Design and Technical Manual

ManualsBrandsFujitsu ManualsCooling & Air Quality9,000 BTU 24 SEER Ceiling Cassette Mini-Split Heat Pump System

Table Of Contents

DESIGN & TECHNICAL MANUAL
- Part 1. INDOOR UNIT
- Part 2. OUTDOOR UNIT

AIR CONDITIONER

Cassette type

DESIGN & TECHNICAL MANUAL

INDOOR

AUU9RLF

AUU12RLF

AUU18RLF

OUTDOOR

AOU9RLFC

AOU12RLFC

AOU18RLFC

DR_AU017EF_05

2018.06.14

Summary of content (65 pages)

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AIR CONDITIONER Cassette type DESIGN & TECHNICAL MANUAL INDOOR AUU9RLF AUU12RLF AUU18RLF OUTDOOR AOU9RLFC AOU12RLFC AOU18RLFC DR_AU017EF_05 2018.06.
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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.
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CONTENTS Part 1. INDOOR UNIT...........................................................................1 1. Specifications................................................................................................2 2. Dimensions....................................................................................................4 2-1. Models: AUU9RLF, AUU12RLF, and AUU18RLF............................................................4 3. Wiring diagram ....................................................
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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 ...............................................
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Part 1.
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Cassette Type Inverter heat pump Model name AUU9RLF Power supply Available voltage range Rated Cooling Min.—Max. Capacity Rated Heating Min.—Max. Cooling Input power Heating Cooling Heating Current EER Cooling COP Heating SEER HSPF Cooling Heating Cooling Heating Power factor Rated Min.—Max. Rated Min.—Max.
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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). – Heating: Indoor temperature of 70 °FDB (21.11 °CDB) /59 °FWB (15 °CWB), and outdoor temperature of 47 °FDB (8.33 °CDB) /43 °FWB (6.11 °CWB). – Pipe length: 24 ft 6 in (7.5 m), Height difference: 0 ft (0 m).
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CASSETTE TYPE AUU09-18RLF 2-1. Models: AUU9RLF, AUU12RLF, and AUU18RLF Unit: in (mm) • Cassette grille mounting state a (Ceiling openings) 5-14/16 to 7-7/8 (150 to 200) 5-5/16 (135) 22-7/16 (570): Indoor unit 21-1/4 (540): Hanging bolt position 9-13/16 (250) Top view Min. 17-11/16 (450) 2-15/16 (75) 20-7/8 (530): Hanging bolt position Maintenance space Be sure to leave maintenance space for future service at the designated position. Min.
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CASSETTE TYPE AUU09-18RLF 1-15/16 (49) 1-3/16 (30) 27-9/16 (700) Side view 27-9/16 (700) Bottom view 1-3/16 (30) 1-15/16 (49) • Grid type grille (UTG-CCGFG) 24-7/16 (620) CASSETTE TYPE AUU09-18RLF • Standard type grille (UTG-CCGF) Side view 24-7/16 (620) Bottom view 2-1. Models: AUU9RLF, AUU12RLF, and AUU18RLF -5- 2.
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CASSETTE TYPE AUU09-18RLF CASSETTE TYPE AUU09-18RLF ¢ Installation space Unit: in (mm) Strong and durable ceiling 11 (262) or more 40 (1,000) or more 40 (1,000) or more 95 (2,400) or more Obstruction Floor Maximum height from floor to ceiling [Unit: in (mm)] Model name AUU9RLF AUU12-18RLF 107 (2,700) Standard mode High ceiling mode 119 (3,000) — • 3-way direction setting Unit: in (mm) 4 (100) or more* NOTES: • *: When installing the indoor unit, be careful about the maintenance space.
