Fujitsu AIRSTAGE ASUH09KZAS Design & Technical Manual
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Fujitsu AIRSTAGE ASUH09KZAS Design & Technical Manual

Fujitsu AIRSTAGE ASUH09KZAS Design & Technical Manual

Wall mounted type
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AIR CONDITIONER
Wall mounted type
DESIGN & TECHNICAL MANUAL
INDOOR
OUTDOOR
ASUH09KZAS
ASUH12KZAS
ASUH15KZAS
AOUH09KZAH1
AOUH12KZAH1
AOUH15KZAH1
ASUH18KZAS
ASUH24KZAS
AOUH18KZAH1
AOUH24KZAH1
DR_AS233ES_02
2025.01.17

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Summary of Contents for Fujitsu AIRSTAGE ASUH09KZAS

  • Page 1 AIR CONDITIONER Wall mounted type DESIGN & TECHNICAL MANUAL INDOOR ASUH09KZAS ASUH18KZAS ASUH12KZAS ASUH24KZAS ASUH15KZAS OUTDOOR AOUH09KZAH1 AOUH18KZAH1 AOUH12KZAH1 AOUH24KZAH1 AOUH15KZAH1 DR_AS233ES_02 2025.01.17...
  • Page 2 App Store is a service mark of Apple Inc., registered in the U.S. and other countries. IOS is a trademark or registered trademark of Cisco in the U.S. and other countries and is used under license. Copyright © 2024, 2025 Fujitsu General Limited. All rights reserved.

  • Page 3: Table Of Contents

    CONTENTS Part 1. INDOOR UNIT................1 1. Specifications....................2 1-1. Models: ASUH09KZAS, ASUH12KZAS, and ASUH15KZAS ..........2 1-2. Models: ASUH18KZAS and ASUH24KZAS ................4 2. Wireless LAN control ..................6 2-1. System requirement ......................6 2-2. Wireless LAN function list ....................7 3. Dimensions.......................8 3-1. Models: ASUH09KZAS, ASUH12KZAS, and ASUH15KZAS ..........8 3-2.
  • Page 4 CONTENTS (continued) 14-1.Controllers ........................82 14-2.Others..........................84...
  • Page 5 CONTENTS (continued) Part 2. OUTDOOR UNIT..............85 1. Specifications....................86 1-1. Models: AOUH09KZAH1, AOUH12KZAH1, and AOUH15KZAH1 ........86 1-2. Models: AOUH18KZAH1 and AOUH24KZAH1 ..............87 2. Dimensions.....................88 2-1. Models: AOUH09KZAH1, AOUH12KZAH1, and AOUH15KZAH1 ........88 2-2. Models: AOUH18KZAH1 and AOUH24KZAH1 ..............89 3. Installation space ...................90 3-1.
  • Page 6 CONTENTS (continued) 13-2.Local setting procedure ....................120 14. Accessories ....................122 14-1.Models: AOUH09KZAH1, AOUH12KZAH1, and AOUH15KZAH1 .........122 14-2.Models: AOUH18KZAH1 and AOUH24KZAH1 ..............122 15. Optional parts....................123...

  • Page 7: Part 1. Indoor Unit

    Part 1. INDOOR UNIT WALL MOUNTED TYPE: ASUH09KZAS ASUH12KZAS ASUH15KZAS ASUH18KZAS ASUH24KZAS...

  • Page 8: Specifications

    1. Specifications 1-1. Models: ASUH09KZAS, ASUH12KZAS, and ASUH15KZAS Wall mounted Type Inverter, Heat pump Model name ASUH09KZAS ASUH12KZAS ASUH15KZAS Power supply intake Outdoor unit Voltage 208/230 System power supply Frequency Available voltage range 187—253 Indoor unit power supply (from outdoor unit) 208/230 2.64 3.52...
  • Page 9 Wall mounted Type Inverter, Heat pump Model name ASUH09KZAS ASUH12KZAS ASUH15KZAS Main 1: 8-1/4 × 31-5/16 × 1-1/16 (210 × 796 × 26.6) Main 2: 5-5/16 × 31-5/16 × 13/16 (135 × 796 × 20.0) Dimensions (H × W × D) in (mm) Sub 1: 3-5/16 ×...

  • Page 10: Models: Asuh18Kzas And Asuh24Kzas

    1-2. Models: ASUH18KZAS and ASUH24KZAS Wall mounted Type Inverter, Heat pump Model name ASUH18KZAS ASUH24KZAS Power supply intake Outdoor unit Voltage 208/230 System power supply Frequency Available voltage range 187—253 Indoor unit power supply (from outdoor unit) 208/230 5.28 6.45 Rated Btu/h 18,000...
  • Page 11 Wall mounted Type Inverter, Heat pump Model name ASUH18KZAS ASUH24KZAS Liquid Ø3/8 (Ø9.52) Size in (mm) Connection pipe Ø5/8 (Ø15.88) Method Flare Material Polypropylene + High-density polyethylene Drain hose Tip diameter in (mm) Ø17/32 (Ø13.8) (I.D.), Ø19/32 to 21/32 (Ø15.0 to 16.8) (O.D.) °F (°C) 64 to 90 (18 to 32) Cooling...

  • Page 12: Wireless Lan Control

    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 control manuals, refer to the following web site. https://www.fujitsu-general.com/global/support/ - 6 - 2-1. System requirement...

  • Page 13: Wireless Lan Function List

    2-2. Wireless LAN function list NOTE: To use the wireless LAN control, user registration in advance and access to the wireless home network are required. Attached Wireless Item Mobile app Remote Controller Air conditioning Operation on/off ○ ○ control function Operation mode setting ○...

