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Kaysun Amazon Unitario Top Discharge Engineering Data Book

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ENGINEERING DATA BOOK
K2UF-280 DN4S
K2UF-335 DN4S
K2UF-400 DN4S
K2UF-450 DN4S
Thank you very much for purchasing our air conditioner.
Before using your air conditioner, please read this manual carefully and keep it for future
reference.
Amazon Unitario Top Discharge
K2UF-500 DN4S
K2UF-560 DN4S
K2UF-615 DN4S
K2UF-670 DN4S
K2UF-730 DN4S
K2UF-785 DN4S
K2UF-850 DN4S
K2UF-900 DN4S

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Summary of Contents for Kaysun Amazon Unitario Top Discharge

  • Page 1 ENGINEERING DATA BOOK Amazon Unitario Top Discharge K2UF-280 DN4S K2UF-500 DN4S K2UF-730 DN4S K2UF-335 DN4S K2UF-560 DN4S K2UF-785 DN4S K2UF-400 DN4S K2UF-615 DN4S K2UF-850 DN4S K2UF-450 DN4S K2UF-670 DN4S K2UF-900 DN4S Thank you very much for purchasing our air conditioner.
  • Page 2 Amazon Unitario Top Discharge CONTENTS Part 1 General Information ................3 Part 2 Outdoor Unit Engineering Data ............15 Part 3 System Design and Installation ............134...
  • Page 3 Amazon Unitario Top Discharge...
  • Page 4 Amazon Unitario Top Discharge Part 1 General Information 1 Indoor and Outdoor Unit Capacities ............4 External Appearance ................6 3 Combination Ratio ................... 8 Selection Procedure ................. 9...

  • Page 5: Indoor And Outdoor Unit Capacities

    Amazon Unitario Top Discharge 1 Indoor and Outdoor Unit Capacities 1.1 Indoor Units 1.1.1 Standard indoor units Table 1-1.1: Standard indoor unit abbreviation codes Abbreviation Abbreviation Type Type code code KCOF One-way Cassette KAYF Wall-mounted KCIF Compact Four-way Cassette KPCF Ceiling & Floor KCIBF Four-way Cassette KS(E)F...
  • Page 6 K2UF-500 DN4S 20HP K2UF-560 DN4S 22HP K2UF-615 DN4S 24HP K2UF-670 DN4S 26HP K2UF-730 DN4S 28HP K2UF-785 DN4S 30HP K2UF-850 DN4S 32HP K2UF-900 DN4S Notes: Amazon Unitario Top Discharge Individual Series (Amazon Unitario Top Discharge Series) outdoor units could not be combined.

  • Page 7: External Appearance

    Amazon Unitario Top Discharge 2 External Appearance 2.1 Indoor Units 2.1.1 Standard indoor units Table 1-2.1: Standard indoor unit appearance One-way Cassette Compact Four-way Cassette KCOF KCIF Four-way Cassette Medium Static Pressure Duct KCIF KPDF High Static Pressure Duct Wall-mounted KPDHF KAYF Ceiling & Floor...
  • Page 8 Amazon Unitario Top Discharge 2.2 Outdoor Units Table 1-2.4: Outdoor unit appearance 10/12HP 14/16/18HP 20/22HP 24/26/28/30/32HP (with single fan) (with single fan) (with dual fans) (with dual fans)

  • Page 9: Combination Ratio

    Maximum combination ratio Minimum Type combination ratio Standard indoor units only Amazon Unitario Top Discharge Series outdoor 150% units Notes: When fresh air processing units are installed together with standard indoor units, the total capacity of the fresh air processing units must not exceed 30% of the capacity of the outdoor unit and the combination ratio must not exceed 100%.

  • Page 10: Selection Procedure

    Amazon Unitario Top Discharge 4 Selection Procedure 4.1 Procedure Step 1: Establish design conditions Design temperature and humidity (indoor and outdoor) Required heat load of each room System peak load Piping length, level differences Indoor unit specifications (type and quantity) Step 2: Select indoor units Decide indoor unit safety factor...
  • Page 11 Amazon Unitario Top Discharge 4.2 Example The following is a selection example based on total heat load for cooling. Figure 1-5.1: Room plan Room H Room G Room A Room F Room B Room E Room C Room D Step 1: Establish design conditions Indoor air temperature 25°C DB, 18°C WB;...
  • Page 12 Amazon Unitario Top Discharge Table 1-5.2: Extract from medium static pressure duct (KPDF) cooling capacity table Indoor air temperature 14°C WB 16°C WB 18°C WB 19°C WB 20°C WB 22°C WB 24°C WB Capacity Model index 20°C DB 23°C DB 26°C DB...
  • Page 13 Amazon Unitario Top Discharge Table 1-5.5: Extract from Table 1-5.2 Combinations of Indoor and outdoor units Outdoor unit capacity Sum of capacity indexes of Maximum number of Capacity connected indoor units (standard connected indoor units index indoor units only) 50.0 250 to 750 56.0 280 to 840 59.0 295 to 885 67.0...
  • Page 14 Amazon Unitario Top Discharge Find the correction factor for piping length and level difference (“K1”) Figure 1-5.3: Amazon Unitario Top Discharge rate of change in cooling capacity K1 = 0.898 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200...
  • Page 15 Amazon Unitario Top Discharge...

  • Page 16: Table Of Contents

    Amazon Unitario Top Discharge Part 2 Outdoor Unit Engineering Data Specifications ..................16 Dimensions ..................19 Installation Space Requirements ............23 Piping Diagrams ...................24 Wiring Diagrams...................28 Electrical Characteristics ...............30 Functional Components and Safety Devices .........31 Capacity Tables ..................32 Operating Limits .................130 10 Sound Levels ..................131 11 Accessories ..................133...

  • Page 17: Specifications

    Amazon Unitario Top Discharge 1 Specifications 10-14HP Table 2-1.1: 10-14HP specifications Model name K2UF-280 DN4S K2UF-335 DN4S K2UF-400 DN4S Power supply V/Ph/Hz 380-415/3/50 Capacity 28.0 33.5 40.0 Cooling Power input 10.68 13.55 15.37 2.62 2.47 2.60 Capacity 28.0 33.5 40.0...
  • Page 18 Amazon Unitario Top Discharge 16-22HP Table 2-1.2: 16-22HP specifications Model name K2UF-450 DN4S K2UF-500 DN4S K2UF-560 DN4S K2UF-615 DN4S Power supply V/Ph/Hz 380-415/3/50 Capacity 45.0 50.0 56.0 59.0 Cooling Power input 20.96 28.09 34.22 35.41 2.15 1.78 1.64 1.67 Capacity 45.0...
  • Page 19 Amazon Unitario Top Discharge 24-32HP Table 2-1.3: 24-32HP specifications Model name K2UF-670 DN4S K2UF-730 DN4S K2UF-785 DN4S K2UF-850 DN4S K2UF-900 DN4S Power supply V/Ph/Hz 380-415/3/50 Capacity 67.0 73.0 75.50 85.00 85.00 Cooling Power input 36.71 34.63 37.27 44.88 44.88 1.83 2.11...