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CASSETTE TYPE AUU09-18RLF CASSETTE TYPE AUU09-18RLF 3. Wiring diagram 3-1. Models: AUU9RLF, AUU12RLF, and AUU18RLF 3-1. Models: AUU9RLF, AUU12RLF, and AUU18RLF -7- 3.
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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 AFR CFM 318 Indoor temperature °FDB °FWB °FDB Outdoor temperature 15 23 32 41 50 59 67 77 87 95 104 115 64 54 TC SHC kBtu 8.34 6.67 8.17 6.53 7.99 6.39 7.82 6.26 7.65 6.12 7.48 5.68 8.43 6.82 8.02 6.72 7.61 6.48 7.06 6.24 6.01 5.77 5.53 5.36 IP kW 0.22 0.24 0.25 0.27 0.25 0.30 0.47 0.53 0.60 0.60 0.51 0.
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CASSETTE TYPE AUU09-18RLF AFR CFM 359 Indoor temperature °FDB °FWB °FDB Outdoor temperature 15 23 32 41 50 59 67 77 87 95 104 115 64 54 TC SHC kBtu 11.11 8.65 10.88 8.46 10.66 8.46 10.44 7.62 10.21 7.21 9.99 7.05 11.26 8.29 10.68 8.15 10.13 7.88 9.42 7.57 7.98 6.99 7.37 6.55 IP kW 0.33 0.38 0.42 0.44 0.44 0.45 0.72 0.81 0.90 0.91 0.77 0.78 70 60 TC SHC kBtu 12.56 9.79 12.31 9.56 12.05 9.57 11.80 8.61 11.54 8.15 11.29 7.97 12.73 8.29 12.08 8.15 11.43 7.88 10.65 7.57 9.04 6.99 8.33 6.55 IP kW 0.
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CASSETTE TYPE AUU09-18RLF AFR CFM 400 Indoor temperature °FDB °FWB °FDB Outdoor temperature 15 23 32 41 50 59 67 77 87 95 104 115 64 54 TC SHC kBtu 15.58 10.90 15.26 10.68 14.94 10.46 14.62 10.23 14.30 10.01 13.98 9.15 15.76 10.47 14.98 10.37 14.16 10.20 14.13 10.27 10.85 9.01 10.07 8.33 IP kW 0.51 0.55 0.57 0.58 0.59 0.62 1.07 1.21 1.35 1.55 1.12 1.13 70 60 TC SHC kBtu 17.60 12.32 17.24 12.07 16.88 11.82 16.52 11.56 16.16 11.31 15.80 10.33 17.81 10.47 16.92 10.34 15.97 10.20 15.93 10.27 12.28 8.
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CASSETTE TYPE AUU09-18RLF NOTE: Values mentioned in the table are calculated based on the maximum capacity. ¢ Model: AUU9RLF AFR CFM 318 Indoor temperature °FDB °FWB -5 5 14 23 32 41 47 50 59 -7 3 12 19 28 37 43 47 50 Outdoor temperature °FDB 60 TC kBtu/h 14.7 16.1 16.8 17.3 17.4 17.4 18.9 20.9 21.6 65 IP kW 1.84 1.79 1.73 1.67 1.61 1.67 1.73 1.75 1.76 TC kBtu/h 14.3 15.7 16.4 16.9 17.0 17.0 18.5 20.4 21.1 70 IP kW 1.88 1.83 1.76 1.70 1.64 1.71 1.76 1.79 1.80 TC kBtu/h 14.0 15.4 16.0 16.5 16.
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CFM 471 Indoor temperature °FDB °FWB -5 5 14 23 32 41 47 50 59 -7 3 12 19 28 37 43 47 50 Outdoor temperature °FDB 60 TC kBtu/h 19.3 20.7 22.2 23.1 23.3 25.5 26.9 29.7 30.8 65 IP kW 2.42 2.63 2.68 2.79 3.02 2.67 2.50 2.23 2.24 TC kBtu/h 18.9 20.2 21.6 22.6 22.8 24.9 26.2 29.0 30.1 70 IP kW 2.47 2.68 2.73 2.85 3.08 2.73 2.55 2.28 2.29 TC kBtu/h 18.4 19.7 21.1 22.0 22.2 24.3 25.6 28.3 29.3 m3/h AFR 75 IP kW 2.52 2.74 2.79 2.91 3.14 2.78 2.60 2.32 2.34 TC kBtu/h 17.5 18.8 20.1 20.9 21.1 23.1 24.
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CASSETTE TYPE AUU09-18RLF CASSETTE TYPE AUU09-18RLF 5. Fan performance 5-1. Air velocity distributions ¢ Model: AUU9RLF • Air velocity distribution Fan speed HIGH Measuring conditions Operation mode FAN (ft) (m) 13 4 Unit: ft/s (m/s) 1 (0.25) 10 3 2 (0.5) 7 2 3 (1.0) 3 1 7 (2.0) Top view Vertical airflow direction louver: Up 0 0 3 (1.0) 7 (2.0) 2 (0.5) 2 (0.5) 1 (0.25) 7 (2.0) 7 (2.0) 3 (1.0) 3 1 1 (0.25) 3 (1.0) 7 2 2 (0.5) 10 3 1 (0.
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Fan speed HIGH Operation mode HEAT Outlet directions 4-way air outlet • Air velocity distribution (ft) (m) 9 2.7 8 2.5 Unit: ft/s (m/s) 7 (2.0) 5 (1.5) 3 (1.0) 2 (0.5) 1 (0.25) 7 2 Side view Vertical airflow direction louver: Down 3 1 7 (2.0) 5 (1.5) 3 (1.0) 2 (0.5) 1 (0.25) 0 0 4 13 3 10 2 7 1 3 0 0 1 3 2 7 3 10 4 (m) 13 (ft) • Air temperature distribution (ft) (m) 9 2.7 8 2.
