Fujitsu ARU18RGLX Design & Technical Manual
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Fujitsu ARU18RGLX Design & Technical Manual

Fujitsu ARU18RGLX Design & Technical Manual

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AIR CONDITIONER
Duct type
DESIGN & TECHNICAL MANUAL
INDOOR
OUTDOOR
ARU18RGLX
ARU24RGLX
ARU36RGLX
ARU30RGLX
AOU18RGLX
AOU24RGLX
AOU30RGLX
AOU36RGLX
DR_AR025EF_10
2022.12.07

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Summary of Contents for Fujitsu ARU18RGLX

  • Page 1 AIR CONDITIONER Duct type DESIGN & TECHNICAL MANUAL INDOOR ARU18RGLX ARU24RGLX ARU36RGLX ARU30RGLX OUTDOOR AOU18RGLX AOU24RGLX AOU30RGLX AOU36RGLX DR_AR025EF_10 2022.12.07...
  • 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 © 2019, 2022 Fujitsu General Limited. All rights reserved.

  • Page 3: Table Of Contents

    CONTENTS Part 1. INDOOR UNIT................1 1. Specifications....................2 2. Dimensions....................6 2-1. Models: ARU18RGLX, ARU24RGLX, and ARU30RGLX..........6 2-2. Model: ARU36RGLX......................7 2-3. Installation space requirement ..................8 2-4. Maintenance space requirement..................9 3. Wiring diagrams ..................10 3-1. Models: ARU18RGLX and ARU24RGLX...............10 3-2. Models: ARU30RGLX and ARU36RGLX...............11 4.
  • Page 4 CONTENTS (continued) Part 2. OUTDOOR UNIT..............83 1. Specifications....................84 2. Dimensions....................85 2-1. Models: AOU18RGLX, AOU24RGLX, AOU30RGLX, and AOU36RGLX.......85 3. Installation space ..................86 3-1. Models: AOU18RGLX, AOU24RGLX, AOU30RGLX, and AOU36RGLX.......86 4. Refrigerant circuit ..................90 4-1. Models: AOU18RGLX, AOU24RGLX, AOU30RGLX, and AOU36RGLX.......90 5. Wiring diagrams ..................91 5-1.

  • Page 5: Part 1. Indoor Unit

    Part 1. INDOOR UNIT DUCT TYPE: ARU18RGLX ARU24RGLX ARU30RGLX ARU36RGLX...

  • Page 6: Specifications

    1. Specifications Duct Type Inverter, Heat pump Model name ARU18RGLX ARU24RGLX ARU30RGLX Power supply 208/230 V~ 60 Hz Power supply intake Outdoor unit Available voltage range 187—253 V 5.28 7.03 8.79 Rated Btu/h 18,000 24,000 30,000 Cooling 1.58—6.30 1.58—8.50 2.81—10.26 Min.—Max.
  • Page 7 Duct Type Inverter, Heat pump Model name ARU18RGLX ARU24RGLX ARU30RGLX NOTES: • Specifications are based on the following conditions: – Cooling: Indoor temperature of 80°FDB/67°FWB (26.67°CDB/19.44°CWB), and outdoor temperature of 95°FDB/75°FWB (35°CDB/23.9°CWB). – Heating: Indoor temperature of 70°FDB/60°FWB (21.11°CDB/15.56°CWB), and outdoor temperature of 47°FDB/43°FWB (8.33°CDB/6.11°CWB).
  • Page 8 Duct Type Inverter, Heat pump Model name ARU36RGLX Power supply 208/230 V~ 60 Hz Power supply intake Outdoor unit Available voltage range 187—253 V 10.55 Rated Btu/h 36,000 Cooling 2.81—11.43 Min.—Max. Btu/h 9,600—39,000 10.55 Rated 47°FDB Btu/h 36,000 (Outdoor temp.) 2.70—14.07 Capacity Min.—Max.
  • Page 9 Duct Type Inverter, Heat pump Model name ARU36RGLX NOTES: • Specifications are based on the following conditions: – Cooling: Indoor temperature of 80°FDB/67°FWB (26.67°CDB/19.44°CWB), and outdoor temperature of 95°FDB/75°FWB (35°CDB/23.9°CWB). – Heating: Indoor temperature of 70°FDB/60°FWB (21.11°CDB/15.56°CWB), and outdoor temperature of 47°FDB/43°FWB (8.33°CDB/6.11°CWB). –...