  • Page 20: Dimensions

    Amazon Unitario Top Discharge 2 Dimensions 10/12HP Figure 2-2.1: 10/12 dimensions (unit: mm) Detail R Table 2-2.1: 10/12HP connection piping diameter (unit: mm) Size 10HP 12HP Φ12.7 Φ15.9 Φ25.4 Φ28.6...
  • Page 21 Amazon Unitario Top Discharge 14/16/18HP Figure 2-2.2: 14/16/18HP dimensions (unit: mm) Check port (used to measure Check port (used to measure system pressure and charge system pressure and charge additional refrigerant in additional refrigerant maintenance process) maintenance process) Liquid pipe connection port (ΦA)
  • Page 22 Amazon Unitario Top Discharge 20/22HP Figure 2-2.3: 20/22HP dimensions (unit: mm) Check port (used to measure Check port (used to measure system pressure and charge system pressure and charge additional refrigerant in additional refrigerant maintenance process) maintenance process) Liquid pipe connection port (ΦA)
  • Page 23 Amazon Unitario Top Discharge 24/26/28/30/32HP Figure 2-2.4: 24/26/28/30/32HP dimensions (unit: mm) Check port (used to measure system pressure and charge additional refrigerant in maintenance process) Liquid pipe connection port (ΦA) Gas pipe connection port (ΦB) 1730 Detail R Table 2-2.4: 24/26/28/30/32HP connection piping diameter (unit: mm)

  • Page 24: Installation Space Requirements

    Amazon Unitario Top Discharge 3 Installation Space Requirements For single unit installation For single row installation Figure 2-3.1: Single unit installation (unit: mm) Figure 2-3.2: Single row installation (unit: mm) >1000 >1000 100-500 >1000 >1000 >1000 >1000 Front 100-500 Front >1000 >1000 For multi-row installation Figure 2-3.3: Multi-row installation (unit: mm) >1000...

  • Page 25: Piping Diagrams

    Amazon Unitario Top Discharge 4 Piping Diagrams 10/12HP Figure 2-4.1: 10/12HP piping diagram E S C EXVA EXVC T7C1 14/16/18HP Figure 2-4.2: 14/16/18HP piping diagram EXVA EXVC T7C1...
  • Page 26 Amazon Unitario Top Discharge 20/22/24HP Figure 2-4.3: 20/22/24HP piping diagram E S C EXVA T7C1 T7C2 26/28HP Figure 2-4.4: 26/28HP piping diagram EXVA EXVC T7C1 T7C2...
  • Page 27 Amazon Unitario Top Discharge 30/32HP Figure 2-4.5: 30/32HP piping diagram EXVA EXVC T7C1 T7C2 Legend Parts name Parts name Compressor Accumulator Discharge temperature switch Heat exchanger temperature sensor High pressure switch Outdoor ambient temperature sensor High pressure sensor Plate heat exchanger inlet temperature sensor...
  • Page 28 Amazon Unitario Top Discharge Key components: 1. Oil separator: Separates oil from gas refrigerant pumped out ofthe compressor and quickly returns it to the compressor. Separation efficiency is up to 99%. 2. Accumulator: Stores liquid refrigerant and oil to protect compressor from liquid hammering.

  • Page 29: Wiring Diagrams

    Amazon Unitario Top Discharge 5 Wiring Diagrams 10/12/14/16/18/20/22/24/26/28HP Figure 2-5.1: 10/12/14/16/18/20/22/24/26/28HP wiring diagram CN100 CN30 CN85 CN84 CN83 CN46 CN45 CN44 CN43 L-PRO CN19 CN41 H-PRO CN18 CN47 CN67_ EEVC T7C1 T7C2 H-YL1 CN67 CN17 N8_1 CN28 CN72 CN66_ T4 T3...
  • Page 30 Amazon Unitario Top Discharge 30/32HP Figure 2-5.2: 30/32HP wiring diagram CN100 CN30 CN85 CN84 CN83 CN46 CN45 CN44 CN43 L-PRO CN19 CN41 H-PRO CN18 CN47 CN67_ T7C1 T7C2 H-YL1 EEVC CN67 CN17 N8_1 CN28 CN72 CN66_ T4 T3 O-FAN EEVB...

  • Page 31: Electrical Characteristics

    Amazon Unitario Top Discharge 6 Electrical Characteristics Table 2-6.1: Outdoor unit electrical characteristics Power Supply Compressor Min. Max. Capacity Model Volts TOCA volts volts 10HP K2UF-280 DN4S 380~415 25.2 30.9 10.6 0.56 12HP K2UF-335 DN4S 380~415 26.4 31.5 15.4 0.56 14HP K2UF-400 DN4S 380~415 33.1...

  • Page 32: Functional Components And Safety Devices

    Amazon Unitario Top Discharge 7 Functional Components and Safety Devices Table 2-7.1: 10/12/14/16HP functional components and safety devices Item 10HP 12HP 14HP 16HP Discharge temperature switch Off: 115(±5) °C / On: 75(±15) °C Compressor top and discharge pipe Compressor 90°C = 5kΩ± temperature sensors Crankcase heater 30W×2...