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CASSETTE TYPE AUU09-18RLF CASSETTE TYPE AUU09-18RLF ¢ Model: AUU12RLF • Air velocity distribution Fan speed HIGH Measuring conditions (ft) Operation mode FAN (m) Unit: ft/s (m/s) 13 4 1 (0.25) 10 3 7 2 2 (0.5) 3 (1.0) 3 1 7 (2.0) 0 0 Top view Vertical airflow direction louver: Up 3 (1.0) 7 (2.0) 2 (0.5) 2 (0.5) 1 (0.25) 7 (2.0) 7 (2.0) 3 (1.0) 3 1 1 (0.25) 3 (1.0) 2 (0.5) 7 2 10 3 1 (0.
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Fan speed HIGH Operation mode HEAT Outlet directions 4-way air outlet • Air velocity distribution Unit: ft/s (m/s) (ft) (m) 9 2.7 8 2.5 7 2 5 (1.5) Side view Vertical airflow direction louver: Down 5 (1.5) 3 (1.0) 3 (1.0) 2 (0.5) 3 1 0 0 2 (0.5) 1 (0.25) 1 (0.25) 4 3 2 1 0 1 2 3 13 10 7 3 0 3 7 10 4 (m) 13 (ft) • Air temperature distribution Unit: ft/s (m/s) (ft) (m) 9 2.7 8 2.5 7 86 (30) 2 82 (28) 79 (26) Side view Vertical airflow direction louver: Down 5-1.
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CASSETTE TYPE AUU09-18RLF CASSETTE TYPE AUU09-18RLF ¢ Model: AUU18RLF • Air velocity distribution Fan speed HIGH Measuring conditions (ft) Operation mode FAN (m) Unit: ft/s (m/s) 13 4 1 (0.25) 10 3 2 (0.5) 7 2 3 (1.0) 3 1 7 (2.0) Top view Vertical airflow direction louver: Up 2 (0.5) 0 0 7 (2.0) 3 (1.0) 1 (0.25) 1 (0.25) 3 (1.0) 7 (2.0) 2 (0.5) 7 (2.0) 3 1 3 (1.0) 7 2 2 (0.5) 10 3 1 (0.
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Fan speed HIGH Operation mode HEAT CASSETTE TYPE AUU09-18RLF CASSETTE TYPE AUU09-18RLF Measuring conditions NOTE: Reference data Outlet directions 4-way air outlet • Air velocity distribution Unit: ft/s (m/s) (ft) (m) 9 2.7 8 2.5 7 7 (2.0) 2 7 (2.0) 5 (1.5) 5 (1.5) 3 (1.0) Side view Vertical airflow direction louver: Down 3 (1.0) 2 (0.5) 3 1 0 0 2 (0.5) 1 (0.25) 1 (0.
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CASSETTE TYPE AUU09-18RLF CASSETTE TYPE AUU09-18RLF 5-2. Airflow Conversion factor: • 1 m3/h = 0.2778 l/s = 0.5886 CFM • 3.6 m3/h = 1 l/s • 1.699 m3/h = 1 CFM ¢ Model: AUU9RLF  Cooling Fan speed Airflow HIGH m3/h l/s CFM MED m3/h l/s CFM LOW m3/h l/s CFM QUIET m3/h l/s CFM 540 150 318 490 136 288 440 122 259 390 108 230  Heating Fan speed Airflow m3/h HIGH 5-2.
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CASSETTE TYPE AUU09-18RLF CASSETTE TYPE AUU09-18RLF ¢ Model: AUU12RLF  Cooling Fan speed Airflow m3/h HIGH 610 169 359 530 147 312 470 131 277 410 114 241 l/s CFM MED m3/h l/s CFM LOW m3/h l/s CFM QUIET m3/h l/s CFM  Heating Fan speed Airflow m3/h HIGH 5-2. Airflow l/s CFM MED m3/h l/s CFM LOW m3/h l/s CFM QUIET m3/h l/s CFM - 20 - 610 169 359 530 147 312 470 131 277 410 114 241 5.
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CASSETTE TYPE AUU09-18RLF CASSETTE TYPE AUU09-18RLF ¢ Model: AUU18RLF  Cooling Fan speed Airflow m3/h HIGH 680 189 400 580 161 341 490 136 288 410 114 241 l/s CFM MED m3/h l/s CFM LOW m3/h l/s CFM QUIET m3/h l/s CFM  Heating Fan speed Airflow m3/h HIGH 5-2. Airflow l/s CFM MED m3/h l/s CFM LOW m3/h l/s CFM QUIET m3/h l/s CFM - 21 - 800 222 471 680 189 400 580 161 341 450 125 265 5.
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CASSETTE TYPE AUU09-18RLF 6-1. Noise level curve ¢ Model: AUU9RLF  Cooling  Heating 80 Octave band sound pressure level, dB: (0 dB=0.00020 μbar) Octave band sound pressure level, dB: (0 dB=0.
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CASSETTE TYPE AUU09-18RLF  Cooling  Heating 80 Octave band sound pressure level, dB: (0 dB=0.00020 μbar) 80 Octave band sound pressure level, dB: (0 dB=0.
