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Fujitsu Cassette AUXG18KRLB Design & Technical Manual

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AIR CONDITIONER
Cassette type
DESIGN & TECHNICAL MANUAL
INDOOR
OUTDOOR
AUXG18KRLB
AUXG22KRLB
AOYG18KATA
AOYG22KATA
DR_AU028EF_01
2019.06.28

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  Summary of Contents for Fujitsu Cassette AUXG18KRLB

  • Page 1 AIR CONDITIONER Cassette type DESIGN & TECHNICAL MANUAL INDOOR AUXG18KRLB AUXG22KRLB OUTDOOR AOYG18KATA AOYG22KATA DR_AU028EF_01 2019.06.28...
  • Page 2 • Product specifications and design are subject to change without notice for future improvement. • For further details, please check with our authorized dealer. Trademarks ™ FGLair is trademark of Fujitsu General Limited in the United States, other countries or both. ™ Google Play is trademark of Google Inc. ®...
  • Page 3: Table Of Contents

    CONTENTS Part 1. INDOOR UNIT................1 1. Specifications....................2 2. Dimensions....................4 2-1. Models: AUXG18KRLB and AUXG22KRLB ..............4 2-2. Installation space requirement ..................5 3. Wiring diagram ....................7 3-1. Models: AUXG18KRLB and AUXG22KRLB ..............7 4. Capacity table....................8 4-1. Cooling capacity.......................8 4-2. Heating capacity ......................9 5.
  • Page 4 CONTENTS (continued) Part 2. OUTDOOR UNIT..............45 1. Specifications....................46 2. Dimensions....................47 2-1. Model: AOYG18KATA ....................47 2-2. Model: AOYG22KATA ....................48 3. Installation space ..................49 3-1. Models: AUXG18KRLB and AUXG22KRLB ..............49 4. Refrigerant circuit ..................52 4-1. Model: AOYG18KATA ....................52 4-2. Model: AOYG22KATA ....................53 5.
  • Page 5: Part 1. Indoor Unit

    Part 1. INDOOR UNIT CASSETTE TYPE: AUXG18KRLB AUXG22KRLB...
  • Page 6: Specifications

    1. Specifications Cassette Type Inverter heat pump Model name AUXG18KRLB AUXG22KRLB Power supply 230 V ~ 50 Hz Power supply intake Outdoor unit Available voltage range 198—264 V Rated Btu/h 17,700 20,500 Cooling 0.90—5.40 0.90—6.30 Min.—Max. Btu/h 3,100—18,400 3,100—21,400 Capacity Rated Btu/h 20,500...
  • Page 7 Specifications for ErP Lot10 Model name AUXG18KRLB AUXG22KRLB Cooling Energy efficiency class Heating (Average) Cooling 5.2 (35°C) 6.0 (35°C) Pdesign Heating (Average) 3.8 (-10°C) 4.4 (-10°C) SEER Cooling 6.20 6.20 kWh/kWh SCOP Heating (Average) 4.10 4.10 Annual energy consumption kWh/a QHE (Average) 1,297 1,502...
  • Page 8: Dimensions

    2. Dimensions 2-1. Models: AUXG18KRLB and AUXG22KRLB Unit: mm Hanging bolt position Drain hose View A Ceiling Wire hole Fresh air inlet (cut out) Ø95 View B View C 4 × Ø3.2 hole - 4 - 2-1. Models: AUXG18KRLB and AUXG22KRLB 2.
  • Page 9: Installation Space Requirement

    2-2. Installation space requirement Provide sufficient installation space for product safety. For 4-direction setting: Unit: mm Strong and durable ceiling 256 or more 1,500 3,000 or more or more Ceiling height Ceiling mode* “Low” : 2.7 m or less Ceiling mode “Standard” : up to 3.0 m Obstruction Ceiling mode “High”...
  • Page 10 Human sensor (Option) Top view Drain Refrigerant pipe pipe Human sensor Example of sensitivity range: When the installation height gets higher, the temperature sensitivity decreases. Unit: mm 3,200 8,800 Ceiling height 3,200 mm Equal sensitivity range of temperature Detecting position 800 mm from floor surface CAUTION Do not place large objects near the human sensor.
  • Page 11: Wiring Diagram

    3. Wiring diagram 3-1. Models: AUXG18KRLB and AUXG22KRLB - 7 - 3-1. Models: AUXG18KRLB and AUXG22KRLB 3. Wiring diagram...
  • Page 12: Capacity Table

    4. Capacity table Capacity tables show each of following values calculated based on the outdoor temperature and the indoor temperature, under given 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.
  • Page 13: Heating Capacity