  • Page 33: Capacity Tables

    Amazon Unitario Top Discharge 8 Capacity Tables 8.1 Cooling Capacity Tables Table 2-8.1: 10HP cooling capacity Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 24.6 4.36 29.3 5.33 34.0 5.71 35.3 5.94 37.0 6.11 37.9 6.65 38.9 6.69 24.6 4.36...
  • Page 34 Amazon Unitario Top Discharge Table 2-8.1: 10HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 20.8 3.68 24.8 4.58 28.8 5.47 30.8 5.87 32.8 6.32 35.3 6.56 36.1 6.76 20.8 3.75 24.8 4.64 28.8...
  • Page 35 Amazon Unitario Top Discharge Table 2-8.1: 10HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 17.0 2.97 20.3 3.56 23.6 4.20 25.2 4.58 26.8 4.87 30.1 5.60 33.4 6.42 17.0 2.99 20.3 3.60 23.6...
  • Page 36 Amazon Unitario Top Discharge Table 2-8.1: 10HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 13.2 2.33 15.8 2.74 18.3 3.10 19.6 3.32 20.9 3.55 23.4 4.06 26.0 4.67 13.2 2.35 15.8 2.75 18.3...
  • Page 37 Amazon Unitario Top Discharge Table 2-8.1: 10HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 1.73 11.3 2.00 13.1 2.30 14.0 2.40 14.9 2.54 16.7 2.88 18.6 3.11 1.74 11.3 2.04 13.1 2.32 14.0...
  • Page 38 Amazon Unitario Top Discharge Table 2-8.2: 12HP cooling capacity Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 29.4 5.54 35.1 6.76 40.7 7.25 42.2 7.54 44.3 7.75 45.3 8.43 46.5 8.49 29.4 5.54 35.1 6.89 40.7 7.25...
  • Page 39 Amazon Unitario Top Discharge Table 2-8.2: 12HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 24.9 4.67 29.7 5.81 34.5 6.94 36.9 7.45 39.2 8.01 42.2 8.32 43.2 8.58 24.9 4.76 29.7 5.89 34.5...
  • Page 40 Amazon Unitario Top Discharge Table 2-8.2: 12HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 20.3 3.76 24.3 4.51 28.2 5.32 30.2 5.81 32.1 6.18 36.0 7.11 40.0 8.14 20.3 3.80 24.3 4.56 28.2...
  • Page 41 Amazon Unitario Top Discharge Table 2-8.2: 12HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 15.8 2.96 18.9 3.47 21.9 3.93 23.5 4.22 25.0 4.50 28.0 5.15 31.1 5.92 15.8 2.98 18.9 3.49 21.9...
  • Page 42 Amazon Unitario Top Discharge Table 2-8.2: 12HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 11.3 2.19 13.5 2.54 15.7 2.91 16.8 3.05 17.8 3.22 20.0 3.66 22.3 3.94 11.3 2.21 13.5 2.59 15.7...
  • Page 43 Amazon Unitario Top Discharge Table 2-8.3: 14HP cooling capacity Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 35.1 6.28 41.9 7.67 48.6 8.22 50.4 8.56 52.9 8.80 54.1 9.57 55.5 9.63 35.1 6.28 41.9 7.82 48.6 8.22...
  • Page 44 Amazon Unitario Top Discharge Table 2-8.3: 14HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 29.7 5.30 35.4 6.60 41.1 7.87 44.0 8.45 46.9 9.09 50.4 9.44 51.6 9.74 29.7 5.40 35.4 6.68 41.1...
  • Page 45 Amazon Unitario Top Discharge Table 2-8.3: 14HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 24.3 4.27 29.0 5.12 33.7 6.04 36.0 6.59 38.3 7.01 43.0 8.06 47.7 9.24 24.3 4.31 29.0 5.18 33.7...
  • Page 46 Amazon Unitario Top Discharge Table 2-8.3: 14HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 18.9 3.36 22.6 3.94 26.1 4.46 28.0 4.78 29.9 5.11 33.4 5.84 37.1 6.72 18.9 3.39 22.6 3.96 26.1...
  • Page 47 Amazon Unitario Top Discharge Table 2-8.3: 14HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 13.5 2.49 16.1 2.88 18.7 3.31 20.0 3.46 21.3 3.65 23.9 4.15 26.6 4.47 13.5 2.51 16.1 2.94 18.7...
  • Page 48 Amazon Unitario Top Discharge Table 2-8.4: 16HP cooling capacity Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 39.5 8.57 47.1 10.46 54.6 11.21 56.7 11.67 59.5 12.00 60.9 13.05 62.4 13.13 39.5 8.57 47.1 10.66 54.6 11.21...
  • Page 49 Amazon Unitario Top Discharge Table 2-8.4: 16HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 33.4 7.23 39.9 9.00 46.3 10.74 49.5 11.52 52.7 12.40 56.7 12.88 58.0 13.27 33.4 7.37 39.9 9.11 46.3...
  • Page 50 Amazon Unitario Top Discharge Table 2-8.4: 16HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 27.3 5.82 32.6 6.98 37.9 8.24 40.5 8.99 43.1 9.56 48.4 11.00 53.7 12.59 27.3 5.87 32.6 7.06 37.9...
  • Page 51 Amazon Unitario Top Discharge Table 2-8.4: 16HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 21.2 4.58 25.4 5.37 29.4 6.08 31.5 6.52 33.6 6.96 37.6 7.97 41.8 9.16 21.2 4.62 25.4 5.39 29.4...
  • Page 52 Amazon Unitario Top Discharge Table 2-8.4: 16HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 15.2 3.39 18.2 3.92 21.1 4.51 22.5 4.72 23.9 4.98 26.8 5.66 29.9 6.10 3.20 15.2 3.42 18.2 4.00...
  • Page 53 Amazon Unitario Top Discharge Table 2-8.5: 18HP cooling capacity Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 43.9 11.48 52.3 14.01 60.7 15.02 63.0 15.63 66.1 16.08 67.7 17.48 69.4 17.59 43.9 11.48 52.3 14.29 60.7 15.02...
  • Page 54 Amazon Unitario Top Discharge Table 2-8.5: 18HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 37.1 9.68 44.3 12.06 51.4 14.39 55.0 15.44 58.6 16.62 63.0 17.26 64.5 17.79 37.1 9.87 44.3 12.21 51.4...
  • Page 55 Amazon Unitario Top Discharge Table 2-8.5: 18HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 30.4 7.80 36.3 9.36 42.1 11.04 45.0 12.05 47.9 12.82 53.7 14.74 59.6 16.87 30.4 7.87 36.3 9.46 42.1...
  • Page 56 Amazon Unitario Top Discharge Table 2-8.5: 18HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 23.6 6.14 28.2 7.19 32.7 8.15 35.0 8.74 37.3 9.33 41.8 10.67 46.4 12.27 23.6 6.19 28.2 7.23 32.7...
  • Page 57 Amazon Unitario Top Discharge Table 2-8.5: 18HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 16.9 4.55 20.2 5.26 23.4 6.04 25.0 6.32 26.6 6.67 29.8 7.59 33.2 8.18 16.9 4.58 20.2 5.36 23.4...
  • Page 58 Amazon Unitario Top Discharge Table 2-8.6: 20HP cooling capacity Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 49.2 13.99 58.6 17.07 68.0 18.30 70.6 19.05 74.0 19.59 75.8 21.30 77.7 21.44 49.2 13.99 58.6 17.41 68.0 18.30...
  • Page 59 Amazon Unitario Top Discharge Table 2-8.6: 20HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 41.6 11.80 49.6 14.69 57.6 17.53 61.6 18.81 65.6 20.24 70.6 21.02 72.2 21.67 41.6 12.03 49.6 14.88 57.6...
  • Page 60 Amazon Unitario Top Discharge Table 2-8.6: 20HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 34.0 9.50 40.6 11.40 47.2 13.45 50.4 14.68 53.6 15.61 60.2 17.95 66.8 20.56 34.0 9.59 40.6 11.52 47.2...
  • Page 61 Amazon Unitario Top Discharge Table 2-8.6: 20HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 26.4 7.47 31.6 8.77 36.6 9.93 39.2 10.65 41.8 11.37 46.8 13.00 52.0 14.95 26.4 7.54 31.6 8.81 36.6...
  • Page 62 Amazon Unitario Top Discharge Table 2-8.6: 20HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 18.9 5.54 22.6 6.40 26.2 7.36 28.0 7.70 29.8 8.13 33.4 9.24 37.2 9.96 18.9 5.58 22.6 6.53 26.2...
  • Page 63 Amazon Unitario Top Discharge Table 2-8.7: 22HP cooling capacity Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 51.8 14.47 61.7 17.67 71.6 18.94 74.4 19.71 78.0 20.27 79.9 22.04 81.9 22.18 51.8 14.47 61.7 18.01 71.6 18.94...
  • Page 64 Amazon Unitario Top Discharge Table 2-8.7: 22HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 43.8 12.21 52.3 15.20 60.7 18.13 64.9 19.46 69.1 20.94 74.4 21.75 76.1 22.42 43.8 12.44 52.3 15.39 60.7...
  • Page 65 Amazon Unitario Top Discharge Table 2-8.7: 22HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 35.8 9.83 42.8 11.80 49.7 13.92 53.1 15.19 56.5 16.15 63.4 18.57 70.4 21.27 35.8 9.92 42.8 11.92 49.7...
  • Page 66 Amazon Unitario Top Discharge Table 2-8.7: 22HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 27.8 7.73 33.3 9.07 38.6 10.28 41.3 11.02 44.0 11.76 49.3 13.45 54.8 15.47 27.8 7.80 33.3 9.11 38.6...
  • Page 67 Amazon Unitario Top Discharge Table 2-8.7: 22HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 19.9 5.73 23.8 6.63 27.6 7.61 29.5 7.97 31.4 8.41 35.2 9.56 39.2 10.31 19.9 5.77 23.8 6.76 27.6...
