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Fujitsu AUU9RLF Design & Technical Manual
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Fujitsu AUU9RLF Design & Technical Manual

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See also: Service Manual , Design & Technical Manual
AIR CONDITIONER
Cassette type
DESIGN & TECHNICAL MANUAL
INDOOR
OUTDOOR
AOU9RLFC
AOU12RLFC
AOU18RLFC
AUU9RLF
AUU12RLF
AUU18RLF
DR_AU017EF_05
2018.06.14

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  • Page 1 AIR CONDITIONER Cassette type DESIGN & TECHNICAL MANUAL INDOOR AUU9RLF AUU12RLF AUU18RLF OUTDOOR AOU9RLFC AOU12RLFC AOU18RLFC DR_AU017EF_05 2018.06.14...
  • 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: AUU9RLF, AUU12RLF, and AUU18RLF............4 3. Wiring diagram ....................7 3-1. Models: AUU9RLF, AUU12RLF, and AUU18RLF............7 4. Capacity table....................8 4-1. Cooling capacity.......................8 4-2. Heating capacity ......................11 5. Fan performance ..................13 5-1. Air velocity distributions....................13 5-2.
  • Page 4 CONTENTS (continued) Part 2. OUTDOOR UNIT..............45 1. Specifications....................46 2. Dimensions....................47 2-1. Models: AOU9RLFC, AOU12RLFC, and AOU18RLFC ..........47 2-2. Installation space ......................48 3. Refrigerant circuit ..................51 3-1. Models: AOU9RLFC, AOU12RLFC, and AOU18RLFC ..........51 4. Wiring diagrams ..................52 4-1. Models: AOU9RLFC and AOU12RLFC .................52 4-2.

  • Page 5: Part 1. Indoor Unit

    Part 1. INDOOR UNIT CASSETTE TYPE: AUU9RLF AUU12RLF AUU18RLF...

  • Page 6: Specifications

    1. Specifications Cassette Type Inverter heat pump Model name AUU9RLF AUU12RLF AUU18RLF Power supply 208/230 V ~ 60 Hz Available voltage range 187—253 V 2.64 3.52 5.28 Rated Btu/h 9,000 12,000 18,000 Cooling 0.90—3.60 0.90—4.00 0.90—5.90 Min.—Max. Btu/h 3,100—12,000 3,100—13,600 3,100—20,100...
  • Page 7 Cassette Type Inverter heat pump Model name AUU9RLF AUU12RLF AUU18RLF NOTES: • Specifications are based on the following conditions: – Cooling: Indoor temperature of 80 °FDB (26.67 °CDB) /67 °FWB (19.44 °CWB), and outdoor temperature of 95 °FDB (35 °CDB) / 75 °FWB (23.9 °CWB).

  • Page 8: Dimensions

    2. Dimensions 2-1. Models: AUU9RLF, AUU12RLF, and AUU18RLF Unit: in (mm) • Cassette grille mounting state 20-7/8 (530): Hanging bolt position 5-5/16 9-13/16 (250) (135) op view Be sure to leave Maintenance space maintenance space for future service at the designated position.
  • Page 9 • Standard type grille (UTG-CCGF) Side view 27-9/16 (700) Bottom view • Grid type grille (UTG-CCGFG) Side view 24-7/16 (620) Bottom view - 5 - 2-1. Models: AUU9RLF, AUU12RLF, and AUU18RLF 2. Dimensions...
  • Page 10 • The ceiling height cannot be set in the 3-way outlet mode. Therefore, ceiling height setting change by function setting 20 is prohibited. For details, refer to "Contents of function setting" page 36. - 6 - 2-1. Models: AUU9RLF, AUU12RLF, and AUU18RLF 2. Dimensions...

  • Page 11: Wiring Diagram

    3. Wiring diagram 3-1. Models: AUU9RLF, AUU12RLF, and AUU18RLF - 7 - 3-1. Models: AUU9RLF, AUU12RLF, and AUU18RLF 3. Wiring diagram...

  • Page 12: 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: AUU9RLF Indoor temperature °FDB °FWB °FDB...
  • Page 13 ¢ Model: AUU12RLF Indoor temperature °FDB °FWB °FDB kBtu kBtu kBtu kBtu kBtu kBtu 11.11 8.65 0.33 12.56 9.79 0.34 13.24 10.31 0.34 14.19 11.06 0.34 15.15 11.81 0.35 15.61 12.17 0.35 10.88 8.46 0.38 12.31 9.56 0.39 12.97 10.08 0.39 13.90 10.80...
  • Page 14 ¢ Model: AUU18RLF Indoor temperature °FDB °FWB °FDB kBtu kBtu kBtu kBtu kBtu kBtu 15.58 10.90 0.51 17.60 12.32 0.52 18.56 12.99 0.53 19.87 13.91 0.53 21.22 14.85 0.54 21.89 15.33 0.54 15.26 10.68 0.55 17.24 12.07 0.56 18.18 12.72 0.57 19.46 13.62...