    4-2. Heating capacity NOTE: Values mentioned in the table are calculated based on the maximum capacity. ¢ Model: AUXG18KRLB 1,050 Indoor temperature °CDB °CDB °CWB 3.86 1.10 3.77 1.13 3.68 1.15 3.59 1.17 3.50 1.20 4.39 1.17 4.28 1.20 4.18 1.22 4.08 1.24...
  • Page 14: Fan Performance

    5. Fan performance 5-1. Air velocity distributions ¢ Model: AUXG18KRLB (4-way air outlet) Fan speed Operation mode Measuring conditions HIGH Unit: m/s 0.25 Top view 0.25 Vertical airflow direction louver: position 1 Unit: m/s 0.25 0.25 Side view Vertical airflow direction louver: position 1 Unit: m/s Side view Vertical airflow direction louver: position 2...
  • Page 15 ¢ Model: AUXG22KRLB (4-way air outlet) Fan speed Operation mode Measuring conditions HIGH Unit: m/s 0.25 Top view 0.25 Vertical airflow direction louver: position 1 Unit: m/s 0.25 0.25 Side view Vertical airflow direction louver: position 1 Unit: m/s Side view Vertical airflow direction louver: position 2 0.25 0.25...
  • Page 16 ¢ Model: AUXG18KRLB (3-way air outlet) Fan speed Operation mode Measuring conditions HIGH Unit: m/s Top view 0.25 Vertical airflow direction louver: position 1 0.25 Unit: m/s 0.25 0.25 Side view Vertical airflow direction louver: position 1 Unit: m/s Side view Vertical airflow direction louver: position 2 0.25 0.25...
  • Page 17 ¢ Model: AUXG22KRLB (3-way air outlet) Fan speed Operation mode Measuring conditions HIGH Unit: m/s Top view 0.25 Vertical airflow direction louver: position 1 0.25 Unit: m/s 0.25 0.25 Side view Vertical airflow direction louver: position 1 Unit: m/s Side view Vertical airflow direction louver: position 2 0.25 0.25...
  • Page 18: Airflow

    5-2. Airflow ¢ Models: AUXG18KRLB and AUXG22KRLB (4-way air outlet)  Cooling/Heating Fan speed Airflow 1,050 HIGH QUIET ¢ Models: AUXG18KRLB and AUXG22KRLB (3-way air outlet)  Cooling/Heating Fan speed Airflow HIGH QUIET - 14 - 5-2. Airflow 5. Fan performance...
  • Page 19: Fresh-Air Characteristics

    5-3. Fresh-air characteristics ¢ Airflow volume: static pressure of fresh-air intake characteris- tics Duct (inside diameter: ø 95 mm) Duct fan Static pressure required to take in fresh-air Airflow (m ¢ Installation Flexible duct *2 Fan *2 Flexible duct *2 Duct flange *2 Fresh-air inlet position Insulation *1...
  • Page 20: Duct Connection

    5-4. Duct connection ¢ Outlet air Duct (inside size: 350 mm    100 mm)  Models: AUXG18KRLB and AUXG22KRLB Fan Speed Quiet 1-way Fan Speed Fan Speed Fan Speed High 1-way Quiet 2-way High 2-way L= 10 m L= 5 m L= 1 m Airflow (m /min)
  • Page 21 ¢ Precautions on air-outlet duct connection • 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 22: Operation Noise (Sound Pressure)

    6. Operation noise (sound pressure) 6-1. Noise level curve ¢ Models: AUXG18KRLB and AUXG22KRLB  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 NC-20 NC-20 QUIET QUIET NC-15...
  • Page 23: Sound Level Check Point

    6-2. Sound level check point Microphone 1.5 m Microphone - 19 - 6-2. Sound level check point 6. Operation noise (sound pressure)
  • Page 24: Safety Devices

    7. Safety devices Model Type of protection Protection form AUXG18KRLB AUXG22KRLB Circuit protection Current fuse (PCB*) 250 V, 3.15 A 125 ± 10 °C Activate Fan motor stop Thermal protection Fan motor protection program 120 ± 10 °C Reset Fan motor restart *: Printed Circuit Board - 20 - 7.
  • Page 25: 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 26: External Input