  • Page 68 Amazon Unitario Top Discharge Table 2-8.8: 24HP cooling capacity Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 58.9 15.00 70.1 18.32 81.4 19.63 84.5 20.43 88.5 21.01 90.7 22.85 93.0 22.99 58.9 15.00 70.1 18.67 81.4 19.63...
  • Page 69 Amazon Unitario Top Discharge Table 2-8.8: 24HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 49.8 12.66 59.3 15.76 68.9 18.80 73.7 20.18 78.5 21.71 84.5 22.55 86.4 23.25 49.8 12.90 59.3 15.96 68.9...
  • Page 70 Amazon Unitario Top Discharge Table 2-8.8: 24HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 40.7 10.19 48.6 12.23 56.5 14.43 60.3 15.75 64.1 16.75 72.0 19.26 79.9 22.05 40.7 10.29 48.6 12.36 56.5...
  • Page 71 Amazon Unitario Top Discharge Table 2-8.8: 24HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 31.6 8.02 37.8 9.40 43.8 10.65 46.9 11.42 50.0 12.19 56.0 13.95 62.2 16.04 31.6 8.08 37.8 9.45 43.8...
  • Page 72 Amazon Unitario Top Discharge Table 2-8.8: 24HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 22.6 5.94 27.0 6.87 31.3 7.89 33.5 8.26 35.7 8.72 40.0 9.92 44.5 10.69 22.6 5.98 27.0 7.01 31.3...
  • Page 73 Amazon Unitario Top Discharge Table 2-8.9: 26HP cooling capacity Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 64.1 14.15 76.4 17.28 88.6 18.52 92.0 19.27 96.5 19.82 98.8 21.55 101.3 21.69 64.1 14.15 76.4 17.61 88.6 18.52...
  • Page 74 Amazon Unitario Top Discharge Table 2-8.9: 26HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 54.2 11.94 64.7 14.86 75.1 17.74 80.3 19.04 85.5 20.48 92.0 21.27 94.1 21.93 54.2 12.17 64.7 15.05 75.1...
  • Page 75 Amazon Unitario Top Discharge Table 2-8.9: 26HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 44.3 9.62 52.9 11.54 61.5 13.61 65.7 14.85 69.9 15.80 78.5 18.17 87.1 20.80 44.3 9.70 52.9 11.66 61.5...
  • Page 76 Amazon Unitario Top Discharge Table 2-8.9: 26HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 34.4 7.56 41.2 8.87 47.7 10.05 51.1 10.78 54.5 11.50 61.0 13.16 67.8 15.13 34.4 7.63 41.2 8.91 47.7...
  • Page 77 Amazon Unitario Top Discharge Table 2-8.9: 26HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 24.6 5.60 29.5 6.48 34.2 7.45 36.5 7.80 38.8 8.23 43.5 9.35 48.5 10.08 24.6 5.64 29.5 6.61 34.2...
  • Page 78 Amazon Unitario Top Discharge Table 2-8.10: 28HP cooling capacity Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 66.3 15.23 79.0 18.59 91.7 19.93 95.2 20.74 99.8 21.33 102.2 23.20 104.8 23.34 66.3 15.23 79.0 18.96 91.7 19.93...
  • Page 79 Amazon Unitario Top Discharge Table 2-8.10: 28HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 56.1 12.85 66.9 16.00 77.7 19.09 83.1 20.49 88.4 22.04 95.2 22.90 97.3 23.60 56.1 13.10 66.9 16.20 77.7...
  • Page 80 Amazon Unitario Top Discharge Table 2-8.10: 28HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 45.8 10.35 54.7 12.42 63.6 14.65 68.0 15.98 72.3 17.00 81.2 19.55 90.1 22.39 45.8 10.44 54.7 12.55 63.6...
  • Page 81 Amazon Unitario Top Discharge Table 2-8.10: 28HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 35.6 8.14 42.6 9.55 49.3 10.82 52.9 11.60 56.4 12.38 63.1 14.16 70.1 16.28 35.6 8.21 42.6 9.59 49.3...
  • Page 82 Amazon Unitario Top Discharge Table 2-8.10: 28HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 25.5 6.03 30.5 6.97 35.3 8.01 37.8 8.39 40.2 8.85 45.0 10.07 50.2 10.85 25.5 6.07 30.5 7.12 35.3...
  • Page 83 Amazon Unitario Top Discharge Table 2-8.11: 30HP cooling capacity Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 74.7 18.34 88.9 22.39 103.2 24.00 107.2 24.98 112.3 25.69 115.0 27.93 117.9 28.11 74.7 18.34 88.9 22.82 103.2 24.00...
  • Page 84 Amazon Unitario Top Discharge Table 2-8.11: 30HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 63.1 15.47 75.3 19.26 87.4 22.98 93.5 24.67 99.6 26.54 107.2 27.57 109.6 28.42 63.1 15.77 75.3 19.51 87.4...
  • Page 85 Amazon Unitario Top Discharge Table 2-8.11: 30HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 51.6 12.46 61.6 14.95 71.6 17.64 76.5 19.25 81.4 20.47 91.4 23.54 101.4 26.96 51.6 12.58 61.6 15.11 71.6...
  • Page 86 Amazon Unitario Top Discharge Table 2-8.11: 30HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 40.1 9.80 48.0 11.49 55.6 13.02 59.5 13.96 63.4 14.90 71.0 17.05 78.9 19.60 40.1 9.88 48.0 11.55 55.6...
  • Page 87 Amazon Unitario Top Discharge Table 2-8.11: 30HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 28.7 7.26 34.3 8.40 39.8 9.65 42.5 10.10 45.2 10.66 50.7 12.12 56.5 13.06 28.7 7.31 34.3 8.57 39.8...
  • Page 88 Amazon Unitario Top Discharge Table 2-8.12: 32HP cooling capacity Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 74.7 18.34 88.9 22.39 103.2 24.00 107.2 24.98 112.3 25.69 115.0 27.93 117.9 28.11 74.7 18.34 88.9 22.82 103.2 24.00...
  • Page 89 Amazon Unitario Top Discharge Table 2-8.12: 32HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 63.1 15.47 75.3 19.26 87.4 22.98 93.5 24.67 99.6 26.54 107.2 27.57 109.6 28.42 63.1 15.77 75.3 19.51 87.4...
  • Page 90 Amazon Unitario Top Discharge Table 2-8.12: 32HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 51.6 12.46 61.6 14.95 71.6 17.64 76.5 19.25 81.4 20.47 91.4 23.54 101.4 26.96 51.6 12.58 61.6 15.11 71.6...
  • Page 91 Amazon Unitario Top Discharge Table 2-8.12: 32HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 40.1 9.80 48.0 11.49 55.6 13.02 59.5 13.96 63.4 14.90 71.0 17.05 78.9 19.60 40.1 9.88 48.0 11.55 55.6...
  • Page 92 Amazon Unitario Top Discharge Table 2-8.12: 32HP cooling capacity (continued) Indoor air temp. (°C DB/WD) Outdoor 20.8/14 23.3/16 25.8/18 27/19 28.2/20 30.7/22 32/24 air temp. (°CDB) 28.7 7.26 34.3 8.40 39.8 9.65 42.5 10.10 45.2 10.66 50.7 12.12 56.5 13.06 28.7 7.31 34.3 8.57 39.8...
  • Page 93 Amazon Unitario Top Discharge 8.2 Heating Capacity Tables Table 2-8.13: 10HP heating capacity Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 24.57 7.49 24.47 7.62 23.96 7.92 23.88 8.15 23.86 8.37 23.72 8.50 -19.8 25.83 7.69 25.73 7.85...
  • Page 94 Amazon Unitario Top Discharge Table 2-8.13: 10HP heating capacity (continued) Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 24.66 10.50 24.56 10.60 24.46 10.66 24.46 10.78 24.46 10.84 24.36 10.98 -19.8 25.80 10.50 25.70 10.61 25.60...
  • Page 95 Amazon Unitario Top Discharge Table 2-8.13: 10HP heating capacity (continued) Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 25.20 11.25 23.70 10.41 22.10 10.23 21.20 10.04 20.40 9.92 18.70 9.54 -19.8 25.20 10.71 23.70 9.86 22.10...
  • Page 96 Amazon Unitario Top Discharge Table 2-8.14: 12HP heating capacity Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 29.25 9.94 29.13 10.11 28.53 10.51 28.43 10.81 28.41 11.11 28.24 11.28 -19.8 30.75 10.20 30.63 10.42 30.51 10.95...
  • Page 97 Amazon Unitario Top Discharge Table 2-8.14: 12HP heating capacity (continued) Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 29.35 13.93 29.23 14.06 29.11 14.15 29.11 14.30 29.11 14.39 28.99 14.57 -19.8 30.71 13.93 30.60 14.08 30.48...
  • Page 98 Amazon Unitario Top Discharge Table 2-8.14: 12HP heating capacity (continued) Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 30.00 14.93 28.21 13.81 26.31 13.57 25.24 13.32 24.29 13.16 22.26 12.67 -19.8 30.00 14.22 28.21 13.08 26.31...
  • Page 99 Amazon Unitario Top Discharge Table 2-8.15: 14HP heating capacity Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 35.10 11.56 34.96 11.76 34.23 12.22 34.12 12.57 34.09 12.92 33.89 13.12 -19.8 36.90 11.86 36.76 12.12 36.61 12.73...
  • Page 100 Amazon Unitario Top Discharge Table 2-8.15: 14HP heating capacity (continued) Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 35.22 16.19 35.08 16.35 34.94 16.45 34.94 16.63 34.94 16.73 34.79 16.94 -19.8 36.86 16.19 36.71 16.37 36.57...
