Fujitsu AUYG18LVLB Design & Technical Manual
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Fujitsu AUYG18LVLB Design & Technical Manual

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AIR CONDITIONER
Cassette type
DESIGN & TECHNICAL MANUAL
INDOOR
OUTDOOR
AUYG18LVLB
AUYG24LVLA
AOYG18LBCB
AOYG24LBCB
DR_AU012EF_01
2018.01.25

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Summary of Contents for Fujitsu AUYG18LVLB

  • Page 1 AIR CONDITIONER Cassette type DESIGN & TECHNICAL MANUAL INDOOR AUYG18LVLB AUYG24LVLA OUTDOOR AOYG18LBCB AOYG24LBCB DR_AU012EF_01 2018.01.25...
  • 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 Fujitsu General Limited. All rights reserved.

  • Page 3: Table Of Contents

    CONTENTS Part 1. INDOOR UNIT............... 1 1. Specifications.................... 2 2. Dimensions....................4 2-1. Models: AUYG18LVLB and AUYG24LVLA..............4 2-2. Installation space requirement ..................5 3. Wiring diagram ..................6 3-1. Models: AUYG18LVLB and AUYG24LVLA..............6 4. Capacity table.................... 7 4-1. Cooling capacity......................7 4-2.
  • Page 4 CONTENTS (continued) Part 2. OUTDOOR UNIT..............37 1. Specifications..................38 2. Dimensions....................39 2-1. Model: AOYG18LBCB ....................39 2-2. Model: AOYG24LBCB ....................39 3. Installation space ..................40 3-1. Models: AOYG18LBCB and AOYG24LBCB ............. 40 4. Refrigerant circuit ................... 43 4-1.

  • Page 5: Part 1. Indoor Unit

    Part 1. INDOOR UNIT CASSETTE TYPE: AUYG18LVLB AUYG24LVLA...

  • Page 6: Specifications

    1. Specifications Cassette Type Inverter heat pump Model name AUYG18LVLB AUYG24LVLA Power supply 230 V ~ 50 Hz Available voltage range 198—264 V 5.20 6.80 Rated Btu/h 17,700 23,200 Cooling 0.90 - 5.90 0.90 - 8.00 Min.—Max. Btu/h 3,100 - 20,100...
  • Page 7 Model name AUYG18LVLB AUYG24LVLA Cooling Energy efficiency class Heating (Average) Cooling 5.2 (35°C) 6.8 (35°C) Pdesign Heating (Average) 5.2 (-10°C) 6.0 (-10°C) SEER Cooling 6.20 5.60 kWh/kWh SCOP Heating (Average) 4.20 3.90 Annual energy consumption kWh/a QHE (Average) 1,732 2,151...

  • Page 8: Dimensions

    2. Dimensions 2-1. Models: AUYG18LVLB and AUYG24LVLA Unit: mm • Cassette grille mounting state 530: Hanging bolt position op view Be sure to leave Service access service access for future service at the designated position. Min. 450 Drain port Drain port...

  • Page 9: Installation Space Requirement

    2-2. Installation space requirement Unit: mm Strong and durable ceiling or more 1,000 1,000 or more or more 1,800 or more Obstruction Floor Maximum height from floor to ceiling (Unit: mm) Standard 2,700 High ceiling 3,000 3-way direction setting: Unit: mm 100 or more* NOTES: •...

  • Page 10: Wiring Diagram

    3. Wiring diagram 3-1. Models: AUYG18LVLB and AUYG24LVLA - 6 -...

  • Page 11: 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: AUYG18LVLB Indoor temperature °CDB °CWB °CDB...

  • Page 12: Heating Capacity

    4-2. Heating capacity NOTE: Values mentioned in the table are calculated based on the maximum capacity. ¢ Model: AUYG18LVLB Indoor temperature °CDB °CDB °CWB 5.01 2.50 4.89 2.55 4.77 2.60 4.65 2.65 4.53 2.71 5.76 2.61 5.62 2.67 5.49 2.72 5.35...

