Fujitsu ARU24RGLX Design & Technical Manual
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Fujitsu ARU24RGLX Design & Technical Manual

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AIR CONDITIONER
Duct type
DESIGN & TECHNICAL MANUAL
INDOOR
OUTDOOR
ARU12RGLX
ARU18RGLX
ARU24RGLX
ARU30RGLX
AOU12RLFC
AOU18RGLX
AOU24RGLX
AOU30RGLX
AOU36RGLX
ARU36RGLX
ARU42RGLX
ARU48RGLX
AOU42RGLX
AOU48RGLX
DR_AR025EF_04
2019.07.01

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Summary of Contents for Fujitsu ARU24RGLX

  • Page 1 AIR CONDITIONER Duct type DESIGN & TECHNICAL MANUAL INDOOR ARU12RGLX ARU18RGLX ARU36RGLX ARU24RGLX ARU42RGLX ARU30RGLX ARU48RGLX OUTDOOR AOU12RLFC AOU18RGLX AOU42RGLX AOU24RGLX AOU48RGLX AOU30RGLX AOU36RGLX DR_AR025EF_04 2019.07.01...
  • 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 © 2019 Fujitsu General Limited. All rights reserved.

  • Page 3: Table Of Contents

    CONTENTS Part 1. INDOOR UNIT................1 1. Specifications....................2 2. Dimensions....................8 2-1. Model: ARU12RGLX......................8 2-2. Models: ARU18RGLX, ARU24RGLX, and ARU30RGLX..........9 2-3. Models: ARU36RGLX, ARU42RGLX, and ARU48RGLX..........10 2-4. Installation space requirement ..................11 2-5. Maintenance space requirement..................12 3. Wiring diagrams ..................13 3-1. Models: ARU12RGLX, ARU18RGLX, and ARU24RGLX..........13 3-2.
  • Page 4 CONTENTS (continued) Part 2. OUTDOOR UNIT..............97 1. Specifications....................98 2. Dimensions....................101 2-1. Model: AOU12RLFC ....................101 2-2. Models: AOU18RGLX, AOU24RGLX, AOU30RGLX, and AOU36RGLX.....102 2-3. Models: AOU42RGLX and AOU48RGLX ..............103 3. Installation space ..................104 3-1. Model: AOU12RLFC ....................104 3-2. Models: AOU18RGLX, AOU24RGLX, AOU30RGLX, and AOU36RGLX.....107 3-3.
  • Page 5 CONTENTS (continued) 11. Safety devices ...................133 12. External input and output (For AOU42RGLX and AOU48RGLX)...135 12-1.External input ......................135 12-2.External output......................137 13. Function settings (For AOU42RGLX and AOU48RGLX) ......139 13-1.Local setting switch buttons ..................139 13-2.Local setting procedure....................141 14. Accessories ....................144 14-1.Model: AOU12RLFC ....................144 14-2.Models: AOU18RGLX, AOU24RGLX, AOU30RGLX, and AOU36RGLX....144 14-3.Models: AOU42RGLX and AOU48RGLX ..............144 15.

  • Page 7: Part 1. Indoor Unit

    Part 1. INDOOR UNIT DUCT TYPE: ARU12RGLX ARU18RGLX ARU24RGLX ARU30RGLX ARU36RGLX ARU42RGLX ARU48RGLX...

  • Page 8: Specifications

    1. Specifications Duct Type Inverter heat pump Model name ARU12RGLX Power supply 208/230 V ~ 60 Hz Power supply intake Outdoor unit Available voltage range 187—253 V 3.52 Rated Btu/h 12,000 Cooling 0.9—4.0 Min.—Max. Btu/h 3,100—13,600 4.69 Rated Btu/h 16,000 47 °FDB Capacity (Outdoor temp.)
  • Page 9 Duct Type Inverter heat pump Model name ARU12RGLX NOTES: • Specifications are based on the following conditions: – Cooling: Indoor temperature of 80 °FDB/67 °FWB (26.67 °CDB/19.44 °CWB), and outdoor temperature of 95 °FDB/75 °FWB (35 °CDB/23.9 °CWB). – Heating: Indoor temperature of 70 °FDB/59 °FWB (21.11 °CDB/15 °CWB), and outdoor temperature of 47 °FDB/43 °FWB (8.33 °CDB/6.11 °CWB). –...
  • Page 10 Duct Type Inverter heat pump Model name ARU18RGLX ARU24RGLX ARU30RGLX Power supply 208/230 V ~ 60 Hz Power supply intake Outdoor unit Available voltage range 187—253 V 5.28 7.03 8.79 Rated Btu/h 18,000 24,000 30,000 Cooling 1.58—6.30 1.58—8.5 2.81—10.26 Min.—Max.
  • Page 11 Duct Type Inverter heat pump Model name ARU18RGLX ARU24RGLX ARU30RGLX NOTES: • Specifications are based on the following conditions: – Cooling: Indoor temperature of 80 °FDB/67 °FWB (26.67 °CDB/19.44 °CWB), and outdoor temperature of 95 °FDB/75 °FWB (35 °CDB/23.9 °CWB).
  • Page 12 Duct Type Inverter heat pump Model name ARU36RGLX ARU42RGLX ARU48RGLX Power supply 208/230 V ~ 60 Hz Power supply intake Outdoor unit Available voltage range 187—253 V 10.55 12.31 14.07 Rated Btu/h 36,000 42,000 48,000 Cooling 2.81—11.43 5.01—13.19 5.01—14.65 Min.—Max. Btu/h 9,600—39,000 17,100—45,000...
  • Page 13 Duct Type Inverter heat pump Model name ARU36RGLX ARU42RGLX ARU48RGLX NOTES: • Specifications are based on the following conditions: – Cooling: Indoor temperature of 80 °FDB/67 °FWB (26.67 °CDB/19.44 °CWB), and outdoor temperature of 95 °FDB/75 °FWB (35 °CDB/23.9 °CWB). –...

