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Fujitsu AUU18RGLX Design & Technical Manual

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AIR CONDITIONER
Cassette type
DESIGN & TECHNICAL MANUAL
INDOOR
OUTDOOR
AUU18RGLX
AUU24RGLX
AUU30RGLX
AUU36RGLX
AOU18RGLX
AOU24RGLX
AOU30RGLX
AOU36RGLX
DR_AU016EF_05
2022.12.14

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Summary of Contents for Fujitsu AUU18RGLX

  • Page 1 AIR CONDITIONER Cassette type DESIGN & TECHNICAL MANUAL INDOOR AUU18RGLX AUU24RGLX AUU30RGLX AUU36RGLX OUTDOOR AOU18RGLX AOU24RGLX AOU30RGLX AOU36RGLX DR_AU016EF_05 2022.12.14...
  • Page 2 Notices: • Product specifications and design are subject to change without notice for future improvement. • For further details, please check with our authorized dealer. Copyright © 2018, 2022 Fujitsu General Limited. All rights reserved.

  • Page 3: Table Of Contents

    2-1. Models: AUU18RGLX and AUU24RGLX.................6 2-2. Models: AUU30RGLX and AUU36RGLX.................7 2-3. Installation space requirement ..................8 3. Wiring diagram ....................11 3-1. Models: AUU18RGLX, AUU24RGLX, AUU30RGLX, and AUU36RGLX .......11 4. Capacity table....................12 4-1. Cooling capacity......................12 4-2. Heating capacity ......................16 5. Fan performance ..................18 5-1.
  • Page 4 CONTENTS (continued) Part 2. OUTDOOR UNIT..............71 1. Specifications....................72 2. Dimensions....................73 2-1. Models: AOU18RGLX, AOU24RGLX, AOU30RGLX, and AOU36RGLX.......73 3. Installation space ..................74 3-1. Models: AOU18RGLX, AOU24RGLX, AOU30RGLX, and AOU36RGLX.......74 4. Refrigerant circuit ..................78 4-1. Models: AOU18RGLX, AOU24RGLX, AOU30RGLX, and AOU36RGLX.......78 5. Wiring diagrams ..................79 5-1.

  • Page 5: Part 1. Indoor Unit

    Part 1. INDOOR UNIT CASSETTE TYPE: AUU18RGLX AUU24RGLX AUU30RGLX AUU36RGLX...

  • Page 6: Specifications

    1. Specifications Cassette Type Inverter, Heat pump Model name AUU18RGLX AUU24RGLX Power supply 208/230 V~ 60 Hz Power supply intake Outdoor unit Available voltage range 187—253 V 5.28 7.03 Rated Btu/h 18,000 24,000 Cooling 1.58—6.30 1.58—8.50 Min.—Max. Btu/h 5,400—21,500 5,400—29,000 6.15...
  • Page 7 Cassette Type Inverter, Heat pump Model name AUU18RGLX AUU24RGLX Material UTG-GCGF: White Approximate color of Munsell N 9.25/ Color UTG-LCGVCB: Black Cassette grille Approximate color of Munsell N 2 (Option) 2-1/16 × 37-3/8 × 37-3/8 (53 × 950 × 950)
  • Page 8 Cassette Type Inverter, Heat pump Model name AUU30RGLX AUU36RGLX Power supply 208/230 V~ 60 Hz Power supply intake Outdoor unit Available voltage range 187—253 V 8.79 10.55 Rated Btu/h 30,000 36,000 Cooling 2.81—10.26 2.81—11.43 Min.—Max. Btu/h 9,600—35,000 9,600—39,000 9.38 10.55 Rated 47 °FDB Btu/h...
  • Page 9 Cassette Type Inverter, Heat pump Model name AUU30RGLX AUU36RGLX 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°CWB), and outdoor temperature of 47°FDB (8.33°CDB)/43°FWB (6.11°CWB). –...

