DURASTAR DRA2U18M1A Service Manual
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DURASTAR DRA2U18M1A Service Manual

Multi zone mini split
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MULTI ZONE MINI SPLIT
OUTDOOR UNITS:
DRA2U18M1A, DRA3U28M1A, DRA4U36M1A, & DRA5U48M1A
INDOOR UNITS:
DRAC09F1A, DRAC12F1A, DRAC18F1A, DRAC24F1A,
DRAD09F1A, DRAD12F1A, DRAD18F1A, DRAD24F1A,
DRAW09F1A, DRAW12F1A, DRAW18F1A, DRAW24F1A,
DRAS12F1A, DRAF18F1A, & DRAF24F1A
SERVICE MANUAL

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Summary of Contents for DURASTAR DRA2U18M1A

  • Page 1 MULTI ZONE MINI SPLIT OUTDOOR UNITS: DRA2U18M1A, DRA3U28M1A, DRA4U36M1A, & DRA5U48M1A INDOOR UNITS: DRAC09F1A, DRAC12F1A, DRAC18F1A, DRAC24F1A, DRAD09F1A, DRAD12F1A, DRAD18F1A, DRAD24F1A, DRAW09F1A, DRAW12F1A, DRAW18F1A, DRAW24F1A, DRAS12F1A, DRAF18F1A, & DRAF24F1A SERVICE MANUAL...

  • Page 2: Table Of Contents

    Table of Contents Page 1. Speci cations ....................Model Reference External Appearance Features Part names of Indoor units General Specifications Indoor Unit Combination Dimensional Drawings Centre of Gravity Air Velocity and Temperature Distributions Electrical Wiring Diagrams Refrigerant Cycle Diagrams Capacity Tables Noise Criterion Curves Electrical Characteristics Static Pressure...
  • Page 3 Table of Contents Page Outdoor Unit Point Check Function Error Diagnosis and Troubleshooting Without Error Code Quick Maintenance by Error Code Troubleshooting by Error Code Check Procedures Appendix ......................Temperature Sensor Resistance Value Table for T1,T2,T3 and T4 (°C – K) Temperature Sensor Resistance Value Table for TP (°C –...

  • Page 4: Speci Cations

    Speci cations Contents Model Reference ....................External Appearance ..................... Features ........................Part names of Indoor units ................. General Specifications ..................Indoor Unit Combination ..................Dimensional Drawings ..................Centre of Gravity ....................Air Velocity and Temperature Distributions ............Electrical Wiring Diagrams ..................

  • Page 5: Model Reference

    Refer to the following table to determine the specific indoor and outdoor unit model number of your purchased equipment. Indoor Unit Outdoor Unit Power Supply DRAD09F1A DRAD12F1A Slim Ducted DRAD18F1A DRAD24F1A DRAC09F1A Cassette DRAC12F1A DRA2U18M1A DRAC18F1A DRA3U28M1A 1 , 208-230V~, 60Hz DRA4U36M1A DRAC24F1A DRA5U48M1A DRAF18F1A Floor Ceiling DRAF24F1A DRAW09F1A DRAW12F1A Wall Mounted...

  • Page 6: External Appearance

    2. External Appearance Indoor Unit DRAC09F1A, DRAC12F1A, DRAC18F1A DRAC24F1A DRAF18F1A, DRAF24F1A DRAD09F1A, DRAD12F1A, DRAD18F1A, DRAD24F1A DRAW09F1A, DRAW12F1A, DRAW18F1A, DRAW24F1A Page 6...
  • Page 7 Outdoor Unit DRA2U18M1A, DRA3U28M1A, DRA4U36M1A DRA5U48M1A Page 7...

  • Page 8: Features

    3. Functions Slim Ducted Type 3.1.1 High Static Pressure Capable to be installed in various applications that requires static pressure of 160Pa. 3.1.2 Eccentric Fan Design New eccentric fan design improves the airflow at the air outlet, resulting better performance. 3.1.3 Slim Design The industry lowest height is designed to be fitted into tight roof space.
  • Page 9 3.1.5 Flexible Air Intake The frame size of air inlet in rear and bottom is the same. It’ s very easy to switch to match di erent applications. 3.1.6 Built-in Drain Pump The built-in drain pump can lift condensing water up to 750mm. 3.1.7 Easy Clean You can pull out the filter from left, right, or from the bottom for easy cleaning.
  • Page 10 Cassette Type 3.2.1 Compact design • The body size is 570×260×570mm, it’ s just smaller than the ceiling board, so it’ s very easy for installation and will not damage the decoration. The panel size is 647×50×647mm. • The hooks are designed in the four corners of the body, which can save installation space. 3.2.2 Fire-proof Controller Box •...
  • Page 11 3.2.6 Wired Controller(Optional) • Compared with infrared remote controller, wired controller can be fixed on the wall and avoid mislaying. It's mainly used for commercial zone and makes air conditioner control more convenient. 24K Cassette Type 3.3.1 Air Flow • 360°directional wind can deliver air evenly throughout every corner in any space, reducing hot and cold spots in the room.
  • Page 12 3.3.3 Easy Installation • The Cassette is much slimmer due to the redesigned heat exchanger and overall structures. It now requires less space for installation. 3.3.4 Reserved Air Outlet for Duct • The cassette unit is equipped with reserved connection for air outlet at the side of the indoor unit. It can connect to an air duct to cool a small room nearby.
  • Page 13 3.3.7 Fresh Air • Fresh air intake function brings you fresh and comfortable air feeling. 3.3.8 Wired Controller(Optional) • Compared with infrared remote controller, wired controller can be fixed on the wall and avoid mislaying. It's mainly used for commercial zone and makes air conditioner control more convenient. Page 13...
  • Page 14 Floor Ceiling Type 3.4.1 Easy installation- 2 Style Installation • Fashionable design and streamline appearance, suitable for di erent room style. 3.4.2 3D Air ow • Vertical air flow and horizontal airflow can be adjusted by remote controller to direct air flow to every corner of the room.
  • Page 15 Wall Mounted Type 3.5.1 Powerful Cooling • The optimized indoor and outdoor unit design improves cooling performance and generate a strong air flow as long as 12m and air speed 0.3m/s, keeping your entire room cool all through the summer. 3.5.2 3D Air Flow •...