    8-1. External input • “Operation/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 27: 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 25 m. •...
  • Page 28: 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 29 ¢ 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 30: 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 31  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 32  When function setting is "Operation/Stop" mode 2 • In the case of "Edge" input Rotary SW of Function External input and External input Input signal Command setting / output PCB Off → On Operation Input of indoor unit Terminal Stop (R.C.
  • Page 33 ¢ Forced thermostat off function Function Rotary SW of External External input Input signal Command setting / input and output PCB 60-00 / 2 Off → On Thermostat off 60-09 / B External input and output Input 1 60-10 / C Normal On →...
  • Page 34 ¢ 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 Off → On Error 60-00 / 2 Output 1 On →...
  • Page 35 ¢ External heater output Function Rotary SW of External External output Output signal Command setting / input and output PCB Low → High Heater on 60-11 / D Output of indoor unit CN47 High → Low Heater off 60-00 / 2 Off →...
  • Page 36: 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 37 ¢ 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 38: 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 39 2) Ceiling height Select the appropriate ceiling height according to the place of installation. Function number Setting value Setting description Factory setting Standard ♦ High ceiling Low ceiling For the specific height for each setting value, refer to “Installation space” in Chapter 2. "Dimensions"...
  • Page 40 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 correction values show the difference from the Standard setting "00" (manufactur- er’s recommended value).
  • Page 41 7) Auto restart Enables or disables automatic restart after a power interruption. Function number Setting value Setting description Factory setting Enable ♦ Disable NOTE: Auto restart is an emergency function such as for power outage etc. Do not attempt to use this function in normal operation.
  • Page 42 12) 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 43: Accessories

    10. Accessories 10-1. Models: AUXG18KRLB and AUXG22KRLB Part name Exterior Q’ty Part name Exterior Q’ty Operating manual Insulation Operating manual Drain hose (CD-ROM) Installation manual Hose band Drain hose heat Template (Carton top) insulation Washer Cable tie (large) Coupler heat insulation Cable tie (small) (large) Coupler heat insulation...
  • Page 44: Optional Parts

    11. Optional parts 11-1. Controllers Exterior Part name Model name Summary Easy finger touch operation with LCD Wired remote panel. Backlit LCD enables easy UTY-RNRYZ* controller operation in a dark room. Wire type: Non-polar 2-wire High visibility and easy operation. Room temperature can be accurately Wired remote controlled using the built-in thermo...
  • Page 45: 11-2.Cassette Grille

    Exterior Part name Model name Summary IR receiver kit with wireless Unit control is performed by wireless UTY-LBTYC remote remote controller. controller NOTE: Available functions may differ by the remote controller. For details, refer to the operation manual. 11-2. Cassette grille Exterior Part name Model name...
  • Page 46: 11-3.Others

    11-3. Others Exterior Part name Model name Summary Human sensor UTY-SHZXC For circular flow cassette type. 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-YDZK plate directions mode is performed.
  • Page 47 Exterior Part name Model name Summary Remotely manage an air conditioning system using mobile devices such as Wireless LAN UTY-TFSXZ1 smartphones and tablets. adapter For connection indoor unit with UART interface. For connection between indoor unit Modbus UTY-VMSX with UART interface and a Modbus converter open network.
  • Page 48 - 44 - 11-3. Others 11. Optional parts...
  • Page 49: Part 2. Outdoor Unit

    Part 2. OUTDOOR UNIT SINGLE TYPE: AOYG18KATA AOYG22KATA...
  • Page 50: Specifications

    1. Specifications Type Inverter heat pump Model name AOYG18KATA AOYG22KATA Power supply 230 V ~ 50 Hz Available voltage range 198—264 V Starting current Cooling 1,710 2,240 Airflow rate Heating 1,840 2,240 Type × Q'ty Propeller fan × 1 Motor output Cooling Sound pressure level *1 dB (A)
  • Page 51: Dimensions

    2. Dimensions 2-1. Model: AOYG18KATA Unit: mm 4-M10 hole Pitch of bolts for installation Top view Side view Front view Side view Airflow Drain port Ø42 Bottom view Side view (Valve part) - 47 - 2-1. Model: AOYG18KATA 2. Dimensions...
  • Page 52: Model: Aoyg22Kata

    2-2. Model: AOYG22KATA Unit: mm 4-M10 hole Pitch of bolts for installation Top view Side view Front view Side view Airflow Drain port Ø42 Bottom view Side view (Valve part) - 48 - 2-2. Model: AOYG22KATA 2. Dimensions...
  • Page 53: Installation Space

    3. Installation space 3-1. Models: AUXG18KRLB and AUXG22KRLB ¢ Space requirement Provide sufficient installation space for product safety. CAUTION Keep the space shown in the installation examples. If the installation is not performed accordingly, it could cause a short circuit and result in a lack of operating performance.
  • Page 54  Multiple outdoor unit installation • Provide at least 250 mm of space between the outdoor units if multiple units are installed. • When routing the piping from the side of an outdoor unit, provide space for piping. • No more than 3 units must be installed side by side. When 3 units or more are arranged in a line, provide the space as shown in the following ex- ample “When an obstruction in the upper space:”.
  • Page 55  Outdoor units installation in multi-row Unit: mm Single parallel unit arrangement Multiple parallel unit arrangement 100 or more 200 or more 1,000 or more 2,000 or more 200 or more 400 or more 500 or more 1,000 or more 200 or more 250 or more 1,000 or more...
  • Page 56: Refrigerant Circuit