  • Page 101 Amazon Unitario Top Discharge Table 2-8.15: 14HP heating capacity (continued) Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 36.00 17.36 33.86 16.05 31.57 15.78 30.29 15.49 29.14 15.30 26.71 14.73 -19.8 36.00 16.53 33.86 15.21 31.57...
  • Page 102 Amazon Unitario Top Discharge Table 2-8.16: 16HP heating capacity Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 39.00 14.06 38.85 14.30 38.04 14.87 37.91 15.29 37.88 15.71 37.66 15.96 -19.8 41.00 14.43 40.84 14.74 40.68 15.48...
  • Page 103 Amazon Unitario Top Discharge Table 2-8.16: 16HP heating capacity (continued) Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 39.13 19.70 38.98 19.89 38.82 20.01 38.82 20.23 38.82 20.35 38.66 20.62 -19.8 40.95 19.70 40.79 19.92 40.63...
  • Page 104 Amazon Unitario Top Discharge Table 2-8.16: 16HP heating capacity (continued) Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 40.00 21.12 37.62 19.53 35.08 19.20 33.65 18.85 32.38 18.62 29.68 17.92 -19.8 40.00 20.11 37.62 18.50 35.08...
  • Page 105 Amazon Unitario Top Discharge Table 2-8.17: 18HP heating capacity Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 43.68 15.29 43.51 15.55 42.60 16.17 42.46 16.63 42.42 17.08 42.18 17.35 -19.8 45.92 15.69 45.74 16.03 45.56 16.83...
  • Page 106 Amazon Unitario Top Discharge Table 2-8.17: 18HP heating capacity (continued) Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 43.83 21.42 43.65 21.63 43.48 21.76 43.48 21.99 43.48 22.13 43.30 22.41 -19.8 45.87 21.42 45.69 21.66 45.51...
  • Page 107 Amazon Unitario Top Discharge Table 2-8.17: 18HP heating capacity (continued) Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 44.80 22.96 42.13 21.24 39.29 20.87 37.69 20.49 36.27 20.24 33.24 19.48 -19.8 44.80 21.86 42.13 20.11 39.29...
  • Page 108 Amazon Unitario Top Discharge Table 2-8.18: 20HP heating capacity Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 49.14 16.30 48.94 16.58 47.93 17.24 47.77 17.72 47.73 18.21 47.45 18.50 -19.8 51.66 16.72 51.46 17.08 51.26 17.94...
  • Page 109 Amazon Unitario Top Discharge Table 2-8.18: 20HP heating capacity (continued) Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 50.40 24.48 47.40 22.64 44.20 22.25 42.40 21.84 40.80 21.57 37.40 20.76 -19.8 50.40 23.31 47.40 21.44 44.20...
  • Page 110 Amazon Unitario Top Discharge Table 2-8.18: 20HP heating capacity (continued) Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 50.40 24.48 47.40 22.64 44.20 22.25 42.40 21.84 40.80 21.57 37.40 20.76 -19.8 50.40 23.31 47.40 21.44 44.20...
  • Page 111 Amazon Unitario Top Discharge Table 2-8.19: 22HP heating capacity Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 51.64 19.69 51.43 20.03 50.36 20.83 50.19 21.42 50.15 22.00 49.86 22.35 -19.8 54.28 20.21 54.07 20.64 53.86 21.68...
  • Page 112 Amazon Unitario Top Discharge Table 2-8.19: 22HP heating capacity (continued) Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 51.81 27.59 51.60 27.86 51.39 28.02 51.39 28.33 51.39 28.50 51.18 28.87 -19.8 54.22 27.59 54.01 27.89 53.80...
  • Page 113 Amazon Unitario Top Discharge Table 2-8.19: 22HP heating capacity (continued) Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 52.96 29.57 49.80 27.35 46.44 26.88 44.55 26.39 42.87 26.07 39.30 25.09 -19.8 52.96 28.16 49.80 25.91 46.44...
  • Page 114 Amazon Unitario Top Discharge Table 2-8.20: 24HP heating capacity Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 58.50 21.43 58.27 21.80 57.06 22.66 56.87 23.31 56.82 23.95 56.49 24.32 -19.8 61.50 21.99 61.26 22.46 61.02 23.59...
  • Page 115 Amazon Unitario Top Discharge Table 2-8.20: 24HP heating capacity (continued) Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 58.70 30.02 58.46 30.32 58.23 30.49 58.23 30.83 58.23 31.01 57.99 31.41 -19.8 61.43 30.02 61.19 30.35 60.95...
  • Page 116 Amazon Unitario Top Discharge Table 2-8.20: 24HP heating capacity (continued) Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 60.00 32.18 56.43 29.77 52.62 29.25 50.48 28.72 48.57 28.37 44.52 27.30 -19.8 60.00 30.65 56.43 28.19 52.62...
  • Page 117 Amazon Unitario Top Discharge Table 2-8.21: 26HP heating capacity Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 63.58 21.83 63.32 22.20 62.00 23.09 61.80 23.74 61.74 24.39 61.38 24.78 -19.8 66.83 22.40 66.57 22.88 66.31 24.03...
  • Page 118 Amazon Unitario Top Discharge Table 2-8.21: 26HP heating capacity (continued) Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 63.79 30.58 63.53 30.88 63.27 31.06 63.27 31.40 63.27 31.59 63.01 32.00 -19.8 66.75 30.58 66.49 30.92 66.23...
  • Page 119 Amazon Unitario Top Discharge Table 2-8.21: 26HP heating capacity (continued) Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 65.20 32.78 61.32 30.32 57.18 29.80 54.85 29.26 52.78 28.90 48.38 27.81 -19.8 65.20 31.22 61.32 28.72 57.18...
  • Page 120 Amazon Unitario Top Discharge Table 2-8.22: 28HP heating capacity Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 65.65 24.95 65.38 25.38 64.02 26.39 63.81 27.13 63.76 27.88 63.38 28.32 -19.8 69.00 25.60 68.74 26.15 68.47 27.47...
  • Page 121 Amazon Unitario Top Discharge Table 2-8.22: 28HP heating capacity (continued) Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 65.87 34.95 65.60 35.29 65.33 35.50 65.33 35.89 65.33 36.10 65.07 36.57 -19.8 68.93 34.95 68.66 35.34 68.39...
  • Page 122 Amazon Unitario Top Discharge Table 2-8.22: 28HP heating capacity (continued) Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 67.32 37.47 63.32 34.65 59.04 34.06 56.64 33.44 54.50 33.02 49.96 31.78 -19.8 67.32 35.68 63.32 32.82 59.04...
  • Page 123 Amazon Unitario Top Discharge Table 2-8.23: 30HP heating capacity Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 74.11 23.55 73.81 23.96 72.27 24.91 72.03 25.62 71.97 26.32 71.55 26.74 -19.8 77.90 24.17 77.60 24.69 77.29 25.93...
  • Page 124 Amazon Unitario Top Discharge Table 2-8.23: 30HP heating capacity (continued) Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 74.36 33.00 74.05 33.32 73.75 33.52 73.75 33.89 73.75 34.09 73.45 34.53 -19.8 77.81 33.00 77.51 33.36 77.21...
  • Page 125 Amazon Unitario Top Discharge Table 2-8.23: 30HP heating capacity (continued) Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 76.00 35.37 71.48 32.72 66.65 32.16 63.94 31.57 61.52 31.18 56.40 30.01 -19.8 76.00 33.69 71.48 30.99 66.65...
  • Page 126 Amazon Unitario Top Discharge Table 2-8.24: 32HP heating capacity Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 78.01 25.96 77.69 26.41 76.08 27.46 75.82 28.23 75.76 29.01 75.32 29.47 -19.8 82.00 26.64 81.68 27.21 81.36 28.58...
  • Page 127 Amazon Unitario Top Discharge Table 2-8.24: 32HP heating capacity (continued) Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 78.27 36.37 77.95 36.73 77.63 36.94 77.63 37.35 77.63 37.57 77.32 38.06 -19.8 81.90 36.37 81.59 36.77 81.27...
  • Page 128 Amazon Unitario Top Discharge Table 2-8.24: 32HP heating capacity (continued) Indoor air temp. °C DB Outdoor 16.0 18.0 20.0 21.0 22.0 24.0 air temp. °C DB °C WB -25.4 80.00 38.98 75.24 36.06 70.16 35.44 67.30 34.79 64.76 34.36 59.37 33.07 -19.8 80.00 37.12 75.24 34.15 70.16...
  • Page 129 Amazon Unitario Top Discharge 8.3 Capacity Correction Factors for Piping Length and Level Difference Figure 2-8.1: Rate of change in cooling capacity Figure 2-8.2: Rate of change in heating capacity 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200...
  • Page 130 Amazon Unitario Top Discharge 8.4 Capacity Correction Factors for Frost Accumulation The heating capacity tables do not take account of the reduction in capacity when frost has accumulated or while the de- frosting operation is in progress. If snow has accumulated against the outside surface of the outdoor unit heat exchanger heating capacity is reduced.

