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Fujitsu ARXG54KHTA Design & Technical Manual

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AIR CONDITIONER
Duct type
DESIGN & TECHNICAL MANUAL
INDOOR
OUTDOOR
ARXG45KHTA
ARXG54KHTA
AOYG45KBTB
AOYG54KBTB
DR_AR029EF_01
2019.04.22

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Summary of Contents for Fujitsu ARXG54KHTA

  • Page 1 AIR CONDITIONER Duct type DESIGN & TECHNICAL MANUAL INDOOR ARXG45KHTA ARXG54KHTA OUTDOOR AOYG45KBTB AOYG54KBTB DR_AR029EF_01 2019.04.22...
  • 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....................3 2-1. Models: ARXG45KHTA and ARXG54KHTA ..............3 2-2. Installation space requirement ..................4 2-3. Maintenance space requirement..................5 3. Wiring diagrams ....................6 3-1. Models: ARXG45KHTA and ARXG54KHTA ..............6 4. Capacity table....................7 4-1. Cooling capacity.......................7 4-2.
  • Page 4 CONTENTS (continued) Part 2. OUTDOOR UNIT..............33 1. Specifications....................34 2. Dimensions....................35 2-1. Models: AOYG45KBTB and AOYG54KBTB ..............35 3. Installation space ..................36 3-1. Models: AOYG45KBTB and AOYG54KBTB ..............36 4. Refrigerant circuit ..................39 4-1. Models: AOYG45KBTB and AOYG54KBTB ..............39 5. Wiring diagrams ..................40 5-1.

  • Page 5: Part 1. Indoor Unit

    Part 1. INDOOR UNIT DUCT TYPE: ARXG45KHTA ARXG54KHTA...

  • Page 6: Specifications

    1. Specifications Duct Type Inverter heat pump Model name ARXG45KHTA ARXG54KHTA Power supply 230 V ~ 50 Hz Power supply intake Outdoor unit Available voltage range 198—264 V 12.1 13.4 Rated Btu/h 41,300 45,700 Cooling 4.0—14.0 5.0—14.5 Min.—Max. Btu/h 13,600—47,800 17,100—49,500...

  • Page 7: Dimensions

    2. Dimensions 2-1. Models: ARXG45KHTA and ARXG54KHTA Unit: mm Rear view 1,080 1,000 Drain port 12-Φ3 P120 × 2 = 240 Side view (R) P5 × 120 = 600 Side view (L) 1,050 Top view Front view - 3 - 2-1.

  • Page 8: Installation Space Requirement

    2-2. Installation space requirement Provide sufficient installation space for product safety. ¢ Models: ARXG45KHTA and ARXG54KHTA Installation by which service space is mode on top of the unit (recommended). Unit: mm 350 or more 450 or more (Service space) Service access Installation by which service space is carried out from the bottom of the unit.

  • Page 9: Maintenance Space Requirement

    For future maintenance and service access, provide sufficient maintenance space. NOTE: Do not place any wiring or illumination in the maintenance space, as they will impede ser- vice. ¢ Models: ARXG45KHTA and ARXG54KHTA Unit: mm 450 or more Control box...

  • Page 10: Wiring Diagrams

    3. Wiring diagrams 3-1. Models: ARXG45KHTA and ARXG54KHTA - 6 - 3-1. Models: ARXG45KHTA and ARXG54KHTA 3. Wiring diagrams...

  • Page 11: Capacity Table

    3.05 7.07 6.78 3.12 7.44 6.99 3.16 7.80 7.28 3.21 8.17 7.58 3.25 8.51 7.72 3.25 9.03 7.93 3.25 ¢ ARXG54KHTA 3,350 Indoor temperature °CDB °CWB °CDB 9.58 8.34 1.89 10.39 8.76 1.93 10.94 9.04 1.96 11.48 9.42 1.99 12.02 9.80...

  • Page 12: Heating Capacity

    4.78 19.59 4.81 19.11 4.83 18.66 4.83 17.55 4.83 21.01 4.77 20.50 4.80 20.00 4.82 19.54 4.82 18.38 4.82 ¢ ARXG54KHTA 3,350 Indoor temperature °CDB °CDB °CWB 12.95 5.16 12.65 5.19 12.34 5.22 12.05 5.22 11.33 5.22 14.39 5.38 14.04 5.41...

