH09LUAS1, ACUH12LUAS1, and

ACUH18LUAS1

Unit: in (mm)

Ceiling

View A

22-7/16 (570): Indoor unit

Hanging bolt position

a: Ceiling openings

20-7/8 (530)

Hanging bolt position

Drain hose

4-7/8 (124)

Control Box

24-7/16 (620)

IR receiver

Grid type grille

View B View C

20-7/8

(530)

2-15/16

(75)

14-9/16

(370)

21-1/4 (540)

11-1/4

(285)

11-1/4

(285)

4-1/2 (114)

10-5/16

(262)

9-5/8

(245)

5-13/16

(146)

1-9/16

(40)

(102)

5-5/16

(135)

9-13/16

(250)

1-3/5

(40)

3-7/8

(99)

1-3/16

(30)

1-3/16 (30)

2-5/16 (58) 4-1/8

(108)

a: Ceiling openings

Cassette grille (Option [Grid type]) in (mm) 22-13/16 to 24 (580 to 610)

- 4 -

2-1. Models: ACUH09LUAS1, ACUH12LUAS1, and ACUH18LUAS1 2. Dimensions

CASSETTE TYPE

ADUH09-18LUAS1

CASSETTE TYPE

ADUH09-18LUAS1

2-2. Installation space requirement

40 (1,000)

or more

40 (1,000)

or more

99 (2,500)

or more

11 (262)

or more

Strong and durable ceiling

Obstruction

Floor

Unit: in (mm)

Maximum height from floor to ceiling [Unit: in (mm)]

Standard 107 (2,700)

High ceiling 119 (3,000)

3-way direction setting:

4 (100) or more*

Unit: in (mm)

NOTES:

• To set “3-direction”, optional Air outlet shutter plate (UTR-YDZB) must be installed, and the “out-

let-direction” need to be switched to “3-way” by remote controller.

*When installing the indoor unit, be careful about the maintenance space.

• In 3-way outlet mode, changing of ceiling height setting by function setting 20 is prohibited.

(Ceiling height setting [function setting 20] is allowed to be changed only in 4-way outlet mode.)

- 5 -

2-2. Installation space requirement 2. Dimensions

CASSETTE TYPE

ADUH09-18LUAS1

CASSETTE TYPE

ADUH09-18LUAS1

3. Wiring diagram

3-1. Models: ACUH09LUAS1, ACUH12LUAS1, and

ACUH18LUAS1

- 6 -

3-1. Models: ACUH09LUAS1, ACUH12LUAS1, and ACUH18LUAS1 3. Wiring diagram

CASSETTE TYPE

ADUH09-18LUAS1

CASSETTE TYPE

ADUH09-18LUAS1

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