Fujitsu ACUH09LUAS1 Design & Technical Manual
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Fujitsu ACUH09LUAS1 Design & Technical Manual

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AIR CONDITIONER
Cassette type
DESIGN & TECHNICAL MANUAL
INDOOR
OUTDOOR
ACUH09LUAS1
ACUH12LUAS1
ACUH18LUAS1
AOUH09LUAS1
AOUH12LUAS1
AOUH18LUAS1
DR_AU038EF_02
2021.06.30

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Summary of Contents for Fujitsu ACUH09LUAS1

  • Page 1 AIR CONDITIONER Cassette type DESIGN & TECHNICAL MANUAL INDOOR ACUH09LUAS1 ACUH12LUAS1 ACUH18LUAS1 OUTDOOR AOUH09LUAS1 AOUH12LUAS1 AOUH18LUAS1 DR_AU038EF_02 2021.06.30...
  • Page 2 • 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. ®...

  • Page 3: Table Of Contents

    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.
  • Page 4 CONTENTS (continued) 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.

  • Page 5: Part 1. Indoor Unit

    Part 1. INDOOR UNIT CASSETTE TYPE: ACUH09LUAS1 ACUH12LUAS1 ACUH18LUAS1...

  • Page 6: Specifications

    1. Specifications Cassette Type Inverter heat pump Model name ACUH09LUAS1 ACUH12LUAS1 ACUH18LUAS1 Power supply 208/230 V ~ 60 Hz Available voltage range 187—253 V 2.64 3.52 5.02 Rated Btu/h 9,000 12,000 17,100 Cooling Cooling 0.90—3.20 0.90—4.00 0.90—5.90 Min.—Max. Btu/h 3,100—11,000 3,100—13,600...
  • Page 7 Cassette Type 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).

  • Page 8: Dimensions

    (285) (102) (135) (250) 3-7/8 (99) Ceiling Control Box View B View C 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...

  • Page 9: Installation Space Requirement

    2-2. Installation space requirement Unit: in (mm) Strong and durable ceiling 11 (262) or more 40 (1,000) 40 (1,000) or more or more 99 (2,500) or more Obstruction Floor Maximum height from floor to ceiling [Unit: in (mm)] Standard 107 (2,700) High ceiling 119 (3,000) 3-way direction setting:...

  • Page 10: Wiring Diagram

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

  • Page 11: Capacity Table

    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) 4-1. Cooling capacity ¢ Model: ACUH09LUAS1 Indoor temperature °FDB °FWB °FDB...
  • Page 12 ¢ Model: ACUH12LUAS1 Indoor temperature °FDB °FWB °FDB kBtu kBtu kBtu kBtu kBtu kBtu 10.36 8.83 0.33 11.54 8.88 0.33 11.93 9.66 0.33 13.11 10.46 0.34 13.90 10.42 0.34 14.68 11.10 0.34 10.28 8.74 0.38 11.45 8.80 0.38 11.84 9.56 0.39 13.01 10.36...

  • Page 13: Heating Capacity

    4-2. Heating capacity NOTE: Values mentioned in the table are calculated based on the maximum capacity. ¢ Model: ACUH09LUAS1 Indoor temperature °FDB °FDB °FWB kBtu/h kBtu/h kBtu/h kBtu/h 8.96 1.18 8.74 1.21 8.53 1.23 8.10 1.28 10.63 1.28 10.37 1.30 10.12...
  • Page 14 ¢ Model: ACUH18LUAS1 Indoor temperature °FDB °FDB °FWB kBtu/h kBtu/h kBtu/h kBtu/h 15.75 2.02 15.38 2.06 15.00 2.10 14.25 2.18 18.38 2.11 17.94 2.16 17.50 2.20 16.63 2.29 19.95 2.36 19.48 2.41 19.00 2.46 18.05 2.56 21.68 2.60 21.16 2.66 20.10 2.71 19.61...