  • Page 14: Dimensions

    3. Dimensions 3-1. Models: ASUH09KZAS, ASUH12KZAS, and ASUH15KZAS Unit: in (mm) 38-9/16 (980) 9-7/16 (240) 3-1/16 16-1/4 (413) 15-3/4 (400) 3-9/16 (77) (90) Outline of indoor unit for pipe inlet for pipe inlet Ø3-1/8 (80) Ø3-1/8 (80) 3-9/16 2-13/16 2-1/16 (52) (91) (72) 2-3/8 (60)

  • Page 15: Installation Space Requirement

    ¢ Installation space requirement Provide sufficient installation space for product safety. Unit: in (mm) Wall hook bracket 3 (70) or more 2(40) or more Outline of the indoor unit 7 (160) or more 4-5/8 (117) or more 60(1,500) or more The flare connection part should be installed outdoors.

  • Page 16: Models: Asuh18Kzas And Asuh24Kzas

    3-2. Models: ASUH18KZAS and ASUH24KZAS Unit: in (mm) 45-1/4 (1,150) 13-6/16 (340) 11 (280) 45-1/4 (1,150) 20-1/2 (520) 20-1/2 (520) 3-9/16 (90) 13/16 (20) Outline of unit 2-1/2 (64) 10/16 (16) 13-6/16 (340) 1-15/16 (50) 1-15/16 (50) 4-1/4 7/16 (11) 2-6/16 (61) 18-7/8 (479) 19-6/8 (502)
  • Page 17 ¢ Installation space requirement Provide sufficient installation space for product safety. CAUTION Do not place any other electrical products or household belongings under the product. Conden- sation dripping from the product might get them wet, and may cause damage or malfunction to the property.

  • Page 18: Pipe Exit Length From The Rear

    3-3. Pipe exit length from the rear Design the system considering the length of the pipes or hose exiting from the rear of the indoor unit. NOTE: Detailed shapes of the indoor unit and the tip of each pipe or hose may vary depending on the model.

  • Page 19: Wiring Diagrams

    4. Wiring diagrams 4-1. Models: ASUH09KZAS, ASUH12KZAS, ASUH15KZAS, ASUH18KZAS, and ASUH24KZAS - 13 - 4-1. Models: ASUH09KZAS, ASUH12KZAS, ASUH15KZAS, ASUH18KZAS, and 4. Wiring diagrams ASUH24KZAS...

  • Page 20: Capacity Table

    5. Capacity table Capacity tables show each of following values calculated based on the outdoor temperature and the indoor temperature, under given Airflow Rate (AFR): For cooling capacity: Total Capacity (TC), Sensible Heat Capacity (SHC), and Input Power (IP) For heating capacity: Total Capacity (TC) and Input Power (IP) 5-1.
  • Page 21 ¢ Model: ASUH12KZAS Indoor temperature °FDB °FWB °FDB kBtu kBtu kBtu kBtu kBtu kBtu 9.22 8.25 0.61 10.20 9.13 0.62 10.71 9.59 0.62 11.47 10.26 0.63 12.33 11.04 0.64 12.77 11.43 0.65 8.47 7.94 0.69 9.37 8.78 0.70 9.83 9.22 0.71 10.53 9.87...
  • Page 22 ¢ Model: ASUH15KZAS Indoor temperature °FDB °FWB °FDB kBtu kBtu kBtu kBtu kBtu kBtu 13.01 9.98 0.52 14.40 11.04 0.52 15.11 11.59 0.53 16.18 12.41 0.54 17.40 13.34 0.55 18.02 13.82 0.55 11.95 9.60 0.59 13.22 10.62 0.60 13.87 11.15 0.60 14.85 11.93...
  • Page 23 ¢ Model: ASUH18KZAS Indoor temperature °FDB °FWB °FDB kBtu kBtu kBtu kBtu kBtu kBtu 16.20 13.15 0.36 18.12 12.95 0.36 19.10 14.12 0.37 20.45 14.59 0.37 21.97 14.81 0.37 22.70 16.41 0.38 15.36 12.72 0.46 17.18 12.53 0.47 18.11 13.67 0.48 19.40 14.11...
  • Page 24 ¢ Model: ASUH24KZAS Indoor temperature °FDB °FWB °FDB kBtu kBtu kBtu kBtu kBtu kBtu 19.67 13.54 0.94 21.53 14.81 0.95 23.59 16.23 0.97 24.32 16.73 0.98 25.92 17.83 0.99 27.63 19.01 1.00 17.86 12.54 1.25 19.54 13.72 1.26 21.42 15.04 1.29 22.08 15.50...

  • Page 25: Heating Capacity

    5-2. Heating capacity NOTE: Values mentioned in the table are calculated based on the maximum capacity. ¢ Model: ASUH09KZAS Indoor temperature °FDB °FDB °FWB kBtu kBtu kBtu kBtu kBtu 12.02 1.90 11.71 1.93 11.40 1.97 11.08 2.01 10.77 2.05 14.60 1.84 14.22 1.87...
  • Page 26 ¢ Model: ASUH12KZAS Indoor temperature °FDB °FDB °FWB kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h 12.87 1.90 12.53 1.93 12.20 1.97 11.86 2.01 11.52 2.05 15.74 2.07 15.33 2.11 14.92 2.15 14.50 2.20 14.09 2.24 17.51 2.16 17.05 2.21 16.60 2.25 16.14 2.30 15.68 2.34...
  • Page 27 ¢ Model: ASUH18KZAS Indoor temperature °FDB °FDB °FWB kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h 20.16 3.26 19.63 3.33 19.11 3.40 18.58 3.47 18.05 3.53 24.12 3.38 23.49 3.45 22.86 3.52 22.23 3.59 21.60 3.66 26.82 3.54 26.12 3.61 25.40 3.69 24.72 3.76 24.02 3.83...