  • Page 14: Dimensions

    2. Dimensions 2-1. Model: ARU12RGLX Unit: in (mm) 11-13/16 29-1/8 (740) (300) 1 (25) 25-9/16 (650) P3-15/16 × 5 = 19-11/16 1-7/8 2-15/16 5-7/8 7-1/2 Ø4-15/16 (47) (P100 × 5 = 500) (75) (150) (190) (Ø125) Control Ø3/16 Gas pipe (Ø4) Drain 5-1/2...

  • Page 15: Models: Aru18Rglx, Aru24Rglx, And Aru30Rglx

    2-2. Models: ARU18RGLX, ARU24RGLX, and ARU30RGLX Unit: in (mm) 40-15/16 (1,040) 2-1/16 11-13/16 (53) 35-1/4 (895) (300) P3-15/16 × 8 = 31-1/2 1-7/8 5-7/8 2-15/16 (47) (P100 × 8 = 800) 7-1/2 (150) (75) Ø4-15/16 (190) (Ø125) Control Gas pipe Ø3/16...

  • Page 16: Models: Aru36Rglx, Aru42Rglx, And Aru48Rglx

    2-3. Models: ARU36RGLX, ARU42RGLX, and ARU48RGLX Unit: in (mm) 56-11/16 (1,440) 2-1/16 11-13/16 51 (1,295) (53) (300) P3-15/16 × 12 = 47-1/4 1-7/8 2-15/16 5-7/8 (47) (P100 × 12 = 1,200) 7-1/2 (75) (150) Ø4-15/16 (190) (Ø125) Control Ø3/16 pipe (Ø4) Liquid Drain...

  • Page 17: Installation Space Requirement

    2-4. Installation space requirement Provide sufficient installation space for product safety. ¢ Models: ARU12RGLX, ARU18RGLX, ARU24RGLX, ARU30RGLX, ARU36RGLX, ARU42RGLX, and ARU48RGLX Unit: in (mm) 1 (20) or more 6 (150) 12 (300) or more or more 1 (20) or more...

  • Page 18: Maintenance Space Requirement

    For future maintenance and service access, provide sufficient maintenance space. NOTE: Do not place any wiring or illumination in the maintenance space, as they will impede ser- vice. ¢ Models: ARU12RGLX, ARU18RGLX, ARU24RGLX, ARU30RGLX, ARU36RGLX, ARU42RGLX, and ARU48RGLX Unit: in (mm) •...

  • Page 19: Wiring Diagrams

    3. Wiring diagrams 3-1. Models: ARU12RGLX, ARU18RGLX, and ARU24RGLX - 13 - 3-1. Models: ARU12RGLX, ARU18RGLX, and ARU24RGLX 3. Wiring diagrams...

  • Page 20: Models: Aru30Rglx, Aru36Rglx, Aru42Rglx, And Aru48Rglx

    3-2. Models: ARU30RGLX, ARU36RGLX, ARU42RGLX, and ARU48RGLX - 14 - 3-2. Models: ARU30RGLX, ARU36RGLX, ARU42RGLX, and ARU48RGLX 3. Wiring diagrams...

  • Page 21: 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 22 ¢ Model: ARU18RGLX Indoor temperature °FDB °FWB °FDB kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h 15.88 12.89 0.36 17.68 12.97 0.36 18.88 14.12 0.35 20.08 15.26 0.35 21.29 15.20 0.35 22.51 16.19 0.35 15.54 12.78 0.58 17.29 12.86 0.59 18.47 14.00 0.60 19.65 15.14...
  • Page 23 ¢ Model: ARU24RGLX Indoor temperature °FDB °FWB °FDB kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h 19.04 14.82 0.43 21.23 14.89 0.43 22.68 16.22 0.43 24.13 17.55 0.44 25.56 17.48 0.44 27.02 18.61 0.45 18.63 14.81 0.67 20.77 14.88 0.68 22.19 16.20 0.68...
  • Page 24 ¢ Model: ARU30RGLX 1,001 Indoor temperature °FDB °FWB °FDB kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h 26.44 20.40 0.76 29.43 20.53 0.75 31.43 22.35 0.74 33.43 24.16 0.73 35.45 24.07 0.74 37.47 25.64 0.74 25.86 20.23 1.20 28.79 20.36 1.21 30.75 22.16 1.23 32.71...
  • Page 25 ¢ Model: ARU36RGLX 1,207 Indoor temperature °FDB °FWB °FDB kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h 30.62 25.34 0.59 34.14 25.45 0.60 34.04 24.26 0.78 36.21 26.25 0.78 38.36 26.15 0.79 40.56 27.84 0.80 27.95 22.15 1.27 31.17 22.26 1.28 33.30 24.24 1.30 35.42...
  • Page 26 ¢ Model: ARU42RGLX 1,501 Indoor temperature °FDB °FWB °FDB kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h 32.16 27.57 1.10 35.83 27.71 1.11 38.26 30.19 1.12 40.70 32.63 1.13 43.15 32.52 1.15 45.61 34.63 1.16 31.86 27.46 1.17 35.49 27.61 1.18 37.91 30.07 1.20 40.32...
  • Page 27 ¢ Model: ARU48RGLX 1,501 Indoor temperature °FDB °FWB °FDB kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h 35.72 29.99 1.77 39.81 30.16 1.80 42.52 32.86 1.82 45.23 35.53 1.83 47.94 35.40 1.85 50.66 37.72 1.87 35.59 29.88 1.80 39.67 30.05 1.84 42.37 32.74 1.85 45.07...