  • Page 15: Fan Performance

    5. Fan performance 5-1. Air velocity distributions ¢ Model: ACUH09LUAS1 (4-way air outlet) Fan speed Operation mode Ceiling mode Measuring conditions HIGH STANDARD Unit: ft/s (m/s) (ft) 1 (0.25) 2 (0.5) 3 (1.0) 7 (2.0) Top view Vertical airflow direction louver: Upward 1 (0.25)
  • Page 16 ¢ Model: ACUH09LUAS1 (3-way air outlet) Fan speed Operation mode Ceiling mode Measuring conditions HIGH STANDARD Unit: ft/s (m/s) (ft) 1 (0.25) 2 (0.5) 3 (1.0) Top view Vertical airflow direction louver: Upward 7 (2.0) 1 (0.25) 2 (0.5) 3 (1.0) 7 (2.0)
  • Page 17 ¢ Model: ACUH12LUAS1 (4-way air outlet) Fan speed Operation mode Ceiling mode Measuring conditions HIGH STANDARD (ft) Unit: ft/s (m/s) 1 (0.25) 2 (0.5) 3 (1.0) 7 (2.0) 7 (2.0) 3 (1.0) 2 (0.5) 2 (0.5) Top view Vertical airflow direction louver: Upward 1 (0.25) 7 (2.0) 1 (0.25)
  • Page 18 ¢ Model: ACUH12LUAS1 (3-way air outlet) Fan speed Operation mode Ceiling mode Measuring conditions HIGH STANDARD (ft) Unit: ft/s (m/s) 1 (0.25) 2 (0.5) Top view Vertical airflow direction louver: Upward 3 (1.0) 3 (1.0) 7 (2.0) 1 (0.25) 2 (0.5) 2 (0.5) 1 (0.25) 7 (2.0)
  • Page 19 ¢ Model: ACUH18LUAS1 (4-way air outlet) Fan speed Operation mode Ceiling mode Measuring conditions HIGH STANDARD Unit: ft/s (m/s) (ft) 1 (0.25) 2 (0.5) 3 (1.0) 7 (2.0) 7 (2.0) 2 (0.5) 3 (1.0) 3 (1.0) 2 (0.5) Top view Vertical airflow direction louver: Upward 1 (0.25) 1 (0.25)
  • Page 20 ¢ Model: ACUH18LUAS1 (3-way air outlet) Fan speed Operation mode Ceiling mode Measuring conditions HIGH STANDARD (ft) Unit: ft/s (m/s) 1 (0.25) 2 (0.5) 3 (1.0) Top view Vertical airflow direction louver: Upward 7 (2.0) 1 (0.25) 2 (0.5) 2 (0.5) 1 (0.25) 3 (1.0) 7 (2.0)

  • Page 21: Airflow

    Conversion factor: • 1 m /h = 0.2778 l/s = 0.5886 CFM • 3.6 m /h = 1 l/s • 1.699 m /h = 1 CFM ¢ Model: ACUH09LUAS1  Cooling Fan speed Airflow HIGH QUIET  Heating Fan speed...
  • Page 22 ¢ Model: ACUH12LUAS1  Cooling Fan speed Airflow HIGH QUIET  Heating Fan speed Airflow HIGH QUIET - 18 - 5-2. Airflow 5. Fan performance...
  • Page 23 ¢ Model: ACUH18LUAS1  Cooling Fan speed Airflow HIGH QUIET  Heating Fan speed Airflow HIGH QUIET - 19 - 5-2. Airflow 5. Fan performance...

  • Page 24: Operation Noise (Sound Pressure)

    6. Operation noise (sound pressure) 6-1. Noise level curve ¢ Model: ACUH09LUAS1  Cooling  Heating NC-65 NC-65 NC-60 NC-60 NC-55 NC-55 NC-50 NC-50 NC-45 NC-45 HIGH HIGH NC-40 NC-40 NC-35 NC-35 NC-30 NC-30 NC-25 NC-25 QUIET QUIET NC-20 NC-20...
  • Page 25 ¢ Model: ACUH18LUAS1  Cooling  Heating NC-65 NC-65 NC-60 NC-60 NC-55 NC-55 NC-50 NC-50 HIGH HIGH NC-45 NC-45 NC-40 NC-40 NC-35 NC-35 NC-30 NC-30 QUIET NC-25 NC-25 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 26: Sound Level Check Point

    6-2. Sound level check point Microphone 60 in (1.5 m) Microphone - 22 - 6-2. Sound level check point 6. Operation noise (sound pressure)

  • Page 27: Safety Devices

    7. Safety devices Model Type of protection Protection form Models: ACUH09LUAS1, ACUH12LUAS1, and ACUH18LUAS1 Circuit protection Current fuse (PCB*) 250 V, 5 A Activate: 212 ± 27 °F (100 ± 15 °C) Activate Fan motor stop Fan motor protection Thermal protection program Reset: 203 ±...

