Fujitsu AR*A18LALU series Service Manual
Fujitsu AR*A18LALU series Service Manual

Fujitsu AR*A18LALU series Service Manual

Indoor unit duct type

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1. DUCT TYPE :
AR A18LALU
AR F18LALU
AR F18LBLU
INDOOR UNIT
R410A
D2D_AR029E/05
2009.04.16

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Summary of Contents for Fujitsu AR*A18LALU series

  • Page 1 R410A INDOOR UNIT 1. DUCT TYPE : AR A18LALU AR F18LALU AR F18LBLU D2D_AR029E/05 2009.04.16...
  • Page 2: Function Setting

    1. FEATURE MODEL : INDOOR UNIT OUTDOOR UNIT AR A18LALU AO A18LACL AO B18LACL AR F18LALU AO A18LALL AO B18LALL AR F18LBLU FEATURES Energy saving (AO A18LACL, AO A18LALL connection model) High energy saving was realized by making the indoor unit and outdoor unit fan motor and compressor all DC and optimal design of the refriger- ant cycle.
  • Page 3 2. REMOTE CONTROLLER WIRED REMOTE CONTROLLER FEATURES Various timer setup (ON / OFF / WEEKLY) are possible. Equipped with weekly timer as standard function. (2 times Start / Stop per day for a week) When setting up a timer, operation mode and a temperature setup can be changed.
  • Page 4: Specification

    FUNCTIONS START/STOP button Pressed to start and stop operation. Set temperature button Selects the setting temperature. Master control button Selects the operating mode(AUTO, HEAT, FAN, COOL, DRY). Fan control button Selects the fan speed (AUTO, QUIET, LOW, MED, HIGH). Economy button Turns the economy efficient mode on and off.
  • Page 5: Specifications

    3. SPECIFICATIONS DUCTED MODEL Type INVERTER HEATPUMP AR A18LALU, AR F18LALU, AR F18LBLU Model name AO A18LACL, AO A18LALL Power source 230V 50Hz Available voltage range 198-264V 50Hz Cooling European energy label Heating 5.20 Rated BTU/h 17700 Cooling 0.90 - 5.90 Min.-Max.
  • Page 6 DUCTED MODEL Type INVERTER HEATPUMP AR A18LALU, AR F18LALU, AR F18LBLU Model name AO B18LACL, AO B18LALL Power source 230V 50Hz Available voltage range 198-264V 50Hz Cooling European energy label Heating 5.20 Rated BTU/h 17700 Cooling 0.90 - 5.70 Min.-Max. BTU/h 3100 - 19500 Capacity...
  • Page 7 4. DIMENSIONS MODEL : AR A18L, AR F18L (Unit : mm) BRACKETS CONTROL BOX AIR FLOW OUTLET DRAIN PORT COUPLING PIPE ASSY Top view 85 75 Front view Side view Refrigerant piping flare connection (Gas) Refrigerant piping flare connection (Liquid) Drain piping connection - (01 - 06) -...
  • Page 8: Mounting Position

    MOUNTING POSITION (Unit : mm) Strong and durable ceiling Indoor unit Left Right side side 100 or more 300 or more Left Right side side (PIPE side) Strong and durable floor 100 or more 300 or more or more or more MAINTENANCE HOLE (Unit : mm) Maintenance hole...
  • Page 9 5. WIRING DIAGRAMS MODEL : AR A18L, AR F18L - (01 - 08) -...
  • Page 10 6. CAPACITY TABLE 6-1. COOLING CAPACITY This table is created using the maximum capacity. MODEL : AR A18L, AR F18L / AO A18L 13.7 Indoor temperature °CDB °CWB °CDB 4.44 3.44 0.35 4.94 3.46 0.35 5.11 3.77 0.35 5.45 3.78 0.36 5.62 4.08 0.36 5.96...
  • Page 11: Heating Capacity

    6-2. HEATING CAPACITY This table is created using the maximum capacity. MODEL : AR A18L, AR F18L / AO A18L 13.7 Indoor temperature °CDB °CDB °CWB 5.06 2.18 4.94 2.22 4.81 2.27 4.69 2.31 4.57 2.36 5.71 2.29 5.58 2.33 5.44 2.38 5.30...
  • Page 12 7. FAN PERFORMANCE AND CAPACITY 7-1. NORMAL MODE MODEL : AR A18L, AR F18L Static pressure (Pa) Quiet Q-h Characteristic curve Quiet 1,000 AIR FLOW (m COOLING 102.0 15.0 14.5 Air temp Capacity 100.0 14.0 13.5 98.0 13.0 12.5 96.0 12.0 11.5 94.0...
  • Page 13 7-2. HIGH STATIC MODE 7-2-1. MODE 1 MODEL : AR A18L, AR F18L Static pressure (Pa) Quiet Q-h Characteristic curve Quiet 1,000 AIR FLOW (m COOLING 102.0 15.0 14.5 Air temp Capacity 100.0 14.0 13.5 98.0 13.0 12.5 96.0 12.0 11.5 94.0 11.0...
  • Page 14 7-2-2. MODE 2 MODEL : AR A18L, AR F18L Static pressure (Pa) Quiet Q-h Characteristic curve Quiet 1,000 AIR FLOW (m COOLING 102.0 15.0 14.5 Air temp Capacity 100.0 14.0 13.5 98.0 13.0 12.5 96.0 12.0 11.5 94.0 11.0 1,000 AIR FLOW (m HEATING 102.0...
  • Page 15 7-2-3. MODE 3 MODEL : AR A18L, AR F18L Static pressure (Pa) Quiet Q-h Characteristic curve Quiet 1,000 AIR FLOW (m COOLING 102.0 15.0 14.5 Air temp Capacity 100.0 14.0 13.5 98.0 13.0 12.5 96.0 12.0 11.5 94.0 11.0 1,000 AIR FLOW (m HEATING 102.0...
  • Page 16 8. OPERATION NOISE Condition 8-1. NOISE LEVEL CURVE Static pressure : 0Pa Static mode : Normal MODEL : AR A18L, AR F18L 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 HIGH HIGH NC-30 NC-30 QUIET...
  • Page 17: Sound Level Check Point

