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AIR CONDITIONER Cassette type DESIGN & TECHNICAL MANUAL INDOOR ACUH09LUAS1 ACUH12LUAS1 ACUH18LUAS1 OUTDOOR AOUH09LUAS1 AOUH12LUAS1 AOUH18LUAS1 DR_AU038EF_02 2021.06.30...
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• 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. ®...
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...
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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).
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:...
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...
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 ±...
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¢ 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.) •...
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). •...
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¢ 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"...
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...
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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...
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¢ 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.
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...
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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 →...
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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.
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¢ 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...
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¢ 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...
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¢ 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 →...
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¢ 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...
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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.
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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...
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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 •...
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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. •...
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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.
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• 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.
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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...
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• 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.
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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...
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• 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.
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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 •...
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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. •...
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• 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.
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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. •...
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• 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.
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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. •...
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• 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.
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¢ 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...
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. ¢...
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.
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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"...
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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.
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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.
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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...
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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...
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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...
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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"...
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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.
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.
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”...
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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.
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)
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.
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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. •...
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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...
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.
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...
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...
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.
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...
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...