Fujitsu ASUG15LZAS Service manual

AIR CONDITIONER
Wall mounted type
DESIGN & TECHNICAL MANUAL
INDOOR
ASUG09LZAS
ASUG12LZAS
ASUG15LZAS
OUTDOOR
AOUG09LZAS1
AOUG12LZAS1
AOUG15LZAS1
DR_AS116EF_04
2022.10.12

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 LLC.
App Store® is a service mark of Apple Inc., registered in the U.S. and other countries.
Copyright © 2019, 2022 Fujitsu General Limited. All rights reserved.

CONTENTS
Part 1. INDOOR UNIT...........................................................................1
1. Specifications................................................................................................2
2. Wireless LAN control....................................................................................4
2-1. System requirement.........................................................................................................4
2-2. Wireless LAN function list ................................................................................................5
3. Dimensions....................................................................................................6
3-1. Models: ASUG09LZAS, ASUG12LZAS, and ASUG15LZAS ...........................................6
4. Wiring diagrams ............................................................................................8
4-1. Models: ASUG09LZAS, ASUG12LZAS, and ASUG15LZAS ...........................................8
5. Capacity table................................................................................................9
5-1. Cooling capacity...............................................................................................................9
5-2. Heating capacity ............................................................................................................11
6. Fan performance .........................................................................................13
6-1. Air velocity distributions..................................................................................................13
6-2. Airflow ............................................................................................................................15
7. Operation noise (sound pressure).............................................................18
7-1. Noise level curve............................................................................................................18
7-2. Sound level check point .................................................................................................19
8. Safety devices .............................................................................................20
9. External input and output...........................................................................21
9-1. External input.................................................................................................................22
9-2. External output...............................................................................................................23
9-3. Combination of external input and output.......................................................................24
9-4. Details of function ..........................................................................................................25
10. Remote controller .......................................................................................38
10-1.Wireless remote controller ............................................................................................38
11. Function settings .......................................................................................40
11-1.Function settings by using remote controller.................................................................40
11-2.Custom code setting for wireless remote controller.......................................................48
11-3.Switching the temperature unit of remote controller......................................................49
12. Accessories.................................................................................................50
13. Optional parts .............................................................................................51
13-1.Controllers ....................................................................................................................51
13-2.Others ...........................................................................................................................52

Part 2. OUTDOOR UNIT.....................................................................53
2-1. Specifications...........................................................................................54
2. Dimensions..................................................................................................55
2-1. Models: AOUG09LZAS1, AOUG12LZAS1, and AOUG15LZAS1 ..................................55
3. Installation space ........................................................................................56
3-1. Models: AOUG09LZAS1, AOUG12LZAS1, and AOUG15LZAS1 ..................................56
4. Refrigerant circuit .......................................................................................59
4-1. Models: AOUG09LZAS1, AOUG12LZAS1, and AOUG15LZAS1 ..................................59
5. Wiring diagrams ..........................................................................................60
5-1. Models: AOUG09LZAS1, AOUG12LZAS1, and AOUG15LZAS1 ..................................60
6. Capacity compensation rate for pipe length and height difference........61
6-1. Models: AOUG09LZAS1 and AOUG12LZAS1 ..............................................................61
6-2. Model: AOUG15LZAS1..................................................................................................62
7. Additional charge calculation ....................................................................63
7-1. Models: AOUG09LZAS1 and AOUG12LZAS1 ..............................................................63
7-2. Model: AOUG15LZAS1..................................................................................................63
8. Airflow..........................................................................................................64
8-1. Model: AOUG09LZAS1..................................................................................................64
8-2. Model: AOUG12LZAS1..................................................................................................64
8-3. Model: AOUG15LZAS1..................................................................................................65
9. Operation noise (sound pressure).............................................................66
9-1. Noise level curve............................................................................................................66
9-2. Sound level check point .................................................................................................67
10. Electrical characteristics..........................................................................68
11. Safety devices .............................................................................................69
12. Accessories.................................................................................................70
CONTENTS (continued)