  • Page 28: External Input And Output

    8. External input and output Indoor unit PCB Rotary switch CN65 External input and output PCB CN47 (Ext. out) Terminal (Ext. in) External Input connect kit External input External output Connector Input select signal (Optional parts) Operation/Stop — Terminal Dry contact Edge —...
  • Page 29 ¢ External input and output PCB The indoor unit Operation/Stop can be set by using the input terminal on the PCB.  Input select Use either one of these types of terminals according to the application. (Both types of terminals cannot be used simultaneously.) •...

  • Page 30: External Output

    8-2. External output Use an external output cable with appropriate external dimension, depending on the number of ca- bles to be installed. • A twisted pair cable (22AWG) should be used. Maximum length of cable is 82 ft (25 m). •...
  • Page 31 ¢ External input and output PCB • A twisted pair cable (22AWG) should be used. • Permissible voltage and current: DC 5 V to 30 V / 3 A, AC 30 V to 250 V / 3 A • For details, refer to Chapter 8-3. "Combination of external input and output"...

  • Page 32: Combination Of External Input And Output

    8-3. Combination of external input and output By combining the function setting of the indoor unit and rotary switch setting of the External input and output PCB, you can select various combinations of functions. Combination examples of external input and output are as follows: External input External input Function...
  • Page 33 External output External input Function and output Indoor unit Mode External input and output PCB setting PCB (Rotary Output CN47 Output 1 Output 2 Output 3 Indoor unit fan 60-00 Operation/Stop Operation/Stop Error status operation status Indoor unit fan External heater 60-00 Operation/Stop Error status...
  • Page 34 ¢ 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 (SW2) on the External input and output PCB.

  • Page 35: Details Of Function

    8-4. Details of function ¢ Control input function  When function setting is "Operation/Stop" mode 1 • In the case of "Edge" input Rotary SW of Function External input and External input Input signal Command setting / output PCB Off → On Operation Input of indoor unit Terminal...
  • Page 36  When function setting is "Forced stop" mode • In the case of "Edge" input Rotary SW of Function External input and External input Input signal Command setting / output PCB Off → On Forced stop Input of indoor unit Terminal On →...
  • Page 37  When function setting is "Operation/Stop" mode 2 • In the case of "Edge" input Rotary SW of Function External input and External input Input signal Command setting / output PCB Off → On Operation Input of indoor unit Terminal Stop (R.C.
  • Page 38 ¢ Forced thermostat off function Function Rotary SW of External External input Input signal Command setting / input and output PCB 60-00 / 2 60-02 / 4 60-05 / 7 Off → On Thermostat off 60-06 / 8 External input and output Input 1 60-08 / A 60-09 / B...
  • Page 39 ¢ Error status Function Rotary SW of External External output Output signal Command setting / input and output PCB Low → High Error 60-09 / B Output of indoor unit CN47 High → Low Normal 60-00 / 2 Off → On Error 60-01 / 3 60-02 / 4...
  • Page 40 ¢ Indoor unit fan operation status Function Rotary SW of External External output Output signal Command setting / input and output PCB Low → High Fan run 60-10 / C Output of indoor unit CN47 High → Low Fan stop 60-00 / 2 Off →...
  • Page 41 ¢ External heater output Function setting Indoor unit Control Primary heater Auxiliary heater Control switching external heaters No. 61 Auxiliary heater control 1 Heat pump 61-00 External device* Auxiliary heater control 2 Heat pump External device 61-01 Heat pump prohibition External device None 61-02...
  • Page 42 Return air • 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. - 38 - 8-4.
  • Page 43  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 44  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 45  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 46  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 47 • 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 prohibition only zone Outdoor temperature zone * 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 48  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 49 • 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 Combination zone Outdoor temperature zone * prohibition 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 50  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 51 • Operation status Heat pump only 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 52  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 53  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 54 • 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 Combination zone Outdoor temperature zone * prohibition 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 55  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 56 • 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 57  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 58 • 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 59 ¢ 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 Output3 individual Not used 60-07 Output2 connection 60-08 Output1...

  • Page 60: Function Settings

    9. 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. 9-1. Function settings on indoor unit By using some components on the PCB, you can change the function settings. ¢...