  • Page 13: Fan Performance

    5. Fan performance 5-1. Air velocity distributions ¢ Model: AUYG18LVLB Fan speed Operation mode Ceiling mode Measuring conditions HIGH STANDARD Unit : m/s 0.25 Top view Vertical airflow direction louver: Upward 0.25 0.25 0.25 4 (m) Unit : m/s Side view Vertical airflow direction louver: Upward 0.25...
  • Page 14 ¢ Model: AUYG18LVLB Fan speed Operation mode Ceiling mode Measuring conditions HIGH STANDARD Unit : m/s 0.25 Top view Vertical airflow direction louver: Upward 0.25 0.25 Unit : m/s Side view Vertical airflow direction louver: Upward 0.25 0.25 Unit : m/s...
  • Page 15 ¢ Model: AUYG24LVLA Fan speed Operation mode Ceiling mode Measuring conditions HIGH STANDARD Unit : m/s 0.25 Top view Vertical airflow direction louver: Upward 0.25 0.25 0.25 Unit : m/s Side view Vertical airflow direction louver: Upward 0.25 0.25 Unit : m/s Side view Vertical airflow direction louver: Downward 0.25...
  • Page 16 ¢ Model: AUYG24LVLA Fan speed Operation mode Ceiling mode Measuring conditions HIGH STANDARD Unit : m/s 0.25 Top view Vertical airflow direction louver: Upward 0.25 0.25 Unit : m/s Side view Vertical airflow direction louver: Upward 0.25 0.25 Unit : m/s Side view Vertical airflow direction louver: Downward 0.25...

  • Page 17: Airflow

    5-2. Airflow ¢ Model: AUYG18LVLB  Cooling Fan speed Airflow HIGH QUIET  Heating Fan speed Airflow HIGH QUIET - 13 -...
  • Page 18 ¢ Model: AUYG24LVLA  Cooling Fan speed Airflow HIGH QUIET  Heating Fan speed Airflow HIGH QUIET - 14 -...

  • Page 19: Operation Noise (Sound Pressure)

    6. Operation noise (sound pressure) 6-1. Noise level curve Ceiling height Outlet directions Measuring conditions Standard 4-way air outlet ¢ Model: AUYG18LVLB  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...

  • Page 20: Sound Level Check Point

    6-2. Sound level check point Microphone 1.5 m Microphone - 16 -...

  • Page 21: Safety Devices

    7. Safety devices Model Type of protection Protection form AUYG18LVLB,AUYG24LVLA Circuit protection Current fuse (PCB*) 250 V, 3.15 A 100 ± 10 °C Activate Fan motor stop Fan motor protection Thermal protection program 95 ± 10 °C Reset Fan motor restart...

  • Page 22: External Input And Output

    8. External input and output Connector Input Output Remarks CN102 Control input (Operation/Stop) — See external input/output CN103 — Operation status output settings for details. — Fresh-air control output 8-1. External input • “Operation/Stop” mode or "Forced stop" mode can be selected with function setting of indoor unit.
  • Page 23  Circuit diagram example • Contact capacity: DC 24 V or more, 10 mA or Indoor unit more. Connected unit control PCB • *: Make the distance from the PCB to the con- Connector Example: Switch nected unit within 10 m. •...

  • Page 24: External Output

    8-2. External output With using external output function, operating status of this product can be transmitted to the ex- ternal device, and also, this product can be inter-connected with the external device. ¢ Operation status output Air conditioner operation status signal can be output. ...

  • Page 25: Fresh-Air Control Output

    8-3. 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: Remote Controller

    9. Remote controller 9-1. Overview a FAN button Selects the fan speed (AUTO, HIGH, MED, LOW, and QUIET). b START/STOP button Starts and stops operation. c SET button (vertical) Adjusts the vertical airflow direction. d SWING button Sets the automatic swing operation and selects swing mode (Up/down, Left/right, Up/down/left/right, and Stop swing).