Part 1. INDOOR UNIT
WALL MOUNTED TYPE:
ASUG09LZAS
ASUG12LZAS
ASUG15LZAS

1. Specifications
Type
Wall mounted
Inverter heat pump
Model name ASUG09LZAS ASUG12LZAS ASUG15LZAS
Power supply 208/230 V ~60 Hz
Power supply intake Outdoor unit
Available voltage range 187—253 V
Capacity
Cooling
Rated kW 2.64 3.52 4.25
Btu/h 9,000 12,000 14,500
Min.—Max. kW 0.91—3.52 0.91—3.99 0.91—5.39
Btu/h 3,100—12,000 3,100—13,600 3,100—18,400
Heating
Rated kW 3.52 4.69 5.28
Btu/h 12,000 16,000 18,000
Min.—Max. kW 0.91—6.45 0.91—6.48 0.91—7.00
Btu/h 3,100—22,000 3,100—22,100 3,100—23,900
Heating
(17°F)*1
Rated kW 2.17 2.93 3.28
Btu/h 7,400 10,000 11,200
Max. kW 4.69 5.13 6.30
Btu/h 16,000 17,500 21,500
Heating
(5°F)*2
Rated kW 4.51 4.87 5.13
Btu/h 15,400 16,600 17,500
Max. kW 4.51 4.87 6.15
Btu/h 15,400 16,600 21,000
Input power
Cooling Rated
kW
0.50 0.79 1.04
Min.—Max. 0.11—0.85 0.11—0.99 0.15—1.56
Heating Rated 0.66 1.01 1.15
Min.—Max. 0.17—1.93 0.17—1.94 0.15—2.19
Heating
(17°F)*1
Rated 0.60 0.88 1.01
Max. 2.06 2.59
Heating
(5°F)*2
Rated 2.10 2.09 2.03
Max. 2.10 2.75
Current Cooling Rated A 2.5 3.8 4.8
Heating 3.3 4.7 5.2
EER2 Cooling kW/kW 5.28 4.46 4.09
Btu/hW 18.0 15.2 13.9
COP2 Heating kW/kW 5.34 4.64 4.60
Btu/hW 18.2 15.8 15.7
SEER2 Cooling Btu/hW 33.1 29.4 25.3
HSPF2 Heating Btu/hW 13.4 12.9 12.8
Power factor Cooling %87 90 94
Heating 87 93 96
Moisture removal pints/h (L/h) 2.5 (1.2) 2.7 (1.3) 4.0 (1.9)
Maximum operating current*3Cooling A9.4 9.9
Heating 10.9 13.4
Fan
Airflow rate
Cooling
HIGH
CFM (m3/h)
542 (920) 583 (990)
MED 406 (690) 459 (780)
LOW 312 (530) 312 (530)
QUIET 206 (350) 241 (410)
Heating
HIGH 542 (920) 600 (1,020)
MED 406 (690) 459 (780)
LOW 312 (530) 312 (530)
QUIET 206 (350) 241 (410)
Type × Qty Crossflow fan × 1
Motor output W 59
Sound pressure level*4
Cooling
HIGH
dB (A)
43 45
MED 37 40
LOW 31 32
QUIET 23 26
Heating
HIGH 43 45
MED 36 39
LOW 31 32
QUIET 23 26
Heat exchanger type
Dimensions (H × W × D) in (mm)
Main1: 8-1/4 × 31-7/16 × 1-1/16 (210 × 798 × 26.6)
Main2: 5-5/16 × 31-7/16 × 13/16 (135 × 798 × 20.0)
Sub1: 3-5/16 × 31-7/16 × 1/2 (84 × 798 × 13.3)
Sub2: 3-5/16 × 31-7/16 × 1/2 (84 × 798 × 13.3)
Fin pitch FPI
Man 1: 21
Main 2: 23
Sub 1: 18
Sub 2: 18
Rows × Stages
Main 1: 2 × 10
Main 2: 2 × 8
Sub 1: 1 × 4
Sub 2: 1 × 4
Pipe type Copper
Fin type Aluminum
Enclosure
Material Polystyrene
Color White
Approximate color of Munsell N 9.25/
Dimensions
(H × W × D)
Net in (mm) 11 × 38-9/16 × 9-7/16 (280 × 980 × 240)
Gross 12-11/16 × 42-7/16 × 13-5/8 (322 × 1,078 × 346)
Weight Net lb (kg) 29 (13)
Gross 37 (17)
Connection pipe Size Liquid in (mm) Ø1/4 (Ø6.35)
Gas Ø3/8 (Ø9.52) Ø1/2 (Ø12.7)
Method Flare
Drain hose Material PP+LLDPE
Tip diameter in (mm) Ø7/32 (Ø13.8) (I.D.), Ø5/8 to 21/32 (Ø15.8 to 16.7) (O.D.)
- 2 - 1. Specifications
WALL MOUNTED ASUG09-15LZAS WALL MOUNTED ASUG09-15LZAS