  • Page 28: Fan Performance

    6. Fan performance 6-1. Air velocity distributions ¢ Models: ASUH09KZAS and ASUH12KZAS Fan speed Operation mode Measuring conditions HIGH (ft) Unit: ft/s (m/s) Top view 3 (1.0) 2 (0.5) 7 (2.0) Horizontal louver: Up Vertical louver: Center (ft) Unit: ft/s (m/s) (ft) 7 (2.0) 2 (0.5)
  • Page 29 ¢ Model: ASUH15KZAS Fan speed Operation mode Measuring conditions HIGH (ft) Unit: ft/s (m/s) Top view 3 (1.0) 7 (2.0) 2 (0.5) Horizontal louver: Up Vertical louver: Center (ft) Unit: ft/s (m/s) (ft) 7 (2.0) 2 (0.5) 3 (1.0) Top view Horizontal louver: Up Vertical louver: Left &...
  • Page 30 ¢ Models: ASUH18KZAS and ASUH24KZAS Fan speed Operation mode Measuring conditions HIGH (ft) Unit: ft/s (m/s) Top view 7 (2.0) 5 (1.5) 3 (1.0) 2 (0.5) Horizontal louver: Up Vertical louver: Center (ft) (ft) Unit: ft/s (m/s) 5 (1.5) 7 (2.0) 2 (0.5) 3 (1.0) Top view...

  • Page 31: Airflow

    6-2. Airflow ¢ Model: ASUH09KZAS  Cooling Fan speed Airflow HIGH MED—HIGH MED—LOW QUIET  Heating Fan speed Airflow HIGH MED—HIGH MED—LOW QUIET - 25 - 6-2. Airflow 6. Fan performance...
  • Page 32 ¢ Model: ASUH12KZAS  Cooling Fan speed Airflow HIGH MED—HIGH MED—LOW QUIET  Heating Fan speed Airflow HIGH MED—HIGH MED—LOW QUIET - 26 - 6-2. Airflow 6. Fan performance...
  • Page 33 ¢ Model: ASUH15KZAS  Cooling Fan speed Airflow HIGH MED—HIGH MED—LOW QUIET  Heating Fan speed Airflow 1,010 HIGH MED—HIGH MED—LOW QUIET - 27 - 6-2. Airflow 6. Fan performance...
  • Page 34 ¢ Model: ASUH18KZAS  Cooling Fan speed Airflow 1,060 HIGH MED—HIGH MED—LOW QUIET  Heating Fan speed Airflow 1,150 HIGH MED—HIGH MED—LOW QUIET - 28 - 6-2. Airflow 6. Fan performance...
  • Page 35 ¢ Model: ASUH24KZAS  Cooling Fan speed Airflow 1,060 HIGH MED—HIGH MED—LOW QUIET  Heating Fan speed Airflow 1,200 HIGH 1,040 MED—HIGH MED—LOW QUIET - 29 - 6-2. Airflow 6. Fan performance...

  • Page 36: Operation Noise (Sound Pressure)

    7. Operation noise (sound pressure) 7-1. Noise level curve ¢ Model: ASUH09KZAS  Cooling  Heating NC-65 NC-65 NC-60 NC-60 NC-55 NC-55 HIGH HIGH NC-50 NC-50 NC-45 NC-45 NC-40 NC-40 NC-35 NC-35 NC-30 NC-30 NC-25 NC-25 NC-20 NC-20 NC-15 NC-15 QUIET QUIET 1,000...
  • Page 37 ¢ Model: ASUH15KZAS  Cooling  Heating NC-65 NC-65 NC-60 NC-60 NC-55 NC-55 HIGH HIGH NC-50 NC-50 NC-45 NC-45 NC-40 NC-40 NC-35 NC-35 NC-30 NC-30 NC-25 NC-25 NC-20 NC-20 NC-15 NC-15 QUIET QUIET 1,000 2,000 4,000 8,000 1,000 2,000 4,000 8,000 Octave band center frequency, Hz Octave band center frequency, Hz...
  • Page 38 ¢ Model: ASUH24KZAS  Cooling  Heating NC-65 NC-65 NC-60 NC-60 NC-55 NC-55 HIGH NC-50 NC-50 HIGH NC-45 NC-45 NC-40 NC-40 NC-35 NC-35 NC-30 NC-30 NC-25 NC-25 QUIET QUIET NC-20 NC-20 NC-15 NC-15 1,000 2,000 4,000 8,000 1,000 2,000 4,000 8,000 Octave band center frequency, Hz Octave band center frequency, Hz...

  • Page 39: Sound Level Check Point

    7-2. Sound level check point Microphone Microphone 40 in (1 m) NOTE: Detailed shape of the actual indoor unit might be slightly different from the one illustrated above. - 33 - 7-2. Sound level check point 7. Operation noise (sound pressure)

  • Page 40: Safety Devices

    8. Safety devices Model Type of protection Protection form ASUH09-24KZAS Circuit protection Current fuse (PCB*) 250 V, 3.15 A 257 ±18°F (125 ±10°C) Activate Fan motor stop Thermal protection Fan motor protection program 212 ±18°F (100 ±10°C) Reset Fan motor restart *PCB: Printed Circuit Board - 34 - 8.

  • Page 41: External Input And Output

    9. External input and output External Input and Output PCB Indoor unit PCB CN47 (Ext. out) CN65 (Ext. in/out PCB) CN46 (Ext. in) SW301 SW302 Rotary switch CN314 CN313 CN312 CN311 CN310 CN308 Connecting point Input/Output Function Input select Input signal Operation/Stop CN46 Input...

  • Page 42: External Input

    9-1. External input With using external input function, some functions on this product can be controlled from an external device. • “Operation/Stop” mode or "Forced stop" mode can be selected with function setting of indoor unit. • A twisted pair cable (22 AWG) should be used. Maximum length of cable is 492 ft (150 m). •...

  • Page 43: External Input And Output Pcb

    ¢ External Input and Output PCB The indoor unit Operation/Stop can be set by using the input connector on the PCB. • Input select Use either one of these types of connectors according to the application. (Both types of connec- tors cannot be used simultaneously.) –...