  • Page 13: Fan Performance

    5. Fan performance 5-1. Fan performance curve ¢ ARXG45KHTA Static pressure (Pa) m3/h — — 3,350 3,150 2,950 2,700 2,450 2,280 1,900 HIGH — — — — 1,972 1,854 1,736 1,589 1,442 1,342 1,118 m3/h — 2,850 2,700 2,520 2,350 2,160 1,970 1,750...
  • Page 14 • Cooling Capacity 1,500 2,000 2,500 3,000 3,500 4,000 Airflow (m • Heating Capacity 1,500 2,000 2,500 3,000 3,500 4,000 Airflow (m - 10 - 5-1. Fan performance curve 5. Fan performance...
  • Page 15 ¢ ARXG54KHTA Static pressure (Pa) m3/h — — 3,350 3,150 2,950 2,700 2,450 2,280 1,900 HIGH — — — — 1,972 1,854 1,736 1,589 1,442 1,342 1,118 m3/h — 2,850 2,700 2,520 2,350 2,160 1,970 1,750 — — — speed —...
  • Page 16 • Cooling Capacity 1,500 2,000 2,500 3,000 3,500 4,000 Airflow (m • Heating Capacity 1,500 2,000 2,500 3,000 3,500 4,000 Airflow (m - 12 - 5-1. Fan performance curve 5. Fan performance...

  • Page 17: Airflow

    5-2. Airflow ¢ ARXG45KHTA  Cooling Fan speed Airflow 3,350 HIGH 1,972 2,850 1,678 2,430 1,430  Heating Fan speed Airflow 3,350 HIGH 1,972 2,850 1,678 2,430 1,430 - 13 - 5-2. Airflow 5. Fan performance...
  • Page 18 ¢ ARXG54KHTA  Cooling Fan speed Airflow 3,350 HIGH 1,972 2,850 1,678 2,430 1,430  Heating Fan speed Airflow 3,350 HIGH 1,972 2,850 1,678 2,430 1,430 - 14 - 5-2. Airflow 5. Fan performance...

  • Page 19: Operation Noise (Sound Pressure)

    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 ¢ Model: ARXG54KHTA  Cooling  Heating NC-65 NC-65 NC-60 NC-60 NC-55 NC-55 NC-50 NC-50 HIGH HIGH NC-45...

  • Page 20: Sound Level Check Point

    6-2. Sound level check point Measuring duct Measuring duct Set the static pressure as rating in this area Side view Front view - 16 - 6-2. Sound level check point 6. Operation noise (sound pressure)

  • Page 21: Safety Devices

    7. Safety devices Model Type of protection Protection form ARXG45KHTA ARXG54KHTA Circuit protection Current fuse (PCB*) 250 V, 3.15 A 145 ±5 °C Activate Fan motor stop Thermal protection Fan motor protection program 93 ±15 °C Reset Fan motor restart...

  • Page 22: External Input And Output

    8. External input and output Connector Input Output Remarks CN114 Control input — CN115 — Operation status output See external input/output settings for details. CN14 — Fresh air control output CN15 — Auxiliary heater output 8-1. Preparation Before connecting the external input, preparation is necessary using the signal wire in the figure be- low.

  • Page 23: External Input

    8-2. 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 150 m. • The wire connection should be separate from the power cable line. ¢...

  • Page 24: External Output

     Optional part Model name Exterior External input wire UTD-ECS5A 8-3. External output With using external output function, operating status of this product can be transmitted to the exter- nal device, and also, this product can be inter-connected with the external device. ¢...
  • Page 25 ¢ Fresh-air control output Signal linked to the indoor unit fan on can be output. NOTE: In cold-air prevention control operation, the signal becomes off.  Circuit diagram example Indoor unit Connected unit control PCB Example: Fan Example: 12 V Connector Relay unit Relay...
  • Page 26 ¢ Auxiliary heater output When indoor unit fan and compressor is turned on in heating operation, the signal is output from connector. Specifications of the signal output performance are as shown as follows: Example: When set temperature (Ts) is set at 22 °C; •...
  • Page 27  Optional part Model name Exterior Heater output wire UTD-ECS5A - 23 - 8-3. External output 8. External input and output...

  • Page 28: 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. Models: ARXG45KHTA and ARXG54KHTA By using some components on the PCB, you can change the function settings. Related components on the PCB and the applicable settings...
  • Page 29 When the indoor unit is stopped while operating in conjunction with auxiliary heater, the indoor unit fan operation will continue for one minute. JM state Factory setting Connect Disable ♦ Disconnect Enable - 25 - 9-1. Models: ARXG45KHTA and ARXG54KHTA 9. Function settings...