  • Page 16: Part Names Of Indoor Units

    4. Part names of Indoor units Slim Ducted Type Air inlet Electric control box Drain pipe Air outlet Refrigerant connecting pipe Cassette Type Drain pump (within indoor unit) Drain pipe Air outlet Air inlet Front grille Louver Display panel Refrigerant pipe Page 16...
  • Page 17 Floor Ceiling Type Installation part Louver grille Air outlet Display panel Air inlet Wall Mounted Type Mounting screw ST3.9 25-C-H Installation plate Clip anchor Remote controller holder Page 17...

  • Page 18: General Specifications

    5. General Speci cations Indoor model DRAD09F1A DRAD12F1A DRAD18F1A DRAD24F1A Power supply (Indoor ) V- Ph-Hz 208~230-1-60 208~230-1-60 208~230-1-60 208~230-1-60 Model ZKFN-55-8-22 ZKFN-55-8-22 ZKFN-160-8-1-2 ZKFN-160-8-1-2 Indoor fan motor Input 130.0 130.0 90.0 90.0 Capacitor Speed(Hi/Med/Lo) r/min 1170/1030/850 1170/1030/850 850/700/450 880/820/690 a.Number of rows b.Tube pitch(a)x row pitch(b) 21x13.37...
  • Page 19 Indoor model DRAC09F1A DRAC12F1A DRAC18F1A DRAC24F1A Power supply (Indoor ) V- Ph-Hz 208~230-1-60 208~230-1-60 208~230-1-60 208~230-1-60 Model ZKFP-46-8-1 ZKFP-46-8-1 ZKFP-46-8-1 ZKFP-42-8-1 Indoor fan motor Input 45.0 45.0 45.0 58.0 Capacitor Speed(Hi/Med/Lo) r/min 600/520/460 680/580/500 730/630/570 600/520/450 a.Number of rows b.Tube pitch(a)x row pitch(b) 21x13.37 21x13.37 21x13.37...
  • Page 20 Indoor model DRAF18F1A) DRAF24F1A Power supply (Indoor ) V- Ph-Hz 208~230-1-60 208~230-1-60 Model ZKFN-55-8-1 ZKFN-55-8-1 Indoor fan motor Input 100.0 100.0 Capacitor Speed(Hi/Med/Lo) r/min 950/850/750 1350/1260/1120 a.Number of rows b.Tube pitch(a)x row pitch(b) 21x13.37 21x13.37 c.Fin spacing Indoor coil d.Fin type (code) Hydrophilic aluminum Hydrophilic aluminum e.Tube outside dia.and type...
  • Page 21 Indoor model DRAW09F1A DRAW12F1A DRAW18F1A DRAW24F1A Power supply (Indoor ) V- Ph-Hz 208~230-1-60 208~230-1-60 208~230-1-60 208~230-1-60 Model ZKFP-20-8-6-7 ZKFP-20-8-6-7 ZKFP-58-8-1 ZKFP-58-8-1 Brand Welling Welling Welling Welling Input 0.25 0.25 0.45 Indoor fan motor ---- ---- ---- ---- Winding Resistance ---- ---- ---- ----...
  • Page 22 Outdoor model DRA2U18M1A DRA3U28M1A DRA4U36M1A DRA5U48M1A Power Supply (Outdoor ) V-Ph-Hz 208~230-1-60 208~230-1-60 208~230-1-60 208~230-1-60 Max. input consumption 3030 3550 4600 5550 Max. current 14.5 21.5 26.5 Model ATM150D23UFZ ATF235D22UMT ATF310D43UMT ATQ360D1UMU Type ROTARY ROTARY ROTARY ROTARY Brand GMCC GMCC...

  • Page 23: Indoor Unit Combination

    6. Indoor Unit Combination Suggested Combination Multi DC Outdoor Unit Nominal capacity Two units 1 drive 2 DRA2U18M1A 5.2kW 9+12 12+12 Suggested Combination Multi DC Outdoor Unit Nominal capacity Two units Three units 9+9+9 9+12 9+9+12 9+18 9+9+18 1 drive 3 DRA3U28M1A 7.8kW...

  • Page 24: Dimensional Drawings

    7. Dimensional Drawings Indoor Unit Slim Ducted type Capacity unit (kBtu/h) 9/12 inch 27.56 7.87 19.92 17.72 5.39 21.14 1.18 5.98 23.58 7.32 1.97 29.17 14.17 3.31 5.51 3.31 3.31 inch 34.65 8.27 26.54 23.62 5.51 27.8 1.97 5.35 30.79 7.48 1.57 36.22...
  • Page 25 9-18K Cassette type Page 25...
  • Page 26 24K Cassette Model(KBtu/h) Unit inch 2.95 8.07 1.97 Page 26...
  • Page 27 Floor Ceiling type Model(KBtu/h) Unit 1068 18-24 inch 42.05 26.57 9.25 38.7 Page 27...
  • Page 28 Wall mounted type Model(kBtu/h) W(mm) D(mm) H(mm) 9/12 18/24 1080 Floor mounted console type Unit: mm Hanging arm 16 Drain pipe Page 28...
  • Page 29 Outdoor Unit Single Fan Outdoor Unit Model unit DRA2U18M1A inch 33.27 14.29 27.64 36.3 21.26 13.78 1034 DRA3U28M1A DRA4U36M1A inch 37.24 16.14 31.89 40.7 26.50 15.87 Page 29...
  • Page 30 Model Unit 1333 1060 DRA5U48M1A inch 37.48 16.34 52.48 41.7 24.96 15.9 17.99 Page 30...