Type
Wall mounted
Inverter heat pump
Model name ASUG09LZAS ASUG12LZAS ASUG15LZAS
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, Mobile app*5 [FGLair™] [option])
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 (15.56°CWB), and outdoor temperature of 47°FDB (8.33°CDB)/43°FWB (6.11°CWB).
– *1: Heating (17°F): Indoor temperature of 70°FDB (21.11°CDB)/60°FWB (15.56°CWB), and outdoor temperature of 17°FDB (-8.33°CDB)/15°FWB (-9.44°CWB).
– *2: Heating (5°F): Indoor temperature of 70°FDB (21.11°CDB)/60°FWB (15.56°CWB), and outdoor temperature of 5°FDB (-15.0°CDB)/4°FWB (-15.56°CWB).
– Test conditions are based on AHRI 210/240 2023.
– Pipe length: 25 ft (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.
• *3: Maximum current is maximum value when operated within the operation range.
• *4: 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: Available on Google Play™ store or on App Store®. Optional WLAN Adapter is also required. For details, refer to the setting manual.
M condition
Model name ASUG09LZAS ASUG12LZAS ASUG15LZAS
Capacity
Cooling
Rated kW 2.64 3.52 4.25
Btu/h 9,000 12,000 14,500
Min.—Max. kW 0.91—3.52 0.91—3.99 0.91—5.39
Btu/h 3,100—12,000 3,100—13,600 3,100—18,400
Heating
Rated kW 3.52 4.69 5.28
Btu/h 12,000 16,000 18,000
Min.—Max. kW 0.91—6.45 0.91—6.48 0.91—7.00
Btu/h 3,100—22,000 3,100—22,100 3,100—23,900
Heating
(17°F)*
Rated kW 2.17 2.93 3.28
Btu/h 7,400 10,000 11,200
Max. kW 4.69 5.13 6.30
Btu/h 16,000 17,500 21,500
Input power
Cooling Rated
kW
0.50 0.79 1.04
Min.—Max. 0.11—0.85 0.11—0.99 0.15—1.56
Heating Rated 0.66 1.01 1.15
Min.—Max. 0.17—1.93 0.17—1.94 0.15—2.19
Heating
(17°F)*
Rated 0.60 0.88 1.01
Max. 2.06 2.59
Current Cooling Rated A 2.5 3.8 4.8
Heating 3.3 4.7 5.2
EER Cooling kW/kW 5.28 4.46 4.09
Btu/hW 18.0 15.2 13.9
COP Heating kW/kW 5.34 4.64 4.60
Btu/hW 18.2 15.8 15.7
SEER Cooling Btu/hW 33.1 29.4 25.3
HSPF Heating Btu/hW 14.2 14.0 13.4
Power factor Cooling %87 90 94
Heating 87 93 96
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 (15.56°CWB), and outdoor temperature of 47°FDB (8.33°CDB)/43°FWB (6.11°CWB).
• *: Heating (17°F): Indoor temperature of 70°FDB (21.11°CDB)/60°FWB (15.56°CWB), and outdoor temperature of 17°FDB (-8.33°CDB)/15°FWB (-9.44°CWB).
• Test conditions are based on AHRI 210/240 2017.
• Pipe length: 25 ft (7.5 m), Height difference: 0 ft (0 m). (Between outdoor unit and indoor unit.)
- 3 - 1. Specifications
WALL MOUNTED ASUG09-15LZAS WALL MOUNTED ASUG09-15LZAS