  • Page 44: Input Signal Type

    ¢ Input signal type • Indoor unit Input signal type is only "Edge". Edge • External Input and Output PCB The input signal type can be selected. Signal type (edge or pulse) can be switched by the DIP switch 2 (SW302) on the External Input and Output PCB.

  • Page 45: External Output

    9-2. External output Use an external output cable with appropriate external dimension, depending on the number of ca- bles to be installed. ¢ Indoor unit • A twisted pair cable (22 AWG)should be used. Maximum length of cable is 82 ft (25 m). •...
  • Page 46 ¢ External Input and Output PCB • A twisted pair cable (22AWG) should be used. Maximum length of cable is 82 ft (25 m). • Output voltage: High DC 12 V ±2 V, Low 0 V. • Permissible current: 50 mA •...

  • Page 47: Setting Of External Input And Output

    9-3. Setting of external input and output • Indoor unit Input Connection point Function setting number 46 Function Operation/Stop mode 1 (R.C. enabled) (Setting prohibited) CN46 Forced stop mode Operation/Stop mode 2 (R.C. disabled) Output Connection point Function setting number 60 Function Operation/Stop 01 to 04...
  • Page 48 • External Input and Output PCB Switch setting Ex IN Ex OUT Rotary SW302 CN313 CN314 CN310 CN311 CN312 switch Edge Operation/Stop Not available Indoor unit fan Operation/Stop Error status operation Pulse Operation Stop status Indoor unit fan Forced External heater Not available Error status operation...

  • Page 49: Details Of Control Input Function

    9-4. Details of control input function ¢ Operation/Stop mode 1 • In the case of "Edge" input External Input and Output PCB Function External input Input signal Command setting Rotary SW302 switch Off → On Operation — Input of indoor unit CN46 On →...
  • Page 50 ¢ Forced stop • In the case of "Edge" input External Input and Output PCB Function External input Input signal Command setting Rotary SW302 switch Forced stop Off → On (R.C. disabled) — Input of indoor unit CN46 Normal On → Off (R.C.

  • Page 51: Operation/Stop Mode

    ¢ Operation/Stop mode 2 • In the case of “Edge” input External Input and Output PCB Function External input Input signal Command setting Rotary SW302 switch Operation Off → On (R.C. enabled) — Input of indoor unit CN46 Stop On → Off (R.C.

  • Page 52: Forced Thermostat Off

    ¢ Forced thermostat off External Input and Output External input Input signal Command Rotary switch Off → On Thermostat off External Input and 2, B, C, D CN313 Output PCB On → Off Normal operation Off → On Thermostat off External Input and 4, 7, 8, A CN313...

  • Page 53: Details Of Control Output Function

    9-5. Details of control output function ¢ Operation status External Input and Function Output PCB External output Output signal Status setting Rotary switch Off → On Operation 60-00 1, 2, 8 Output of indoor unit CN47 60-06 On → Off Stop Off →...

  • Page 54: Indoor Unit Fan Operation Status

    ¢ Indoor unit fan operation status External Input and Function Output PCB External output Output signal Status setting Rotary switch Off → On Fan run 60-10 Output of indoor unit CN47 On → Off Fan stop Off → On Fan run External Input and —...

  • Page 55: External Heater Output

    ¢ External heater output Function setting Indoor unit Control Primary heater Auxiliary heater Control switching external heaters No. 61 Auxiliary heater control 1 Heat pump External device* 61-00 Auxiliary heater control 2 Heat pump External device 61-01 Heat pump prohibition External device None 61-02...
  • Page 56 • Inappropriate designing and installation of external heater may cause a fire by emitted heat from the external heater. • Fujitsu General Ltd. is not responsible for inappropriate designing or installation of external heat- ing device. - 50 - 9-5.
  • Page 57  Auxiliary equipment control by room temperature Auxiliary equipment control is switchable by room temperature. Auxiliary equipment switching is per- formed for each room temperature divided to following 3 zones. Zone A Ts +0.9°F (0.5 °C) Ts: Setting temperature Ts -0.9°F (-0.5 °C) Tr: Room temperature Zone B Zone C...