  • Page 15: Heating Capacity

    4-2. Heating capacity NOTE: Values mentioned in the table are calculated based on the maximum capacity. ¢ Model: AUU9RLF Indoor temperature °FDB °FDB °FWB kBtu/h kBtu/h kBtu/h kBtu/h 14.7 1.84 14.3 1.88 14.0 1.92 13.3 1.99 16.1 1.79 15.7 1.83 15.4...
  • Page 16 ¢ Model: AUU18RLF Indoor temperature °FDB °FDB °FWB kBtu/h kBtu/h kBtu/h kBtu/h 19.3 2.42 18.9 2.47 18.4 2.52 17.5 2.63 20.7 2.63 20.2 2.68 19.7 2.74 18.8 2.85 22.2 2.68 21.6 2.73 21.1 2.79 20.1 2.90 23.1 2.79 22.6 2.85 22.0 2.91 20.9...

  • Page 17: Fan Performance

    5. Fan performance 5-1. Air velocity distributions ¢ Model: AUU9RLF • Air velocity distribution Fan speed Operation mode Measuring conditions HIGH (ft) Unit: ft/s (m/s) 1 (0.25) 2 (0.5) 3 (1.0) 7 (2.0) 3 (1.0) 7 (2.0) 1 (0.25) 2 (0.5) 2 (0.5)
  • Page 18 Measuring conditions Fan speed Operation mode Outlet directions NOTE: Reference data HIGH HEAT 4-way air outlet • Air velocity distribution (ft) Unit: ft/s (m/s) 7 (2.0) 7 (2.0) 5 (1.5) 5 (1.5) 3 (1.0) 3 (1.0) 2 (0.5) 2 (0.5) Side view 1 (0.25) 1 (0.25)
  • Page 19 ¢ Model: AUU12RLF • Air velocity distribution Fan speed Operation mode Measuring conditions HIGH (ft) Unit: ft/s (m/s) 1 (0.25) 2 (0.5) 3 (1.0) 7 (2.0) 7 (2.0) 3 (1.0) 1 (0.25) Top view 2 (0.5) 2 (0.5) Vertical airflow direction louver: Up 1 (0.25) 7 (2.0) 7 (2.0)
  • Page 20 Measuring conditions Fan speed Operation mode Outlet directions NOTE: Reference data HIGH HEAT 4-way air outlet • Air velocity distribution Unit: ft/s (m/s) (ft) 5 (1.5) 5 (1.5) Side view 3 (1.0) 3 (1.0) Vertical airflow direction louver: Down 2 (0.5) 2 (0.5) 1 (0.25) 1 (0.25)
  • Page 21 ¢ Model: AUU18RLF • Air velocity distribution Fan speed Operation mode Measuring conditions HIGH (ft) Unit: ft/s (m/s) 1 (0.25) 2 (0.5) 3 (1.0) 7 (2.0) 7 (2.0) 1 (0.25) 2 (0.5) 3 (1.0) Top view 2 (0.5) 3 (1.0) Vertical airflow direction louver: Up 1 (0.25) 7 (2.0)
  • Page 22 Measuring conditions Fan speed Operation mode Outlet directions NOTE: Reference data HIGH HEAT 4-way air outlet • Air velocity distribution Unit: ft/s (m/s) (ft) 7 (2.0) 7 (2.0) 5 (1.5) 5 (1.5) 3 (1.0) 3 (1.0) Side view 2 (0.5) 2 (0.5) Vertical airflow direction louver: Down 1 (0.25)

  • Page 23: Airflow

    Conversion factor: • 1 m /h = 0.2778 l/s = 0.5886 CFM • 3.6 m /h = 1 l/s • 1.699 m /h = 1 CFM ¢ Model: AUU9RLF  Cooling Fan speed Airflow HIGH QUIET  Heating Fan speed...
  • Page 24 ¢ Model: AUU12RLF  Cooling Fan speed Airflow HIGH QUIET  Heating Fan speed Airflow HIGH QUIET - 20 - 5-2. Airflow 5. Fan performance...
  • Page 25 ¢ Model: AUU18RLF  Cooling Fan speed Airflow HIGH QUIET  Heating Fan speed Airflow HIGH QUIET - 21 - 5-2. Airflow 5. Fan performance...

