Fujitsu AUU7RLF Service manual

AIR CONDITIONER
Multi: 2, 3 rooms type
DESIGN & TECHNICAL MANUAL
For Extra Cold Climate Area
INDOOR
AUU7RLF
AUU9RLF
AUU12RLF
AUU18RLF
ARU7RLF
ARU9RLF
ARU12RLF
ARU18RLF
ASU7RLF1
ASU9RLF1
ASU12RLF1
ASU15RLF1
ASU18RLF AGU9RLF
AGU12RLF
AGU15RLF
OUTDOOR
AOU18RLXFZH
AOU24RLXFZH
DR_MU009EF_04
2018.05.24

Notices:
• Product specifications and design are subject to change without notice for future improvement.
• For further details, please check with our authorized dealer.
Copyright © 2016, 2018 Fujitsu General Limited. All rights reserved.

CONTENTS
Part 1. INDOOR UNIT...........................................................................1
1. Model lineup ..................................................................................................2
1-1. Indoor unit connection patterns........................................................................................3
2. Specifications................................................................................................4
2-1. Compact cassette type ....................................................................................................4
2-2. Slim duct type ..................................................................................................................5
2-3. Wall mounted type ...........................................................................................................7
2-4. Floor type.........................................................................................................................9
3. Dimensions..................................................................................................10
3-1. Compact cassette type ..................................................................................................10
3-2. Slim duct type ................................................................................................................12
3-3. Wall mounted type .........................................................................................................16
3-4. Floor type.......................................................................................................................20
4. Wiring diagrams ..........................................................................................21
4-1. Compact cassette type ..................................................................................................21
4-2. Slim duct type ................................................................................................................22
4-3. Wall mounted type .........................................................................................................23
4-4. Floor type.......................................................................................................................25
5. Air velocity and temperature distributions ...............................................26
5-1. Compact cassette type ..................................................................................................26
5-2. Slim duct type ................................................................................................................32
5-3. Wall mounted type .........................................................................................................40
5-4. Floor type.......................................................................................................................45
6. Fan performance .........................................................................................46
6-1. Slim duct type ................................................................................................................46
7. Airflow..........................................................................................................54
7-1. Compact cassette type ..................................................................................................54
7-2. Slim duct type ................................................................................................................55
7-3. Wall mounted type .........................................................................................................56
7-4. Floor type.......................................................................................................................57
8. Noise level curve.........................................................................................58
8-1. Compact cassette type ..................................................................................................58
8-2. Slim duct type ................................................................................................................60
8-3. Wall mounted type .........................................................................................................62
8-4. Floor type.......................................................................................................................65
8-5. Sound level check point .................................................................................................67
9. Electrical characteristics............................................................................69
10. Safety devices .............................................................................................70
11. External input and output...........................................................................71
11-1.External input................................................................................................................71

11-2.External output..............................................................................................................74
12. Group connection .......................................................................................81
12-1.Precautions on creating a group connection.................................................................82
12-2.Remote controller address setting procedure for wireless remote controllers...............84
13. Remote controller .......................................................................................85
13-1.Wireless remote controller (UTY-LNHUM) ....................................................................85
13-2.Wireless remote controller (AR-REG1U).......................................................................87
13-3.Wired remote controller (UTY-RNNUM)........................................................................89
14. Function settings ........................................................................................93
14-1.Indoor unit (setting by jumper wire)...............................................................................93
14-2.Indoor unit (setting by wireless remote controller).........................................................94
14-3.Indoor unit (setting by wired remote controller) ...........................................................107
14-4.Indoor unit (setting by simple remote controller) .........................................................110
14-5.Function details...........................................................................................................114
14-6.Wired remote controller...............................................................................................119
14-7.Simple remote controller .............................................................................................121
15. Accessories...............................................................................................122
15-1.Compact cassette type ...............................................................................................122
15-2.Slim duct type .............................................................................................................123
15-3.Wall mounted type ......................................................................................................124
15-4.Floor type....................................................................................................................126
16. Optional parts............................................................................................127
16-1.Controllers ..................................................................................................................127
16-2.Cassette grille .............................................................................................................128
16-3.Others .........................................................................................................................129
17. Indoor unit installation precautions ........................................................131
17-1.Places where prohibited for use..................................................................................131
17-2.Points to remember when installing ............................................................................132
CONTENTS (continued)