    8-2. SOUND LEVEL CHECK POINT Microphone Microphone - (01 - 16) -...
  • Page 18: Electric Characteristics

    9. ELECTRIC CHARACTERISTICS Model Name AR A18L, AR F18L Voltage Power Supply Frequency Max Operating Current Connection Cable 1.5 - 2.5 *1)Wiring Spec. Limited wiring length *1) Wiring Spec. Selected Sample (Selected based on Japan Electrotechnical Standard and Codes Committee E0005) - (01 - 17) -...
  • Page 19: Safety Devices

    10. SAFETY DEVICES Model Protection form AR A18L, AR F18L Circuit protection Current fuse (PCB) 3.15A 250V 140±20°C OFF Fan motor protection Thermal protection program 110±20°C ON - (01 - 18) -...
  • Page 20: Optional Parts

    11. OPTIONAL PARTS Exterior Parts name Model No. Summary New amenity space can be offered by installing the Remote Sensor UTD-RS100 Remote sensor in the remote controller. Use to connect with various External UTD-ECS5A peripheral devices and air control set conditioner PC board.
  • Page 21: Outdoor Unit

    R410A OUTDOOR UNIT 2. SINGLE TYPE : AO A18LACL AO A18LALL AO A24LACL AO A24LALL D2D_AO004E/04 2008.04.08...
  • Page 22 1. SPECIFICATIONS Type INVERTER HEATPUMP AO A18LACL AO A24LACL Model name AO A18LALL AO A24LALL Power source 230V 50Hz Available voltage range 198-264V 50Hz Starting current 10.0 Cooling 2000 2470 Airflow rate Heating 1910 2470 Type × Q'ty Propeller × 1 Motor output Cooling Sound pressure level...
  • Page 23 2. DIMENSIONS MODELS : AO A18L, AO A24L (Unit : mm) Top view Front view AO A18L AO A24L Side view Air flow Bottom view MOUNTING POSITION When there are obstacles at the When there are obstacles at the When there are obstacles at the back or front sides.
  • Page 24: Refrigerant Circuit

    3. REFRIGERANT CIRCUIT - (02 - 03) -...
  • Page 25: Wiring Diagrams

    4. WIRING DIAGRAMS MODELS : AO A18L, AO A24L - (02 - 04) -...
  • Page 26: Capacity Compensation Rate For Pipe Length And Height Difference

    5. CAPACITY COMPENSATION RATE FOR PIPE LENGTH AND HEIGHT DIFFERENCE MODEL : AO A18L Pipe length (m) COOLING 0.953 0.950 0.947 0.983 0.968 0.966 0.962 Indoor unit is upper 0.988 0.987 0.972 0.970 0.966 than outdoor unit. 0.992 0.992 0.991 0.976 0.974 0.970...
  • Page 27 MODEL : AO A24L Pipe length (m) COOLING 0.963 0.961 0.959 0.984 0.981 0.979 0.977 0.975 Indoor unit is upper 0.988 0.988 0.985 0.983 0.981 0.979 than outdoor unit. 0.992 0.992 0.992 0.989 0.987 0.985 0.983 Height difference H 1.000 1.000 1.000 0.997...
  • Page 28: Additional Charge Calculation