  • Page 28: Heating Capacity

    4-2. Heating capacity NOTE: Values mentioned in the table are calculated based on the maximum capacity. ¢ Model: ARU12RGLX Indoor temperature °FDB °FDB °FWB kBtu/h kBtu/h kBtu/h kBtu/h 15.76 2.05 15.38 2.09 15.01 2.13 14.26 2.17 17.56 1.98 17.12 2.03 16.71 2.07 15.86...
  • Page 29 ¢ Model: ARU24RGLX Indoor temperature °FDB °FDB °FWB kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h 20.24 3.21 19.75 3.27 19.27 3.39 18.78 3.40 18.29 3.48 23.34 3.24 22.78 3.31 22.22 3.38 21.66 3.44 21.10 3.52 25.21 3.27 24.62 3.33 24.01 3.40 23.42 3.47...
  • Page 30 ¢ Model: ARU36RGLX 1,089 Indoor temperature °FDB °FDB °FWB kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h 31.14 4.54 30.39 4.63 29.64 4.76 28.90 4.81 28.15 4.92 34.58 4.80 33.75 4.91 32.92 5.01 32.09 5.10 31.26 5.21 37.34 4.84 36.47 4.93 35.57 5.03 34.70 5.13 33.79...
  • Page 31 ¢ Model: ARU48RGLX 1,501 Indoor temperature °FDB °FDB °FWB kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h 35.10 4.57 34.25 4.66 33.43 4.76 32.58 4.85 31.76 4.95 37.89 4.57 36.97 4.66 36.09 4.76 35.17 4.85 34.28 4.95 42.84 4.57 41.83 4.66 40.82 4.76 39.78 4.86 38.78...

  • Page 32: Fan Performance

    5. Fan performance 5-1. Fan performance curve ¢ Model: ARU12RGLX (inWG) (Pa) Fan performance curve_1 1.20 1.12 1.04 0.96 0.88 Hi (SP mode20) 0.80 0.72 0.64 SP mode20 SP mode20 upper limit lower limit 0.56 0.48 0.40 0.32 Qu (SP mode20) 0.24 Normal SP Hi (Normal SP)
  • Page 33 NOTES: • Setting of the external static pressure is switchable into modes by using the remote controller. • According to the resistance of the connecting duct, perform the setting of the external static pressure with referring “Fan performance curve_2” above. •...
  • Page 34 ¢ Model: ARU18RGLX (inWG) (Pa) Fan performance curve_1 1.20 1.12 1.04 0.96 0.88 Hi (SP mode20) 0.80 0.72 0.64 SP mode20 upper limit 0.56 0.48 0.40 SP mode20 lower limit 0.32 Qu (SP mode20) 0.24 Hi (Normal SP) Normal SP 0.16 upper limit Normal SP...
  • Page 35  Characteristics of air volume and capacity • Cooling (CFM) 1,177 1,000 1,500 2,000 Airflow • Heating (CFM) 1,177 1,000 1,500 2,000 Airflow - 29 - 5-1. Fan performance curve 5. Fan performance...
  • Page 36 ¢ Model: ARU24RGLX (inWG) (Pa) Fan performance curve_1 1.20 1.12 1.04 0.96 0.88 Hi (SP mode20) 0.80 0.72 0.64 SP mode20 upper limit 0.56 0.48 0.40 0.32 0.24 Normal SP upper limit Hi (Normal SP) Qu (SP mode20) 0.16 Normal SP 0.80...
  • Page 37  Characteristics of air volume and capacity • Cooling (CFM) 1,177 1,000 1,500 2,000 Airflow • Heating (CFM) 1,177 1,472 1,000 1,500 2,000 2,500 Airflow - 31 - 5-1. Fan performance curve 5. Fan performance...
  • Page 38 ¢ Model: ARU30RGLX (inWG) (Pa) Fan performance curve_1 1.20 1.12 1.04 0.96 0.88 Hi (SP mode20) 0.80 0.72 0.64 SP mode20 upper limit 0.56 0.48 SP mode20 0.40 lower limit 0.32 Qu(SP mode20) 0.24 Hi (Normal SP) Normal SP upper limit 0.16 0.80 Normal SP...
  • Page 39  Characteristics of air volume and capacity • Cooling (CFM) 1,177 1,472 1,000 1,500 2,000 2,500 Airflow • Heating (CFM) 1,177 1,472 1,000 1,500 2,000 2,500 Airflow - 33 - 5-1. Fan performance curve 5. Fan performance...
  • Page 40 ¢ Model: ARU36RGLX Fan performance curve_1 (inWG) (Pa) 1.20 1.12 1.04 0.96 0.88 Hi (SP mode20) 0.80 0.72 SP mode20 0.64 upper limit 0.56 0.48 SP mode20 0.40 lower limit 0.32 Normal SP Hi (Normal SP) upper limit 0.24 Qu(SP mode20) 0.16 Normal SP 0.80...
  • Page 41  Characteristics of air volume and capacity • Cooling (CFM) 1,177 1,472 1,766 1,000 1,500 2,000 2,500 3,000 Airflow • Heating (CFM) 1,177 1,472 1,766 1,000 1,500 2,000 2,500 3,000 Airflow - 35 - 5-1. Fan performance curve 5. Fan performance...
  • Page 42 ¢ Model: ARU42RGLX Fan performance curve_1 (inWG) (Pa) 1.20 1.12 1.04 0.96 0.88 0.80 Hi (SP mode16) 0.72 0.64 0.56 SP mode16 upper limit SP mode16 0.48 lower limit 0.40 0.32 0.24 Hi (Normal SP) Qu(SP mode16) 0.16 Normal SP upper limit 0.80 Normal SP...
  • Page 43  Characteristics of air volume and capacity • Cooling (CFM) 1,177 1,472 1,766 2,060 1,000 1,500 2,000 2,500 3,000 3,500 Airflow • Heating 2,060 (CFM) 1,177 1,472 1,766 1,000 1,500 2,000 2,500 3,000 3,500 Airflow - 37 - 5-1. Fan performance curve 5.
  • Page 44 ¢ Model: ARU48RGLX Fan performance curve_1 (inWG) (Pa) 1.20 1.12 1.04 0.96 0.88 0.80 Hi (SP mode16) 0.72 0.64 0.56 SP mode16 upper limit SP mode16 0.48 lower limit 0.40 0.32 Hi (Normal SP) 0.24 Qu(SP mode16) 0.16 Normal SP upper limit Normal SP 0.80...
  • Page 45  Characteristics of air volume and capacity • Cooling (CFM) 1,177 1,472 1,766 2,060 1,000 1,500 2,000 2,500 3,000 3,500 Airflow • Heating 2,060 (CFM) 1,177 1,472 1,766 1,000 1,500 2,000 2,500 3,000 3,500 Airflow ¢ Automatic airflow adjustment procedures 1.