  • Page 10: Dimensions

    2. Dimensions 2-1. Models: ARU18RGLX, ARU24RGLX, and ARU30RGLX Unit: in (mm) 40-15/16 (1,040) 2-1/16 11-13/16 35-1/4 (895) (53) (300) P3-15/16 × 8 = 31-1/2 1-7/8 5-7/8 2-15/16 (47) 7-1/2 (P100 × 8 = 800) (150) (75) Ø4-15/16 (190) (Ø125) Control Ø3/16...

  • Page 11: Model: Aru36Rglx

    2-2. Model: ARU36RGLX Unit: in (mm) 56-11/16 (1,440) 2-1/16 11-13/16 51 (1,295) (53) (300) P3-15/16 × 12 = 47-1/4 1-7/8 2-15/16 5-7/8 (47) (P100 × 12 = 1,200) 7-1/2 (75) (150) Ø4-15/16 (190) (Ø125) Control Ø3/16 pipe (Ø4) Liquid Drain pipe port 5-1/2...

  • Page 12: Installation Space Requirement

    2-3. Installation space requirement Provide sufficient installation space for product safety. NOTE: The detailed component shape depends on the model. ¢ Models: ARU18RGLX, ARU24RGLX, ARU30RGLX, and ARU36RGLX Unit: in (mm) 1 (20) or more 6 (150) 12 (300) or more...

  • Page 13: Maintenance Space Requirement

    NOTES: • Do not place any wiring or illumination in the maintenance space, as they will impede service. • The detailed component shape depends on the model. ¢ Models: ARU18RGLX, ARU24RGLX, ARU30RGLX, and ARU36RGLX Unit: in (mm) • Provide a maintenance access for maintenance purposes.

  • Page 14: Wiring Diagrams

    3. Wiring diagrams 3-1. Models: ARU18RGLX and ARU24RGLX - 10 - 3-1. Models: ARU18RGLX and ARU24RGLX 3. Wiring diagrams...

  • Page 15: Models: Aru30Rglx And Aru36Rglx

    3-2. Models: ARU30RGLX and ARU36RGLX - 11 - 3-2. Models: ARU30RGLX and ARU36RGLX 3. Wiring diagrams...

  • 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: ARU18RGLX Indoor temperature °FDB °FWB °FDB...
  • Page 17 ¢ Model: ARU24RGLX Indoor temperature °FDB °FWB °FDB kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h 19.04 14.82 0.43 21.23 14.89 0.43 22.68 16.22 0.43 24.13 17.55 0.44 25.56 17.48 0.44 27.02 18.61 0.45 18.63 14.81 0.67 20.77 14.88 0.68 22.19 16.20 0.68 23.60 17.53...
  • Page 18 ¢ Model: ARU30RGLX 1,001 Indoor temperature °FDB °FWB °FDB kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h 26.44 20.40 0.76 29.43 20.53 0.75 31.43 22.35 0.74 33.43 24.16 0.73 35.45 24.07 0.74 37.47 25.64 0.74 25.86 20.23 1.20 28.79 20.36 1.21 30.75 22.16 1.23 32.71...
  • Page 19 ¢ Model: ARU36RGLX 1,207 Indoor temperature °FDB °FWB °FDB kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h 30.62 25.34 0.59 34.14 25.45 0.60 34.04 24.26 0.78 36.21 26.25 0.78 38.36 26.15 0.79 40.56 27.84 0.80 27.95 22.15 1.27 31.17 22.26 1.28 33.30 24.24 1.30 35.42...

  • Page 20: Heating Capacity

    4-2. Heating capacity NOTE: Values mentioned in the table are calculated based on the maximum capacity. ¢ Model: ARU18RGLX Indoor temperature °FDB °FDB °FWB kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h 16.36 2.03 15.98 2.07 15.59 2.12 15.19 2.16 14.82 2.20 18.88 2.06...
  • Page 21 ¢ Model: ARU24RGLX Indoor temperature °FDB °FDB °FWB kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h 20.24 3.21 19.75 3.27 19.27 3.39 18.78 3.40 18.29 3.48 23.34 3.24 22.78 3.31 22.22 3.38 21.66 3.44 21.10 3.52 25.21 3.27 24.62 3.33 24.01 3.40 23.42 3.47 22.81 3.53...
  • Page 22 ¢ Model: ARU36RGLX 1,089 Indoor temperature °FDB °FDB °FWB kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h 31.14 4.54 30.39 4.63 29.64 4.76 28.90 4.81 28.15 4.92 34.58 4.80 33.75 4.91 32.92 5.01 32.09 5.10 31.26 5.21 37.34 4.84 36.47 4.93 35.57 5.03 34.70 5.13 33.79...

