Chigo CHV Mini Series Service Manual
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Chigo CHV Mini Series Service Manual

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Summary of Contents for Chigo CHV Mini Series

  • Page 1 R410A Commercial Air Conditioners Service Manual Series...
  • Page 2 CHV Mini VRF 50/60Hz CONTENTS Part 1 General Information ................. 3 Part 2 Outdoor Units ……………………..............12 Part 3 Installation ....................65 Part 4 Troubleshooting ..................81 201908...
  • Page 3 CHV Mini VRF 50/60Hz 201908...

  • Page 4: Table Of Contents

    CHV Mini VRF 50/60Hz Part 1 General Information Indoor and Outdoor Unit Capacities ............4 External Appearance................5 Nomenclature…………………..............7 Combination Ratio................. 7 Features……………................... 8 201908...

  • Page 5: Indoor And Outdoor Unit Capacities

    CHV Mini VRF 50/60Hz 1. Indoor and Outdoor Unit Capacities 1.1 Indoor Units Table 1-1.1: Standard indoor unit abbreviation codes Abbreviation Abbreviation Type Type code code One-way Cassette Wall-mounted Two-way Cassette Floor & Ceiling Compact four-way Cassette Low ESP Short Ducted Four-way Cassette Medium ESP Ducted Round-flow Cassette...

  • Page 6: External Appearance

    CHV Mini VRF 50/60Hz 2. External Appearance 2.1 Indoor Units Table 1-2.1: Standard indoor unit appearance One-way Cassette Two-way Cassette Compact Four-way Cassette Four-way Cassette Round-flow Cassette Floor Standing Wall-mounted Floor & Ceiling Low ESP Short Ducted Medium ESP Ducted High ESP Ducted 201908...
  • Page 7 CHV Mini VRF 50/60Hz 2.2 Outdoor Units Table 1-2.2: Outdoor unit appearance 10kW 12.5/14/16kW Table 1-2.3: Outdoor unit specification Model name Net dimension(mm) Net/Gross weight (kg) Power supply Width: 935 Height: 702 CHV-DH080W/R1 47/50 220~240V/1N/50Hz Depth:383 Width: 1032 Height: 810 CHV-DH100W/R1 60/65 220~240V/1N/50Hz...

  • Page 8: Nomenclature

    Cooling Capacity ( 100W ) × Side Discharge Outdoor Unit All DC Inverter Chigo VRF 4. Combination Ratio Sum of capacity indexes of the indoor units Combination ratio = Capacity index of the outdoor units Table 1-4.1: Indoor and outdoor unit combination ratio limitations...

  • Page 9: Features

    9 zones with one outdoor unit. Such as villa, restaurant, school etc. Chigo offers various indoor units, more than 100 models of 11 types. Capacity ranges are from 2.2kW to 16kW. It is all compliance with residential and light commercial place. Our systems can be operated up to 130% of capacity which allows any system to be designed to the customers’...
  • Page 10 CHV Mini VRF 50/60Hz 5.2 High efficient DC inverter compressor All DC inverter Mini VRF adopts highly intelligent inverter-driven compressor. This advanced technology enables the output of the outdoor unit to be modulated by the real heat load demands. This advanced system ensures precise temperature regulation and highly efficient energy usage, making a significant contribution to the limiting the impact on the environment.
  • Page 11 CHV Mini VRF 50/60Hz 5.6 Wide operation temperature range No matter in extremely cold winter when outdoor temperature gets as low as -15°C or in hot summer when temperature is up to 55°C, the Mini VRF system will keep stable performance. 5.7 Flexible piping design Table 1-5.1: Piping parameters Piping Length...
  • Page 12 CHV Mini VRF 50/60Hz 5.10 Smart electronic control design The radiation fin is made of aluminum panels fitting together seamlessly. This helps to cool down the IPM, it has better performance compared to air cooling for PCB. With PFC(Power Factor Corrector) module, the power utilization rate is increased, the power factor is capable to be 98%, lead to higher efficiency.
  • Page 13 CHV Mini VRF 50/60Hz 201908...
  • Page 14 CHV Mini VRF 50/60Hz Part 2 Outdoor Units Specifications ..................14 Dimensions ..................16 Service Space ..................17 Piping Diagrams .................. 18 Wiring Diagrams ................. 19 Field Wiring ..................21 Capacity Tables ................... 22 Electric Characteristics ................ 62 Sound Levels ..................63 10 Operation Limits .................