  • Page 61: Function Settings By Using Remote Controller

    9-2. 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. ¢ Setting procedure by using remote controller Remote controller is not attached for this product.
  • Page 62 2) Ceiling height (For Compact cassette type only) Select the appropriate ceiling height according to the place of installation. Function number Setting value Setting description Factory setting Standard ♦ High ceiling For the specific height for each setting value, refer to “Installation space” in Chapter 2. "Dimensions"...
  • Page 63 4) Room temperature control for indoor unit sensor 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 64 5) Room temperature control for wired remote controller sensor 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“ (01). Ensure that the Thermo Sensor icon is displayed on the remote controller screen.
  • Page 65 8) 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 ♦ 9) External input control "Operation/Stop" mode or "Forced stop" mode can be selected. Function number Setting value Setting description...
  • Page 66 12) 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 67 14) Operating temperature switching of external heaters Sets the temperature conditions when the external heater is ON. For details, refer to “External heater output” in Chapter 8-4. "Details of function" on page 31. Setting description Setting value of function 61: Function Setting Factory...
  • Page 68 16) Outdoor temperature zone boundary temperature B Setting required if changing of the outdoor temperature setting for heat pump only zone is required when auxiliary heater control by outdoor temperature 1 is performed on the indoor unit. For details, refer to “External heater output” in Chapter 8-4. "Details of function"...
  • Page 69 20) External heater use in defrosting Enables or disables external heater use in defrosting. NOTE: Inappropriate heater selection may cause cold air in defrosting. Function number Setting value Setting description Factory setting Disable ♦ Enable - 65 - 9-2. Function settings by using remote controller 9.

  • Page 70: Accessories

    Template (Carton top) (large) Special nut A Coupler heat insulation (large flange) (small) Special nut B Cable tie (small flange) (for electrical wiring) Drain hose (Ø3/4 in [I.D.], Ø1-1/16 in [O.D.]) - 66 - 10-1. Models: ACUH09LUAS1, ACUH12LUAS1, and ACUH18LUAS1 10. Accessories...

  • Page 71: Optional Parts

    11. Optional parts 11-1. Controllers Exterior Part name Model name Summary Easy finger touch operation with LCD Office Fri 10:00AM Mode Set Temp. Wired remote panel. Backlit LCD enables easy Cool 80°F Custom Auto Auto Heat 74°F UTY-RNRUZ* Cool 84°F Room Temp.

  • Page 72: 11-3.Others

    11-3. Others Exterior Part name Model name Summary Use to connect with various peripheral External devices and air conditioner PCB. UTY-XWZXZG connect kit For control output port. Air outlet shutter Installed at the air outlet when 3- UTR-YDZB plate directions mode is performed. By attaching Fresh-air intake kit to the indoor unit, it can be taken in fresh air of up to 10% of “high”...
  • Page 73 Exterior Part name Model name Summary This converter can control Fujitsu Thermostat UTY-TTRX General products using a third-party converter thermostat controller. Air conditioner switching can be External switch UTY-TERX controlled by connecting other external controller sensor switches. - 69 - 11-3.
  • Page 74 - 70 - 11-3. Others 11. Optional parts...

  • Page 75: Part 2. Outdoor Unit

    Part 2. OUTDOOR UNIT SINGLE TYPE: AOUH09LUAS1 AOUH12LUAS1 AOUH18LUAS1...

  • Page 76: Specifications

    1. Specifications Type Inverter heat pump Model name AOUH09LUAS1 AOUH12LUAS1 AOUH18LUAS1 Power supply 208/230 V ~ 60 Hz Power supply intake Outdoor unit Available voltage range 187—253 V Starting current Cooling 1,171 (1,990) 1,395 (2,370) Airflow rate 906 (1,540) CFM (m Heating 1,089 (1,850) 1,460 (2,480)

  • Page 77: Dimensions

    2. Dimensions 2-1. Models: AOUH09LUAS1 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 Hole Hole...

  • Page 78: Models: Aouh12Luas1 And Aouh18Luas1

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

  • Page 79: Installation Space

    3. Installation space 3-1. Models: AOUH09LUAS1, AOUH12LUAS1, and AOUH18LUAS1 ¢ 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 80  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 81  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 82: Refrigerant Circuit

    4. Refrigerant circuit 4-1. Models: AOUH09LUAS1 Heat exchanger 3-way (INDOOR) valve 2-way Muffler valve Muffler 4-way valve Strainer Expansion valve Heat exchanger Strainer (OUTDOOR) Cooling Heating : Thermistor (Discharge temperature) : Thermistor (Outdoor temperature) : Thermistor (Heat exchanger out temperature) : Thermistor (Heat exchanger middle temperature) : Thermistor (Room temperature) : Thermistor (Pipe temperature)