  • Page 23: Fan Performance

    5. Fan performance NOTE: Airflow and capacity/outlet temperature curve data are measured based on the same condi- tions mentioned in "Specifications". 5-1. Fan performance curve ¢ Model: ARU18RGLX (inWG) (Pa) Fan performance curve_1 1.20 1.12 1.04 0.96 0.88 Hi (SP mode20) 0.80...
  • Page 24 NOTES: • Setting of the external static pressure is switchable into modes by using the remote controller. • According to the resistance of the connecting duct, perform the setting of the external static pressure with referring “Fan performance curve_2” above. •...
  • Page 25  Characteristics of air volume and capacity • Cooling (CFM) 1,177 1,000 1,500 2,000 Airflow • Heating (CFM) 1,177 1,000 1,500 2,000 Airflow - 21 - 5-1. Fan performance curve 5. Fan performance...
  • Page 26 ¢ Model: ARU24RGLX (inWG) (Pa) Fan performance curve_1 1.20 1.12 1.04 0.96 0.88 Hi (SP mode20) 0.80 0.72 0.64 SP mode20 upper limit 0.56 0.48 0.40 0.32 0.24 Normal SP upper limit Hi (Normal SP) Qu (SP mode20) 0.16 Normal SP 0.80 lower limit Qu (Normal SP)
  • Page 27  Characteristics of air volume and capacity • Cooling (CFM) 1,177 1,000 1,500 2,000 Airflow • Heating (CFM) 1,177 1,472 1,000 1,500 2,000 2,500 Airflow - 23 - 5-1. Fan performance curve 5. Fan performance...
  • Page 28 ¢ Model: ARU30RGLX (inWG) (Pa) Fan performance curve_1 1.20 1.12 1.04 0.96 0.88 Hi (SP mode20) 0.80 0.72 0.64 SP mode20 upper limit 0.56 0.48 SP mode20 0.40 lower limit 0.32 Qu(SP mode20) 0.24 Hi (Normal SP) Normal SP upper limit 0.16 0.80 Normal SP...
  • Page 29  Characteristics of air volume and capacity • Cooling (CFM) 1,177 1,472 1,000 1,500 2,000 2,500 Airflow • Heating (CFM) 1,177 1,472 1,000 1,500 2,000 2,500 Airflow - 25 - 5-1. Fan performance curve 5. Fan performance...
  • Page 30 ¢ Model: ARU36RGLX Fan performance curve_1 (inWG) (Pa) 1.20 1.12 1.04 0.96 0.88 Hi (SP mode20) 0.80 0.72 SP mode20 0.64 upper limit 0.56 0.48 SP mode20 0.40 lower limit 0.32 Normal SP Hi (Normal SP) upper limit 0.24 Qu(SP mode20) 0.16 Normal SP 0.80...
  • Page 31  Characteristics of air volume and capacity • Cooling (CFM) 1,177 1,472 1,766 1,000 1,500 2,000 2,500 3,000 Airflow • Heating (CFM) 1,177 1,472 1,766 1,000 1,500 2,000 2,500 3,000 Airflow ¢ Automatic airflow adjustment procedures 1. To start the auto setting, use setting value 32 in function number 26. 2.

  • Page 32: Airflow

    5-2. Airflow ¢ Model: ARU18RGLX  Cooling Fan speed Airflow 1,050 HIGH QUIET  Heating Fan speed Airflow 1,050 HIGH QUIET - 28 - 5-2. Airflow 5. Fan performance...
  • Page 33 ¢ Model: ARU24RGLX  Cooling Fan speed Airflow 1,360 HIGH 1,080 QUIET  Heating Fan speed Airflow 1,360 HIGH 1,080 QUIET - 29 - 5-2. Airflow 5. Fan performance...
  • Page 34 ¢ Model: ARU30RGLX  Cooling Fan speed Airflow 1,700 HIGH 1,001 1,360 1,190 1,070 QUIET  Heating Fan speed Airflow 1,700 HIGH 1,001 1,360 1,190 1,070 QUIET - 30 - 5-2. Airflow 5. Fan performance...
  • Page 35 ¢ Model: ARU36RGLX  Cooling Fan speed Airflow 2,050 HIGH 1,207 1,640 1,330 1,070 QUIET  Heating Fan speed Airflow 1,850 HIGH 1,089 1,640 1,330 1,070 QUIET - 31 - 5-2. Airflow 5. Fan performance...