    4. Refrigerant circuit 4-1. Model: AOYG18KATA Heat exchanger 3-way (INDOOR) valve 2-way Muffler valve Muffler 4-way valve Strainer Expansion valve Heat exchanger Strainer (OUTDOOR) Cooling Heating : Thermistor (Discharge temperature) : Thermistor (Outdoor temperature) : Thermistor (Heat exchanger out temperature) : Thermistor (Heat exchanger middle temperature) : Thermistor (Room temperature) : Thermistor (Pipe temperature)
  • Page 57: Model: Aoyg22Kata

    4-2. Model: AOYG22KATA Heat exchanger 3-way (INDOOR) valve 2-way valve Muffler Muffler Strainer 4-way valve Expansion valve Accumulator Heat exchanger Strainer (OUTDOOR) Cooling Heating : Thermistor (Discharge temperature) : Thermistor (Outdoor temperature) : Thermistor (Heat exchanger out temperature) : Thermistor (Heat exchanger middle temperature) : Thermistor (Room temperature) : Thermistor (Pipe temperature) - 53 -...
  • Page 58: Wiring Diagrams

    5. Wiring diagrams 5-1. Model: AOYG18KATA - 54 - 5-1. Model: AOYG18KATA 5. Wiring diagrams...
  • Page 59: Model: Aoyg22Kata

    5-2. Model: AOYG22KATA - 55 - 5-2. Model: AOYG22KATA 5. Wiring diagrams...
  • Page 60: Capacity Compensation Rate For Pipe Length And Height Difference

    6. Capacity compensation rate for pipe length and height difference Height difference H Indoor unit is higher than outdoor unit Indoor unit is lower than outdoor unit Outdoor unit Indoor unit Outdoor unit Indoor unit Connection pipe Connection pipe 6-1. Model: AOYG18KATA NOTE: Values mentioned in the table are calculated based on the maximum capacity.
  • Page 61: Model: Aoyg22Kata

    6-2. Model: AOYG22KATA NOTE: Values mentioned in the table are calculated based on the maximum capacity. Pipe length (m) COOLING — — — — 0.932 0.930 — — — 0.953 0.950 0.947 Indoor unit is higher than — — 0.983 0.968 0.966 0.962...
  • Page 62: Additional Charge Calculation

    7. Additional charge calculation 7-1. Model: AOYG18KATA Refrigerant type Refrigerant amount ¢ Refrigerant charge Total pipe length 15 or less 20 (Max.) 20 g/m Additional charge 7-2. Model: AOYG22KATA Refrigerant type Refrigerant amount 1,100 ¢ Refrigerant charge Total pipe length 15 or less 25 (Max.) 20 g/m...
  • Page 63: Airflow

    8. Airflow 8-1. Model: AOYG18KATA  Cooling 1,710 1,007  Heating 1,840 1,083 8-2. Model: AOYG22KATA  Cooling 2,240 1,318  Heating 2,240 1,318 - 59 - 8-1. Model: AOYG18KATA 8. Airflow...
  • Page 64: Operation Noise (Sound Pressure)

    9. Operation noise (sound pressure) 9-1. Noise level curve ¢ Model: AOYG18KATA  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 65: Sound Level Check Point

    9-2. Sound level check point Rear Microphone Microphone Airflow Side view Rear view NOTE: Detailed shape of the actual outdoor unit might be slightly different from the one illustrated above. - 61 - 9-2. Sound level check point 9. Operation noise (sound pressure)
  • Page 66: Electrical Characteristics

    10. Electrical characteristics Model name AOYG18KATA AOYG22KATA Voltage 230 ~ Power supply Frequency Max operating current *1 10.1 11.6 Starting current Circuit breaker current Wiring Power cable spec. Cross-sectional area Connection cable *3 Limited wiring length *1: Maximum operating 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 67: Safety Devices

    11. Safety devices Model Type of Protection form protection AOYG18KATA AOYG22KATA 250 V, 20 A 250 V, 25 A Circuit Current fuse (Main PCB) protection 250 V, 5 A 127 ±5 °C 125 ±10 °C Activate Fan motor stop Fan motor stop Fan motor Terminal protection protection...
  • Page 68: Accessories

    12. Accessories 12-1. Models: AUXG18KRLB and AUXG22KRLB Part name Exterior Q’ty Part name Exterior Q’ty Installation manual Drain pipe - 64 - 12-1. Models: AUXG18KRLB and AUXG22KRLB 12. Accessories...