  • Page 83: Models: Aouh12Luas1 And Aouh18Luas1

    4-2. Models: AOUH12LUAS1 and AOUH18LUAS1 Heat exchanger 3-way (INDOOR) valve 2-way Muffler valve Muffler 4-way valve Strainer Expansion valve Accumulator Heat exchanger Strainer (OUTDOOR) Cooling Heating : Thermistor (Compressor temperature) : Thermistor (Discharge temperature) : Thermistor (Outdoor temperature) : Thermistor (Heat exchanger middle temperature) : Thermistor (Heat exchanger out temperature) : Thermistor (Room temperature) : Thermistor (Pipe temperature)

  • Page 84: Wiring Diagrams

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

  • Page 85: Models: Aouh12Luas1 And Aouh18Luas1

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

  • Page 86: 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. Model: AOUH09LUAS1 NOTE: Values mentioned in the table are calculated based on the maximum capacity.

  • Page 87: Model: Aouh12Luas1

    6-2. Model: AOUH12LUAS1 NOTE: Values mentioned in the table are calculated based on the maximum capacity. Pipe length COOLING 0.877 0.874 0.956 0.891 0.888 Indoor unit is higher than outdoor unit *1 0.988 0.960 0.895 0.892 1.017 0.992 0.964 0.899 0.895 1.025 1.000...

  • Page 88: Model: Aouh18Luas1

    6-3. Model: AOUH18LUAS1 NOTE: Values mentioned in the table are calculated based on the maximum capacity. Pipe length COOLING 0.951 0.950 0.947 0.941 Indoor unit is 0.979 0.967 0.966 0.962 0.956 higher than outdoor unit 0.988 0.983 0.971 0.970 0.966 0.960 0.994 0.992...

  • Page 89: Additional Charge Calculation

    7. Additional charge calculation 7-1. Model: AOUH09LUAS1 Refrigerant type R410A lb oz 2lbs.3oz. Refrigerant amount 1,000 ¢ Refrigerant charge 49 or less 66 (Max.) Total pipe length 0.2 oz/ft 15 or less 20 (Max.) (20 g/m) Additional charge 7-2. Model: AOUH12LUAS1 Refrigerant type R410A lb oz...

  • Page 90: Airflow

    8. Airflow 8-1. Model: AOUH09LUAS1  Cooling Airflow 1,540  Heating Airflow 1,540 8-2. Model: AOUH12LUAS1  Cooling Airflow 1,990 1,171  Heating Airflow 1,850 1,089 - 86 - 8-1. Model: AOUH09LUAS1 8. Airflow...

  • Page 91: Model: Aouh18Luas1

    8-3. Model: AOUH18LUAS1  Cooling Airflow 2,370 1,395  Heating Airflow 2,480 1,460 - 87 - 8-3. Model: AOUH18LUAS1 8. Airflow...

  • Page 92: Operation Noise (Sound Pressure)

    9. Operation noise (sound pressure) 9-1. Noise level curve ¢ Model: AOUH09LUAS1  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...

  • Page 93: Sound Level Check Point

    ¢ Model: AOUH18LUAS1  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 9-2.

  • Page 94: Electrical Characteristics

    10. Electrical characteristics Model name AOUH09LUAS1 AOUH12LUAS1 AOUH18LUAS1 Voltage 208/230~ Power supply Frequency MCA *1 11.3 14.8 Starting current MAX. CKT. BKR *3 Power cable Wiring Size spec. *2 Connection Limited cable *4 ft (m) 69 (21) wiring length *1: Minimum Circuit Ampacity (Calculation based on UL60335-2-40) *2: Selected sample based on Japan Electrotechnical Standards and Codes Committee E0005.

  • Page 95: Safety Devices

    11. Safety devices Model Type of Protection form protection AOUH09LUAS1 250 V, 15 A Circuit Current fuse (Main PCB) 250 V, 5 A protection 250 V, 3.15 A 217.4±32.4 °F (103±18°C) Activate Fan motor Fan motor stop Thermal protection program protection 203±32.4 °F or less (95±18 °C or less) Reset...

  • Page 96: Accessories

    12. Accessories 12-1. Models: AOUH09LUAS1, AOUH12LUAS1, and AOUH18LUAS1 Part name Exterior Q’ty Part name Exterior Q’ty Installation manual Cable tie Drain pipe Drain cap - 92 - 12-1. Models: AOUH09LUAS1, AOUH12LUAS1, and AOUH18LUAS1 12. Accessories...

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