  • Page 46: Airflow

    5-2. Airflow ¢ Model: ARU12RGLX  Cooling Fan speed Airflow HIGH QUIET  Heating Fan speed Airflow HIGH QUIET - 40 - 5-2. Airflow 5. Fan performance...
  • Page 47 ¢ Model: ARU18RGLX  Cooling Fan speed Airflow 1,050 HIGH QUIET  Heating Fan speed Airflow 1,050 HIGH QUIET - 41 - 5-2. Airflow 5. Fan performance...
  • Page 48 ¢ Model: ARU24RGLX  Cooling Fan speed Airflow 1,360 HIGH 1,080 QUIET  Heating Fan speed Airflow 1,360 HIGH 1,080 QUIET - 42 - 5-2. Airflow 5. Fan performance...
  • Page 49 ¢ Model: ARU30RGLX  Cooling Fan speed Airflow 1,700 HIGH 1,001 1,360 1,190 1,070 QUIET  Heating Fan speed Airflow 1,700 HIGH 1,001 1,360 1,190 1,070 QUIET - 43 - 5-2. Airflow 5. Fan performance...
  • Page 50 ¢ Model: ARU36RGLX  Cooling Fan speed Airflow 2,050 HIGH 1,207 1,640 1,330 1,070 QUIET  Heating Fan speed Airflow 1,850 HIGH 1,089 1,640 1,330 1,070 QUIET - 44 - 5-2. Airflow 5. Fan performance...
  • Page 51 ¢ Model: ARU42RGLX  Cooling Fan speed Airflow 2,550 HIGH 1,501 2,040 1,201 1,650 1,430 QUIET  Heating Fan speed Airflow 2,550 HIGH 1,501 2,040 1,201 1,650 1,430 QUIET - 45 - 5-2. Airflow 5. Fan performance...
  • Page 52 ¢ Model: ARU48RGLX  Cooling Fan speed Airflow 2,550 HIGH 1,501 2,040 1,201 1,650 1,430 QUIET  Heating Fan speed Airflow 2,550 HIGH 1,501 2,040 1,201 1,650 1,430 QUIET - 46 - 5-2. Airflow 5. Fan performance...

  • Page 53: Operation Noise (Sound Pressure)

    6. Operation noise (sound pressure) 6-1. Noise level curve ¢ Model: ARU12RGLX  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 NC-25 NC-25 NC-20 NC-20 QUIET QUIET NC-15 NC-15 1,000...
  • Page 54 ¢ Model: ARU24RGLX  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 NC-20 NC-20 QUIET QUIET NC-15 NC-15 1,000 2,000 4,000 8,000 1,000 2,000 4,000...
  • Page 55 ¢ Model: ARU36RGLX  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 NC-20 NC-20 QUIET QUIET 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 56: Sound Level Check Point

    ¢ Model: ARU48RGLX  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 QUIET QUIET 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 57: Safety Devices

    7. Safety devices Model Type of protection Protection form ARU18RGLX ARU12RGLX ARU24RGLX Circuit protection Current fuse (PCB*) 250 V, 5 A 239±59 °F (115±15 °C) Activate Fan motor stop Thermal protection program Fan motor protection 158 °F (70 °C) Reset...

  • Page 58: 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...
  • Page 59 ¢ External input and output PCB The indoor unit Operation/Stop can be set by using the input terminal on the PCB.  Input select Use either one of these types of terminals according to the application. (Both types of terminals cannot be used simultaneously.) •...

  • Page 60: 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 82 ft (25 m). •...