  • Page 10: Dimensions

    2. Dimensions 2-1. Models: AUU18RGLX and AUU24RGLX Unit: in (mm) 31-5/16 (796) Hanging bolt position 37-3/8 (950) 13-7/16 (342) Drain hose View A 13-7/16 (342) 11-9/16 1-3/4 (293) (45) 1-9/16 (40) 5-8/16 Ceiling Wire hole (140) 3-15/16 (100) 3-15/16 (100)

  • Page 11: Models: Auu30Rglx And Auu36Rglx

    2-2. Models: AUU30RGLX and AUU36RGLX 31-5/16 (796) Hanging bolt position 37-3/8 (950) 13-7/16 (342) Drain hose View A 13-7/16 (342) 11-9/16 1-3/4 1-9/16 (40) (293) (45) 5-8/16 (140) Ceiling Wire hole 9-5/16 3-15/16 (100) 3-15/16 (100) (237) 3-1/4 (83) 3-1/4 (83) Fresh air inlet (cut out) 1-9/16 1-9/16...

  • Page 12: Installation Space Requirement

    2-3. Installation space requirement Provide sufficient installation space for product safety. • For 4-direction setting: – Models: AUU18RGLX and AUU24RGLX Unit: in (mm) Strong and durable ceiling 11 (256) or more 60 (1,500) 119 (3,000) or more or more Ceiling height Ceiling mode* “Low”...
  • Page 13 • For 3-direction setting: Unit: in (mm) 4 (100) or more* NOTES: • To set “3-direction”, optional Air Outlet Shutter Plate (UTR-YDZK) must be installed, and the “outlet-direction” need to be switched to “3-way” by remote controller. *: When installing the indoor unit, be careful about the maintenance space. •...
  • Page 14 • Human sensor (Option) NOTE: A separate device capable of controlling the human sensor (energy saving) function, such as the Touch Panel Controller, is required for use. Top view Drain Refrigerant pipe pipe Human sensor Example of sensitivity range: 125 (3,200) 346 (8,800) 31 (800) Ceiling height...

  • Page 15: Wiring Diagram

    3. Wiring diagram 3-1. Models: AUU18RGLX, AUU24RGLX, AUU30RGLX, and AUU36RGLX - 11 - 3-1. Models: AUU18RGLX, AUU24RGLX, AUU30RGLX, and AUU36RGLX 3. Wiring diagram...

  • Page 16: 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: AUU18RGLX Indoor temperature °FDB °FWB °FDB...
  • Page 17 ¢ Model: AUU24RGLX Indoor temperature °FDB °FWB °FDB kBtu kBtu kBtu kBtu kBtu kBtu 20.45 15.81 0.33 22.78 15.89 0.33 24.32 17.31 0.33 25.87 18.72 0.34 27.42 18.66 0.34 28.98 19.86 0.34 19.99 15.64 0.58 22.26 15.72 0.59 23.78 17.12 0.60 25.29 18.52...
  • Page 18 ¢ Model: AUU30RGLX Indoor temperature °FDB °FWB °FDB kBtu kBtu kBtu kBtu kBtu kBtu 26.62 21.14 0.43 29.66 21.27 0.43 31.69 23.17 0.43 33.71 25.06 0.42 35.74 24.97 0.42 37.74 26.57 0.43 26.01 20.87 0.89 28.98 21.00 0.90 30.96 22.87 0.90 32.94 24.74...
  • Page 19 ¢ Model: AUU36RGLX 1,118 Indoor temperature °FDB °FWB °FDB kBtu kBtu kBtu kBtu kBtu kBtu 30.68 25.32 0.59 34.16 25.46 0.60 36.48 27.73 0.60 38.80 29.99 0.61 41.13 29.89 0.61 43.46 31.81 0.62 29.99 25.05 1.11 33.40 25.19 1.13 35.66 27.43 1.14 37.93...

  • Page 20: Heating Capacity

    4-2. Heating capacity NOTE: Values mentioned in the table are calculated based on the maximum capacity. ¢ Model: AUU18RGLX Indoor temperature °FDB °FDB °FWB kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h 16.54 2.19 16.15 2.24 15.75 2.28 15.37 2.33 14.98 2.37 19.06 2.21...
  • Page 21 ¢ Model: AUU30RGLX Indoor temperature °FDB °FDB °FWB kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h 25.20 3.15 24.60 3.22 23.99 3.28 23.42 3.35 22.81 3.41 29.04 3.18 28.34 3.24 27.65 3.31 26.99 3.37 26.29 3.44 30.61 3.19 29.88 3.25 29.15 3.32 28.41 3.38 27.68 3.45...