Part 2. OUTDOOR UNIT (2 ROOMS TYPE) ....................................135
1. Specifications............................................................................................136
2. Dimensions................................................................................................137
2-1. Model: AOU18RLXFZH ...............................................................................................137
3. Installation space ......................................................................................138
3-1. Model: AOU18RLXFZH ...............................................................................................138
4. Refrigerant circuit .....................................................................................141
4-1. Model: AOU18RLXFZH ...............................................................................................141
5. Wiring diagram ..........................................................................................142
5-1. Model: AOU18RLXFZH ...............................................................................................142
6. Capacity table............................................................................................143
6-1. Combinations...............................................................................................................143
6-2. Cooling capacity...........................................................................................................145
6-3. Heating capacity ..........................................................................................................150
7. Capacity compensation rate for pipe length and height difference......155
7-1. Model: AOU18RLXFZH ...............................................................................................155
8. Additional charge calculation ..................................................................157
8-1. Model: AOU18RLXFZH ...............................................................................................157
9. Airflow........................................................................................................158
9-1. Model: AOU18RLXFZH ...............................................................................................158
10. Operation noise (sound pressure)...........................................................159
10-1.Noise level curve.........................................................................................................159
10-2.Sound level check point ..............................................................................................159
11. Electrical characteristics..........................................................................160
12. Safety devices ...........................................................................................161
13. Accessories...............................................................................................162
14. Outdoor unit installation precautions .....................................................163
14-1.Points to remember when installing ............................................................................163
CONTENTS (continued)

Part 3. OUTDOOR UNIT (3 ROOMS TYPE) ....................................165
1. Specifications............................................................................................166
2. Dimensions................................................................................................167
2-1. Model: AOU24RLXFZH ...............................................................................................167
3. Installation space ......................................................................................168
3-1. Model: AOU24RLXFZH ...............................................................................................168
4. Refrigerant circuit .....................................................................................171
4-1. Model: AOU24RLXFZH ...............................................................................................171
5. Wiring diagram ..........................................................................................172
5-1. Model: AOU24RLXFZH ...............................................................................................172
6. Capacity table............................................................................................173
6-1. Combinations...............................................................................................................173
6-2. Cooling capacity...........................................................................................................175
6-3. Heating capacity ..........................................................................................................186
7. Capacity compensation rate for pipe length and height difference......197
7-1. Model: AOU24RLXFZH ...............................................................................................197
8. Additional charge calculation ..................................................................200
8-1. Model: AOU24RLXFZH ...............................................................................................200
9. Airflow........................................................................................................201
9-1. Model: AOU24RLXFZH ...............................................................................................201
10. Operation noise (sound pressure)...........................................................202
10-1.Noise level curve.........................................................................................................202
10-2.Sound level check point ..............................................................................................202
11. Electrical characteristics..........................................................................203
12. Safety devices ...........................................................................................204
13. Accessories...............................................................................................205
14. Outdoor unit installation precautions .....................................................206
14-1.Points to remember when installing ............................................................................206
CONTENTS (continued)

Part 1. INDOOR UNIT
COMPACT CASSETTE
TYPE:
AUU7RLF
AUU9RLF
AUU12RLF
AUU18RLF
WALL MOUNTED TYPE:
ASU7RLF1
ASU9RLF1
ASU12RLF1
ASU15RLF1
ASU18RLF
SLIM DUCT TYPE:
ARU7RLF
ARU9RLF
ARU12RLF
ARU18RLF
FLOOR TYPE:
AGU9RLF
AGU12RLF
AGU15RLF