  • Page 61: 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 62 External output External input Function and output Indoor unit Mode External input and output PCB setting PCB (Rotary Output CN47 Output 1 Output 2 Output 3 Indoor unit fan 60-00 Operation/Stop Operation/Stop Error status operation status Indoor unit fan External heater 60-00 Operation/Stop Error status...
  • Page 63 ¢ 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 64: 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 65  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 66  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 67 ¢ Forced thermostat off function Function Rotary SW of External External input Input signal Command setting / input and output PCB 60-00 / 2 60-02 / 4 60-05 / 7 Off → On Thermostat off 60-06 / 8 External input and output Input 1 60-08 / A 60-09 / B...
  • Page 68 ¢ 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 60-00 / 2 Off → On Error 60-01 / 3 60-02 / 4...
  • Page 69 ¢ Indoor unit fan operation status Function Rotary SW of External External output Output signal Command setting / input and output PCB Low → High Fan run 60-10 / C Output of indoor unit CN47 High → Low Fan stop 60-00 / 2 Off →...
  • Page 70 ¢ External heater output Function setting Indoor unit Wired R. C. Control Primary heater Auxiliary heater Control switching external heaters Sensor activation* No. 61 Auxiliary heater Heat pump 61-00 — External device* control 1 Auxiliary heater Heat pump External device 61-01 —...
  • Page 71 Return air • Inappropriate designing and installation of external heater may cause a fire by emitted heat from the external heater. • Fujitsu General Ltd. is not responsible for inappropriate designing or installation of external heating device. - 65 - 8-4.
  • Page 72  Auxiliary equipment control by room temperature Auxiliary equipment control is switchable by room temperature. Auxiliary equipment switching is per- formed for each room temperature divided to following 3 zones. Zone A Ts +0.9°F (0.5 °C) Ts: Setting temperature Ts -0.9°F (0.5 °C) Tr: Room temperature Zone B Zone C...
  • Page 73  Auxiliary heater control 1 Operation Condition Heater on Heater is on as shown in following diagram of heating temperature. • Heater is off as shown in following diagram of heating temperature. • Other than heating mode Heater off • Error occurred •...
  • Page 74  Heat pump prohibition control Perform heating by external heater only. Indoor unit is continuous thermostat off. Operation Condition Heater is on as shown in following diagram of heating Heater on temperature. DIP-SW101-3 • Heater is off as shown in following diagram of heating temperature.
  • Page 75  Auxiliary heater control by outdoor temperature 1 This control selects heat pump or external heater according to the outdoor temperature. When out- door temperature is high, the heating is performed by using heat pump only. Operation Condition Heater is on as shown in following diagram of heating Heater on temperature.
  • Page 76 • Operation status 46.4°F (8°C) 42.8°F (6°C) Outdoor temperature (Factory setting) -0.4°F (-18°C) -4°F (-20°C) Heat pump Heat pump Combination zone prohibition only zone Outdoor temperature zone* zone Comp. On/Off 12 V Heater DIP-SW101-3: On DIP-SW101-3: Off *: The outdoor temperature zone transition from one to another will stay in that zone for minimum of 30 min. NOTE: In following operations, compressor will be on in heat pump prohibition zone.
  • Page 77  Auxiliary heater control by outdoor temperature 2 This control selects heat pump or external heater according to the outdoor temperature. Even when outdoor temperature is high, the heating is performed by using both of heat pump and external heater. Operation Condition Heater on...
  • Page 78 • Operation status 46.4°F (8°C) 42.8°F (6°C) Outdoor temperature (Factory setting) -0.4°F (-18°C) -4°F (-20°C) Heat pump Combination zone Outdoor temperature zone * prohibition zone Comp. On/Off 12 V Heater DIP-SW101-3 On DIP-SW101-3 Off * The outdoor temperature zone transition from one to another will stay in that zone for minimum of 30 min. NOTE: In following operations, compressor will be on in heat pump prohibition zone.
  • Page 79  Auxiliary heater control by outdoor temperature 3 This control selects heat pump or external heater according to the outdoor temperature. Even when outdoor temperature is high, the heating is performed by using both of heat pump and external heater. Operation Condition Heater on...
  • Page 80 • Operation status Heat pump only zone 46.4°F (8°C) 42.8°F (6°C) Outdoor temperature (Factory setting) -0.4°F (-18°C) -4°F (-20°C) Combination zone Outdoor temperature zone * Comp. On/Off 12 V Heater DIP-SW101-3 On DIP-SW101-3 Off *: The outdoor temperature zone transition from one to another will stay in that zone for minimum of 30 min. NOTE: In following operations, compressor will be on in heat pump prohibition zone.
  • Page 81  Auxiliary heat pump control • External heater output Operation Condition Heater is on as shown in following diagram of heating Heater on temperature. DIP-SW101-3 • Heater is off as shown in following diagram of heating temperature. • Other than heating mode Indoor unit fan •...
  • Page 82  Auxiliary heat pump control by outdoor temperature 1 • External heater output Operation Condition Heater on Heater is on as shown in following diagram of heating temperature. DIP-SW101-3 • Heater is off as shown in following diagram of heating temperature.
  • Page 83 • Outdoor temperature zone Outdoor temp. Combination zone     ( Heat pump + Heater) A + 3.6°F ( 2°C): -0.4°F (-18°C) *A: -4°F (-20°C)   Heater only zone   *: Adjustable by function setting 67 • Operation status 46.4°F (8°C) 42.8°F (6°C) Outdoor temperature (Factory setting)
  • Page 84  Auxiliary heat pump control by outdoor temperature 2 • External heater output Operation Condition Heater is on as shown in following diagram of heating Heater on temperature. DIP-SW101-3 • Heater is off as shown in following diagram of heating temperature.
  • Page 85 • Outdoor temperature zone Outdoor temp. Heater only zone B + 3.6°F (2°C): 46.4°F (8°C) *B: 42.8°F (6°C) Combination zone (Heat pump + Heater) *: Adjustable by function setting 67 • Operation status Heat pump prohibition zone 46.4°F (8°C) 42.8°F (6°C) Outdoor temperature (Factory setting) -0.4°F (-18°C)
  • Page 86  Auxiliary heat pump control by outdoor temperature 3 • External heater output Operation Condition Heater is on as shown in following diagram of heating Heater on temperature. DIP-SW101-3 • Heater is off as shown in following diagram of heating temperature.
  • Page 87 • Outdoor temperature zone Outdoor temp. Heater only zone     B + 3.6°F (2°C): 46.4°F (8°C) B: 42.8°F (6°C)*   Combination zone   (Heat pump + Heater) A + 3.6°F (2°C): -0.4°F (-18°C) A: -4°F (-20°C)*   Heater only zone  ...
  • Page 88 ¢ Heating thermostat on for humidifier Indoor unit Function External output setting Situation Mode Rotary SW Heating Indoor unit fan Heating thermostat on operation thermostat on no. 60 status 60-05 CN47 Example of 60-06 Output3 individual Not used 60-07 Output2 connection 60-08 Output1...