  • Page 31: Centre Of Gravity

    8. Centre of gravity DRA2U18M1A DRA3U28M1A, DRA4U36M1A Page 31...
  • Page 32 DRA5U48M1A Page 32...

  • Page 33: Air Velocity And Temperature Distributions

    9. Air Velocity and Temperature Distributions Cassette type -9k &12k Discharge Angle 30° Cooling airflow velocity dis tributions Cooling temperature dis tributions Page 33...
  • Page 34 Cassette type -9k &12k Heating airflow velocity dis tributions Heating temperature dis tributions Page 34...
  • Page 35 Cassette type -9k &12k Discharge Angle 60° Cooling airflow velocity dis tributions Cooling temperature dis tributions Page 35...
  • Page 36 Cassette type -9k &12k Heating airflow velocity dis tributions Heating temperature dis tributions Page 36...
  • Page 37 Cassette type - 18K Discharge Angle 30° Cooling airflow velocity dis tributions Cooling temperature dis tributions Page 37...
  • Page 38 Cassette type - 18K Heating airflow velocity dis tributions Heating temperature dis tributions Page 38...
  • Page 39 Cassette type - 18K Discharge Angle 60° Cooling airflow velocity dis tributions Cooling temperature dis tributions Page 39...
  • Page 40 Cassette type - 18K Heating airflow velocity dis tributions Heating temperature dis tributions Page 40...
  • Page 41 Cassette type - 24K Discharge Angle 30° Cooling airflow velocity dis tributions Cooling temperature dis tributions Page 41...
  • Page 42 Cassette type - 24K Heating airflow velocity dis tributions Heating temperature dis tributions Page 42...
  • Page 43 Cassette type - 24K Discharge Angle 60° Cooling airflow velocity dis tributions Cooling temperature dis tributions Page 43...
  • Page 44 Cassette type - 24K Heating airflow velocity dis tributions Heating temperature dis tributions Page 44...
  • Page 45 Floor Ceiling Type - 18k Ceiling installation: Discharge Angle 30° Cooling airflow velocity dis tributions Cooling temperature dis tributions Page 45...
  • Page 46 Floor Ceiling Type - 18k Ceiling installation: Discharge Angle 60° Cooling airflow velocity dis tributions Cooling temperature dis tributions Page 46...
  • Page 47 Floor Ceiling Type - 18k Ceiling installation: Discharge Angle 30° Heating airflow velocity dis tributions Heating temperature dis tributions Page 47...
  • Page 48 Floor Ceiling Type - 18k Ceiling installation: Discharge Angle 60° Heating airflow velocity dis tributions Heating temperature dis tributions Page 48...
  • Page 49 Floor Ceiling Type - 18k Floor installation: Discharge Angle 30° Cooling airflow velocity dis tributions Cooling temperature dis tributions Page 49...
  • Page 50 Floor Ceiling Type - 18k Floor installation: Discharge Angle 60° Cooling airflow velocity dis tributions Cooling temperature dis tributions Page 50...
  • Page 51 Floor Ceiling Type - 18k Floor installation: Discharge Angle 30° Heating airflow velocity dis tributions Heating temperature dis tributions Page 51...
  • Page 52 Floor Ceiling Type - 18k Floor installation: Discharge Angle 60° Heating airflow velocity dis tributions Heating temperature dis tributions Page 52...
  • Page 53 Floor Ceiling Type - 24k Ceiling installation: Discharge Angle 30° Cooling airflow velocity dis tributions Cooling temperature dis tributions Page 53...
  • Page 54 Floor Ceiling Type - 24k Ceiling installation: Discharge Angle 60° Cooling airflow velocity dis tributions Cooling temperature dis tributions Page 54...
  • Page 55 Floor Ceiling Type - 24k Ceiling installation: Discharge Angle 30° Heating airflow velocity dis tributions Heating temperature dis tributions Page 55...
  • Page 56 Floor Ceiling Type - 24k Ceiling installation: Discharge Angle 60° Heating airflow velocity dis tributions Heating temperature dis tributions Page 56...
  • Page 57 Floor Ceiling Type - 24k Floor installation: Discharge Angle 30° Cooling airflow velocity dis tributions Cooling temperature dis tributions Page 57...
  • Page 58 Floor Ceiling Type - 24k Floor installation: Discharge Angle 60° Cooling airflow velocity dis tributions Cooling temperature dis tributions Page 58...
  • Page 59 Floor Ceiling Type - 24k Floor installation: Discharge Angle 30° Heating airflow velocity dis tributions Heating temperature dis tributions Page 59...
  • Page 60 Floor Ceiling Type - 24k Floor installation: Discharge Angle 60° Heating airflow velocity dis tributions Heating temperature dis tributions Page 60...

  • Page 61: Electrical Wiring Diagrams

    10. Electrical Wiring Diagrams 10.1 Indoor unit Slim Ducted type DRAD09F1A, DRAD12F1A, DRAD18F1A, DRAD24F1A Page 61...
  • Page 62 Cassette type: DRAC09F1A, DRAC12F1A, DRAC18F1A, DRAC24F1A Page 62...
  • Page 63 Floor Ceiling type: DRAF18F1A, DRAF24F1A Floor Mounted Console type: DRAS12F1A Page 63...
  • Page 64 Wall mounted type DRAW09F1A, DRAW12F1A, DRAW18F1A, DRAW24F1A Page 64...
  • Page 65 10.2 Outdoor Unit DRA2U18M1A Page 65...
  • Page 66 DRA3U28M1A Page 66...
  • Page 67 DRA4U36M1A Page 67...
  • Page 68 DRA5U48M1A Page 68...
  • Page 69 10.3 Outdoor Unit PCB Board Main PCB board of DRA2U18M1A, DRA3U28M1A Port Description Parameter CN20 Power and communication with IDU C 230V/AC CN23 Power and communication with IDU B 230V/AC CN25 Power and communication with IDU A 230V/AC Power output for 4-way valve...
  • Page 70 CN29 N-out for IPM board CN37 L-out for IPM board 230V/AC CN28 Power output for evaporator outlet (T2B) temperature sensor 5V/DC CN26 Port for test board 5V/DC Power output for discharge (T5) temperature sensor 12V/DC Power output for condenser (T3), ambient (T4) temperature CN21 5V/DC sensors...
  • Page 71 IPM board of DRA2U18M1A, DRA3U28M1A Page 71...
  • Page 72 Port Description Parameter CN14 Output for DC fan Communication port with main board 5V, 12V/DC Connection ports for reactor 320V/DC N port for AC input 5V/DC L port for AC input 230V/AC Main PCB board of DRA4U36M1A Page 72...
  • Page 73 Port Description Parameter CN27-30 Power and communication with IDU A-D 230V/AC CN1, CN2 Power input for this PCB 230V/AC CN6, CN5 Power output for IPM board 230V/AC Port for communication with IPM board 5V/DC Port for Hi-pressure and low-pressure switches Power output for condenser (T3), ambient (T4) temperature 5V/DC sensors...
  • Page 74 IPM board of DRA4U36M1A Page 74...
  • Page 75 Port Description Parameter CN19 Output for DC fan CN55 Communication port with main board 5V, 12V/DC CN51 Connection ports for reactor 320V/DC CN52 CN53 N port for AC input 5V/DC CN54 L port for AC input 230V/AC Output for compressor Main PCB board of DRA5U48M1A Page 75...
  • Page 76 Port Description Parameter CN1, 3 Power input of the PCB 230V/AC CN2, 4 Power output for IPM board 230V/AC CN22 Port for communication with indoor unit CN35 Port for test board 5V/DC Port for communication with IPM board 5V/DC Power output for condenser (T3), ambient (T4) temperature 5V/DC sensors Power output for discharge (Td) temperature sensor...
  • Page 77 IPM board of DRA5U48M1A Port Description Parameter CN11 Output for DC fan drive board 230V/AC Communication port with main board 5V/DC P-in 320V/DC N-in (GND) CN3, CN6 Ports for reactor Output for compressor Page 77...
  • Page 78 DC fan drive board of DRA5U48M1A Port Description Parameter Remark CON1 Power input for the PCB 230V/AC Communication with main PCB 230V/AC Test port 5V/DC For debugging board CN23 UVW output for DC fan motor 1 CN23 UVW output for DC fan motor 2 Page 78...