1. Model lineup
Indoor unit
AUU7RLF
AUU9RLF
AUU12RLF
AUU18RLF
ARU7RLF
ARU9RLF
ARU12RLF
ARU18RLF
ASU7RLF1
ASU9RLF1
ASU12RLF1
ASU15RLF1
ASU18RLF AGU9RLF
AGU12RLF
AGU15RLF
Outdoor unit
AOU18RLXFZH AOU24RLXFZH
¢Indoor units that can be connected to each outdoor unit
●: Connectable / -: Not connectable
Outdoor unit
Compact
cassette Slim duct Wall mounted Floor
AUU7—18RLF ARU7—18RLF ASU7—15RLF1 ASU18RLF AGU9—
15RLF
kBtu class 7 9 12 18 7 9 12 18 7 9 12 15 18 9 12 15
2 rooms AOU18RLXFZH ● ● ● - ● ● ● - ● ● ● - - ● ● -
3 rooms AOU24RLXFZH ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
- 2 - 1. Model lineup
MULTI TYPE 2-3 rooms type MULTI TYPE 2-3 rooms type

1-1. Indoor unit connection patterns
¢2 rooms
Outdoor unit: AOU18RLXFZH
No. Room 1 Room 2 Total
1 7 7 14
2 7 9 16
3 7 12 19
4 9 9 18
5 9 12 21
7: 7,000Btu/h, 9: 9,000Btu/h, 12: 12,000Btu/h
¢3 rooms
Outdoor unit: AOU24RLXFZH
No. Room 1 Room 2 Room 3 Total
1 7 7 — 14
2 7 9 — 16
3 7 12 — 19
4 7 15 — 22
5 7 18 — 25
6 9 9 — 18
7 9 12 — 21
8 9 15 — 24
9 9 18 — 27
10 12 12 — 24
11 12 15 — 27
12 7 7 7 21
13 7 7 9 23
14 7 7 12 26
15 7 9 9 25
16 9 9 9 27
7: 7,000Btu/h, 9: 9,000Btu/h, 12: 12,000Btu/h, 15: 14,000Btu/h, 18: 18,000Btu/h,
- 3 -
1-1. Indoor unit connection patterns 1. Model lineup
MULTI TYPE 2-3 rooms type MULTI TYPE 2-3 rooms type

2. Specifications
2-1. Compact cassette type
Model name AUU7RLF AUU9RLF AUU12RLF AUU18RLF
Power supply 208/230 V ~ 60 Hz
Available voltage range 187—264 V
Capacity Btu/h class 7,000 9,000 12,000 18,000
Input power W 18 18 23 39
Running current A 0.15 0.15 0.19 0.30
Fan
Airflow rate
Cooling
HIGH
CFM (m3/h)
318 (540) 318 (540) 359 (610) 441 (750)
MED 288 (490) 288 (490) 312 (530) 359 (610)
LOW 259 (440) 259 (440) 277 (470) 306(520)
QUIET 230 (390) 230 (390) 241 (410) 241 (410)
Heating
HIGH 318 (540) 318 (540) 359 (610) 471 (800)
MED 288 (490) 288 (490) 312 (530) 418 (710)
LOW 259 (440) 259 (440) 277 (470) 353 (600)
QUIET 230 (390) 230 (390) 241 (410) 265 (450)
Type × Q'ty Turbo fan × 1
Motor output W 54
Sound pressure level *
Cooling
HIGH
dB (A)
33 33 37 42
MED 31 31 33 37
LOW 29 29 31 33
QUIET 27 27 28 29
Heating
HIGH 34 34 37 44
MED 32 32 33 40
LOW 29 29 31 37
QUIET 27 27 28 30
Heat exchanger type
Dimensions (H × W × D) in (mm) 8-1/4 × 51-9/16 × 1/2 + 8-1/4 × 49-3/16 × 1/2 (210 × 1,310 × 13.3 + 210 × 1,250 × 13.3)
Fin pitch FPI 21
Rows × Stages 2 × 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)
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) Ø 3/4(I.D.), Ø 1-1/16(O.D.) [Ø 20.7 (I.D.), Ø 26.6 (O.D.)]
Cassette grille
Model name UTG-CCGF
Material PS
Color White
(Approximate color of Munsell N 9.25/)
Dimensions
(H × W × D)
Net in (mm) 1-15/16 × 27-9/16 × 27-9/16 (49 × 700 × 700)
Gross 4-3/4 × 30-1/8 × 29-3/4 (120 × 765 × 755)
Weight Net lb (kg) 5.7 (2.6)
Gross 10 (4.5)
Remote controller type Wired (Wireless [option])
NOTES:
• The protective function might work when using it outside the operation range.
• *: 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.
- 4 -
2-1. Compact cassette type 2. Specifications
MULTI TYPE 2-3 rooms type MULTI TYPE 2-3 rooms type