  • Page 58: Auxiliary Heater Control

     Auxiliary heater control 1 Operation Condition Heater on Heater is on as shown in following diagram of heating temperature. • Heater is off as shown in following diagram of heating temperature. • Other than heating mode Heater off • Error occurred •...
  • Page 59  Heat pump prohibition control Perform heating by external heater only. Indoor unit is continuous thermostat off. Operation Condition Heater on Heater is on as shown in following diagram of heating temperature. • Heater is off as shown in following diagram of heating temperature. •...
  • Page 60  Auxiliary heater control by outdoor temperature 1 This control selects heat pump or external heater according to the outdoor temperature. When out- door temperature is high, the heating is performed by using heat pump only. Operation Condition Heater on Heater is on as shown in following diagram of heating temperature.
  • Page 61 • Operation status 46.4°F (8°C) 42.8°F (6°C) Outdoor temperature (Factory setting) -0.4°F (-18°C) -4°F (-20°C) Heat pump Heat pump Combination zone only zone prohibition zone Outdoor temperature zone * Comp. On/Off 12 V Heater * The outdoor temperature zone transition from one to another will stay in that zone for minimum of 30 min. NOTE: In following operations, compressor will be on in heat pump prohibition zone.
  • Page 62  Auxiliary heater control by outdoor temperature 2 This control selects heat pump or external heater according to the outdoor temperature. Even when outdoor temperature is high, the heating is performed by using both of heat pump and external heater. Operation Condition Heater on...
  • Page 63 • Operation status 46.4°F (8°C) 42.8°F (6°C) Outdoor temperature (Factory setting) -0.4°F (-18°C) -4°F (-20°C) Heat pump prohibition Combination zone zone Outdoor temperature zone * Comp. On/Off 12 V Heater * The outdoor temperature zone transition from one to another will stay in that zone for minimum of 30 min. NOTE: In following operations, compressor will be on in heat pump prohibition zone.
  • Page 64  Auxiliary heater control by outdoor temperature 3 This control selects heat pump or external heater according to the outdoor temperature. Even when outdoor temperature is high, the heating is performed by using both of heat pump and external heater. Operation Condition Heater on...
  • Page 65 NOTE: In following operations, compressor will be on in heat pump prohibition zone. • Other than heating • Test run - 59 - 9-5. Details of control output function 9. External input and output...
  • Page 66  Auxiliary heat pump control • External heater output Operation Condition Heater on Heater is on as shown in following diagram of heating temperature. • Heater is off as shown in following diagram of heating temperature. • Other than heating mode Heater off •...
  • Page 67  Auxiliary heat pump control by outdoor temperature 1 • External heater output Operation Condition Heater on Heater is on as shown in following diagram of heating temperature. • Heater is off as shown in following diagram of heating temperature. •...
  • Page 68 • Operation status 46.4°F (8°C) 42.8°F (6°C) Outdoor temperature (Factory setting) -0.4°F (-18°C) -4°F (-20°C) Heat pump prohibition Combination zone zone Outdoor temperature zone * Comp. On/Off 12 V Heater * The outdoor temperature zone transition from one to another will stay in that zone for minimum of 30 min. NOTE: In following operations, compressor will be on in heat pump prohibition zone.
  • Page 69  Auxiliary heat pump control by outdoor temperature 2 • External heater output Operation Condition Heater on Heater is on as shown in following diagram of heating temperature. • Heater is off as shown in following diagram of heating temperature. •...
  • Page 70 • Operation status Heat pump prohibition zone 46.4°F (8°C) 42.8°F (6°C) Outdoor temperature (Factory setting) -0.4°F (-18°C) -4°F (-20°C) Combination zone Outdoor temperature zone * Comp. On/Off 12 V Heater * The outdoor temperature zone transition from one to another will stay in that zone for minimum of 30 min. NOTE: In following operations, compressor will be on in heat pump prohibition zone.
  • Page 71  Auxiliary heat pump control by outdoor temperature 3 • External heater output Operation Condition Heater on Heater is on as shown in following diagram of heating temperature. • Heater is off as shown in following diagram of heating temperature. •...
  • Page 72 • Operation status Heat pump prohibition zone 46.4°F (8°C) 42.8°F (6°C) Outdoor temperature (Factory setting) -0.4°F (-18°C) -4°F (-20°C) Combination zone Outdoor temperature zone * Comp. On/Off 12 V Heater * The outdoor temperature zone transition from one to another will stay in that zone for minimum of 30 min. NOTE: In following operations, compressor will be on in heat pump prohibition zone.

  • Page 73: Heating Thermostat On For Humidifier

    ¢ Heating thermostat on for humidifier Indoor unit Function External output setting Situation Mode Rotary SW Heating Indoor unit fan Heating thermostat on operation thermostat on no. 60 status 60-05 CN47 Example of 60-06 CN312 individual Not used 60-07 CN311 connection 60-08 CN310...

  • Page 74: Group Connection

    10. Group connection NOTE: Group control cannot be used together with WLAN Adapter. Installation procedure for group control system: A number of indoor units can be operated at the same time using a single remote controller. NOTE: When different type of indoor units (such as wall-mounted type and cassette type, cassette type and duct type, or other combinations) are connected using group control system, some functions may no longer be available.

  • Page 75: Remote Controller

    11. Remote controller 11-1. Wireless remote controller ¢ Overview a MODE button b FAN SPEED button c POWERFUL button d SET button (Left/right airflow) e MIN. HEAT button f INDIVIDUAL AUTO button g OUTDOOR LOW NOISE button h ENERGY SAVING button i RESET button j TEST RUN button k WLAN button...
  • Page 76 ¢ Specifications  Controller Unit: in (mm) Top view 2-5/16 (58) 11/16 (17) Front view Side view Size (H × W × D) in (mm) 7-1/8 × 2-5/16 × 11/16 (181 × 58 × 17) Weight oz (g) 4 (116) (without batteries) ...

  • Page 77: Function Settings

    12. Function settings To adjust the functions of this product according to the installation environment, various types of function settings are available. NOTE: Incorrect settings can cause a product malfunction. 12-1. Function settings by using remote controller Some function settings can be changed on the remote controller. After confirming the setting proce- dure and the content of each function setting, select appropriate functions for your installation envi- ronment.

  • Page 78: Contents Of Function Setting

    ¢ Contents of function setting Each function setting listed in this section is adjustable in accordance with the installation environ- ment. NOTE: Setting will not be changed if invalid numbers or setting values are selected.  Function setting list Function no. Functions Filter sign 30/31...
  • Page 79 2) Room temperature control for indoor unit sensor NOTE: Before performing this setting, refer to Function 95. Depending on the installed environment, correction of the room temperature sensor may be re- quired. Select the appropriate control setting according to the installed environment. The temperature of the room temperature sensor is corrected as follows: Corrected temp.

  • Page 80: Auto Restart

    3) Room temperature control for wired remote controller sensor NOTE: Before performing this setting, refer to Function 95. Depending on the installed environment, correction of the wire remote temperature sensor may be required. Select the appropriate control setting according to the installed environment. To change this setting, set Function 42 to “Both”...
  • Page 81 6) Remote controller custom code (Only for wireless remote controller) The indoor unit custom code can be changed. Select the appropriate custom code. Function number Setting value Setting description Factory setting ♦ 7) External input control “Operation/Stop” mode or “Forced stop” mode can be selected. Function number Setting value Setting description...
  • Page 82 10) Switching functions for external output terminal Functions of the external output terminal can be switched. For details, refer to “External input and output”. Function number Setting value Setting description Factory setting Operation status ♦ 01—04 Cooling thermostat On Heating operation Operation/Stop 07—08 Cooling thermostat On...
  • Page 83 13) Outdoor temperature zone boundary temperature A Setting required if changing of the outdoor temperature setting for heat pump prohibition zone is re- quired when auxiliary heater control by outdoor temperature 1 and 2 are performed on the indoor unit. For details, refer to “External heater output”...
  • Page 84 16) Heat pump backup setting Enables or disables the heat pump backup operation. Function number Setting value Setting description Factory setting Disable ♦ Enable 17) Emergency heat for external output terminal Enables or disables emergency heat input. Function number Setting value Setting description Factory setting Disable...