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CASSETTE TYPE AUU09-18RLF CASSETTE TYPE AUU09-18RLF 6-2. Sound level check point Microphone 60 in (1.5 m) Microphone 6-2. Sound level check point - 24 - 6.
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CASSETTE TYPE AUU09-18RLF CASSETTE TYPE AUU09-18RLF 7. Safety devices Type of protection Circuit protection Model Protection form AUU09-18RLF Current fuse (PCB*) Activate Fan motor protection Thermal protection program Reset 250 V, 3.15 A Activate: 212 ± 27 °F (100 ± 15 °C) Fan motor stop Reset: 203 ± 18 °F (95 ± 10 °C) Fan motor restart *PCB: Printed Circuit Board - 25 - 7.
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Connector Input Output Remarks CN102 CN103 CN6 Control input (Operation/Stop) — — — Operation status output Fresh-air control output See external input/output settings for details. 8-1. 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 492 ft (150 m). • The wire connection should be separate from the power cable line.
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Indoor unit control PCB Connected unit Connector Example: Switch 1 • Contact capacity: DC 24 V or more, 10 mA or more. • *: Make the distance from the PCB to the connected unit within 33 ft (10 m). • Use non-polar relays and switches. 3 *33 ft.
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With using external output function, operating status of this product can be transmitted to the external device, and also, this product can be inter-connected with the external device. ¢ Operation status output Air conditioner operation status signal can be output.
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CASSETTE TYPE AUU09-18RLF CASSETTE TYPE AUU09-18RLF 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 control PCB 12 V Connected unit Example: Relay unit Connector Example: Fan Relay power supply 1 On/Off 2 33 ft.* (10 m) Signal Locally purchased • *: Make the distance from the PCB to the connected unit within 33 ft (10 m).
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CASSETTE TYPE AUU09-18RLF CASSETTE TYPE AUU09-18RLF 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 o Selects the operating mode (AUTO b f g h i a c d m l COOL j k e n , and DRY , HEAT , ,FAN ). d FAN button Selects the fan speed AUTO MED , and HIGH ,QUIET , LOW , ). e ECONOMY (THERMO SENSOR) button Turns the economy-efficient mode on and off.
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Unit: in (mm) 4-3/4 (120) 11/16 (18) Front view Size (H × W × D) Weight Cable length (accessory) Power Side view in (mm) oz (g) ft (m) V 4-3/4 × 4-3/4 × 11/16 (120 × 120 × 18) 5.6 (160) 33 (10) 12  Wiring specifications Use Remote controller cable 9-1. Wired remote controller Cable size 22 AWG (0.33 Wire type mm2) Polar 3-core - 31 - Remarks Use sheathed PVC cable. 9.
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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.
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• 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.
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Some function settings can be changed on the remote controller. After confirming the setting procedure and the content of each function setting, select appropriate functions for your installation environment. ¢ Setting procedure by using wired remote controller The function number and the associated setting value are displayed on the LCD of the remote controller.