2-2. Slim duct type
Model name ARU7RLF ARU9RLF ARU12RLF
Power supply 208/230 V ~ 60 Hz
Available voltage range 187—264 V
Capacity Btu/h class 7,000 9,000 12,000
Input power W 33 49 58
Running current A 0.30 0.30 0.35
Fan
Airflow rate
Cooling
HIGH
CFM (m3/h)
324 (550) 353 (600) 383 (650)
MED 288 (490) 324 (550) 353 (600)
LOW 277 (470) 294 (500) 324 (550)
QUIET 259 (440) 265 (450) 283 (480)
Heating
HIGH 324 (550) 353 (600) 383 (650)
MED 288 (490) 324 (550) 353 (600)
LOW 277 (470) 294 (500) 324 (550)
QUIET 259 (440) 265 (450) 283 (480)
Type × Q'ty Sirocco fan × 2
Motor output W 80 81
Recommended static pressure inWG (Pa) 0 to 0.36 (0 to 90)
Sound pressure level *
Cooling
HIGH
dB (A)
28 28 29
MED 26 27 28
LOW 25 26 27
QUIET 24 25 26
Heating
HIGH 28 28 29
MED 26 26 28
LOW 25 25 27
QUIET 24 24 24
Heat exchanger type
Dimensions (H × W × D) in (mm) 11-9/16 × 19-11/16 × 1-1/16
(294 × 500 × 26.6)
11-9/16 × 19-11/16 × 1-9/16
(294 × 500 × 39.9)
Fin pitch FPI 20
Rows × Stages 2 × 14 3 × 14
Pipe type Copper tube
Fin type Aluminum
Enclosure Material Galvanized steel sheet
Color -
Dimensions
(H × W × D)
Net in (mm) 7-13/16 × 27-9/16 × 24-7/16 (198 × 700 × 620)
Gross 10-13/16 × 37-3/16 × 30-3/8 (274 × 945 × 772)
Weight Net lb (kg) 37 (17) 40 (18)
Gross 49 (22) 51 (23)
Connection pipe Size Liquid in (mm) Ø1/4 (Ø6.35)
Gas Ø3/8 (Ø9.52)
Method Flare
Drain hose Material Hard PVC
Size in (mm) Ø 3/4 (I.D.), Ø 1-1/16 (O.D.) [Ø 20.7 (I.D.), Ø 26.6 (O.D.)]
Operation range Cooling °F (°C) 64 to 90 (18 to 32)
%RH 80 or less
Heating °F (°C) 60 to 88 (16 to 31)
Remote controller type Wired (Wireless [option])
NOTES:
• Specifications are based on the following conditions.
– Standard static pressure: 0.10 inWG (25 Pa)
• The protective function might work when using it outside the operation range.
• *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.
- 5 -
2-2. Slim duct type 2. Specifications
MULTI TYPE 2-3 rooms type MULTI TYPE 2-3 rooms type