  • Page 79: Refrigerant Cycle Diagrams

    11. Refrigerant Cycle Diagrams Piping length (m) Pipe Size Elevation (m) (Diameter:ø) Additional Model Refrigerant Rated IDU and Between Liquid Single Total IDUs DRA2U18M1A 2x9.52 2x6.35 15g/m Page 79...
  • Page 80 Piping length (m) Pipe Size Elevation (m) (Diameter:ø) Additional Model Refrigerant Rated IDU and Between Liquid Single Total IDUs DRA3U28M1A 3x9.52 3x6.35 22.5 15g/m Page 80...
  • Page 81 Piping length (m) Pipe Size (Diameter:ø) Elevation (m) Additional Model Refrigerant Rated IDU and Between Liquid Single Total IDUs DRA4U36M1A 3x9.52+1x12.7 4x6.35 15g/m Page 81...
  • Page 82 Piping length (m) Pipe Size (Diameter:ø) Elevation (m) Additional Model Refrigerant Rated IDU and Between Liquid Single Total IDUs DRA5U48M1A 3x9.52+2x12.7 5x6.35 37.5 15g/m Page 82...

  • Page 83: Capacity Tables

    DRAD09F1A 11.39 12.20 13.87 14.20 13.98 14.99 14.60 13.99 14.86 15.54 15.41 15.26 15.64 14.80 14.25 12.01 10.76 8.60 Zone DRA2U18M1A 15.88 16.70 17.53 17.60 18.24 18.33 18.60 18.76 18.89 19.35 20.38 21.65 22.14 22.20 21.67 16.64 14.66 11.84 75(23.9) 63(17.2)
  • Page 84 27.60 65(18.3) DRAD09F1A Input 1.29 1.36 1.55 1.56 1.57 1.61 1.85 1.81 1.89 1.96 2.00 2.07 2.06 2.02 1.86 Zone DRA2U18M1A 5.38 6.36 7.62 8.83 10.14 12.52 15.58 16.67 18.80 19.34 21.18 22.84 23.97 25.50 26.48 70(21.1) Input 1.34 1.42 1.61...

  • Page 85: Noise Criterion Curves

    13. Noise Criterion Curves 13.1 Indoor Unit Slim Ducted type Notes: -Sound measured at 1.5m away from the center of the unit. -Data is valid at free field condition -Data is valid at nominal operation condition -Reference acoustic pressure OdB = 20 µPa -Sound level will vary depending on a range of factors such as the construction -(acoustic absorption coefficient) of particular room in which the equipment is installed.
  • Page 86 DRAD09F1A DRAD12F1A NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 1000 2000 4000 8000 1000 2000 4000 8000 Band Center Frequency /Hz Band Center Frequency /Hz DRAD18F1A DRAD24F1A NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 1000 2000 4000...
  • Page 87 Cassette type Notes: -Sound measured at 1.4m away from the noisiest location of the unit. -Data is valid at free field condition -Data is valid at nominal operation condition -Reference acoustic pressure OdB = 20 µPa -Sound level will vary depending on a range of factors such as the construction -(acoustic absorption coefficient) of particular room in which the equipment is installed.
  • Page 88 DRAC09F1A DRAC12F1A NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 1000 2000 4000 8000 1000 2000 4000 8000 Band Center Frequency /Hz Band Center Frequency /Hz DRAC18F1A DRAC24F1A NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 1000 2000 4000...
  • Page 89 Floor Ceiling type Notes: -Sound measured at 1.5m away from the center of the unit. -Data is valid at free field condition -Data is valid at nominal operation condition -Reference acoustic pressure OdB = 20 µPa -Sound level will vary depending on a range of factors such as the construction -(acoustic absorption coefficient) of particular room in which the equipment is installed.
  • Page 90 Floor mounted console type Microphone 1.5m Noise level dB(A) Model DRAS12F1A Wall mounted type 0.8m Microphone Notes: -Sound measured at 1.0m away from the center of the unit. -Data is valid at free field condition -Data is valid at nominal operation condition -Reference acoustic pressure OdB = 20 µPa -Sound level will vary depending on a range of factors such as the construction -(acoustic absorption coefficient) of particular room in which the equipment is installed.
  • Page 91 DRAW09F1A DRAW12F1A NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 1000 2000 4000 8000 1000 2000 4000 8000 Band Center Frequency /Hz Band Center Frequency /Hz DRAW18F1A DRAW24F1A NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 1000 2000 4000...
  • Page 92 13.2 Outdoor Unit Note: H= 0.5 × height of outdoor unit Notes: -Sound measured at 1.0m away from the center of the unit. -Data is valid at free field condition -Data is valid at nominal operation condition -Reference acoustic pressure OdB=20 µPa -Sound level will vary depending on arrange o actors such as the construction (acoustic absorption coefficient) of particular room in which the equipment is installed.
  • Page 93 DRA2U18M1A DRA3U28M1A Cooling Hea�ng Cooling Hea�ng NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 1000 2000 4000 8000 1000 2000 4000 8000 Band Center Frequency /Hz Band Center Frequency /Hz DRA4U36M1A DRA5U48M1A Cooling Hea�ng Cooling Hea�ng NC-70 NC-70...