  • Page 36: Operation Noise (Sound Pressure)

    6. Operation noise (sound pressure) 6-1. Noise level curve ¢ Model: ARU18RGLX  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 NC-20 NC-20 QUIET NC-15...
  • Page 37 ¢ Model: ARU30RGLX  Cooling  Heating NC-65 NC-65 NC-60 NC-60 NC-55 NC-55 NC-50 NC-50 HIGH NC-45 NC-45 HIGH NC-40 NC-40 NC-35 NC-35 NC-30 NC-30 NC-25 NC-25 QUIET NC-20 NC-20 QUIET 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 38: Sound Level Check Point

    6-2. Sound level check point 79 in (2 m) 40 in (1 m) Product Measuring duct Measuring duct (Set the static pressure as rating in this area) Microphone Microphone Front view Side view - 34 - 6-2. Sound level check point 6.

  • Page 39: Safety Devices

    7. Safety devices Model Type of protection Protection form ARU18RGLX ARU24RGLX Circuit protection Current fuse (PCB*) 250 V, 5 A 239 ±59°F (115 ±15°C) Activate Fan motor stop Thermal protection program Fan motor protection 158°F (70°C) Reset Fan motor restart Current protection Activate 2.13 A...

  • Page 40: 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...
  • Page 41 ¢ 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 42: 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 43: 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 44 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 45 ¢ 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 46: 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 47  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 48  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 49 ¢ 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 50 ¢ 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 51 ¢ 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 52 ¢ External heater output Function setting Indoor unit Wired R. C. Control Primary heater Auxiliary heater Control switching external heaters Sensor activation* No. 61 Auxiliary heater Heat pump 61-00 — External device* control 1 Auxiliary heater Heat pump External device 61-01 —...
  • Page 53 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 heating device. - 49 - 8-4.
  • Page 54  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 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 is on as shown in following diagram of heating Heater on temperature. DIP-SW101-3 • 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 is on as shown in following diagram of heating Heater on 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 DIP-SW101-3: On DIP-SW101-3: Off *: 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 DIP-SW101-3 On DIP-SW101-3 Off * 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  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 62 • 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 DIP-SW101-3 On DIP-SW101-3 Off *: 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 63  Auxiliary heat pump control • External heater output Operation Condition Heater is on as shown in following diagram of heating Heater on temperature. DIP-SW101-3 • Heater is off as shown in following diagram of heating temperature. • Other than heating mode Indoor unit fan •...
  • Page 64  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. DIP-SW101-3 • Heater is off as shown in following diagram of heating temperature.
  • Page 65 • Outdoor temperature zone Outdoor temp. Combination zone     ( Heat pump + Heater) A + 3.6°F ( 2°C): -0.4°F (-18°C) *A: -4°F (-20°C)   Heater only zone   *: Adjustable by function setting 67 • Operation status 46.4°F (8°C) 42.8°F (6°C) Outdoor temperature (Factory setting)
  • Page 66  Auxiliary heat pump control by outdoor temperature 2 • External heater output Operation Condition Heater is on as shown in following diagram of heating Heater on temperature. DIP-SW101-3 • Heater is off as shown in following diagram of heating temperature.
  • Page 67 • Outdoor temperature zone Outdoor temp. Heater only zone B + 3.6°F (2°C): 46.4°F (8°C) *B: 42.8°F (6°C) Combination zone (Heat pump + Heater) *: Adjustable by function setting 67 • 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)
  • Page 68  Auxiliary heat pump control by outdoor temperature 3 • External heater output Operation Condition Heater is on as shown in following diagram of heating Heater on temperature. DIP-SW101-3 • Heater is off as shown in following diagram of heating temperature.
  • Page 69 • Outdoor temperature zone Outdoor temp. Heater only zone     B + 3.6°F (2°C): 46.4°F (8°C) B: 42.8°F (6°C)*   Combination zone   (Heat pump + Heater) A + 3.6°F (2°C): -0.4°F (-18°C) A: -4°F (-20°C)*   Heater only zone  ...
  • Page 70 ¢ 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 71: Function Settings

    NOTE: Incorrect settings can cause a product malfunction. 9-1. Function settings on indoor unit ¢ Models: ARU18RGLX, ARU24RGLX, ARU30RGLX, and ARU36RGLX By using some components on the PCB, you can change the function settings. Related components on the PCB and the applicable settings...
  • Page 72  DIP switch setting • Remote controller address setting (SW100) When operating a number of indoor units by using a wired remote controller, DIP switch set- ting for assigning unit number to each indoor unit is required. DIP switches are normally set to make the unit number 00. Remote DIP switch number controller...