  • Page 131: Operating Limits

    Amazon Unitario Top Discharge 9 Operating Limits Figure 2-9.1: Cooling operating limits Figure 2-9.2: Heating operating limits 10 15 20 25 30 35 10 15 20 25 30 35 Indoor temperature ( C DB) Indoor temperature ( C DB) Notes: These figures assume the following operating conditions: ƒ...

  • Page 132: Sound Levels

    Amazon Unitario Top Discharge 10 Sound Levels 10.1 Overall Table 2-10.1: Sound pressure level Model dB(A) 10HP 12HP 14HP 16HP 18HP 20HP 22HP 24HP 26HP 28HP 30HP 32HP Notes: 1. Sound pressure level is measured at a position 1m in front of the unit and 1.3m above the floor in a semi-anechoic chamber. During in-situ operation, sound pressure levels may be higher as a result of ambient noise. Figure 2-10.1: Sound pressure level measurement (unit: mm) Front 1000...
  • Page 133 Amazon Unitario Top Discharge 10.2 Octave Band Levels Figure 2-10.2 10HP octave band level Figure 2-10.3 12/14HP octave band level 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 1000 2000 4000 8000...

  • Page 134: Accessories

    Amazon Unitario Top Discharge Figure 2-10.8 26/28/30/32HP octave band level 11 Accessories 11.1 Standard Accessories Table 2-11.1: Standard accessories Name Shape Quantity Function Outdoor unit installation manual Outdoor unit owner’s manual Indoor unit owner’s manual Flat-blade screwdriver Adjusting indoor and outdoor unit dial switches 90°elbow...
  • Page 135 Amazon Unitario Top Discharge Part 3 System Design and Installation 1 Preface to Part 3 ................... 135 2 Unit Placement and Installation ............136 3 Outdoor Unit Ducting and Shielding ............. 139 4 Refrigerant Piping Design ..............145 5 Refrigerant Piping Installation .............. 154 6 Drain Piping ..................

  • Page 136: Preface To Part 3

    The information contained in this Engineering Data Book may primarily be of use during the system design stage of a Kaysun Amazon Unitario Top Discharge Series VRF project. Additional important information which may primarily be of use during field installation has been placed in boxes, such as the example below, titled “Notes for installers”.

  • Page 137: Unit Placement And Installation

    Amazon Unitario Top Discharge 2 Unit Placement and Installation 2.1 Outdoor Units 2.1.1 Placement considerations Placement of outdoor units should take account of the following considerations: Air conditioners should not be exposed to direct radiation from a high-temperature heat source.
  • Page 138 Amazon Unitario Top Discharge 2.1.3 Base structures Outdoor unit base structure design should take account of the following considerations: A solid base prevents excess vibration and noise. Outdoor unit bases should be constructed on solid ground or on ƒ structures of sufficient strength to support the units’ weight.
  • Page 139 Amazon Unitario Top Discharge 2.1.5 Hoisting Notes for installers  Do not remove any packaging before hoisting. If units are not packaged or if the packaging is damaged, use ƒ suitable boards or packing material to protect the units. Hoist one unit at a time, using two ropes to ensure stability.