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8. 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 operation is performed. After completing the function setting, be sure to turn off the power and turn it on again. CAUTION After turning off the power, wait 30 seconds or more before turning on the power again.
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Each function setting listed in this section is adjustable in accordance with the installation environment. NOTE: Setting will not be changed if invalid numbers or setting values are selected.  Function setting list Function no.
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NOTE: Before performing this setting, refer to Function 95. Depending on the installed environment, correction of the room temperature sensor may be required. Select the appropriate control setting according to the installed environment. The temperature correction values show the difference from the Standard setting "00" (manufacturer’s recommended value). *When Function 95-01 (High insulation) is set, the Standard setting "00" will be the same as "No correction 0.0 °F (0.0 °C)" (01).
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Function number Setting value Setting description Factory setting A B C D ♦ 44 00 01 02 03 8) External input control "Operation/Stop" mode or "Forced stop" mode can be selected. Function number Setting value Setting description Factory setting 00 01 02 Operation/Stop mode (Setting prohibited) Forced stop mode ♦ 46 9) Room temperature sensor switching (Aux.) To use the temperature sensor on the wired remote controller only, change the setting to "Wired remote controller" (01).
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NOTE: Before performing this setting, refer to Function 95. Depending on the installed environment, correction of the room temperature sensor may be required. Select the appropriate control setting according to the installed environment. To change this setting, set Function 42 to "Both" (01). Ensure that the thermo sensor icon is displayed on the remote controller screen.
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By using some components on the wired remote controller, you can change the function settings related 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. NOTE: Do not use DIP switch 2. Front case (back side) OFF ON 1 2 3 4 5 6 ON DIP switch 2 DIP switch 1 (All switches are fixed at OFF.
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SW4 °F/°C switch Factory setting OFF ON °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 settings stored in the memory will be deleted if there is power failure. SW6 Memory backup Factory setting OFF ON Disabled Enabled ♦ 10-3. Function settings on wired remote controller - 41 - 10.
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Part name Exterior Q’ty Part name Exterior Q’ty Operating manual 1 Drain hose 1 Installation manual 1 Hose band 1 Coupler heat insulation (Large) 1 Drain hose insulation 1 Coupler heat insulation (Small) 1 Wired remote controller 1 M10 nut A (with flange) 4 Remote controller cable 1 M10 nut B (with spring lock washer) 4 Tapping screw 2 Template (Carton top) 1 - 42 - 11. Accessories CASSETTE TYPE AUU09-18RLF CASSETTE TYPE AUU09-18RLF 11.
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CASSETTE TYPE AUU09-18RLF CASSETTE TYPE AUU09-18RLF 12. Optional parts 12-1. Controllers Exterior Monitor Mode Cool Model name Mo 10:00AM Fan Set temp. 80 Icon check: Menu Part name °F High Wired remote controller Wired remote controller UTY-RVNUM UTY-RNNUM Simple remote controller UTY-RSNUM Wireless remote controller UTY-LNHUM Summary Large and full-dot liquid crystal screen, wide and large keys easy to press, user-intuitive arrow key.