  • Page 94: Electrical Characteristics

    DRAW09F1A 0.07 0.24 Max:253 DRAW012F1A 0.07 0.24 DRAW18F1A 0.125 DRAW24F1A 0.125 Outdoor Unit Power Supply Compressor Model Voltage Phase Voltage Range DRA2U18M1A Min:187 0.05 0.55 Max:229 DRA3U28M1A 6.95 0.12 1.39 Min:207 DRA4U36M1A 0.12 1.39 DRA5U48M1A Max:253 6.85 0.085 1.18 Notes:...

  • Page 95: Static Pressure

    15. Static Pressure Page 95...
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  • Page 97 Page 97...
  • Page 98 Page 98...

  • Page 99: Product Features

    Product Features Contents Display Function ....................Operation Modes and Functions ..............Abbreviations .................... Safety Features ..................Fan ......................Cooling Mode ................... Heating Mode (Heat pump models) ............Auto Mode ....................Drying Mode ..................... Timer Function ..................Sleep Function ................... 2.10 Forced Operation Function ................

  • Page 100: Display Function

    1. Display Function Wall mounted type: Display Function Fresh(available on select units only) Defrost When the unit is on When TIMER is on ECO function (available on select units only) Lights up in di erent colour according to the operation mode(some units)：...
  • Page 101 Slim Ducted type: Cassette type 9-18K: Cassette Type 24K: Manual button Operation indicator Infrared receiver LED display Alarm indicator Timer indicator PRE-DEF (pre-heating/defrost) indicator Floor Ceiling Type Floor Mounted Console Type MANUAL MANUAL MANUAL OPERATION OPERATION OPERATION TIMER TIMER TIMER DEF./FAN DEF./FAN DEF./FAN...

  • Page 102: Operation Modes And Functions

    2. Operation Modes and Functions activated and the indoor fan will operate after a period of 7 seconds. • If the unit is in heating mode, the indoor fan is Abbreviation regulated by the anti-cold wind function. Unit element abbreviations Zero crossing detection error protection(For Wall mounted type) Abbreviation...

  • Page 103: Fan

    Fan Mode seconds. • The machine has run for 10 minutes in defrosting When fan mode is activated: mode. • The outdoor fan and compressor cease operation. 2.5.4 Evaporator Temperature Protection • Temperature control is disabled and no temperature When the evaporator temperature exceeds a preset setting is displayed.

  • Page 104: Timer Function

    Timer Function cooling mode in low fan with the temperature set at 24°C. • The timing range is 24 hours. • Forced defrosting mode: • Timer On. The machine turns on automatically at the • In the forced cooling mode (single heat preset time.

  • Page 105: Mode Conflict

    3. Remote Controller Functions displayed (drain pump close delay is 1 minute), the unit goes back into its last mode. Otherwise, the entire system (including the pump) stops and the Infrared Wireless Remote Controller LED displays an alarm again after 3 minutes. 3.1.1 Standard for wall mounted, cassette &...
  • Page 106 10. TIMER OFF Button: For time OFF setting. Press this 1. ON/OFF Button: For turning on or turning o the air button to activate the Auto-o time setting. Each press conditioner. will increase the time setting in 30 minutes increments, up to 10 hours, then at 1 hour increments up to 24 hours.
  • Page 107 Page 107...

  • Page 108: Lcd Wired Remote Controller

    LCD Wired Remote Controller 3.2.1 LCD Wired Remote Controller The wired remote controller is standard for Slim Ducted type units. i) Buttons and Functions MODE BUTTON ON/OFF BUTTON • Used to start/stop the air • Used to select the operating mode conditioner.
  • Page 109 iii) Installation • Dimensions 120mm 21mm 13.1mm (4.7”) (0.8”) (0.5”) 19.5m m (0.7”) 120mm 85.5m m (4.7”) (3.3”) 50mm (1.9”) • Wiring diagram Refer to the following diagram to wire the Wall mounted type remote control to the indoor unit. Wire Joint, 5p Infrared Pipe 5-Core Shield Cable...
  • Page 110 Putty Trap Putty Putty Trap Trap Note: DO NOT allow water to enter the remote control. Use the trap and putty to seal the wires. • For exposed mounting, cut holes on four of the sides according to the picture below. Cut three holes Cut one holes for wire outle t...
  • Page 111 Using the wire controller to set air ow rate When the air conditioning unit is o , perform the following steps: 1.Press“MODE” and “FAN” for three seconds. 2.Press “ △ ” or “ ” to select the SP. ▽ 3.Press “MODE” to set the airflow rate in the range of 0~4.
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  • Page 120: Centralized Controller

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  • Page 121: Using The Wire Controller To Set External Static Pressure

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  • Page 122 Troubleshooting Contents Safety Caution ....................General Troubleshooting .................. Error Display (Indoor Unit) ................Error Display (Outdoor Unit) ............... Complain Record Form ..................Information Inquiry ................... Outdoor Unit Point Check Function ..............Error Diagnosis and Troubleshooting Without Error Code ......Remote maintenance ................. Field maintenance ..................
  • Page 123 Contents TS05-IDU: Open circuit or short circuit of indoor temperature sensor(T1, T2) diagnosis and solution TS05-ODU: Open circuit or short circuit of outdoor temperature sensor(T3, T4, TP, T2B,TH) diagnosis and solution TS08-L-INV: Current overload protection diagnosis and solution TS09-L: IPM malfunction or IGBT over-strong current protection or Inverter compressor drive error diagnosis and solution TS10-L: Over voltage or too low voltage protection diagnosis and solution TS11-L: Top temperature protection of compressor diagnosis and solution...

  • Page 124: Safety Caution

    1. Safety Caution WARNING Be sure to turn o all power supplies or disconnect all wires to avoid electric shock. While checking indoor/outdoor PCB, please equip oneself with antistatic gloves or wrist strap to avoid damage to the board. WARNING Electricity remains in capacitors even when the power supply is o .

  • Page 125: General Troubleshooting

    2. General Troubleshooting Error Display (Indoor Unit) When the indoor unit encounters a recognized error, the operation lamp will flash in a corresponding series, the timer lamp may turn on or begin flashing, and an error code will be displayed. These error codes are described in the following tables: Operation Timer...
  • Page 126 1 times FLASH IPM malfunction or IGBT over-strong current protection TS09-L 2 times FLASH Over voltage or over low voltage protection TS10-L High temperature protection of IPM module or High pressure 3 times FLASH TS11-L protection or Top temperature protection of compressor 4 times FLASH Low ambient temperature protection...