  • Page 27: Specifications

    9-2. Specifications  Controller Unit: mm Top view Front view Side view Rear view Size (H × W × D) 170 × 56 × 19 Weight 85 (without batteries) - 23 -...
  • Page 28  Holder Unit: mm 60.4 30.2 Ø 3.5 (hole) 3.5 x 6.5 (hole) 26.2 Front view Side view Bottom view Size (H × W × D) 154.7 × 60.4 × 26.2 Weight - 24 -...

  • Page 29: Function Settings

    10. 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. 10-1. Function settings on indoor unit By using some components on the PC board, you can change the function settings. Related components on the PC board and the applicable settings Component Setting content...

  • Page 30: 10-2.Function Settings By Using Remote Controller

    ¢ DIP switch setting • Remote controller address setting When operating a number of indoor units by using a wired remote controller, DIP switch setting 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 31 1. Press the SET TEMP. ( ) buttons to change the custom code between → → → . Match the code on the display to the air conditioner custom code. (Initially set to .) If the custom code does not need to be selected, press the MODE button, and proceed to STEP 2.
  • Page 32 STEP 2: Selecting the function number and setting value 1. Press the SET TEMP. ( ) buttons to select the function Function number number. To switch between the left and right digits, press the MODE button. 2. Press the FAN button to proceed the setting value. To return the function number selection, press the FAN button again.
  • Page 33 ¢ 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 34 4) Room temperature sensor control for cooling 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 35 9) External input control "Operation/Stop" mode or "Forced stop" mode can be selected. Function number Setting value Setting description Factory setting Operation/Stop mode ♦ (Setting prohibited) Forced stop mode 10) 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.
  • Page 36 ¢ Custom code setting for wireless remote controller To interconnect the air conditioner and the wireless remote controller, assignment of the custom code for the wireless remote controller is required. NOTE: Air conditioner cannot receive a custom code if the air conditioner has not been set for the custom code.

  • Page 37: Accessories

    11. Accessories 11-1. Models: AUYG18LVLB and AUYG24LVLA Part name Exterior Q’ty Part name Exterior Q’ty Operating manual Hose band Installation manual Drain hose insulation Coupler heat insulation Remote controller (Large) Coupler heat insulation Battery (Small) Special nut A (Large Remote controller...

  • Page 38: Optional Parts

    12. Optional parts 12-1. Controllers Exterior Part name Model name Summary Large and full-dot liquid crystal Wired remote screen, wide and large keys easy to UTY-RVNYM controller press, user-intuitive arrow key. Wire type: Polar 3-wire Room temperature can be controlled by detecting the temperature Wired remote UTY-RNNYM...

  • Page 39: 12-2.Cassette Grille

    12-2. Cassette grille Exterior Part name Model name Summary The form of grille discharges wind Cassette grille UTG-UFYD-W away from the ceiling making it difficult to leave dirt marks. 12-3. Others Exterior Part name Model name Summary Use to connect with various External UTY-XWZX peripheral devices and air conditioner...
  • Page 40 - 36 -...

  • Page 41: Part 2. Outdoor Unit

    Part 2. OUTDOOR UNIT SINGLE TYPE: AOYG18LBCB AOYG24LBCB...

  • Page 42: Specifications

    1. Specifications Type Inverter heat pump Model name AOYG18LBCB AOYG24LBCB Power supply 230 V ~ 50 Hz Available voltage range 198—264 V Starting current Cooling 2,380 2,850 Airflow rate Heating 2,080 2,700 Type × Q'ty Propeller × 1 Motor output Cooling Sound pressure level *1 dB (A)

  • Page 43: Dimensions

    2. Dimensions 2-1. Model: AOYG18LBCB Unit: mm Pitch of bolts for installation Top view Side view Front view Side view 2-2. Model: AOYG24LBCB Unit: mm Pitch of bolts for installation Top view Side view Front view Side view - 39 -...