  • Page 73: 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 74 2) Static pressure Select the appropriate static pressure according to the installation conditions. Function number Setting value Setting description Factory setting 0.12 inWG (30 Pa) 0.16 inWG (40 Pa) 0.20 inWG (50 Pa) 0.24 inWG (60 Pa) 0.28 inWG (70 Pa) 0.32 inWG (80 Pa) 0.36 inWG (90 Pa) 0.40 inWG (100 Pa)
  • Page 75 3) Room temperature control for indoor unit sensor NOTE: If the remote sensor unit option is selected, perform this setting. 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 76 4) 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 77 7) Cold air prevention This setting is to disable the cold air prevention function during heating operation. When disabled, the fan setting will always follow the setting on the remote controller. (Excluding defrost mode) Function number Setting value Setting description Factory setting Enable ♦...
  • Page 78 11) Indoor unit fan control for energy saving for cooling Enables or disables the power-saving function by controlling the indoor unit fan rotation when the outdoor unit is stopped during cooling operation. Function number Setting value Setting description Factory setting Disable Enable Remote controller...
  • Page 79 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 42. Setting description Setting value of function 61: Function Setting Factory...
  • Page 80 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 81 19) Fan delay time Sets the fan delay time when the heater is turned off. Function number Setting value Setting description Factory setting 1 minute ♦ 50 seconds 40 seconds 30 seconds 20) External heater use in defrosting Enables or disables external heater use in defrosting. NOTE: Inappropriate heater selection may cause cold air in defrosting.

  • Page 82: Accessories

    10. Accessories Part name Exterior Part name Exterior Operation manual Cable tie (large) Installation manual Cable tie (medium) (indoor unit) Special nut A (large Cable tie (small) flange) Special nut B (small Drain hose insulation flange) Washer Drain hose Coupler heat insulation Hose band (large) Coupler heat insulation...

  • Page 83: 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 84: 11-2.Others

    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. - 80 - 11-2. Others...
  • Page 85 Exterior Part name Model name Summary This converter is required when Network UTY-VTGX connecting single split system to VRF Converter network system. Network This converter is required when Converter UTY-VTGXV connecting single split system to VRF (AC power network system. supply) NOTE: Combined use of following optional parts and WLAN Adapter (UTY-TFSXZ2) is not allowed.
  • Page 86 - 82 - 11-2. Others 11. Optional parts...

  • Page 87: Part 2. Outdoor Unit

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

  • Page 88: 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 89: 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 - 85 - 2-1.

  • Page 90: 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 91 • 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 92  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 93  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 94: 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 95: Wiring Diagrams

    5. Wiring diagrams 5-1. Model: AOU18RGLX - 91 - 5-1. Model: AOU18RGLX 5. Wiring diagrams...

  • Page 96: Models: Aou24Rglx, Aou30Rglx, And Aou36Rglx

    5-2. Models: AOU24RGLX, AOU30RGLX, and AOU36RGLX - 92 - 5-2. Models: AOU24RGLX, AOU30RGLX, and AOU36RGLX 5. Wiring diagrams...

  • Page 97: 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 98: Additional Charge Calculation

    7. Additional charge calculation 7-1. Model: AOU18RGLX Refrigerant type R410A lb oz 4 lb 10.1 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 99: 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 8-3. Model: AOU30RGLX  Cooling 3,600 1,000 2,119  Heating 3,600 1,000 2,119 - 95 - 8-1.

  • Page 100: Model: Aou36Rglx

    8-4. Model: AOU36RGLX  Cooling 3,800 1,056 2,237  Heating 3,800 1,056 2,237 - 96 - 8-4. Model: AOU36RGLX 8. Airflow...

  • Page 101: 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 102 ¢ 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 103: 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. - 99 - 9-2. Sound level check point 9.

  • Page 104: 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 spec. Size 20—16 Connection Limited wiring cable * ft (m) 167 (51) length...

  • Page 105: Safety Devices

    11. Safety devices Model Type of protection Protection form AOU18RGLX AOU24RGLX AOU30RGLX AOU36RGLX 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 protection Thermal protection °F (120 °C)

  • Page 106: Accessories

    12. Accessories 12-1. Models: AOU18RGLX, AOU24RGLX, AOU30RGLX, and AOU36RGLX Part name Exterior Part name Exterior Installation manual Drain cap Drain pipe - 102 - 12-1. Models: AOU18RGLX, AOU24RGLX, AOU30RGLX, and AOU36RGLX 12. Accessories...

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