  • Page 22: Fan Performance

    5. Fan performance 5-1. Air velocity distributions ¢ Model: AUU18RGLX (4-way air outlet) Fan speed Operation mode Measuring conditions HIGH (ft) 7 (2) Unit: ft/s (m/s) 2 (0.5) 7 (2) 7 (2) 2 (0.5) 2 (0.5) 3 (1) 3 (1) (0.25)
  • Page 23 ¢ Model: AUU24RGLX (4-way air outlet) Fan speed Operation mode Measuring conditions HIGH (ft) 7 (2) Unit: ft/s (m/s) 2 (0.5) 7 (2) 7 (2) (0.25) 2 (0.5) 2 (0.5) 3 (1) 3 (1) Top view Horizontal louver: position 1 (0.25) 7 (2) 2 (0.5)
  • Page 24 ¢ Model: AUU30RGLX (4-way air outlet) Fan speed Operation mode Measuring conditions HIGH (ft) 7 (2) Unit: ft/s (m/s) (0.5) 7 (2) 7 (2) 2 (0.5) 2 (0.5) 3 (1) 3 (1) (0.25) Top view Horizontal louver: position 1 (0.25) 7 (2) 2 (0.5) (ft)
  • Page 25 ¢ Model: AUU36RGLX (4-way air outlet) Fan speed Operation mode Measuring conditions HIGH (ft) Unit: ft/s (m/s) (0.5) 7 (2) 7 (2) 7 (2) 3 (1) (0.25) 2 (0.5) 3 (1) 2 (0.5) (0.25) Top view Horizontal louver: position 1 7 (2) 2 (0.5) (ft)
  • Page 26 ¢ Model: AUU18RGLX (3-way air outlet) Fan speed Operation mode Measuring conditions HIGH Unit: ft/s (m/s) 7 (2) (ft) (0.5) 7 (2) 7 (2) (0.25) 2 (0.5) 3 (1) 3 (1) 2 (0.5) (0.25) Top view Horizontal louver: position 1...
  • Page 27 ¢ Model: AUU24RGLX (3-way air outlet) Fan speed Operation mode Measuring conditions HIGH 7 (2) Unit: ft/s (m/s) (ft) (0.5) 7 (2) 7 (2) (0.25) 2 (0.5) 3 (1) 3 (1) 2 (0.5) (0.25) Top view Horizontal louver: position 1 (ft) (ft) Unit: ft/s (m/s)
  • Page 28 ¢ Model: AUU30RGLX (3-way air outlet) Fan speed Operation mode Measuring conditions HIGH 7 (2) (ft) Unit: ft/s (m/s) (0.5) Top view (0.25) 2 (0.5) 3 (1) 7 (2) 7 (2) 3 (1) 2 (0.5) (0.25) Horizontal louver: position 1 (ft) (ft) Unit: ft/s (m/s)
  • Page 29 ¢ Model: AUU36RGLX (3-way air outlet) Fan speed Operation mode Measuring conditions HIGH 7 (2) Unit: ft/s (m/s) (ft) (0.5) (0.25) (0.25) Top view 2 (0.5) 3 (1) 7 (2) 7 (2) 3 (1) 2 (0.5) Horizontal louver: position 1 (ft) (ft) Unit: ft/s (m/s)

  • Page 30: Airflow

    5-2. Airflow ¢ Model: AUU18RGLX (4-way outlet)  Cooling/Heating Fan speed Airflow 1,050 HIGH QUIET ¢ Model: AUU24RGLX (4-way outlet)  Cooling/Heating Fan speed Airflow 1,150 HIGH 1,050 QUIET - 26 - 5-2. Airflow 5. Fan performance...
  • Page 31 ¢ Model: AUU30RGLX (4-way outlet)  Cooling/Heating Fan speed Airflow 1,600 HIGH 1,400 1,270 1,150 QUIET ¢ Model: AUU36RGLX (4-way outlet)  Cooling/Heating Fan speed Airflow 1,900 HIGH 1,118 1,590 1,420 1,180 QUIET - 27 - 5-2. Airflow 5. Fan performance...
  • Page 32 ¢ Model: AUU18RGLX (3-way outlet)  Cooling/Heating Fan speed Airflow HIGH QUIET ¢ Model: AUU24RGLX (3-way outlet)  Cooling/Heating Fan speed Airflow 1,000 HIGH QUIET ¢ Model: AUU30RGLX (3-way outlet)  Cooling/Heating Fan speed Airflow 1,390 HIGH 1,220 1,100 1,000...
  • Page 33 ¢ Model: AUU36RGLX (3-way outlet)  Cooling/Heating Fan speed Airflow 1,660 HIGH 1,390 1,240 1,030 QUIET - 29 - 5-2. Airflow 5. Fan performance...