  • Page 127: Error Display (Outdoor Unit)

    Error Display (Outdoor Unit) Display Malfunction or Protection Solution Defrost Forced cooling Oil return Compressor pre-heating Low ambient cooling Outdoor EEPROM malfunction TS01-ODU Indoor/outdoor units communication error TS02-M Communication error between outdoor main PCB and IPM board TS31 Open or short circuit of outdoor unit temperature sensor TS05-ODU Over voltage or over low voltage protection TS10-L...

  • Page 128: Complain Record Form

    3. Record Form Record Form Request No.: Date: Installation Date: Service Date: Customer Information Name Telephone No. Home Address Email Product Information Indoor Unit Model Outdoor Unit Model Serial No. of indoor unit Serial No. of outdoor unit Working Mode □Fan only □Cooling □Heating...
  • Page 129 Indoor coil temperature Outdoor coil temperature Ambient temperature Outlet temperature of indoor coil Discharge temperature Sunction temperature Targeted Frequency Actual Frequency Indoor fan speed Outdoor fan speed EXV opening steps Compressor continuous running time Causes of compressor stop. A0, A1, b0, b1, b2, b3, b4, Reserved b5, b6, dL, Ac, Uo, Td, nA Page 129...

  • Page 130: Information Inquiry

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  • Page 133: Outdoor Unit Point Check Function

    5. Outdoor Unit Point Check Function • A check switch is included on the outdoor PCB. • Push SW1 to check the unit’ s status while running. The digital display shows the following codes each time the SW1 is pushed. Number of Display Remark...
  • Page 134 Indoor unit A evaporator outlet temperature (T2BA) Indoor unit B evaporator outlet temperature (T2BB) If the temperature is lower than -9 C, the digital display Indoor unit C evaporator outlet shows “-9.” If the temperature is higher than 70 C, the digital temperature (T2BC) display shows “70.”...
  • Page 135 EXV open angle for A indoor unit EXV open angle for B indoor Actual data/4. unit If the value is higher than 99, the digital display shows single EXV open angle for C indoor and double digits. unit For example, if the digital display shows “2.0”, the EXV open EXV open angle for D indoor angle is 120×4=480p.

  • Page 136: Error Diagnosis And Troubleshooting Without Error Code

    6. Error Diagnosis and Troubleshooting Without Error Code WARNING Be sure to turn o unit before any maintenance to prevent damage or injury. Remote maintenance SUGGESTION: When troubles occur, please check the following points with customers before field maintenance. Problem Solution Unit will not start Page 139~140...

  • Page 137: Field Maintenance

    Field maintenance Problem Solution Unit will not start Page 141~142 Compressor will not start but fans run Page 141~142 Compressor and condenser (outdoor) fan will not start Page 141~142 Evaporator (indoor) fan will not start Page 141~142 Condenser (Outdoor) fan will not start Page 141~142 Unit runs, but shortly stops Page 141~142...
  • Page 138 1.Remote Maintenance Electrical Circuit Refrigerant Circuit Possible causes of trouble Unit will not start The power switch is on but fans will not start The temperature on the display board cannot be set Unit is on but the wind is not cold(hot) Unit runs, but shortly stops The unit starts up and stops frequently Unit runs con�nuously but insufficient cooling(hea�ng)
  • Page 139 1.Remote Maintenance Others Possible causes of trouble Unit will not start The power switch is on but fans will not start The temperature on the display board cannot be set Unit is on but the wind is not cold(hot) Unit runs, but shortly stops The unit starts up and stops frequently Unit runs con�nuously but insufficient cooling(hea�ng) Cool can not change to heat...
  • Page 140 2.Field Maintenance Refrigerant Circuit Others Possible causes of trouble Unit will not start Compressor will not start but fans run Compressor and condenser (outdoor) fan will not start Evaporator (indoor) fan will not start Condenser (Outdoor) fan will not start Unit runs, but shortly stops Compressor short-cycles due to overload High discharge pressure...
  • Page 141 2.Field Maintenance Electrical Circuit Possible causes of trouble Unit will not start Compressor will not start but fans run Compressor and condenser (outdoor) fan will not start Evaporator (indoor) fan will not start Condenser (Outdoor) fan will not start Unit runs, but shortly stops Compressor short-cycles due to overload High discharge pressure Low discharge pressure...

  • Page 142: Quick Maintenance By Error Code

    7. Quick Maintenance by Error Code If you do not have the time to test which specific parts are faulty, you can directly change the required parts according the error code. You can find the parts to replace by error code in the following table. Error Code Part requiring replacement...

  • Page 143: Troubleshooting By Error Code

    8. Troubleshooting by Error Code TS01-IDU: Indoor EEPROM parameter error diagnosis and solution Description : Indoor PCB main chip does not receive feedback from EEPROM chip. Recommended parts to prepare: • Indoor PCB Troubleshooting and repair: Shut o the power supply and turn it on 2 minutes later.
  • Page 144 TS01-ODU: Outdoor EEPROM parameter error or Compressor driven chip EEPROM parameter error diagnosis and solution Description : Outdoor PCB main chip does not receive feedback from EEPROM chip or compressor driven chip. Recommended parts to prepare: • Outdoor PCB Troubleshooting and repair: Shut o the power supply and turn it on 2 minutes later.
  • Page 145 TS02-M: Indoor and outdoor units communication error diagnosis and solution Description : Indoor unit can not communicate with outdoor unit Recommended parts to prepare: • Indoor PCB • Outdoor PCB • Short-circuited component Troubleshooting and repair: Start: Power o , then Power on the A /C by the Breaker .
  • Page 146 Remarks: • Use a multimeter to test the DC voltage between 2 port(or S or L2 port) and 3 port(or N or S port) of outdoor unit. The red pin of multimeter connects with 2 port(or S or L2 port) while the black pin is for 3 port(or N or S port) . •...
  • Page 147 TS03: Zero crossing detection error diagnosis and solution Description : When PCB does not receive zero crossing signal feedback for 4 minutes or the zero crossing signal time interval is abnormal. Recommended parts to prepare: • Connection wires • Indoor main PCB Troubleshooting and repair: Check the connections and power supply.
  • Page 148 TS04-L-IDU: The Indoor fan speed is operating outside of normal range diagnosis and solution) Description : When indoor fan speed keeps too low or too high for a certain time, the LED displays the failure code and the AC turns o . Recommended parts to prepare: •...
  • Page 149 Index: 1. DC Fan Motor(control chip is in fan motor) Power on and when the unit is in standby, measure the voltage of pin1-pin3, pin4-pin3 in fan motor connector. If the value of the voltage is not in the range showing in below table, the PCB must has problems and need to be replaced. •...
  • Page 150 TS04-ODU: The outdoor fan speed is operating outside of normal range diagnosis and solution) Description : When outdoor fan speed keeps too low or too high for a certain time, the LED displays the failure code and the AC turns o . Recommended parts to prepare: •...
  • Page 151 Index: 1. Outdoor DC Fan Motor (control chip is in outdoor PCB) Release the UVW connector. Measure the resistance of U-V, U-W, V-W. If the resistance is not equal to each other, the fan motor must has problems and need to be replaced. otherwise the PCB must has problems and need to be replaced. 2.
  • Page 152 TS05-IDU: Open circuit or short circuit of indoor temperature sensor(T1, T2) diagnosis and solution Description : If the sampling voltage is lower than 0.06V or higher than 4.94V, the LED displays the failure code. Recommended parts to prepare: • Connection wires •...