  • Page 89: Function Settings

    NOTE: Incorrect settings can cause a product malfunction. 9-1. Function settings on indoor unit ¢ Models: ARU12RGLX, ARU18RGLX, ARU24RGLX, ARU30RGLX, ARU36RGLX, ARU42RGLX, and ARU48RGLX By using some components on the PCB, you can change the function settings.
  • Page 90  DIP switch setting • Remote controller address setting (SW100) 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 91: 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 92 2) Static pressure Select the appropriate static pressure according to the installation conditions. Function number Setting value Setting description Factory setting 0.12 inWG (30 Pa) 0.16 inWG (40 Pa) 0.20 inWG (50 Pa) 0.24 inWG (60 Pa) 0.28 inWG (70 Pa) 0.32 inWG (80 Pa) 0.36 inWG (90 Pa) 0.40 inWG (100 Pa)
  • Page 93 3) 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 94 5) 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 95 10) Room temperature sensor switching (Aux.) To use the temperature sensor on the wired remote controller only, change the setting to "Wired re- mote controller" (01). This function will only work if the function setting 42 is set at "Both" (01). When the setting value is set to "Both"...
  • Page 96 13) Control switching of external heaters Sets the control method for external heater to be used. For details, refer to Chapter 8-4. "Details of function" on page 58 Function Factory Setting value Setting description number setting Auxiliary heater control 1 ♦...
  • Page 97 15) Outdoor temperature zone boundary temperature A Setting required if changing of the outdoor temperature setting for heat pump prohibition zone is re- quired when auxiliary heater control by outdoor temperature 1 and 2 are performed on the indoor unit. For details, refer to Chapter 8-4. "Details of function"...
  • Page 98 18) Emergency heat Enables or disables emergency heat input. Function number Setting value Setting description Factory setting Disable ♦ Enable NOTE: When this function is used, IR receiver unit is necessary. 19) Fan delay time Sets the fan delay time when the heater is turned off. Function number Setting value Setting description...

  • Page 99: Accessories

    10. Accessories Part name Exterior Q’ty Part name Exterior Q’ty Operating manual Cable tie (large) Installation manual Cable tie (medium) (indoor unit) Special nut A (large Cable tie (small) flange) Special nut B (small Drain hose insulation flange) Washer Drain hose Coupler heat insulation Hose band (large)

  • Page 100: Optional Parts

    11. Optional parts 11-1. Controllers Exterior Part name Model name Summary Easy finger touch operation with LCD Office Fri 10:00AM Mode Set Temp. Wired remote panel. Backlit LCD enables easy Cool 80°F Custom Auto Auto Heat 74°F UTY-RNRUZ* Cool 84°F Room Temp.

  • Page 101: 11-2.Others

    Wireless LAN UTY-TFSXZ2 smartphones and tablets. adapter For connection indoor unit with UART interface. This converter can control Fujitsu Thermostat UTY-TTRX General products using a third-party converter thermostat controller. - 95 - 11-2. Others...
  • Page 102 NOTE: Combined use of following optional parts and Wireless LAN adapter (UTY-TFSXZ2) is not allowed. • External input and output PCB (UTY-XCSX) • Thermostat converter - 96 - 11-2. Others 11. Optional parts...

  • Page 103: Part 2. Outdoor Unit

    Part 2. OUTDOOR UNIT SINGLE TYPE: AOU12RLFC AOU18RGLX AOU24RGLX AOU30RGLX AOU36RGLX AOU42RGLX AOU48RGLX...

  • Page 104: Specifications

    1. Specifications Type Inverter heat pump Model name AOU12RLFC Power supply 208/230 V ~ 60 Hz Power supply intake Outdoor unit Available voltage range 187—253 V Starting current Cooling 1,207 (2,050) Airflow rate CFM (m Heating 1,083 (1,840) Type × Q'ty Propeller ×...
  • Page 105 Type Inverter heat pump Model name AOU18RGLX AOU24RGLX AOU30RGLX AOU36RGLX Power supply 208/230 V ~ 60 Hz Power supply intake Outdoor unit Available voltage range 187—253 V Starting current 11.5 16.1 Cooling 1,177 (2,000) 2,119 (3,600) 2,119 (3,600) 2,237 (3,800) Airflow rate CFM (m Heating...
  • Page 106 Type Inverter heat pump Model name AOU42RGLX AOU48RGLX Power supply 208/230 V ~ 60 Hz Power supply intake Outdoor unit Available voltage range 187—253 V Starting current 16.8 20.9 Cooling 3,973 (6,750) 4,061 (6,900) Airflow rate CFM (m Heating 3,649 (6,200) 4,091 (6,950) Type ×...

  • Page 107: Dimensions

    2. Dimensions 2-1. Model: AOU12RLFC Unit: in (mm) 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 - 101 -...

  • Page 108: Models: Aou18Rglx, Aou24Rglx, Aou30Rglx, And Aou36Rglx

    2-2. Models: AOU18RGLX, AOU24RGLX, AOU30RGLX, and AOU36RGLX Unit: in (mm) Top view 1-1/4 3(77) 35-7/16 (900) (12) 13 (330) (31) 15-3/4 (400) Front view Side view 25-5/8 (650) Airflow 5-3/4 (147) 6-3/4 (170) Bottom view - 102 - 2-2. Models: AOU18RGLX, AOU24RGLX, AOU30RGLX, and AOU36RGLX 2.