  • Page 34: Fresh Air Characteristics

    5-3. Fresh air characteristics ¢ Models: AUU18RGLX, AUU24RGLX, AUU30RGLX, and AUU36RGLX 0.48 (120) 0.40 (100) Duct 0.32 (80) Inside diameter: ø 3-3/4 in (95 mm) 0.24 (60) Duct fan 0.16 (40) Static pressure required 0.08 (20) to take in fresh-air...
  • Page 35 ¢ Air-outlet duct connection  Precautions • Connect the air-outlet duct to maximum 2 directions among the 4-duct connecting directions. CAUTION Do not connect ducts at 3 or more directions. • When installing air-outlet duct in 2 directions, connect the ducts in a straight line. Air-outlet duct Close Close...
  • Page 36  Model: AUU18RGLX 0.40 (100) 0.32 (80) 0.24 (60) L= 3ft 3-3/8in (1m) L= 16ft 4-27/32in 0.16 (40) Fan Speed (5 m) Quiet 1-way L= 32ft 9-11/16in Fan Speed Fan Speed Fan Speed (10m) High 1-way 0.08 (20) Quiet 2-way...
  • Page 37  Model: AUU36RGLX 0.40 (100) 0.32 (80) Fan Speed High 1-way 0.24 (60) L= 3ft 3-3/8in (1m) Fan Speed High 2-way L= 16ft 4-27/32in 0.16 (40) (5 m) Fan Speed L= 32ft 9-11/16in Quiet 1-way (10m) 0.08 (20) Fan Speed Quiet 2-way (71) (141)

  • Page 38: Operation Noise (Sound Pressure)

    6. Operation noise (sound pressure) 6-1. Noise level curve ¢ Model: AUU18RGLX  Cooling  Heating NC-65 NC-65 NC-60 NC-60 NC-55 NC-55 NC-50 NC-50 NC-45 NC-45 High NC-40 NC-40 High NC-35 NC-35 NC-30 NC-30 Quiet NC-25 NC-25 Quiet NC-20 NC-20...
  • Page 39 ¢ Model: AUU30RGLX  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 Quiet 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 40: Sound Level Check Point

    6-2. Sound level check point Microphone 60 in (1.5 m) Microphone NOTE: Detailed shape of the actual indoor unit might be slightly different from the one illustrated above. - 36 - 6-2. Sound level check point 6. Operation noise (sound pressure)

  • Page 41: Safety Devices

    7. Safety devices Model AUU18RGLX Type of protection Protection form AUU24RGLX AUU30RGLX AUU36RGLX Circuit protection Current fuse (PCB*) 250 V, 3.15 A 257 ±18°F (125 ±10°C) Activate Fan motor stop Fan motor Thermal protection protection program 248 ±18°F (120 ±10°C)

  • Page 42: External Input And Output

    8. External input and output Rotary switch CN65 CN47 (Ext.in/out PCB) (Ext.out) Terminal (Ext.in) Fig. Indoor unit PCB Fig. External input and output PCB External Input connect kit External input External output Connector Input select signal (Optional parts) Operation/Stop Terminal Dry contact Edge Operation status...

  • Page 43: External Input

    8-1. External input • “Operation/Stop” mode or "Forced stop" mode can be selected with function setting of indoor unit. • A twisted pair cable (22AWG) should be used. Maximum length of cable is 492 ft (150 m). • The wire connection should be separate from the power cable line. ¢...