  • Page 153: Diagnosis And Solution

    TS05-ODU: Open circuit or short circuit of outdoor temperature sensor(T3, T4, TP, T2B,TH) diagnosis and solution Description : If the sampling voltage is lower than 0.06V or higher than 4.94V, the LED displays the failure code. Recommended parts to prepare: •...

  • Page 154: Ts08-L-Inv: Current Overload Protection Diagnosis And Solution

    TS08-L-INV: Current overload protection diagnosis and solution Description : An abnormal current rise is detected by checking the speci ed current detection circuit. Recommended parts to prepare: • Connection wires • Rectifier • PFC circuit or reactor • Blocked refrigeration piping system •...
  • Page 155 Was the protection activated Was the protection activated in standby? in standby? Restart the unit when the power supply Restart the unit when the power supply Is the power voltage is normal ? Is the power voltage is normal ? returns to normal returns to normal Is outdoor terminal voltage...
  • Page 156 Index: 1. Normal voltage of P and N 208-240V(1-phase,3-phase) 380-415V(3-phase) In standby around 310VDC around 530VDC In operation With passive PFC module With partial active PFC With fully active PFC module module >200VDC >310VDC >370VDC >450VDC 2.Reactor Check Measure the resistance and voltage (to ground) of the reactor. The normal resistance should be around 0.1 ohm. Otherwise, the reactor must have malfunction.

  • Page 157: Drive Error Diagnosis And Solution

    TS09-L: IPM malfunction or IGBT over-strong current protection or Inverter compressor drive error diagnosis and solution Description: When the voltage signal the IPM sends to the compressor drive chip is abnormal, the LED displays the failure code and the AC turns o . Or an abnormal inverter compressor drive is detected by a special detection circuit, including communication signal detection, voltage detection, compressor rotation speed signal detection and so on.
  • Page 158 Restart the unit when the power supply Restart the unit when the power supply Is the power voltage normal ? Is the power voltage normal ? returns to normal returns to normal Is the outdoor terminal voltage Is the outdoor terminal voltage Are the power wires Reconnect the Are the power wires...
  • Page 159 Index: 1. IPM Continuity Check WARNING Electricity remains in capacitors even when the power supply is o . Ensure the capacitors are fully discharged before troubleshooting. 1. Turn o outdoor unit and disconnect power supply. 2. Discharge electrolytic capacitors and ensure all energy-storage unit has been discharged. 3.
  • Page 160 2. Normal voltage of P and N 208-240V(1-phase,3-phase) 380-415V(3-phase) In standby around 310VDC around 530VDC In operation With passive PFC module With partial active PFC With fully active PFC module module >200VDC >310VDC >370VDC >450VDC 3. Reactor Check Measure the resistance and voltage (to ground) of the reactor. The normal resistance should be around 0.1 ohm. Otherwise, the reactor must have malfunction.
  • Page 161 TS10-L: Over voltage or too low voltage protection diagnosis and solution Description: Abnormal increases or decreases in voltage are detected by checking the specified voltage detection circuit. Recommended parts to prepare: • Power supply wires • IPM module board • PCB •...
  • Page 162 Check whether the power Restart the unit when the power supply Check whether the power Restart the unit when the power supply voltage is normal . gets normal voltage is normal . gets normal Check the wiring of Check the wiring of Measure whether o utdoor Measure whether o utdoor power wires well or...
  • Page 163 Index: 1. Normal voltage of P and N 208-240V(1-phase,3-phase) 380-415V(3-phase) In standby around 310VDC around 530VDC In operation With passive PFC module With partial active PFC With fully active PFC module module >200VDC >310VDC >370VDC >450VDC 2. Reactor Check Measure the resistance and voltage (to ground) of the reactor. The normal resistance should be around 0.1 ohm. Otherwise, the reactor must have malfunction.

  • Page 164: Ts11-L: Top Temperature Protection Of Compressor Diagnosis And Solution

    TS11-L: Top temperature protection of compressor diagnosis and solution Description: If the sampling voltage is not 5V, the LED will display the failure. Recommended parts to prepare: • Connection wires • Outdoor PCB • Over load protector Troubleshooting and repair: Check if the air ow system Clear up the air inlet and outlet or the heat of indoor and outdoor units...
  • Page 165 TS14: Indoor units mode con ict (match with multi outdoor unit) Description: The indoor units cannot work cooling mode and heating at same time. Heating mode has a priority. • Suppose Indoor unit A working in cooling m • ode or fan mode, and indoor unit B is set to heating mode, then A will change to o and B will work in heating mode.

  • Page 166: Ts15: Water-Level Alarm Malfunction Diagnosis And Solution

    TS15: Water-Level Alarm Malfunction Diagnosis and Solution Description : If the sampling voltage is not 5V, the LED displays the failure code. Recommended parts to prepare: • Connection wires • Water-level switch • Water pump • Indoor PCB Shut o the power supply and Shut o the power supply and turn it on 2 minutes later.

  • Page 167: Ts23: Communication Error Between Indoor Two Chips Diagnosis And Solution

    TS23: Communication error between indoor two chips diagnosis and solution Description : Indoor PCB main chip does not receive feedback from another chip. Recommended parts to prepare: • Indoor PCB Troubleshooting and repair: Shut o the power supply and turn it on 2 minutes later. Is it still displaying The unit is operating normally .