Model name ARU18RLF
Power supply 208/230 V ~ 60 Hz
Available voltage range 187—264 V
Capacity Btu/h class 18,000
Input power W 73
Running current A 0.44
Fan
Airflow rate
Cooling
HIGH
CFM (m3/h)
554 (940)
MED 518 (880)
LOW 483 (820)
QUIET 442 (750)
Heating
HIGH 554 (940)
MED 518 (880)
LOW 483 (820)
QUIET 442 (750)
Type × Q'ty Sirocco × 3
Motor output W 81
Recommended static pressure inWG (Pa) 0 to 0.36 (0 to 90)
Sound pressure level *2
Cooling
HIGH
dB (A)
32
MED 31
LOW 30
QUIET 29
Heating
HIGH 33
MED 32
LOW 31
QUIET 29
Heat exchanger type
Dimensions (H × W × D) in (mm) 11-9/16 × 27-9/16 × 1-9/16
(294 × 700 × 39.9)
Fin pitch FPI 20
Rows × Stages 3 × 14
Pipe type Copper tube
Fin type Aluminum
Enclosure Material Galvanized steel sheet
Color -
Dimensions
(H × W × D)
Net
in (mm)
7-13/16 x 35-7/16 x 24-7/16
(198 × 900 × 620)
Gross 10-13/16 x 45-1/16 x 30-3/8
(274 × 1,145 × 772)
Weight Net lb (kg) 49 (22)
Gross 60 (27)
Connection pipe Size Liquid mm (in) Ø1/4 (Ø6.35)
Gas Ø1/2 (Ø12.70)
Method Flare
Drain hose Material HARD PVC
Size in (mm) Ø 3/4(I.D.), Ø 1-1/16(O.D.) [Ø 20.7 (I.D.), Ø 26.6 (O.D.)]
Operation range Cooling °F (°C) 64 to 90 (18 to 32)
%RH 80 or less
Heating °F (°C) 60 to 88 (16 to 31)
Remote controller type Wired (Wireless [option])
NOTES:
• Specifications are based on the following conditions.
– Standard static pressure: 0.10 inWG (25 Pa)
• The protective function might work when using it outside the operation range.
• *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.
- 6 -
2-2. Slim duct type 2. Specifications
MULTI TYPE 2-3 rooms type MULTI TYPE 2-3 rooms type

2-3. Wall mounted type
Model name ASU7RLF1 ASU9RLF1 ASU12RLF1 ASU15RLF1
Power supply 208/230 V ~ 60 Hz
Available voltage range 187—264 V
Capacity Btu/h class 7,000 9,000 12,000 14,000
Input power W 15 17 22 28
Running current A 0.13 0.15 0.19 0.25
Fan
Airflow rate
Cooling
HIGH
CFM (m3/h)
330 (560) 353 (600) 388 (660) 430 (730)
MED 294 (500) 306 (520) 330 (560) 353 (600)
LOW 253 (430) 253 (430) 265 (450) 312 (530)
QUIET 182 (310) 182 (310) 182 (310) 212 (360)
Heating
HIGH 330 (560) 353 (600) 388 (660) 430 (730)
MED 294 (500) 306 (520) 330 (560) 362 (615)
LOW 253 (430) 253 (430) 277 (470) 330 (560)
QUIET 194 (330) 194 (330) 194 (330) 221 (375)
Type × Q'ty Cross flow fan × 1
Motor output W 30
Sound pressure level *
Cooling
HIGH
dB (A)
36 37 40 42
MED 32 33 36 38
LOW 29 29 30 33
QUIET 21 21 21 25
Heating
HIGH 36 37 40 42
MED 32 33 36 38
LOW 29 29 31 35
QUIET 22 22 22 27
Heat exchanger type
Dimensions (H × W × D) in (mm) Main: 12-5/8 × 24-13/16 × 13/16 (320 × 630 × 20)
Sub: 3-5/16 × 24-13/16 × 1/2 (84 × 630 × 13.3)
Fin pitch FPI Main: 23, Sub: 18
Rows × Stages Main: 2 × 20, Sub: 1 × 4
Pipe type Copper tube
Fin type Aluminum
Enclosure
Material Polystyrene
Color White
(Approximate color of Munsell N 9.25/)
Dimensions
(H × W × D)
Net in (mm) 10-9/16 × 33-1/16 × 8 (268 × 840 × 203)
Gross 10-5/8 × 34-13/16 × 14-3/4 (270 × 884 × 336)
Weight Net lb (kg) 19 (8.5)
Gross 23 (10.5)
Connection pipe Size Liquid in (mm) Ø1/4 (Ø6.35)
Gas Ø3/8 (Ø9.52) Ø1/2 (Ø12.70)
Method Flare
Drain hose Material PP + LLDPE
Size in (mm) Ø 9/16(I.D.), Ø 5/8 to Ø 11/16(O.D.) [Ø 13.8(I.D.), Ø 15.8 to Ø 16.7(O.D.)]
Operation range Cooling °F (°C) 64 to 90 (18 to 32)
%RH 80 or less
Heating °F (°C) 60 to 88 (16 to 31)
Remote controller type Wireless (Wired [option])
NOTES:
• The protective function might work when using it outside the operation range.
• *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.
- 7 -
2-3. Wall mounted type 2. Specifications
MULTI TYPE 2-3 rooms type MULTI TYPE 2-3 rooms type