  • Page 26: Operation Noise (Sound Pressure)

    6. Operation noise (sound pressure) 6-1. Noise level curve ¢ Model: AUU9RLF  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 QUIET QUIET NC-20 NC-20...
  • Page 27 ¢ Model: AUU18RLF  Cooling  Heating NC-65 NC-65 NC-60 NC-60 NC-55 NC-55 NC-50 NC-50 HIGH HIGH NC-45 NC-45 NC-40 NC-40 NC-35 NC-35 NC-30 NC-30 QUIET QUIET 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 28: Sound Level Check Point

    6-2. Sound level check point Microphone 60 in (1.5 m) Microphone - 24 - 6-2. Sound level check point 6. Operation noise (sound pressure)

  • Page 29: Safety Devices

    7. Safety devices Model Type of protection Protection form AUU09-18RLF Circuit protection Current fuse (PCB*) 250 V, 3.15 A Activate: 212 ± 27 °F (100 ± 15 °C) Activate Fan motor stop Fan motor protection Thermal protection program Reset: 203 ± 18 °F Reset (95 ±...

  • Page 30: 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 31  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 33 ft (10 m). •...

  • Page 32: External Output

    8-2. 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. ¢ Operation status output Air conditioner operation status signal can be output. ...

  • Page 33: 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: Relay unit 12 V Connector Relay...

  • Page 34: Remote Controller

    9. Remote controller 9-1. Wired remote controller ¢ Overview a START/STOP button Starts and stops operation. b SET TEMP. button Selects the setting temperature. c MODE button Selects the operating mode (AUTO , HEAT ,FAN COOL , and DRY d FAN button Selects the fan speed AUTO ,QUIET , LOW...
  • Page 35 ¢ Specifications Dimensions and other specifications on the wired remote controller are as follows. Unit: in (mm) 4-3/4 (120) 11/16 (18) Front view Side view Size (H × W × D) in (mm) 4-3/4 × 4-3/4 × 11/16 (120 × 120 × 18) Weight oz (g) 5.6 (160)

  • Page 36: 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 37 ¢ DIP switch setting • Remote controller address setting 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 38: 10-2.Function Settings By Using Remote Controller

    10-2. 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 wired remote controller The function number and the associated setting value are displayed on the LCD of the remote con- troller.
  • Page 39 Repeat steps 3 to 6 to perform additional settings. Press the SET TEMP. buttons ( ) and FAN button simultaneously again for more than 5 seconds to cancel the function setting mode. In addition, the function setting mode will be automatically canceled after 1 minute if no opera- tion is performed.
  • Page 40 ¢ 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 41 4) Room temperature control for indoor unit sensor NOTE: Before performing this setting, refer to Function 95. 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"...
  • Page 42 7) Remote controller custom code (Only for wireless remote controller) The indoor unit custom code can be changed. Select the appropriate custom code. Function number Setting value Setting description Factory setting ♦ 8) External input control "Operation/Stop" mode or "Forced stop" mode can be selected. Function number Setting value Setting description...
  • Page 43 10) Room temperature control for wired remote controller sensor NOTE: Before performing this setting, refer to Function 95. 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. To change this setting, set Function 42 to "Both"...

  • Page 44: 10-3.Function Settings On Wired Remote Controller

    10-3. Function settings on wired remote controller By using some components on the wired remote controller, you can change the function settings re- lated on the remote controller. ¢ Component location Components on the wired remote controller used for the function settings are located as shown in the following figure.
  • Page 45 • SW4: °F/°C switch Displayed unit for temperature can be switched between Fahrenheit (°F) and Celsius (°C). °F/°C switch Factory setting °C °F ♦ • SW6: Memory backup setting Set to ON to use the batteries for memory backup. If the batteries are not used, all of the set- tings stored in the memory will be deleted if there is power failure.

  • Page 46: Accessories

    11. Accessories Part name Exterior Q’ty Part name Exterior Q’ty Operating manual Drain hose Installation manual Hose band Coupler heat insulation Drain hose insulation (Large) Coupler heat insulation Wired remote controller (Small) M10 nut A Remote controller cable (with flange) M10 nut B (with spring lock Tapping screw...

  • Page 47: Optional Parts

    12. Optional parts 12-1. Controllers Exterior Part name Model name Summary Large and full-dot liquid crystal screen, Monitor Mo 10:00AM Mode Set temp. wide and large keys easy to press, Wired remote ° F user-intuitive arrow key. Cool High UTY-RVNUM Icon check: controller Menu...

  • Page 48: 12-2.Cassette Grille

    12-2. Cassette grille Exterior Part name Model name Summary When using this cassette grille, the Cassette grille UTG-CCGF ceiling openings become smaller. This cassette grille can be installed Cassette grille UTG-CCGFG appropriately on the grid type ceiling common in the office. 12-3.

  • Page 49: Part 2. Outdoor Unit

    Part 2. OUTDOOR UNIT SINGLE TYPE: AOU9RLFC AOU12RLFC AOU18RLFC...