    6. ADDITIONAL CHARGE CALCULATION MODEL : AO A18L R410A Refrigerant type 1250 Refrigerant amount REFRIGERANT CHARGE Pipe length 20g/m Additional charge 0 (Chargeless) +100 +200 MODEL : AO A24L R410A Refrigerant type 1700 Refrigerant amount REFRIGERANT CHARGE Pipe length 20g/m Additional charge 0 (Chargeless) +100...
  • Page 29 7. AIR FLOW MODEL : AO A18L COOLING NUMBER OF ROTATIONS Airflow (r.p.m) 2000 1177 HEATING NUMBER OF ROTATIONS Airflow (r.p.m) 1910 1124 MODEL : AO A24L COOLING NUMBER OF ROTATIONS Airflow (r.p.m) 2470 1050 1454 HEATING NUMBER OF ROTATIONS Airflow (r.p.m) 2470...
  • Page 30 8. OPERATION NOISE 8-1. NOISE LEVEL CURVE COOLING MODEL : AO A18L MODEL : AO A24L 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 31 8-2. SOUND LEVEL CHECK POINT - (02 - 10) -...
  • Page 32 9. ELECTRIC CHARACTERISTICS Model Name AO A18L AO A24L Voltage Power Supply Frequency Max Operating Current 15.0 16.2 Starting Current 10.0 Main Fuse (Circuit breaker) Current *1) Wiring Spec. 3.5 - 4.5 Power Cable *2)Limited wiring length *1) Wiring Spec. Selected Sample (Selected based on Japan Electrotechnical Standard and Codes Committee E0005) *2) Limited Wiring length :...
  • Page 33 10. SAFETY DEVICES Model Protection form AO A18L AO A24L 20A 250V Current fuse (NEAR THE TERMINAL) 5A 250V Circuit protection 15A 250V Current fuse (MAIN PRINTED CIRCUIT BOARD) 3.15A 250V OFF:100 °C OFF:110 °C Fan motor protection Thermal protection program ON:95 °C ON:105...
  • Page 34 R410A OUTDOOR UNIT 2. SINGLE TYPE : AO B18LACL AO B18LALL AO B24LACL AO B24LALL D2D_AO021E/02 2008.04.08...
  • Page 35 1. SPECIFICATIONS Type INVERTER HEATPUMP Model name AO B18LACL AO B24LACL AO B18LALL AO B24LALL Power source 230V ~ 50Hz Available voltage range 198-264V ~ 50Hz Starting current 10.0 Cooling 2000 2470 Airflow rate Heating 1910 2470 Type × Q'ty Propeller ×...
  • Page 36 2. DIMENSIONS MODEL : AO B18L, AO B24L (Unit : mm) Top view Front view AO B18L AO B24L Side view Air flow Bottom view MOUNTING POSITION (Unit : mm) When there are obstacles at the When there are obstacles at the When there are obstacles at the back or front sides.
  • Page 37 3. REFRIGERANT CIRCUIT - (02 - 03) -...
  • Page 38 4. WIRING DIAGRAMS MODEL : AO B18L, AO B24L - (02 - 04) -...
  • Page 39 5. CAPACITY COMPENSATION RATE FOR PIPE LENGTH AND HEIGHT DIFFERENCE MODEL : AO B18L Pipe length (m) COOLING 0.953 0.950 0.947 0.983 0.968 0.966 0.962 Indoor unit is upper 0.988 0.987 0.972 0.970 0.966 than outdoor unit. 0.992 0.992 0.991 0.976 0.974 0.970...
  • Page 40 MODEL : AO B24L Pipe length (m) COOLING 0.963 0.961 0.959 0.984 0.981 0.979 0.977 0.975 Indoor unit is upper 0.988 0.988 0.985 0.983 0.981 0.979 than outdoor unit. 0.992 0.992 0.992 0.989 0.987 0.985 0.983 Height difference H 1.000 1.000 1.000 0.997...
  • Page 41 6. ADDITIONAL CHARGE CALCULATION MODEL : AO B18L R410A Refrigerant type 1250 Refrigerant amount REFRIGERANT CHARGE Pipe length 20g/m Additional charge 0 (Chargeless) +100 +200 MODEL : AO B24L R410A Refrigerant type 1700 Refrigerant amount REFRIGERANT CHARGE Pipe length 20g/m Additional charge 0 (Chargeless) +100...
  • Page 42 7. AIR FLOW MODEL : AO B18L COOLING NUMBER OF ROTATIONS Airflow (r.p.m) 2000 1177 HEATING NUMBER OF ROTATIONS Airflow (r.p.m) 1910 1124 MODEL : AO B24L COOLING NUMBER OF ROTATIONS Airflow (r.p.m) 2470 1050 1454 HEATING NUMBER OF ROTATIONS Airflow (r.p.m) 2470...
  • Page 43 8. OPERATION NOISE 8-1. NOISE LEVEL CURVE MODEL : AO B18L 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...
  • Page 44 8-2. SOUND LEVEL CHECK POINT - (02 - 10) -...
  • Page 45 9. ELECTRIC CHARACTERISTICS Model name AO B18L AO B24L 230 ~ Voltage Power supply Frequency Max. operating current 15.0 16.2 Starting current 10.0 Main fuse (Circuit breaker) current *1) Wiring spec. Power cable *2)Limited wiring length *1) Wiring spec. Selected sample (Selected based on Japan Electrotechnical Standard and Codes Committee E0005) *2) Limited wiring length : This is the wiring length in case voltage descent is less than 2%.
  • Page 46 10. SAFETY DEVICES Model Protection form AO B18L AO B24L 20A 250V Current fuse (NEAR THE TERMINAL) 5A 250V Circuit protection 15A 250V Current fuse (MAIN PRINTED CIRCUIT BOARD) 3.15A 250V OFF:100 °C OFF:110 °C Fan motor protection Thermal protection program ON:95 °C ON:105...

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