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CASSETTE TYPE AUU09-18RLF CASSETTE TYPE AUU09-18RLF 12-2. Cassette grille Exterior Part name Model name Summary Cassette grille UTG-CCGF Cassette grille UTG-CCGFG Part name Model name Summary External connect kit UTY-XWZX Use to connect with various peripheral devices and air conditioner PCB. Air outlet shutter plate UTR-YDZB Installed at the air outlet when 3directions mode is performed.
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Part 2.
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1. Specifications Inverter heat pump AOU9RLFC Power supply Available voltage range Starting current A OUTDOOR UNIT AOU9-18RLFC Airflow rate Fan Cooling Heating Type × Q'ty Motor output Heat exchanger type Fin Compressor Type × Q'ty Motor output Refrigerant oil Enclosure Dimensions (H × W × D) Weight FPI Type (Material) Surface treatment 850 lb (g) in3 (cm3) Material Size 54 55 2 lb 14 oz (1,300) FREOL α68SZ/Equivalent 21.3 (350) Steel Beige Approximate color of Munsell 10YR 7.5/1.
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2. Dimensions OUTDOOR UNIT AOU9-18RLFC OUTDOOR UNIT AOU9-18RLFC 2-1. Models: AOU9RLFC, AOU12RLFC, and AOU18RLFC Top view 31-1/8 (790) 2-9/16 (65) 11/16 (18) 11-7/16 (290) 7/8 (23) 3/8 (9) 13/16 (20) 24-7/16 (620) 13/16 (20) 13-7/8 (352) Front view Side view 21-1/4 (540) 6-7/8 (175) 4-5/16 (110) 12-5/8 (320) Airflow 8-1/4 (209) Drain pipe mounting place Ø13/16 (20) 4-Ø7/16 (11.3) hole Bottom view 2-1. Models: AOU9RLFC, AOU12RLFC, and AOU18RLFC - 47 - 2.
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2-2. Installation space ¢ Space requirement  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. 4 (100) or more 4 (100) or more When there are obstacles at the front only. 10 (250) or more 12 (300) or more When there are obstacles at the front and rear.
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 Multiple outdoor unit installation • When the upper space is open: Unit: in (mm) 10 10 (250) or more (25 0) or mo OUTDOOR UNIT AOU9-18RLFC When there are obstacles at the front only. OUTDOOR UNIT AOU9-18RLFC When there are obstacles at the rear only. re 60 (1,500) or more 12 (300) or more When there are obstacles at the front and rear.
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 Outdoor unit installation in multi-row Unit: in (mm) Multiple parallel unit arrangement OUTDOOR UNIT AOU9-18RLFC 10 6 (150) or more 79 (2,000) or more 24 (600) or more 40 (1,000) or more 10 (25 0) (25 0) or mo re 20 (500) or more or mo re 119 (3,000) or more 24 (600) or more 60 (1,500) or more 10 (250) or more 60 (1,500) or more 20 (500) or more NOTES: • If the space is larger than stated above, the condition will be the same as when there is no obstacle.
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3. Refrigerant circuit 3-1. Models: AOU9RLFC, AOU12RLFC, and AOU18RLFC OUTDOOR UNIT AOU9-18RLFC ThP ThD ThR Compressor Muffler OUTDOOR UNIT AOU9-18RLFC Heat exchanger ( INDOOR ) 3-Way valve 2-Way valve 4-Way valve Strainer Expansion valve Heat exchanger ( OUTDOOR ) Strainer ThHO ThO Cooling Heating ThD : Thermistor (Discharge Temp.) ThO : Thermistor (Outdoor Temp.) ThHO : Thermistor (Heat Exchanger Out Temp.) ThR : Thermistor (Room Temp.) ThP : Thermistor (Pipe Temp.) 3-1.
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4. Wiring diagrams OUTDOOR UNIT AOU9-18RLFC OUTDOOR UNIT AOU9-18RLFC 4-1. Models: AOU9RLFC and AOU12RLFC 4-2. Model: AOU18RLFC 4-1. Models: AOU9RLFC and AOU12RLFC - 52 - 4.