Model name ASU18RLF
Power supply 208/230 V ~ 60 Hz
Available voltage range 187—264 V
Capacity Btu/h class 18,000
Input power W 41
Running current A 0.32
Fan
Airflow rate
Cooling
HIGH
CFM (m3/h)
542 (920)
MED 436 (740)
LOW 365 (620)
QUIET 324 (550)
Heating
HIGH 542 (920)
MED 436 (740)
LOW 365 (620)
QUIET 324 (550)
Type × Q'ty Cross flow fan ×1
Motor output W 42
Sound pressure level *2
Cooling
HIGH
dB (A)
43
MED 37
LOW 33
QUIET 31
Heating
HIGH 44
MED 37
LOW 33
QUIET 31
Heat exchanger type
Dimensions (H × W × D) in (mm) Main: 15-7/8 × 33-3/4 × 1-1/16 (378 × 832 × 26.6)
Sub: 3-5/16 × 33-3/4 × 1/2 (84 × 832 × 13.3)
Fin pitch FPI Main: 21, Sub: 18
Rows × Stages Main: 2 × 18, Sub: 1 × 4
Pipe type Copper tube
Fin type Aluminum
Enclosure
Material Polystyrene
Color White
(Approximate color of Munsell N 9.25/)
Dimensions
(H × W × D)
Net in (mm) 12-5/8 × 39-1/4 × 9 (320 × 998 × 228)
Gross 12-9/16 × 42-15/16 × 16-7/8 (319 × 1,090 × 429)
Weight Net lb (kg) 31 (14)
Gross 40 (18)
Connection pipe Size Liquid mm (in) Ø1/4 (Ø6.35)
Gas Ø1/2 (Ø12.70)
Method Flare
Drain hose Material PVC
Size in (mm) Ø 1/2(I.D.), Ø 5/8(O.D.) [Ø 12(I.D.), Ø 16(O.D.)]
Operation range Cooling °F (°C) 64 to 90 (18 to 32)
%RH 80 or less
Heating °F (°C) 60 to 88 (16 to 31)
Remote controller type Wireless (Wired [option])
NOTES:
• The protective function might work when using it outside the operation range.
• *: These are the measured values in the 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.
- 8 -
2-3. Wall mounted type 2. Specifications
MULTI TYPE 2-3 rooms type MULTI TYPE 2-3 rooms type