  • Page 85: 12-2.Custom Code Setting For Wireless Remote Controller

    12-2. Custom code setting for wireless remote controller To interconnect the air conditioner and the wireless remote controller, assignment of the custom code for the wireless remote controller is required. NOTE: Air conditioner cannot receive a signal if the air conditioner has not been set for the custom code.

  • Page 86: Accessories

    13. Accessories 13-1. Models: ASUH09KZAS, ASUH12KZAS, and ASUH15KZAS Part name Exterior Part name Exterior Operation manual Wall hook bracket Installation manual Tapping screw (large) Remote controller Tapping screw (small) Remote controller Cloth tape holder Battery Filter holder Installation spacer Air cleaning filters - 80 - 13-1.

  • Page 87: 13-2.Models: Asuh18Kzas And Asuh24Kzas

    13-2. Models: ASUH18KZAS and ASUH24KZAS Part name Exterior Part name Exterior Operation manual Drain hose insulation Installation manual Cloth tape Self-tapping screw Wall hook bracket (large) Self-tapping screw Remote controller (small) Battery Air cleaning filters Remote controller Filter holder holder Installation spacer - 81 - 13-2.

  • Page 88: Optional Parts

    14. Optional parts 14-1. Controllers Exterior Part name Model name Summary Remote controller that provides the functions you need in a sleek design that uniquely transforms itself to blend with any interior. Optional Communication Kit is necessary for installation. NOTE: When this remote controller is connected, wireless Wired Remote remote controller cannot be...
  • Page 89 NOTES: • Available functions may differ by the remote controller. For details, refer to the operation manu- • When using the group controlling system of the Wired Remote Controller, using WLAN Adapter is prohibited. - 83 - 14-1. Controllers 14. Optional parts...
  • Page 90 For connection between indoor unit Modbus with UART interface and a Modbus UTY-VMSX Converter open network. Connecting point: CN65 on Main PCB This converter can control Fujitsu General products using a third-party thermostat controller. Optional Thermostat UTY-TTRXZ Communication Kit is necessary for Converter installation.

  • Page 91: Part 2. Outdoor Unit

    Part 2. OUTDOOR UNIT SINGLE TYPE: AOUH09KZAH1 AOUH12KZAH1 AOUH15KZAH1 AOUH18KZAH1 AOUH24KZAH1...

  • Page 92: Specifications

    1. Specifications 1-1. Models: AOUH09KZAH1, AOUH12KZAH1, and AOUH15KZAH1 Type Inverter, Heat pump Model name AOUH09KZAH1 AOUH12KZAH1 AOUH15KZAH1 Power supply 208/230 V~ 60 Hz Power supply intake Outdoor unit Available voltage range 187—253 V Starting current Cooling 1,089 (1,850) 1,171 (1,990) 1,218 (2,070) Airflow rate CFM (m...

  • Page 93: Models: Aouh18Kzah1 And Aouh24Kzah1

    1-2. Models: AOUH18KZAH1 and AOUH24KZAH1 Type Inverter, Heat pump Model name AOUH18KZAH1 AOUH24KZAH1 Power supply 208/230 V~ 60 Hz Power supply intake Outdoor unit Available voltage range 187—253 V Starting current Cooling 1,666 (2,830) 1,919 (3,260) Airflow rate CFM (m Heating 1,725 (2,930) 2,172 (3,690)

  • Page 94: Dimensions

    2. Dimensions 2-1. Models: AOUH09KZAH1, AOUH12KZAH1, and AOUH15KZAH1 Unit: in (mm) 4-M10 hole 22-13/16 (580) 4-5/16 (109) Pitch of bolts for installation Top view 3/4 (19) 31-7/16 (799) 2-11/16 (68) 1/2 (13) 11-7/16 (290) 1-5/16 (33) 1-3/16 (30) Side view Front view Side view Airflow...

  • Page 95: Models: Aouh18Kzah1 And Aouh24Kzah1

    2-2. Models: AOUH18KZAH1 and AOUH24KZAH1 Unit: in (mm) 5-13/16 25-9/16 (650) 5-5/8 (147) (143) 3-way valve (Gas) 3-way valve (Liquid) 1-1/4 (48) Liquid Top view Detail A Detail B 12-5/8 (320) 37 (940) 1-9/16 (40) 9/16 (14) 2-Ф7/8 (22) Cable port 2-Ф7/8 (22) Cable port 2-Ф1/8 (28)

  • Page 96: Installation Space

    3. Installation space 3-1. Models: AOUH09KZAH1, AOUH12KZAH1, and AOUH15KZAH1 ¢ Space requirement Provide sufficient installation space for product safety. CAUTION Keep the space shown in the installation examples. If the installation is not performed accordingly, it could cause a short circuit and result in a lack of operating performance.

  • Page 97: Multiple Outdoor Unit Installation

     Multiple outdoor unit installation • Provide at least 10 in (250 mm) of space between the outdoor units if multiple units are in- stalled. • When routing the piping from the side of an outdoor unit, provide space for piping. •...

  • Page 98: Outdoor Units Installation In Multi-Row

     Outdoor units installation in multi-row Unit: in (mm) Single parallel unit arrangement Multiple parallel unit arrangement 4 (100) or more 8 (200) or more 40 (1,000) 80 (2,000) or more or more 8 (200) or more 16 (400) or more 20 (500) or more 40 (1,000) or more 8 (200) or more...