  • Page 44: 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. ¢ Indoor unit • A twisted pair cable (22AWG) should be used. Maximum length of cable is 82 ft (25 m). •...

  • Page 45: 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 46 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 47 ¢ 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 48: 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 49  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 50  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 Stop Input of indoor unit Terminal (Remote On →...
  • Page 51 ¢ 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 52 ¢ 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 53 ¢ 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 54 • Design and install external heater appropriately with considering its protection. • 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 heating device. - 50 - 8-4.
  • Page 55  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 56  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 57  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 58 • 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 59  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 60 • 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 61 ¢ 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 62: 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 63 ¢ DIP switch setting • SW100: Remote controller address setting NOTE: Because this setting is normally done automatically when 2-core wired remote con- troller is installed, setting is unnecessary. Multiple indoor units can be operated by using one wired remote controller. Set the unit number of each indoor unit.

  • Page 64: Contents Of Function Setting

    9-2. 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 Ceiling height...
  • Page 65 3) Outlet directions Select the appropriate number of outlet directions according to the installation conditions. Function number Setting value Setting description Factory setting 4-way ♦ 3-way 4) Vertical airflow direction range control To prevent draft, change the setting to "Upward" (01). Note that the airflow in certain usage conditions may leave the ceiling dirty.
  • Page 66 5) 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 67 6) 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 68 9) 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 ♦ 10) External input control "Operation/Stop" mode or "Forced stop" mode can be selected. Function number Setting value Setting description...
  • Page 69 13) 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 70 16) 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” in Chapter 8-4. "Details of function"...

  • Page 71: Accessories

    10. Accessories Part name Exterior Q’ty Part name Exterior Q’ty Installation manual Insulation Operation manual Drain hose Template (Carton top) Hose band Drain hose heat Washer insulation Coupler heat insulation Cable tie (Large) (Large) Coupler heat insulation Cable tie (Small) (Small) - 67 - 10.

  • Page 72: 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 73: 11-2.Cassette Grille

    11-2. Cassette grille Exterior Part name Model name Summary This cassette grille to blow airflow in Cassette Grille UTG-GCGF 360º direction by unique seamless airflow louver design. This cassette grille to blow airflow in 360º direction by unique seamless Cassette Grille UTG-LCGVCB airflow louver design.
  • Page 74 FGL sales company. For connection between indoor unit Modbus UTY-VMSX with UART interface and a Modbus Converter open network. This converter can control Fujitsu Thermostat UTY-TTRX General products using a third-party Converter thermostat controller. This converter is required when...

  • Page 75: Part 2. Outdoor Unit

    Part 2. OUTDOOR UNIT SINGLE TYPE: AOU18RGLX AOU24RGLX AOU30RGLX AOU36RGLX...

  • Page 76: Specifications

    1. Specifications Type Inverter, Heat pump Model name AOU18RGLX AOU24RGLX AOU30RGLX AOU36RGLX Power supply 208/230 V~ 60 Hz Power supply intake Outdoor unit Available voltage range 187—253 V Starting current 11.5 16.1 Cooling 1,177 (2,000) 2,119 (3,600) 2,237 (3,800) Airflow rate CFM (m Heating 1,489 (2,530)

  • Page 77: Dimensions

    2. Dimensions 2-1. Models: AOU18RGLX, AOU24RGLX, AOU30RGLX, and AOU36RGLX Unit: in (mm) Top view 1-1/4 3(77) 35-7/16 (900) 13 (330) (12) (31) 15-3/4 (400) Front view Side view 25-5/8 (650) Airflow 5-3/4 (147) 6-3/4 (170) Bottom view - 73 - 2-1.

  • Page 78: Installation Space

    3. Installation space 3-1. Models: AOU18RGLX, AOU24RGLX, AOU30RGLX, and AOU36RGLX ¢ Space requirement Provide sufficient installation space for product safety.  Single outdoor unit installation • When the upper space is open: Unit: in (mm) When there are obstacles at the rear only. When there are obstacles at the rear and sides.
  • Page 79 • When there is 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. 19 Max. 19 (500) (500) 40 (1,000) or more 24 (600) or more...
  • Page 80  Multiple outdoor unit installation • When the upper space is open: Unit: in (mm) When there are obstacles at the rear only. When there are obstacles at the front only. 60 (1,500) or more 10 (250) 12 (300) or more or more When there are obstacles at the front and rear.
  • Page 81  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 79 (2,000) or more 119 (3,000) or more 24 (600) or more 24 (600) or more 60 (1,500) or more 40 (1,000) or more 10 (250) or more...