  • Page 30: 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 31 3) Room temperature sensor control for heating 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. Function number Setting value Setting description Factory setting Standard ♦...
  • Page 32 8) 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 33: Accessories

    10. Accessories 10-1. Models: ARXG45KHTA and ARXG54KHTA Part name Exterior Q’ty Part name Exterior Q’ty Coupler heat insulation Operating manual (small) Operating manual Special nut A (CD-ROM) (large flange) Special nut B Installation manual (small flange) Coupler heat insulation (large) - 29 - 10-1.

  • Page 34: Optional Parts

    11. Optional parts 11-1. Controllers Exterior Part name Model name Summary Room temperature can be controlled by detecting the temperature Wired remote accurately with built-in thermo sensor. UTY-RNNYM controller Wire type: Polar 3-wire Compact remote controller concentrates on the basic functions such as Start/Stop, fan control, Simple remote temperature setting, and operation...

  • Page 35: 11-2.Others

    11-2. Others Exterior Part name Model name Summary Use to connect with various peripheral (×1) (×2) External devices and air conditioner PCB. (Set UTD-ECS5A connect kit of 6) (×1) (×2) Thermo-sensor for sensing the Remote sensor UTY-XSZX temperature of arbitrary place in the unit room.
  • Page 36 - 32 - 11-2. Others 11. Optional parts...

  • Page 37: Part 2. Outdoor Unit

    Part 2. OUTDOOR UNIT SINGLE TYPE: AOYG45KBTB AOYG54KBTB...

  • Page 38: Specifications

    1. Specifications Type Inverter heat pump Model name AOYG45KBTB AOYG54KBTB Power supply 230 V ~ 50 Hz Power supply intake Outdoor unit Available voltage range 198—264 V Starting current 18.2 19.5 Cooling 4,450 4,450 Airflow rate Heating 4,450 4,450 Type × Q'ty Propeller ×...

  • Page 39: Dimensions

    2. Dimensions 2-1. Models: AOYG45KBTB and AOYG54KBTB Unit: mm 35.7 Top view 3 Way valve (Liquid) 3 Way valve (Gas) 129.1 Pipe port Ф28 Ф28 85.3 Cable port Ф28: Cable port Pipe port Cable port Pipe port Pipe port Pipe port Front view Side view Rear view...

  • Page 40: Installation Space

    3. Installation space 3-1. Models: AOYG45KBTB and AOYG54KBTB ¢ Space requirement Provide sufficient installation space for product safety.  Single outdoor unit installation • When the upper space is open: Unit: mm When there are obstacles at the rear only. When there are obstacles at the rear and sides.
  • Page 41  Multiple outdoor unit installation • When the upper space is open: Unit: mm When there are obstacles at the rear only. When there are obstacles at the front only. 1,500 or more 250 or more or more When there are obstacles at the front and rear.
  • Page 42  Outdoor unit installation in multi-row Unit: mm Single parallel unit arrangement Multiple parallel unit arrangement 150 or more 500 or more 3,000 or more 3,500 or more 600 or more 600 or more 1,500 or more 1,500 or more 250 or more 1,500 or more 500 or more...

  • Page 43: Refrigerant Circuit

    4. Refrigerant circuit 4-1. Models: AOYG45KBTB and AOYG54KBTB Heat exchanger 3-Way ( INDOOR ) valve 2-Way valve Pressure switch Pressure sensor 4-Way valve Strainer Expansion valve Heat exchanger Strainer ( OUTDOOR ) : Cooling : Heating : Thermistor (Compressor temperature) : Thermistor (Discharge temperature) : Thermistor (Outdoor temperature) : Thermistor (Heat Exchanger Out temperature)

  • Page 44: Wiring Diagrams

    5. Wiring diagrams 5-1. Models: AOYG45KBTB and AOYG54KBTB - 40 - 5-1. Models: AOYG45KBTB and AOYG54KBTB 5. Wiring diagrams...

  • Page 45: 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: AOYG45KBTB and AOYG54KBTB NOTE: Values mentioned in the table are calculated based on the maximum capacity.

  • Page 46: Additional Charge Calculation

    7. Additional charge calculation 7-1. Models: AOYG45KBTB and AOYG54KBTB Refrigerant type Refrigerant amount 2,700 ¢ Refrigerant charge Total pipe length 30 or less 50 (Max.) 40 g/m Additional charge amount - 42 - 7-1. Models: AOYG45KBTB and AOYG54KBTB 7. Additional charge calculation...