  • Page 99: Models: Aouh18Kzah1 And Aouh24Kzah1

    3-2. Models: AOUH18KZAH1 and AOUH24KZAH1 ¢ Space requirement Provide sufficient installation space for product safety. CAUTION Keep the space shown in the installation examples. If the installation is not performed accordingly, it could cause a short circuit and result in a lack of operating performance.
  • Page 100 • When an obstruction in the upper space: Unit: in (mm) When there are obstacles at the rear When there are obstacles at the rear, sides, and and above. above. Max. 20 Max. 20 (500) (500) 40 (1,000) or more 40 (1,000) or more 20 (500)
  • Page 101  Multiple outdoor unit installation • Provide at least 250 mm of space between the outdoor units if multiple units are installed. • When routing the piping from the side of an outdoor unit, provide space for piping. • No more than 3 units must be installed side by side. When 4 units or more are arranged in a line, provide the space as shown in the following ex- ample “When an obstruction in the upper space:”.

  • Page 102: Outdoor Unit Installation In Multi-Row

     Outdoor unit installation in multi-row Unit: in (mm) Single parallel unit arrangement Multiple parallel unit arrangement 6 (150) or more 20 (500) or more 119 (3,000) or more 138 (3,500) or more 24 (600) or more 24 (600) or more 60 (1,500) or more 60 (1,500) or more NOTES:...

  • Page 103: Refrigerant Circuit

    4. Refrigerant circuit 4-1. Models: AOUH09KZAH1, AOUH12KZAH1, and AOUH15KZAH1 : Thermistor (Compressor temperature) : Thermistor (Discharge temperature) : Thermistor (Outdoor temperature) : Thermistor (Heat exchanger out temperature) : Thermistor (Pipe temperature) : Thermistor (Room temperature) - 97 - 4-1. Models: AOUH09KZAH1, AOUH12KZAH1, and AOUH15KZAH1 4.

  • Page 104: Models: Aouh18Kzah1 And Aouh24Kzah1

    4-2. Models: AOUH18KZAH1 and AOUH24KZAH1 Heat exchanger 3-way 3-way (INDOOR) valve valve Pressure switch Muffler 4-way valve Strainer Expansion valve Strainer Heat exchanger (OUTDOOR) : Cooling : Heating : Thermistor (Compressor temperature) : Thermistor (Discharge temperature) : Thermistor (Heat exchanger middle temperature) : Thermistor (Outdoor temperature) : Thermistor (Heat exchanger out temperature) : Thermistor (Pipe temperature)

  • Page 105: Wiring Diagrams

    5. Wiring diagrams 5-1. Models: AOUH09KZAH1, AOUH12KZAH1, and AOUH15KZAH1 - 99 - 5-1. Models: AOUH09KZAH1, AOUH12KZAH1, and AOUH15KZAH1 5. Wiring diagrams...

  • Page 106: Models: Aouh18Kzah1 And Aouh24Kzah1

    5-2. Models: AOUH18KZAH1 and AOUH24KZAH1 - 100 - 5-2. Models: AOUH18KZAH1 and AOUH24KZAH1 5. Wiring diagrams...

  • Page 107: Capacity Compensation Rate For Pipe Length And Height Difference

    6. Capacity compensation rate for pipe length and height difference Height difference H Indoor unit is higher than outdoor unit Indoor unit is lower than outdoor unit Outdoor unit Indoor unit Outdoor unit Indoor unit Connection pipe Connection pipe 6-1. Models: AOUH09KZAH1 and AOUH12KZAH1 NOTE: Values mentioned in the table are calculated based on the maximum capacity.

  • Page 108: Model: Aouh15Kzah1

    6-2. Model: AOUH15KZAH1 NOTE: Values mentioned in the table are calculated based on the maximum capacity. Pipe length COOLING — — — — — — 0.901 0.885 — — — — — 0.924 0.908 0.893 — — — — 0.949 0.932 0.915 0.900...

  • Page 109: Models: Aouh18Kzah1 And Aouh24Kzah1

    6-3. Models: AOUH18KZAH1 and AOUH24KZAH1 NOTE: Values mentioned in the table are calculated based on the maximum capacity. Pipe length COOLING — — — — 0.932 0.929 0.924 — — — 0.945 0.947 0.945 0.940 Indoor unit is higher than outdoor —...

  • Page 110: Model: Aouh15Kzah1

    7. Additional charge calculation 7-1. Models: AOUH09KZAH1 and AOUH12KZAH1 Refrigerant type lb oz 2 lb 9 oz Factory charge amount 1,150 ¢ Refrigerant charge 49 or less 82 (Max.) Total pipe length 0.22 oz/ft 15 or less 25 (Max.) (20 g/m) Additional charge amount 7-2.

  • Page 111: Models: Aouh18Kzah1 And Aouh24Kzah1

    7-3. Models: AOUH18KZAH1 and AOUH24KZAH1 Refrigerant type lb oz 3 lb 12 oz Factory charge amount 1,700 ¢ Refrigerant charge 66 or less (Max.) Total pipe length 20 or 0.43 oz/ft less (Max.) (40 g/m) Additional charge amount 1,000 1,200 - 105 - 7-3.

  • Page 112: Airflow

    8. Airflow 8-1. Model: AOUH09KZAH1  Cooling 1,850 1,089  Heating 1,850 1,089 8-2. Model: AOUH12KZAH1  Cooling 1,990 1,171  Heating 1,850 1,089 8-3. Model: AOUH15KZAH1  Cooling 2,070 1,218  Heating 2,290 1,348 - 106 - 8-1. Model: AOUH09KZAH1 8.

  • Page 113: Model: Aouh18Kzah1

    8-4. Model: AOUH18KZAH1  Cooling 2,830 1,666  Heating 2,930 1,725 8-5. Model: AOUH24KZAH1  Cooling 3,260 1,919  Heating 3,690 1,025 2,172 - 107 - 8-4. Model: AOUH18KZAH1 8. Airflow...