  • Page 82: Refrigerant Circuit

    4. Refrigerant circuit 4-1. Models: AOU18RGLX, AOU24RGLX, AOU30RGLX, and AOU36RGLX Heat exchanger 3-Way ( INDOOR ) valve Muffler 2-Way valve Pressure switch 4-Way valve Strainer Expansion valve Heat exchanger Strainer Pressure ( OUTDOOR ) check valve : Cooling : Heating : Thermistor (Compressor temperature) : Thermistor (Discharge temperature) : Thermistor (Outdoor temperature)

  • Page 83: Wiring Diagrams

    5. Wiring diagrams 5-1. Model: AOU18RGLX - 79 - 5-1. Model: AOU18RGLX 5. Wiring diagrams...

  • Page 84: Models: Aou24Rglx, Aou30Rglx, And Aou36Rglx

    5-2. Models: AOU24RGLX, AOU30RGLX, and AOU36RGLX - 80 - 5-2. Models: AOU24RGLX, AOU30RGLX, and AOU36RGLX 5. Wiring diagrams...

  • Page 85: 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: AOU18RGLX, AOU24RGLX, AOU30RGLX, and AOU36RGLX NOTE: Values mentioned in the table are calculated based on the maximum capacity.

  • Page 86: Additional Charge Calculation

    7. Additional charge calculation 7-1. Model: AOU18RGLX Refrigerant type R410A lb oz 4 lb 10 oz Factory charge amount 2,100 ¢ Refrigerant charge 66 or less 164 (Max.) Total pipe length 0.22 oz/ft 20 or less 50 (Max.) 14.1 21.2 Additional charge (20 g/m) amount...

  • Page 87: Airflow

    8. Airflow 8-1. Model: AOU18RGLX  Cooling 2,000 1,177  Heating 2,530 1,489 8-2. Model: AOU24RGLX  Cooling 3,600 1,000 2,119  Heating 3,600 1,000 2,119 - 83 - 8-1. Model: AOU18RGLX 8. Airflow...

  • Page 88: Model: Aou30Rglx

    8-3. Model: AOU30RGLX  Cooling 3,600 1,000 2,119  Heating 3,600 1,000 2,119 8-4. Model: AOU36RGLX  Cooling 3,800 1,056 2,237  Heating 3,800 1,056 2,237 - 84 - 8-3. Model: AOU30RGLX 8. Airflow...

  • Page 89: Operation Noise (Sound Pressure)

    9. Operation noise (sound pressure) 9-1. Noise level curve ¢ Model: AOU18RGLX  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 90 ¢ Model: AOU30RGLX  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 91: 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. - 87 - 9-2. Sound level check point 9.

  • Page 92: Electrical Characteristics

    10. Electrical characteristics Model name Item Unit AOU18RGLX AOU24RGLX AOU30RGLX AOU36RGLX Voltage 208/230~ Power supply Frequency 18.3 20.8 24.6 MCA * Starting current 11.5 16.1 MAX. CKT. BKR * Power cable 16—14 Wiring Size 20—16 spec. * Connection Limited cable * wiring ft (m) 167 (51)

  • Page 93: Safety Devices

    11. Safety devices Model Type of protection Protection form AOU18RGLX Current fuse (Filter PCB) 250 V, 5 A × 2 Circuit protection Current fuse (Main PCB) 250 V, 3.15 A × 2 °F (150 °C) Activate Fan motor stop Fan motor Thermal protection protection °F (120...

  • Page 94: Accessories

    12. Accessories 12-1. Models: AOU18RGLX, AOU24RGLX, AOU30RGLX, and AOU36RGLX Part name Exterior Part name Exterior Installation manual Drain cap Drain pipe - 90 - 12-1. Models: AOU18RGLX, AOU24RGLX, AOU30RGLX, and AOU36RGLX 12. Accessories...

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