  • Page 109: Models: Aou42Rglx And Aou48Rglx

    2-3. Models: AOU42RGLX and AOU48RGLX 5-3/16 4-11/16 Unit: in (mm) (132) (119) 25-9/16 (650) 2-5/8 (66) 1-3/4 (45) Top view 35-7/16 (900) 1-1/4 13 (330) (31) (12) Terminal blocks 3-way valve (Liquid) 3-way valve ( Gas ) Ø28 (Ø1-1/8) x 2 2-3/16 (55) (Cable port)

  • Page 110: Installation Space

    3. Installation space 3-1. Model: AOU12RLFC ¢ 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 111  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 112  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 113: Models: Aou18Rglx, Aou24Rglx, Aou30Rglx, And Aou36Rglx

    3-2. Models: AOU18RGLX, AOU24RGLX, AOU30RGLX, and AOU36RGLX ¢ 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 114  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 115  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 116: Models: Aou42Rglx And Aou48Rglx

    3-3. Models: AOU42RGLX and AOU48RGLX ¢ 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 117  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 12 (300) or more When there are obstacles at the front and rear.
  • Page 118  Outdoor unit installation in multi-row Unit: in (mm) Single parallel unit arrangement Multiple parallel unit arrangement 6 (150) 20 (500) or more or more 79 (2,000) 119 (3,000) or more or more 24 (600) or more 24 (600) or more 40 (1,000) or more 60 (1,500) or more NOTES:...

  • Page 119: Refrigerant Circuit

    4. Refrigerant circuit 4-1. Model: AOU12RLFC Heat exchanger 3-Way ( INDOOR ) valve 2-Way 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 (Room temperature) : Thermistor (Pipe temperature) - 113 -...

  • Page 120: Models: Aou18Rglx, Aou24Rglx, Aou30Rglx, And Aou36Rglx

    4-2. Models: AOU18RGLX, AOU24RGLX, AOU30RGLX, and AOU36RGLX Heat exchanger 3-Way ( INDOOR ) valve Muffler 2-Way valve Pressure switch 4-Way valve Strainer Expansion valve Heat exchanger Strainer Pressure ( OUTDOOR ) check valve : Cooling : Heating : Thermistor (Compressor temperature) : Thermistor (Discharge temperature) : Thermistor (Outdoor temperature) : Thermistor (Heat exchanger Out temperature)

  • Page 121: Models: Aou42Rglx And Aou48Rglx

    4-3. Models: AOU42RGLX and AOU48RGLX INNER PRESSURE STRAINER MUFFULER SENSOR STRAINER STRAINER FUSIBLE PLUG OUTER SERVICE PORT : Thermistor (Compressor temperature) : Thermistor (Room temperature) : Thermistor (Discharge temperature) : Thermistor (Heat exchanger temperature) : Thermistor (Heat exchanger Med temperature) : Thermistor (Heat exchanger Out temperature) : Thermistor (Outdoor temperature) - 115 -...

  • Page 122: Wiring Diagrams

    5. Wiring diagrams 5-1. Model: AOU12RLFC - 116 - 5-1. Model: AOU12RLFC 5. Wiring diagrams...

  • Page 123: Model: Aou18Rglx

    5-2. Model: AOU18RGLX - 117 - 5-2. Model: AOU18RGLX 5. Wiring diagrams...

  • Page 124: Models: Aou24Rglx, Aou30Rglx, And Aou36Rglx

    5-3. Models: AOU24RGLX, AOU30RGLX, and AOU36RGLX - 118 - 5-3. Models: AOU24RGLX, AOU30RGLX, and AOU36RGLX 5. Wiring diagrams...

  • Page 125: Models: Aou42Rglx And Aou48Rglx

    5-4. Models: AOU42RGLX and AOU48RGLX - 119 - 5-4. Models: AOU42RGLX and AOU48RGLX 5. Wiring diagrams...

  • Page 126: 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: AOU12RLFC NOTE: Values mentioned in the table are calculated based on the maximum capacity.

  • Page 127: Models: Aou18Rglx, Aou24Rglx, Aou30Rglx, And Aou36Rglx

    6-2. Models: AOU18RGLX, AOU24RGLX, AOU30RGLX, and AOU36RGLX NOTE: Values mentioned in the table are calculated based on the maximum capacity. Pipe length COOLING — — — — 0.913 0.899 0.881 — — — 0.941 0.929 0.914 0.896 Indoor unit is higher than outdoor —...

  • Page 128: Models: Aou42Rglx And Aou48Rglx

    6-3. Models: AOU42RGLX and AOU48RGLX NOTE: Values mentioned in the table are calculated based on the maximum capacity. Pipe length COOLING — — — — 0.879 0.847 0.814 0.782 0.743 — — — 0.927 0.894 0.861 0.828 0.795 0.755 Indoor unit is higher —...

  • Page 129: Additional Charge Calculation

    7. Additional charge calculation 7-1. Model: 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 7-2.

  • Page 130: Models: Aou42Rglx And Aou48Rglx

    7-4. Models: AOU42RGLX and AOU48RGLX Refrigerant type R410A lb oz 7 lb 10.1 oz Refrigerant amount 3,450 ¢ Refrigerant charge 98 or less 246 (Max.) Total pipe length 30 or less 75 (Max.) 0.43 oz/ft 14.1 28.2 42.3 63.5 (40 g/m) Additional charge 1,200 1,800...

  • Page 131: Airflow

    8. Airflow 8-1. Model: AOU12RLFC  Cooling 2,050 1,207  Heating 1,840 1,083 8-2. Model: AOU18RGLX  Cooling 2,000 1,177  Heating 2,530 1,489 8-3. Model: AOU24RGLX  Cooling 3,600 1,000 2,119  Heating 3,600 1,000 2,119 - 125 - 8-1.