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5. Capacity compensation rate for pipe length and height difference Height difference H Indoor unit is higher than outdoor unit *1 Indoor unit is lower than outdoor unit *2 Outdoor unit OUTDOOR UNIT AOU9-18RLFC OUTDOOR UNIT AOU9-18RLFC Indoor unit H H 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.
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5-2. Model: AOU18RLFC Height difference H Indoor unit is higher than outdoor unit *1 Indoor unit is lower than outdoor unit *2 HEATING Height difference H OUTDOOR UNIT AOU9-18RLFC COOLING Indoor unit is higher than outdoor unit *1 Indoor unit is lower than outdoor unit *2 5-2. Model: AOU18RLFC ft 49 32 24 16 0 -16 -24 -32 -49 Pipe length 5 7.5 16 24 — — — — — 0.988 0.994 0.992 1.002 1.000 1.002 1.000 — 1.000 — — — — 10 32 — 0.979 0.983 0.987 0.995 0.995 0.995 0.995 — 15 49 0.951 0.967 0.971 0.
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6. Additional charge calculation 6-1. Models: AOU9RLFC and AOU12RLFC Refrigerant amount R410A 2 lb 10 oz 1,200 lb oz g OUTDOOR UNIT AOU9-18RLFC OUTDOOR UNIT AOU9-18RLFC Refrigerant type ¢ Refrigerant charge ft m oz g Total pipe length Additional charge 49 or less 15 or less 0 0 66 (Max.) 20 (Max.) 3.5 100 0.22 oz/ft (20 g/m) 6-2. Model: AOU18RLFC Refrigerant type Refrigerant amount R410A 2 lb 14 oz 1,300 lb oz g ¢ Refrigerant charge Total pipe length Additional charge 6-1.
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7. Airflow 7-1. Model: AOU9RLFC m3/h l/s CFM 1,350 375 795 m3/h l/s CFM 1,680 467 989 OUTDOOR UNIT AOU9-18RLFC OUTDOOR UNIT AOU9-18RLFC  Cooling  Heating 7-2. Model: AOU12RLFC  Cooling m3/h l/s CFM 2,050 569 1,207 m3/h l/s CFM 1,840 511 1,083  Heating 7-3. Model: AOU18RLFC  Cooling m3/h l/s CFM 2,475 688 1,457 m3/h l/s CFM 2,355 654 1,386  Heating 7-1. Model: AOU9RLFC - 56 - 7.
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8. Operation noise (sound pressure) 8-1. Noise level curve  Heating 80 Octave band sound pressure level, dB: (0 dB=0.0002 µbar) Octave band sound pressure level, dB: (0 dB=0.
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¢ Model: AOU18RLFC  Cooling  Heating 80 70 NC-65 60 NC-60 NC-55 50 NC-50 NC-45 40 NC-40 NC-35 30 NC-30 NC-25 20 NC-20 NC-15 10 0 63 70 NC-65 60 NC-60 NC-55 50 NC-50 NC-45 40 NC-40 NC-35 30 NC-30 NC-25 20 NC-20 NC-15 10 0 125 250 500 1,000 2,000 8,000 4,000 63 Octave band center frequency, Hz 125 250 500 1,000 2,000 4,000 8,000 Octave band center frequency, Hz 8-2.
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9. Electrical characteristics OUTDOOR UNIT AOU9-18RLFC Power supply Voltage Frequency MCA *1 Starting current Wiring spec. *2 MAX. CKT. BKR *3 Power cable Size Connection Limited wiring cable *4 length AOU9RLFC V Hz A A A AWG AWG ft (m) AOU12RLFC AOU18RLFC 208/230~ 60 13.4 4.1 6.7 15 14 17.3 7.7 20 12 14 60 (18) 75 (22) *1: Minimum Circuit Ampacity (Calculation based on UL1995) *2: Selected sample based on Japan Electrotechnical Standards and Codes Committee E0005.
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10. Safety devices Model Protection form AOU9RLFC OUTDOOR UNIT AOU9-18RLFC Current fuse (Near the terminal) Circuit protection Current fuse (Main PCB) Fan motor protection Thermal protection program Compressor protection Thermal protection program (Discharge temp.) Activate Reset Activate Reset - 60 - AOU12RLFC AOU18RLFC 250 V, 20 A 250 V, 25 A 250 V, 5 A 250 V, 15 A 250 V, 10 A 250 V, 3.
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11. Accessories Exterior Q’ty Installation manual 1 Drain pipe 1 Part name Drain cap - 61 - Exterior Q’ty 3 OUTDOOR UNIT AOU9-18RLFC OUTDOOR UNIT AOU9-18RLFC Part name 11.