  • Page 168: Ts13-Inv: Low Pressure Protection Diagnosis And Solution

    TS13-INV: Low pressure protection diagnosis and solution Description: Outdoor pressure switch cut o the system because low pressure is lower than 0.13 MPa, the LED displays the failure code. Recommended parts to prepare: • Connection wires • Outdoor PCB • Low pressure protector •...
  • Page 169 Low pressure protection Low pressure protection Are the low pressure protector Are the low pressure protector and main control board wired and main control board wired Reconnect the low pressure protector and main Reconnect the low pressure protector and main properly? properly? control board...

  • Page 170: Ts28: High Pressure Protection Diagnosis And Solution

    TS28: High pressure protection diagnosis and solution Description : Outdoor pressure switch cut o the system because high pressure is higher than 4.4 MPa Recommended parts to prepare: • Connection wires • Pressure switch • Outdoor fan • Outdoor main PCB Troubleshooting and repair: Page 170...
  • Page 171 High pressure protection High pressure protection Are the high pressure switch Are the high pressure switch Connect high pressure switch and Connect high pressure switch and and main control boar wired and main control boar wired mian control board mian control board correctly? correctly? Is the high pressure...
  • Page 172 TS31: Communication error between outdoor main PCB and IPM board diagnosis and solution Description : The main PCB cannot detect the IPM board. Recommended parts to prepare: • Connection wires • IPM board • Outdoor main PCB • Electric control box Troubleshooting and repair: Is there at least one LED in Is there at least one LED in...

  • Page 173: Ts32: Discharge Temperature Protection Of Compressor Diagnosis And Solution

    TS32: Discharge temperature protection of compressor diagnosis and solution Description : If the compressor discharge temperature exceeds a certain level for nine seconds, the compressor ceases operation, the LED displays the failure code Recommended parts to prepare: • Connection wires •...

  • Page 174: Ts27-Inv: High Temperature Protection Of Condenser Diagnosis And Solution

    TS27-INV: High temperature protection of condenser diagnosis and solution Description : When the outdoor pipe temperature is more than 65°C, the unit stops. It starts again only when the outdoor pipe temperature is less than 52°C. Recommended parts to prepare: •...

  • Page 175: Ts30: Pfc Module Protection Diagnosis And Solution

    TS30: PFC module protection diagnosis and solution Description : When the voltage signal that IPM send to compressor drive chip is abnormal, the LED displays the failure code and the AC turns o . Recommended parts to prepare: • Connection wires •...
  • Page 176 Index: 1. Normal voltage of P and N 208-240V(1-phase,3-phase) 380-415V(3-phase) In standby around 310VDC around 530VDC In operation With passive PFC module With partial active PFC With fully active PFC module module >200VDC >310VDC >370VDC >450VDC 2. Reactor Check Measure the resistance and voltage (to ground) of the reactor. The normal resistance should be around 0.1 ohm. Otherwise, the reactor must have malfunction.

  • Page 177: Check Procedures

    9. Check Procedures Temperature Sensor Check WARNING Be sure to turn o all power supplies or disconnect all wires to avoid electric shock. Operate after compressor and coil have returned to normal temperature in case of injury. 1. Disconnect the temperature sensor from PCB (Refer to Chapter 5&6. Indoor&Outdoor Unit Disassembly). 2.
  • Page 178 9.2 Compressor Check 1. Disconnect the compressor power cord from outdoor PCB (Refer to Chapter 6. Outdoor Unit Disassembly)). 2. Measure the resistance value of each winding using a multi-meter. 3. Check the resistance value of each winding in the following table. Resistance Value ATM150D23UFZ ATF235D22UMT...
  • Page 179 9.3 IPM Continuity Check WARNING Electricity remains in capacitors even when the power supply is o . Ensure the capacitors are fully discharged before troubleshooting. 1. Turn o outdoor unit and disconnect power supply. 2. Discharge electrolytic capacitors and ensure all energy-storage unit has been discharged. 3.
  • Page 180 Appendix Contents Temperature Sensor Resistance Value Table for T1, T2, T3, and T4 (°C – K) .. 181 Temperature Sensor Resistance Value Table for TP (°C – K) ......iii) Pressure On Service Port ...................
  • Page 181 Temperature Sensor Resistance Value Table for T1,T2,T3 and T4 (°C – K) °C °F K Ohm °C °F K Ohm °C °F K Ohm °C °F K Ohm 115.266 12.6431 2.35774 0.62973 108.146 12.0561 2.27249 0.61148 101.517 11.5 2.19073 0.59386 96.3423 10.9731 2.11241...
  • Page 182 ii) Temperature Sensor Resistance Value Table for TP (°C – K) °C °F K Ohm °C °F K Ohm °C °F K Ohm °C °F K Ohm °C °F K Ohm °C °F K Ohm °C °F K Ohm °C °F K Ohm 542.7...
  • Page 183 iii) Pressure On Service Port(R410A) Cooling chart: ODU(DB) °F(°C) 0(-17) 5(-15) 95 (35) (-9.44) (7.22) (23.89) (29.44) (40.56) (46.11) (48.89) IDU(DB/WB) 70/59 (21.11/15) 10.1 10.6 75/63 (23.89/17.22) 10.7 11.2 80/67 (26.67/19.44) 11.2 11.9 90/73 (32.22/22.78) 10.5 10.3 10.0 10.6 12.4 13.0 70/59 (21.11/15) 75/63 (23.89/17.22)
  • Page 184 Heating chart: ODU(DB/WB) 57/53 47/43 37/33 27/23 17/13 (-8.33/- 0/-2 -17/-18 °F(°C) (13.89/11.67) (8.33/6.11) (2.78/0.56) (-2.78/-5) 10.56) (-17/-19) (-27/-28) IDU(DB) 55(12.78) 30.3 28.5 25.3 22.8 20.8 18.5 16.5 65(18.33) 32.5 30.0 26.6 25.4 23.3 20.5 19.0 75(23.89) 33.8 31.5 27.8 26.3 24.9 21.5...
  • Page 185 System Pressure Table-R410A Pressure Temperature Pressure Temperature °C °F °C °F 14.5 -51.623 -60.921 2350 23.5 340.75 38.817 101.871 21.75 -43.327 -45.989 2400 39.68 103.424 -36.992 -34.586 2450 24.5 355.25 40.531 104.956 36.25 -31.795 -25.231 2500 362.5 41.368 106.462 43.5 -27.351 -17.232 2550...

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