  • Page 140: Outdoor Unit Ducting And Shielding

    Amazon Unitario Top Discharge 3 Outdoor Unit Ducting and Shielding 3.1 Ducting Requirements Depending on the height of adjacent walls relative to the height of the units, ducting may be required to ensure proper air discharge. In the situation depicted in Figure 3-3.1, the vertical section of ducting should be at least H-h high.
  • Page 141 Amazon Unitario Top Discharge 3.3 Ducting for 10HP and 12HP Units 3.3.1 Option A – Transverse ducting Figure 3-3.2: Transverse ducting for 8HP, 10HP and 12HP units (unit: mm) Table 3-3.2: External static pressure Table 3-3.1: Duct dimensions Dimensions (mm)
  • Page 142 Amazon Unitario Top Discharge Ducting for 14HP, 16HP and 18HP Units 3.3.3 Option A – Transverse ducting Figure 3-3.4: Transverse ducting for 14HP,16HP and 18HP units (unit: mm) Support Radius Radius θ Air outlet louver Table 3-3.5: Duct dimensions Table 3-3.6: External static pressure...
  • Page 143 Amazon Unitario Top Discharge Ducting for 20HP and 22HP Units 3.3.5 Option A – Transverse ducting Figure 3-3.6: Transverse ducting for 20HP and 22HP units (unit: mm) Support 1290 Radius Radius θ Air outlet louver Table 3-3.9: Duct dimensions Table 3-3.10: External static pressure...
  • Page 144 Amazon Unitario Top Discharge Ducting for 24HP, 26HP, 28HP, 30HP and 32HP Units 3.3.7 Transverse ducting only Figure 3-3.8: Transverse ducting for 24HP, 26HP, 28HP, 30HP and 32HP units (unit: mm) Support Radius 1653 Radius θ Air outlet louver Table 3-3.13: Duct dimensions Table 3-3.14: External static pressure...
  • Page 145 Amazon Unitario Top Discharge 3.4 Fan Performance The default external static pressure of outdoor units’ air outlets is zero. With the steel mesh cover removed the external static pressure is 20Pa. Figure 3-3.9: 10-12HP units fan performance Figure 3-3.12: 24-28HP units fan performance...

  • Page 146: Refrigerant Piping Design

    Amazon Unitario Top Discharge 3.5 Snow Shielding In areas of high snowfall, snow shields should be installed on air inlets and outlets to prevent snow from entering the units. Additionally, the height of the base structures should be increased so as to raise the units further off the ground.
  • Page 147 Amazon Unitario Top Discharge 4.3 Permitted Piping Lengths and Level Differences The piping length and level difference requirements that apply are summarized in Table 3-4.3 and are fully described as follows (refer to Figure 3-4.2): 1. Requirement 1: The total length of piping in one refrigerant system should not exceed 1000m. When calculating the...
  • Page 148 Amazon Unitario Top Discharge Figure 3-4.2: Permitted refrigerant piping lengths and level differences Outdoor unit (56) (56) (56) (56) Equivalent length of piping between farthest indoor unit and outdoorunitL≤200m Piping between farthest indoor unit and first indoor branch joint≤40m (56)
  • Page 149 Amazon Unitario Top Discharge 4.4 Selecting Piping Diameters Tables 3-4.4 to 3-4.8, below, specify the required pipe diameters for the indoor and outdoor piping. The main pipe (L1) and first indoor branch joint (A) should be sized according to whichever of Tables 3-4.4 and 3-4.5 indicates the larger size.
  • Page 150 Amazon Unitario Top Discharge Table 3-4.5: Main pipe ) and first indoor branch joint (A) Equivalent length of all liquid pipes < 90m Equivalent length of all liquid pipes ≥ 90m Capacity of outdoor unit Gas pipe (mm) Liquid pipe (mm)
  • Page 151 Amazon Unitario Top Discharge 4.5 Refrigerant Piping Selection Example The example below illustrates the piping selection procedure for a system consisting of one outdoor unit (16HP) and 10 indoor units. The system’s equivalent length of all liquid pipes is in excess of 90m; the piping between the farthest indoor unit and the first indoor branch joint is less than 40m in length;...
  • Page 152 Amazon Unitario Top Discharge 4.6 Branch Joints Branch joint design should take account of the following: U-shaped branch joints should be used – tee joints are not suitable. Branch joint dimensions are given in Tables 3-4.7. ƒ To ensure even distribution of refrigerant, branch joints should not be installed within 500mm of a 90° bend, another ƒ...
  • Page 153 Amazon Unitario Top Discharge Table 3-4.7: Indoor branch joint dimensions (unit: mm) Model Gas side joints Liquid side joints KCMI 112 KCMI 212 KCMI 312 KCMI 412 KCMI 512...
  • Page 154 Amazon Unitario Top Discharge 4.7 Refrigerant Leakage Precautions R410A refrigerant is not flammable in air at temperatures up to 100°C at atmospheric pressure and is generally considered a safe substance to use in air conditioning systems. Nevertheless, precautions should be taken to avoid danger to life in the unlikely event of a major refrigerant leakage.

  • Page 155: Refrigerant Piping Installation

    Amazon Unitario Top Discharge 5 Refrigerant Piping Installation 5.1 Procedure and Principles 5.1.1 Installation procedure Notes for installers  Installation of the refrigerant piping system should proceed in the following order: Pipe Pipe brazing and Gastightness Joint Pipe flushing Vacuum drying...
  • Page 156 Amazon Unitario Top Discharge 5.2 Storing Copper Piping 5.2.1 Pipe delivery, storage and sealing  Notes for installers Ensure that piping does not get bent or deformed during delivery or whilst stored. ƒ On construction sites store piping in a designated location.
  • Page 157 Amazon Unitario Top Discharge 5.3.3 Expanding copper piping ends  Notes for installers Ends of copper piping can be expanded so that another length of piping can be inserted and the joint brazed. ƒ Insert the expanding head of the pipe expander into the pipe. After completing pipe expansion, rotate the ƒ...
  • Page 158 Amazon Unitario Top Discharge 5.3.5 Bending piping Bending copper piping reduces the number of brazed joints required and can improve quality and save material. Notes for installers  Piping bending methods Hand bending is suitable for thin copper piping (Ф6. 35mm - Ф12. 7mm).
  • Page 159 Amazon Unitario Top Discharge 5.5 Brazing Care must be taken to prevent oxide forming on the inside of copper piping during brazing. The presence of oxide in a refrigerant system adversely affects the operation of valves and compressors, potentially leading to low efficiency or even compressor failure.
  • Page 160 Amazon Unitario Top Discharge … box continued from previous page Piping orientation during brazing Brazing should be conducted downwards or horizontally to avoid filler leakage. Figure 3-5.6: Piping orientation during brazing Brazing Brazing Brazing Piping overlap during brazing Table 3-5.3 specifies the minimum permissible piping overlap and the range of permissible gap sizes for brazed joints on piping of different diameters.
  • Page 161 Amazon Unitario Top Discharge 5.6 Branch Joints Notes for installers  Figure 3-5.8: Branch joint orientation Use U-shaped branch joints as specified on the ƒ construction drawings – do not replace U-shaped branch joints with tee joints. Indoor branch joints may be installed either horizontally ƒ...
  • Page 162 Amazon Unitario Top Discharge 5.7.2 Procedure Notes for installers  Warning Only use nitrogen for flushing. Using carbon dioxide risks leaving condensation in the piping. Oxygen, air, refrigerant, flammable gases and toxic gases must not be used for flushing. Use of such gases may result in fire or explosion.
  • Page 163 Amazon Unitario Top Discharge 5.8 Gastightness Test 5.8.1 Purpose To prevent faults caused by refrigerant leakage, a gastightness test should be performed before system commissioning.. 5.8.2 Procedure Notes for installers  Warning Only dry nitrogen should be used for gastightness testing. Oxygen, air, flammable gases and toxic gases must not be used for gastightness testing.
  • Page 164 Amazon Unitario Top Discharge 5.8.3 Leak detection Notes for installers  The general methods for identifying the source of a leak are as follows: 1. Audio detection: relatively large leaks are audible. 2. Touch detection: place your hand at joints to feel for escaping gas.
  • Page 165 Amazon Unitario Top Discharge 5.9.2 Procedure  Notes for installers During vacuum drying, a vacuum pump is used to lower the pressure in the piping to the extent that any moisture present evaporates. At 5mmHg (755mmHg below typical atmospheric pressure) the boiling point of water is 0°C.