2-4. Floor type
Model name AGU9RLF AGU12RLF AGU15RLF
Power supply 208/230 V ~ 60 Hz
Available voltage range 187—264 V
Capacity Btu/h class 9,000 12,000 14,000
Input power W 16 20 23
Running current A 0.15 0.18 0.20
Fan
Airflow rate
Cooling
HIGH
CFM (m3/h)
312 (530) 353 (600) 383 (650)
MED 259 (440) 288 (490) 306 (520)
LOW 212 (360) 224 (380) 235 (400)
QUIET 159 (270) 159 (270) 159 (270)
Heating
HIGH 312 (530) 353 (600) 383 (650)
MED 270 (460) 300 (510) 318 (540)
LOW 224 (380) 241 (410) 253 (430)
QUIET 159 (270) 159 (270) 159 (270)
Type × Q'ty Cross flow fan × 2
Motor output W 16
Sound pressure level *
Cooling
HIGH
dB (A)
39 42 44
MED 34 36 38
LOW 28 30 31
QUIET 22 22 22
Heating
HIGH 39 42 44
MED 35 38 39
LOW 30 32 33
QUIET 22 22 22
Heat exchanger type
Dimensions (H × W × D) in (mm) 14-7/8 × 21-5/8 × 1-1/16 (378 × 550 × 26.6)
Fin pitch FPI 21
Rows × Stages 2 x 18
Pipe type Copper tube
Fin type Aluminium
Enclosure
Material Polystyrene
Color White
(Approximate color of Munsell N 9.25/)
Dimensions
(H × W × D)
Net in (mm) 23-5/8 × 29-1/8 × 7-7/8 (600 × 740 × 200)
Gross 27-9/16 × 32-5/16 × 12-3/16 (700 × 820 × 310)
Weight Net lb (kg) 31 (14)
Gross 37 (17)
Connection pipe Size Liquid in (mm) Ø1/4 (Ø 6.35)
Gas Ø3/8 (Ø 9.52) Ø1/2 (Ø 12.70)
Method Flare
Drain hose Material PVC
Size in (mm) Ø 9/16 (I.D.), Ø 11/16 (O.D.) [Ø 13.8 (I.D.), Ø 16.7 (O.D.)]
Operation range Cooling °F (°C) 64 to 90 (18 to 32)
%RH 80 or less
Heating °F (°C) 60 to 86 (16 to 30)
Remote controller type Wireless (Wired [option])
NOTES:
• The protective function might work when using it outside the operation range.
• *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.
- 9 -
2-4. Floor type 2. Specifications
MULTI TYPE 2-3 rooms type MULTI TYPE 2-3 rooms type

3. Dimensions
3-1. Compact cassette type
¢Models: AUU7RLF, AUU9RLF, AUU12RLF, and AUU18RLF
20-7/8 (530): Hanging bolt position
4 (102)
5-5/16
(135) 9-13/16 (250)
27-9/16 (700)
27-9/16 (700)
2-15/16 (75)
1-3/16 (30)
1-3/16 (30)
10-5/16 (262)
21-1/4 (540): Hanging bolt position
22-7/16 (570): Indoor unit
22-13/16 to 26 (580 to 660) : Ceiling openings
• Cassette grille mounting state
Top view
5-14/16 to 7-7/8 (150 to 200)
Min. 17-11/16 (450)
Min. 17-11/16 (450)
Maintenance space
Side view
8-7/16 (215)
4-13/16 (123)
2-5/16 (58)
4-1/2 (114)
5-3/4 (146)
4-1/4 (108)
4 (102)
9-5/8 (245)
1-3/16 (30)
1-9/16 (40) 3-7/8 (99)
Drain port
Control box
Ceiling
Drain port
Be sure to leave
maintenance space
for future service
at the designated
position.
Bottom view
1-3/16 (30) 1-15/16 (49)
Side view
Unit: in (mm)
- 10 -
3-1. Compact cassette type 3. Dimensions
MULTI TYPE 2-3 rooms type MULTI TYPE 2-3 rooms type