  • Page 50: Specifications

    1. Specifications Type Inverter heat pump Model name AOU9RLFC AOU12RLFC AOU18RLFC Power supply 208/230 V ~ 60 Hz Available voltage range 187—253 V Starting current Cooling 795 (1,350) 1,207 (2,050) 1,457 (2,475) Airflow rate CFM (m Heating 989 (1,680) 1,083 (1,840) 1,386 (2,355) Type ×...

  • Page 51: Dimensions

    2. Dimensions 2-1. Models: AOU9RLFC, AOU12RLFC, and AOU18RLFC Top view 13/16 (20) 31-1/8 (790) 2-9/16 (65) 11/16 (18) 11-7/16 (290) 7/8 (23) 13-7/8 (352) Front view Side view 21-1/4 (540) Airflow 8-1/4 (209) Drain pipe 4-Ø7/16 (11.3) hole mounting place Ø13/16 (20) Bottom view - 47 -...

  • Page 52: Installation Space

    2-2. Installation space ¢ 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 53  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 54  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 55: Refrigerant Circuit

    3. Refrigerant circuit 3-1. Models: AOU9RLFC, AOU12RLFC, and AOU18RLFC Heat exchanger 3-Way ( INDOOR ) valve 2-Way valve Muffler 4-Way valve Strainer Expansion valve Heat exchanger Strainer ( OUTDOOR ) Cooling Heating : Thermistor (Discharge Temp.) : Thermistor (Outdoor Temp.) : Thermistor (Heat Exchanger Out Temp.) : Thermistor (Room Temp.) : Thermistor (Pipe Temp.)

  • Page 56: Wiring Diagrams

    4. Wiring diagrams 4-1. Models: AOU9RLFC and AOU12RLFC 4-2. Model: AOU18RLFC - 52 - 4-1. Models: AOU9RLFC and AOU12RLFC 4. Wiring diagrams...

  • Page 57: Capacity Compensation Rate For Pipe Length And Height Difference

    5. 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 5-1. Models: AOU9RLFC and AOU12RLFC NOTE: Values mentioned in the table are calculated based on the maximum capacity.

  • Page 58: Model: Aou18Rlfc

    5-2. Model: AOU18RLFC NOTE: Values mentioned in the table are calculated based on the maximum capacity. Pipe length COOLING — — — 0.951 0.950 — — 0.979 0.967 0.966 Indoor unit is higher than outdoor unit *1 — 0.988 0.983 0.971 0.970 0.994...

  • Page 59: Additional Charge Calculation

    6. Additional charge calculation 6-1. Models: AOU9RLFC and AOU12RLFC Refrigerant type R410A lb oz 2 lb 10 oz Refrigerant amount 1,200 ¢ Refrigerant charge 49 or less 66 (Max.) Total pipe length 0.22 oz/ft 15 or less 20 (Max.) (20 g/m) Additional charge 6-2.

  • Page 60: Airflow

    7. Airflow 7-1. Model: AOU9RLFC  Cooling 1,350  Heating 1,680 7-2. Model: AOU12RLFC  Cooling 2,050 1,207  Heating 1,840 1,083 7-3. Model: AOU18RLFC  Cooling 2,475 1,457  Heating 2,355 1,386 - 56 - 7-1. Model: AOU9RLFC 7. Airflow...

  • Page 61: Operation Noise (Sound Pressure)

    8. Operation noise (sound pressure) 8-1. Noise level curve ¢ Model: AOU9RLFC  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 62: Sound Level Check Point

    ¢ Model: AOU18RLFC  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 8-2.

  • Page 63: Electrical Characteristics

    9. Electrical characteristics Model name AOU9RLFC AOU12RLFC AOU18RLFC Voltage 208/230~ Power supply Frequency 13.4 17.3 MCA * Starting current MAX. CKT. BKR * Power cable Wiring Size spec. * Connection Limited wiring cable * ft (m) 60 (18) 75 (22) length *1: Minimum Circuit Ampacity (Calculation based on UL1995) *2: Selected sample based on Japan Electrotechnical Standards and Codes Committee E0005.

  • Page 64: Safety Devices

    10. Safety devices Model Type of Protection form protection AOU9RLFC AOU12RLFC AOU18RLFC 250 V, 20 A Current fuse (Near the terminal) 250 V, 25 A 250 V, 5 A Circuit protection 250 V, 15 A 250 V, 10 A Current fuse (Main PCB) 250 V, 3.15 A 212±27 °F (100±15 °C) Activate...

  • Page 65: Accessories

    11. Accessories Part name Exterior Q’ty Part name Exterior Q’ty Installation manual Drain cap Drain pipe - 61 - 11. Accessories...

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