  • Page 44: Installation Space

    3. Installation space 3-1. Models: AOYG18LBCB and AOYG24LBCB ¢ 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 45  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 example “When an obstruction in the upper space:”.
  • Page 46  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 47: Refrigerant Circuit

    4. Refrigerant circuit 4-1. Model: AOYG18LBCB Heat exchanger 3-way (INDOOR) valve 2-way Muffler valve Muffler 4-way valve Strainer Expansion valve Accumulator Heat exchanger Strainer (OUTDOOR) Cooling Heating : Thermistor (Discharge temperature) : Thermistor (Outdoor temperature) : Thermistor (Heat exchanger out temperature) : Thermistor (Room temperature) - 43 -...

  • Page 48: Model: Aoyg24Lbcb

    4-2. Model: AOYG24LBCB Heat exchanger 3-way (INDOOR) valve 2-way Muffler valve Muffler Receiver 4-way valve Strainer Expansion valve Accumulator Heat exchanger Strainer (OUTDOOR) Cooling Heating : Thermistor (Discharge temperature) : Thermistor (Outdoor temperature) : Thermistor (Heat exchanger out temperature) : Thermistor (Room temperature) - 44 -...

  • Page 49: Wiring Diagrams

    5. Wiring diagrams 5-1. Model: AOYG18LBCB - 45 -...

  • Page 50: Model: Aoyg24Lbcb

    5-2. Model: AOYG24LBCB - 46 -...

  • Page 51: 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: AOYG18LBCB NOTE: Values mentioned in the table are calculated based on the maximum capacity.

  • Page 52: Model: Aoyg24Lbcb

    6-2. Model: AOYG24LBCB NOTE: Values mentioned in the table are calculated based on the maximum capacity. Pipe length (m) COOLING — — — — 0.963 0.961 0.959 — — 0.984 0.981 0.979 0.977 0.975 Indoor unit is higher than outdoor unit *1 —...

  • Page 53: Additional Charge Calculation

    7. Additional charge calculation 7-1. Model: AOYG18LBCB Refrigerant type R410A Refrigerant amount 1,200 ¢ Refrigerant charge Total pipe length 15 or less 25 (Max.) 20 g/m Additional charge 7-2. Model: AOYG24LBCB Refrigerant type R410A Refrigerant amount 1,500 ¢ Refrigerant charge Total pipe length 15 or less 30 (Max.)

  • Page 54: Airflow

    8. Airflow 8-1. Model: AOYG18LBCB  Cooling 2,380 1,401  Heating 2,080 1,224 8-2. Model: AOYG24LBCB  Cooling 2,850 1,677  Heating 2,700 1,589 - 50 -...

  • Page 55: Operation Noise (Sound Pressure)

    9. Operation noise (sound pressure) 9-1. Noise level curve ¢ Model: AOYG18LBCB  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 56: 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 illustrat- ed above. - 52 -...

  • Page 57: Electrical Characteristics

    10. Electrical characteristics Model name AOYG18LBCB AOYG24LBCB Voltage 230 ~ Power supply Frequency Max operating current *1 13.5 15.7 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 58: Safety Devices

    11. Safety devices Model Type of Protection form protection AOYG18LBCB AOYG24LBCB 250 V, 25 A 250 V, 25 A Circuit protection Current fuse (Main PCB) 250 V, 5 A 250 V, 5 A 250 V, 3.15 A 250 V, 3.15 A 125±10 °C 125±10 °C Activate...

  • Page 59: Accessories

    12. Accessories 12-1. Models: AOYG18LBCB and AOYG24LBCB Part name Exterior Q’ty Part name Exterior Q’ty Installation manual Drain pipe - 55 -...

This manual is also suitable for:

Auyg24lvlaAoyg18lbcbAoyg24lbcb

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