  • Page 166: Drain Piping

    Amazon Unitario Top Discharge 6 Drain Piping 6.1 Design Considerations Drain piping design should take account of the following considerations: Indoor unit condensate drain piping needs to be of sufficient diameter to carry the volume of condensate produced at ƒ...
  • Page 167 Amazon Unitario Top Discharge Figure 3-6.5: Drain piping air vents Vent Air conditioner drain piping should be installed separately from waste, rainwater and other drain piping and should ƒ not come into direct contact with the ground. Drain piping diameter should be not less than the indoor units’ drain piping connection.
  • Page 168 Amazon Unitario Top Discharge Table 3-6.2: Vertical drain piping diameters Nominal diameter PVC piping Capacity (L/h) Remarks (mm) PVC25 Branch piping only PVC32 PVC40 PVC50 1440 PVC63 2760 Branch or main piping PVC75 5710 PVC90 8280 6.4 Drain Piping for Units with Lift Pumps...

  • Page 169: Insulation

    Amazon Unitario Top Discharge 6.6 Watertightness Test and Water Flow Test Once installation of a drainage piping system is compete, watertightness and water flow tests should be performed. Notes for installers  Watertightness test Fill the piping with water and test for leakages over a 24-hour period.
  • Page 170 Amazon Unitario Top Discharge 7.1.4 Installation of piping insulation With the exception of joint insulation, insulation should be applied to piping before fixing the piping in place. Insulation at joints in refrigerant piping should be applied after the gastightness test has been completed.

  • Page 171: Charging Refrigerant

    Amazon Unitario Top Discharge 8 Charging Refrigerant 8.1 Calculating Additional Refrigerant Charge The additional refrigerant charge required depends on the lengths and diameters of the outdoor and indoor liquid pipes. Table 3-8.1 shows the additional refrigerant charge required per meter of equivalent pipe length for different diameters of pipe.
  • Page 172 Amazon Unitario Top Discharge … box continued from previous page Step 3 • Open the valve where the yellow hose meets the pressure gauge, and open the refrigerant tank slightly to let the refrigerant eliminate the air. Caution: open the tank slowly to avoid freezing your hand.

  • Page 173: Electrical Wiring

    Amazon Unitario Top Discharge 9 Electrical Wiring 9.1 General Notes for installers  Caution All installation and wiring must be carried out by competent and suitably qualified, certified and accredited ƒ professionals and in accordance with all applicable legislation. Electrical systems should be grounded in accordance with all applicable legislation.
  • Page 174 Amazon Unitario Top Discharge Figure 3-9.1: Outdoor unit power supply wiring Figure 3-9.2: Indoor unit power supply wiring Single-phase 220~ 50/60Hz Leakage protector Manual switch Branch box Indoor unit Notes for installers  The 3-phase, 380-415V, 50Hz power supply should be connected to the outdoor unit power supply terminals as shown in Figure 3-9.3.
  • Page 175 Connect to indoor unit centralized controller P Q E Connect between indoor units and master outdoor unit H1 H2 E Not available for Amazon Unitario Top Discharge Indi- vidual series outdoor unit 9.4 Wiring example Figure 3-9.5: System power and communication wiring example...

  • Page 176: Installation In Areas Of High Salinity

    Amazon Unitario Top Discharge 10 Installation in Areas of High Salinity 10.1 Caution Do not install outdoor units where they could be directly exposed to sea air. Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or inefficient performance.

  • Page 177: Commissioning

    Amazon Unitario Top Discharge 11 Commissioning 11.1 Outdoor Unit Capacity Settings The capacity of each outdoor unit (on switch ENC2 on each outdoor unit’s main PCB) is factory-set and should not need changing. Check that the capacity settings are correct. Refer to Table 3-11.1.
  • Page 178 Once all the pre-commissioning checks in Part 3, 11.3 “Pre-commissioning Checks” have been completed, a test run should be performed as described below and a Amazon Unitario Top Discharge Series System Commissioning Report (see Part 3, 12 “Appendix to Part 3 – System Commissioning Report”) should be completed as a record of the operating status of the system during commissioning.

  • Page 179: Appendix To Part 3 - System Commissioning Report

    Amazon Unitario Top Discharge 12 Appendix to Part 3 – System Commissioning Report A total of up to 5 report sheets should be completed for each system: One Sheet A, one Sheet B and one Sheet C per system. ƒ...
  • Page 180 Amazon Unitario Top Discharge Amazon Unitario Top Discharge Series System Commissioning Report – Sheet A SYSTEM INFORMATION Project name and location Customer company System name Installation company Commissioning date Agent company Outdoor ambient temp. Commissioning engineer Model Serial no. Power supply (V)
  • Page 181 Amazon Unitario Top Discharge Amazon Unitario Top Discharge Series System Commissioning Report – Sheet B SYSTEM INFORMATION Project name and location Customer company System name Installation company Commissioning date Agent company Outdoor ambient temp. Commissioning engineer Model Serial no. Power supply (V)
  • Page 182 Amazon Unitario Top Discharge Amazon Unitario Top Discharge Series System Commissioning Report – Sheet C Project name and location System name RECORD OF ISSUES SEEN DURING COMMISSIONING Serial no. of relevant Description of observed issue Suspected cause Troubleshooting undertaken unit...
  • Page 183 Amazon Unitario Top Discharge Amazon Unitario Top Discharge Series System Commissioning Report – Sheet D Project name and location System name Observed values DSP1 Cooling Heating Parameters displayed on DSP2 Remarks content mode mode Amazon Unitario Top Discharge series 0.--...
  • Page 184 Amazon Unitario Top Discharge Table continued on next page …...

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