2. Wireless LAN control
By installing Mobile App on a smart device, several functions can be controlled from outside the
house.
2-1. System requirement
Before using this function, prepare the following items:
•Wireless router:
Wireless LAN standard IEEE802.11b/g/n
Frequency bands* • U.S.A., Canada: 2.4 GHz (1ch—11ch)
• Other countries: 2.4 GHz (1ch—13ch)
Network security standard
• Open
• WEP
• WPA (PSK)
• WPA2 Personal (PSK)
• WPS for same-LAN registration
*: Usable only in the country or region where you purchased the product.
To check whether your wireless router complies with the network security standards listed above,
refer to the operation manual.
•Smartphone or Tablet PC:
App-compliant operating system iOS Check the latest version of supported OS
at Google Play store or App Store.
Android
• (mobile application):
Mobile App is available on Google Play store or on App Store.
After installation of Mobile App, user registration is required. For user registration and setup infor-
mation, refer to Setting Manual attached with the product.
For the latest version of the Wireless LAN (WLAN) control manuals, refer to the following web site.
https://www.fujitsu-general.com/global/support/
- 4 -
2-1. System requirement 2. Wireless LAN control
WALL MOUNTED ASUG09-15LZAS WALL MOUNTED ASUG09-15LZAS

2-2. Wireless LAN function list
NOTE: To use Wireless LAN control, user registration in advance and access to the wireless home
network are required.
Item Mobile App
Attached
wireless
remote
controller
Air conditioning
control function
Operation on/off ○ ○
Operation mode setting ○ ○
Set temperature setting ○ ○
Fan speed setting ○ ○
Airflow direction setting
Louver position adjustment
(vertical) ○ ○
Swing (vertical) ○ ○
Timer operation
Off timer — ○*1
On timer — ○*1
Sleep timer — ○*1
On/off program timer — ○*1
Weekly timer*2○○*1
POWERFUL operation setting ○*1○*1
ECONOMY operation setting ○ ○
Additional function MIN. HEAT operation setting ○*1○*1
Room temperature indication ○ —
Human sensor for energy saving setting ○*1○*1
Outdoor unit low noise operation setting ○*1○*1
App function Air conditioner error e-mail notification ○ —
*1: Not operable when wired remote controller is connected.
*2: Configurable functions of the weekly timer differs on wireless remote controller and on mobile ap-
plication. If timer settings are done from mobile application and from wireless remote controller, both
timer settings will be active.
- 5 -
2-2. Wireless LAN function list 2. Wireless LAN control
WALL MOUNTED ASUG09-15LZAS WALL MOUNTED ASUG09-15LZAS

3. Dimensions
3-1. Models: ASUG09LZAS, ASUG12LZAS, and ASUG15LZAS
Unit: in (mm)
Outline of indoor unit
1-7/16 (37) 1-7/16 (37)
15-3/4 (400) 3-9/16
(90)
16-1/4 (413)3-1/16
(77)
2-7/8
(73)
16-7/16 (417)2-3/8
(61)
16-7/8 (429)
4-1/2 (115)
2-13/16 (72)
for pipe inlet
Ø 2-9/16 (65)
for pipe inlet
Ø 2-9/16 (65)
38-9/16 (980) 9-7/16 (240)
11 (280)
- 6 -
3-1. Models: ASUG09LZAS, ASUG12LZAS, and ASUG15LZAS 3. Dimensions
WALL MOUNTED ASUG09-15LZAS WALL MOUNTED ASUG09-15LZAS