  • Page 114: Operation Noise (Sound Pressure)

    9. Operation noise (sound pressure) 9-1. Noise level curve ¢ AOUH09KZAH1  Cooling  Heating NC-65 NC-65 NC-60 NC-60 NC-55 NC-55 NC-50 NC-50 NC-45 NC-45 NC-40 NC-40 NC-35 NC-35 NC-30 NC-30 NC-25 NC-25 NC-20 NC-20 NC-15 NC-15 1,000 2,000 4,000 8,000 1,000 2,000...
  • Page 115 ¢ AOUH15KZAH1  Cooling  Heating NC-65 NC-65 NC-60 NC-60 NC-55 NC-55 NC-50 NC-50 NC-45 NC-45 NC-40 NC-40 NC-35 NC-35 NC-30 NC-30 NC-25 NC-25 NC-20 NC-20 NC-15 NC-15 1,000 2,000 4,000 8,000 1,000 2,000 4,000 8,000 Octave band center frequency, Hz Octave band center frequency, Hz ¢...
  • Page 116 ¢ AOUH24KZAH1  Cooling  Heating NC-65 NC-65 NC-60 NC-60 NC-55 NC-55 NC-50 NC-50 NC-45 NC-45 NC-40 NC-40 NC-35 NC-35 NC-30 NC-30 NC-25 NC-25 NC-20 NC-20 NC-15 NC-15 1,000 2,000 4,000 8,000 1,000 2,000 4,000 8,000 Octave band center frequency, Hz Octave band center frequency, Hz - 110 - 9-1.

  • Page 117: Sound Level Check Point

    9-2. Sound level check point Rear Microphone Microphone Airflow 40 in (1 m) Side view Rear view NOTE: Detailed shape of the actual outdoor unit might be slightly different from the one illustrated above. - 111 - 9-2. Sound level check point 9.

  • Page 118: Electrical Characteristics

    10. Electrical characteristics Model name AOUH09KZAH1 AOUH12KZAH1 AOUH15KZAH1 Voltage 208/230 Power supply Frequency 14.4 17.5 MCA* Starting current MAX. CKT. BKR* Power cable Wiring Size spec.* Connection Limited wiring cable* ft (m) 85 (26) 102 (31) length Model name AOUH18KZAH1 AOUH24KZAH1 Voltage 208/230...

  • Page 119: Safety Devices

    11. Safety devices Model Type of Protection form protection AOUH09KZAH1 AOUH12KZAH1 AOUH15KZAH1 250 V, 25 A Circuit Current fuse (Main PCB*) 250 V, 5 A protection 250 V, 3.15 A 257±18°F (125±10°C) Activate Fan motor Fan motor stop Thermal protection program protection 248±18°F (120±10°C) Reset...

  • Page 120: External Input And Output (For 18-24 Model)

    12. External input and output (for 18-24 model) With using external input and output functions, this product can be operated inter-connectedly with an external device. Connector Input Output Remarks P580 Low noise mode — PA580 Peak cut mode — See external input/output settings for details.

  • Page 121: Peak Cut Mode

    ¢ Peak cut mode By performing following on-site work, operation that suppresses the current value can be enabled: The air conditioner is set to the “Peak cut mode” when closing the contact input of a commercial timer or on/off switch to a connector on the control PCB of the outdoor unit. •...

  • Page 122: 12-2.External Output

    12-2. External output With using external output function, some status signals are transmitted to the control PCB, and the related LED lamp indicates the status of this product. ¢ Error status output Signal on air conditioner error status is generated when a malfunction occurs. •...

  • Page 123: Compressor Status Output

    ¢ Compressor status output Signal on compressor operation status is generated when the compressor is running. • Circuit diagram example • Output voltage (Vcc): DC 12 V Outdoor unit 50 mA or less control PCB Connected unit (Locally purchased) • *: Make the distance from the Example: Connector Example: Fan...

  • Page 124: Function Settings (For 18-24 Model)

    13. Function settings (for 18-24 model) Perform appropriate function setting locally according to the installation environment. NOTE: Incorrect settings can cause a product malfunction. CAUTION • Before setting up the switch buttons, discharge the static electricity from your body. • Never touch the terminals or the patterns on the parts that are mounted on the PCB. 13-1.

  • Page 125: Switch Buttons And The Functions

    ¢ Switch buttons and the functions LED lamps S134 S133 S132 S131 S130 Switch buttons LED lamp Function or operation method Lights on while power on. (1) POWER/MODE Green Blinks to show the local setting on the outdoor unit or the error code. (2) ERROR Blinks during error operation.

  • Page 126: 13-2.Local Setting Procedure

    13-2. Local setting procedure NOTE: Before performing the function setting, be sure to stop the operation of the air conditioner. ¢ Low noise mode Press the MODE switch button (S134) for 3 seconds or more to switch to “Local setting mode”. After confirming the LED lamp of POWER/MODE blinks 9 times, press the ENTER switch but- ton (S132).
  • Page 127 ¢ Peak cut mode Press the MODE switch button (S134) for 3 seconds or more to switch to “Local setting mode”. After confirming the LED lamp of POWER/MODE blinks 9 times, press the ENTER switch but- ton (S132). PUMP POWER LOW NOISE PEAK CUT DOWN...

  • Page 128: Accessories

    14. Accessories 14-1. Models: AOUH09KZAH1, AOUH12KZAH1, and AOUH15KZAH1 Part name Exterior Part name Exterior Installation manual Protection label Cable tie 14-2. Models: AOUH18KZAH1 and AOUH24KZAH1 Part name Exterior Part name Exterior Installation manual Protection label - 122 - 14-1. Models: AOUH09KZAH1, AOUH12KZAH1, and AOUH15KZAH1 14.

  • Page 129: Optional Parts

    15. Optional parts Exterior Part name Model name Summary Use to operate the external input and External UTY-XWZXZ3 output functions of outdoor unit. Connect Kit (for 18-24 model) - 123 - 15. Optional parts...

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