  • Page 132: Model: Aou30Rglx

    8-4. Model: AOU30RGLX  Cooling 3,600 1,000 2,119  Heating 3,600 1,000 2,119 8-5. Model: AOU36RGLX  Cooling 3,800 1,056 2,237  Heating 3,800 1,056 2,237 8-6. Model: AOU42RGLX  Cooling 6,750 1,875 3,973  Heating 6,200 1,722 3,649 - 126 - 8-4.

  • Page 133: Model: Aou48Rglx

    8-7. Model: AOU48RGLX  Cooling 6,900 1,917 4,061  Heating 6,950 1.931 4,091 - 127 - 8-7. Model: AOU48RGLX 8. Airflow...

  • Page 134: Operation Noise (Sound Pressure)

    9. Operation noise (sound pressure) 9-1. Noise level curve ¢ Model: AOU12RLFC  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 135 ¢ Model: AOU24RGLX  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 ¢...
  • Page 136 ¢ Model: AOU36RGLX  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 ¢...

  • Page 137: Sound Level Check Point

    ¢ Model: AOU48RGLX  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 9-2.

  • Page 138: Electrical Characteristics

    10. Electrical characteristics Model name AOU12RLFC Voltage 208/230~ Power supply Frequency 13.4 MCA * Starting current MAX. CKT. BKR * Power cable Wiring spec. Size Connection Limited wiring cable * ft (m) 60 (18) length Model name Item Unit AOU18RGLX AOU24RGLX AOU30RGLX AOU36RGLX Voltage 208/230~ Power...

  • Page 139: Safety Devices

    11. Safety devices Model Type of protection Protection form AOU12RLFC 250 V, 20 A Current fuse (Near the terminal) 250 V, 5 A Circuit protection 250 V, 15 A Current fuse (Main PCB) 250 V, 3.15 A 212±27 °F (100±15 °C) Activate Fan motor stop Thermal protection...
  • Page 140 Model Type of Protection form protection AOU42RGLX AOU48RGLX 250 V, 30 A Current fuse (Filter PCB) 250 V, 10 A × 2 Circuit protection 250 V, 5 A Current fuse (Main PCB) 250 V, 3.15 A 252±16°F (122±9 °C) Activate Fan motor stop Fan motor Thermal protection...

  • Page 141: External Input And Output (For Aou42Rglx And Aou48Rglx)

    12. External input and output (For AOU42RGLX and AOU48RGLX) With using external input and output functions, this product can be operated inter-connectedly with an external device. Connector Input Output Remarks CN10 Low noise mode — CN11 Peak cut mode — See external input/output settings for details.
  • Page 142 ¢ Peak cut mode By performing following on-site work, operation that suppresses the current value can be enabled: The air conditioner is set to the “Peak cut mode” when closing the contact input of a commercial timer or on/off switch to a connector on the control PCB of the outdoor unit. •...

  • Page 143: 12-2.External Output

    12-2. External output With using external output function, some status signals are transmitted to the control PCB, and the related LED lamp indicates the status of this product. ¢ Error status output Signal on air conditioner error status is generated when a malfunction occurs. •...
  • Page 144 ¢ Compressor status output Signal on compressor operation status is generated when the compressor is running. • Circuit diagram example • 1: Power supply Outdoor unit Voltage (Vcc): DC 24 V or less control PCB Connected unit • 2: Load Connector DC 500 mA or less Power...

  • Page 145: Function Settings (For Aou42Rglx And Aou48Rglx)

    13. Function settings (For AOU42RGLX and AOU48RGLX) Perform appropriate function setting locally according to the installation environment. NOTE: Incorrect settings can cause a product malfunction. CAUTION • Before setting up the switch buttons, discharge the static electricity from your body. •...
  • Page 146 ¢ Switch buttons and the functions LED lamps Switch buttons LED lamp Function or operation method Lights on while power on. (1) POWER/MODE Green Local setting in outdoor unit or error code is displayed with blink. (2) ERROR Blinks during error operation. (3) PUMP DOWN (L1) Orange Lights on during pump down operation.

  • Page 147: 13-2.Local Setting Procedure

    13-2. Local setting procedure NOTE: Before performing the function setting, be sure to stop the operation of the air conditioner. ¢ Low noise mode LED lamps Switch buttons Press the MODE switch button (SW1) for 3 seconds or more to switch to “Local setting mode”. After confirming the LED lamp of POWER/MODE blinks 9 times, press the ENTER switch but- ton (SW3).
  • Page 148 Press the ENTER switch button (SW3) and fix it. PEAK CUT (L4) (L5) (L6) MODE 1: Low MODE 2: Lower To return to “Operating status display (Normal operation)”, press the EXIT switch button (SW4). In case of missing how many times you pressed the SELECT and ENTER switch buttons: 1.
  • Page 149 Press the ENTER switch button (SW3). LOW NOISE (L2) (L3) PEAK CUT MODE Sign “ ”: Lights on Press the SELECT switch button (SW2), and adjust the LED lamps as shown below. PEAK CUT (L4) (L5) (L6) Blink 100 % of rated input ratio 75 % of rated input ratio Blink 50 % of rated input ratio...

  • Page 150: Accessories

    14. Accessories 14-1. Model: AOU12RLFC Part name Exterior Q’ty Part name Exterior Q’ty Installation manual Drain cap Drain pipe 14-2. Models: AOU18RGLX, AOU24RGLX, AOU30RGLX, and AOU36RGLX Part name Exterior Q’ty Part name Exterior Q’ty Installation manual Drain cap Drain pipe 14-3.

  • Page 151: Optional Parts

    15. Optional parts Exterior Part name Model name Summary Use to operate the external input and External UTY-XWZXZ3 output functions of outdoor unit. connect kit (For 42 and 48 models) - 145 - 15. Optional parts...

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