  • Page 47: Airflow

    8. Airflow 8-1. Models: AOYG45KBTB and AOYG54KBTB  Cooling 4,450 1,236 2,619  Heating 4,450 1,236 2,619 - 43 - 8-1. Models: AOYG45KBTB and AOYG54KBTB 8. Airflow...

  • Page 48: Operation Noise (Sound Pressure)

    9. Operation noise (sound pressure) 9-1. Noise level curve ¢ Model: AOYG45KBTB  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 49: Sound Level Check Point

    9-2. Sound level check point Microphone Microphone Front 1.5 m Airflow Side view Front view NOTE: Detailed shape of the actual outdoor unit might be slightly different from the one illustrated above. - 45 - 9-2. Sound level check point 9.

  • Page 50: Electrical Characteristics

    10. Electrical characteristics Model name AOYG45KBTB AOYG54KBTB Voltage 230 ~ Power supply Frequency Max operating current *1 28.5 Starting current 18.2 19.5 Circuit breaker current Power cable Wiring spec. *2 Cross-sectional area Connection cable *3 Limited wiring length *1: Maximum current is the total current of the indoor unit and the outdoor unit. *2: Selected sample based on Japan Electrotechnical Standards and Codes Committee E0005.

  • Page 51: Safety Devices

    11. Safety devices Model Type of Protection form AOYG45KBTB protection AOYG54KBTB 250 V, 30 A or 35.5 A Circuit Current fuse 250 V, 3.15 A protection (Main PCB) 250 V, 10 A × 2 150 ±15 °C Activate Fan motor stop Fan motor Thermal protection program protection...

  • Page 52: External Input And Output

    12. External input and output With using external input and output functions, this product can be operated inter-connectedly with an external device. Connector Input Output Remarks P580 Low noise mode — PA580 Peak cut mode — See external input/output settings for details.
  • Page 53 ¢ Peak cut mode By performing following on-site work, operation that suppresses the current value can be enabled: The air conditioner is set to the “Peak cut mode” when closing the contact input of a commercial timer or on/off switch to a connector on the control PCB of the outdoor unit. •...

  • Page 54: 12-2.External Output

    12-2. External output With using external output function, some status signals are transmitted to the control PCB, and the related LED lamp indicates the status of this product. ¢ Error status output Signal on air conditioner error status is generated when a malfunction occurs. •...
  • Page 55 ¢ Compressor status output Signal on compressor operation status is generated when the compressor is running. • Circuit diagram example • Output voltage (Vcc): DC 12 V Outdoor unit 50 mA or less control PCB Connected unit (Locally purchased) • *: Make the distance from the Example: Connector Example: Fan...

  • Page 56: Function Settings

    13. Function settings Perform appropriate function setting locally according to the installation environment. NOTE: Incorrect settings can cause a product malfunction. CAUTION • Before setting up the switch buttons, discharge the static electricity from your body. • Never touch the terminals or the patterns on the parts that are mounted on the PCB. 13-1.
  • Page 57 ¢ Switch buttons and the functions LED lamps S134 S133 S132 S131 S130 Switch buttons LED lamp Function or operation method Lights on while power on. (1) POWER/MODE Green Local setting in outdoor unit or error code is displayed with blink. (2) ERROR Blinks during error operation.

  • Page 58: 13-2.Local Setting Procedure

    13-2. Local setting procedure NOTE: Before performing the function setting, be sure to stop the operation of the air conditioner. ¢ Low noise mode Press the MODE switch button (S134) for 3 seconds or more to switch to “Local setting mode”. After confirming the LED lamp of POWER/MODE blinks 9 times, press the ENTER switch but- ton (S132).
  • Page 59 ¢ Peak cut mode Press the MODE switch button (S134) for 3 seconds or more to switch to “Local setting mode”. After confirming the LED lamp of POWER/MODE blinks 9 times, press the ENTER switch but- ton (S132). PUMP POWER LOW NOISE PEAK CUT DOWN...

  • Page 60: Accessories

    14. Accessories 14-1. Models: AOYG45KBTB and AOYG54KBTB Part name Exterior Q’ty Part name Exterior Q’ty Installation manual Drain cap Drain pipe One-touch bush - 56 - 14-1. Models: AOYG45KBTB and AOYG54KBTB 14. Accessories...

  • Page 61: Optional Parts

    15. Optional parts Exterior Part name Model name Summary Use to operate the external input and External UTY-XWZXZ3 output functions of outdoor unit. connect kit - 57 - 15. Optional parts...

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