Installation space
40 (1,000)
or more
40 (1,000)
or more
95 (2,400)
or more
11 (262)
or more
Strong and durable ceiling
Obstruction
Floor
Unit: in (mm)
Maximum height from floor to ceiling [Unit: in (mm)]
Model name AUU7RLF and AUU9RLF AUU12RLF and AUU18RLF
Standard mode 107
(2,700)
High ceiling mode — 119
(3,000)
•3-way direction setting
4 (100) or more*
Unit: in (mm)
NOTES:
• *: When installing the indoor unit, be careful about the maintenance space.
• 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.
• The ceiling height cannot be set in the 3-way outlet mode. Therefore, ceiling height setting
change by function setting 20 is prohibited. For details, refer to "Contents of function setting" on
page 114.
- 11 -
3-1. Compact cassette type 3. Dimensions
MULTI TYPE 2-3 rooms type MULTI TYPE 2-3 rooms type

3-2. Slim duct type
¢Models: ARU7RLF, ARU9RLF, and ARU12RLF
Rear view
View A
Top view
Side view
Front view
Bottom view
Drain port
2 (51)
22-5/8 (574)
6-17/8 (174)
2-13/16 (71)
6 (152)
3-15/16 (100) x 6 = 23-5/8 (600)
3-7/32 (82)
1-7/8 (48)
25-9/16 (650)
28-7/8 (734)
1-3/16 (30)
14-13/16 (377)
6-9/16
(167)
4-11/16 (119)
3-1/2 (89)
3-1/16 (78)
2-3/16 (55)
1-7/8 (47)
3/8 (10)
24-7/16 (620)
14-5/8 (371)
10-3/8 (264)
5-11/16 (144)
2-11/16 (69)
25-9/16 (650)
26-1/8 (664)
27-9/16 (700)
1-11/16 (43)
13/16 (20)
7-13/16 (198)
6-5/8 (168)
5-15/16
(151)
3-1/16 (78) 2-3/16 (55)
Unit: in (mm)
- 12 -
3-2. Slim duct type 3. Dimensions
MULTI TYPE 2-3 rooms type MULTI TYPE 2-3 rooms type

¢Model: ARU18RLF
Rear view
View A
Top view
Side view
Front view
Bottom view
Drain port
2 (51)
30-1/2 (774)
6-7/8 (174)
2-13/16 (71)
6 (152)
3-7/16 (87)
2-3/16 (56)
33-7/16 (850)
36-3/4 (934)
3-15/16 (100) x 8 = 31-1/2 (800)
1-3/16 (30)
14-13/16 (377)
6-9/16
(167)
4-11/16 (119)
3-1/2 (89)
3-1/16 (78)
2-3/16 (55)
1-7/8 (47)
3/8 (10)
24-7/16 (620)
14-5/8 (371)
10-3/8 (264)
5-11/16 (144)
2-11/16 (69)
33-7/16 (850)
34 (864)
35-7/16 (900)
1-11/16 (43)
13/16
(20)
7-13/16 (198)
6-5/8 (168)
5-15/16
(151)
3-1/16
(78) 2-3/16 (55)
Unit: in (mm)
- 13 -
3-2. Slim duct type 3. Dimensions
MULTI TYPE 2-3 rooms type MULTI TYPE 2-3 rooms type

¢Installation space requirement
Provide sufficient installation space for product safety.
In ceiling-concealed installations:
Left
side
Strong and durable ceiling
Indoor unit
Right
side
4 (100)
or more
12 (300)
or more Service access Ceiling
99 (2,500) or more
(When no ceiling)
Floor
10 (240) or more
1 (20) or more
1 (20) or more
12 (300) or more
Unit: in (mm)
In wall-concealed installations:
1 (10)
or less
1 (10)
or less
Left side
Strong and
durable floor
Right side
(PIPE side)
Grille
Inlet air
Strong and
durable floor
6
(150)
or more
4 (100)
or more
12 (300)
or more
1 (20)
or more
1 (20)
or more
6 (150)
or more
Unit: in (mm)
Left side
Strong and
durable floor
Right side
(PIPE side)
Duct
Grille
Inlet air
Strong and
durable floor
6
(150)
or more
4 (100)
or more
12 (300)
or more
1 (20)
or more
1 (20)
or more
6 (150)
or more
- 14 -
3-2. Slim duct type 3. Dimensions
MULTI TYPE 2-3 rooms type MULTI TYPE 2-3 rooms type