  • Page 15: Specifications

    CHV Mini VRF 50/60Hz 1. Specifications CHV-DH080W/R1 CHV-DH100W/R1 Model name CHV-DH080W/NR1 CHV-DH100W/NR1 220~240V/1N/50Hz 220~240V/1N/50Hz Power supply 220~240V/1N/60Hz 220~240V/1N/60Hz Condition Performance data Capacity Btu/h 27300 24570 34100 30690 Cooling 2.27 2.04 2.84 2.56 Power input 2.60 2.81 3.00 3.25 Rated current 11.8 14.2 13.6...
  • Page 16 CHV Mini VRF 50/60Hz CHV-DH125W/R1 CHV-DH140W/R1 CHV-DH160W/R1 Model name CHV-DH125W/NR1 CHV-DH140W/NR1 CHV-DH160W/NR1 220~240V/1N/50Hz 220~240V/1N/50Hz 220~240V/1N/50Hz Power supply 220~240V/1N/60Hz 220~240V/1N/60Hz 220~240V/1N/60Hz Condition Performance data 12.5 11.3 12.7 14.5 Capacity Btu/h 42600 38340 47800 43020 54600 49140 Cooling 3.55 3.20 3.98 3.58 4.55 4.10 Power input...

  • Page 17: Dimensions

    CHV Mini VRF 50/60Hz 2. Dimensions CHV-DH080W/R1 CHV-DH100W/R1 CHV-DH125W/R1 CHV-DH140W/R1 CHV-DH160W/R1 201908...

  • Page 18: Service Space

    CHV Mini VRF 50/60Hz 3. Service Space 3.1 Single unit installation Air inlet >300 Air inlet >600 Air outlet 3.2 Parallel connect the two units or above 201908...

  • Page 19: Piping Diagrams

    CHV Mini VRF 50/60Hz 4. Piping Diagrams Electronic Evaporator expansion valve High pressure Electronic switch expansion valve Condensor Oil seperator Oil return capilary Compressor pressure pressure switch liquid accumulator can Oil separator: It is used to separate oil from high pressure & temperature gas refrigerant that is pumped out from compressor.

  • Page 20: Wiring Diagrams

    CHV Mini VRF 50/60Hz 5. Wiring Diagrams 5.1 For 8/10kW 201908...
  • Page 21 CHV Mini VRF 50/60Hz 5.2 For 12.5/14/16kW Inspection Instructions of Outdoor Unit Insp Instrucitons Insp Code Current freq( running) /Number of indoor ( Reserved) units( standby) INV. YL/GN Outdoor unit capability:80/100/120/140/160/180 External External 0 - Off/Fan 2 - Cooling COMP inductance Operating Mode: inductance...

  • Page 22: Field Wiring

    CHV Mini VRF 50/60Hz 6. Field Wiring If needed, the user can purchase a centralized controller, as shown in the dashed box. For the specific method of installation, please contact your local supplier. Power supply Power supply Switch / power supply Switch / power supply Junctionbox Power line of outdoorunit...

  • Page 23: Capacity Tables

    CHV Mini VRF 50/60Hz 7. Capacity Tables 7.1 Cooling CHV-DH080W/R1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Combination Indoor temperature (°C WB) Outdoor Air DB: 20.8, WB: 14 DB: 23.3, WB: 16 DB: 25.8, WB: 18 DB: 27, WB: 19 DB: 28.2, WB: 20 DB: 30.7, WB: 22 DB: 32, WB: 24 temperature (Capacity (°C DB)
  • Page 24 CHV Mini VRF 50/60Hz Combination Indoor temperature (°C WB) Outdoor Air DB: 20.8, WB: 14 DB: 23.3, WB: 16 DB: 25.8, WB: 18 DB: 27, WB: 19 DB: 28.2, WB: 20 DB: 30.7, WB: 22 DB: 32, WB: 24 temperature (Capacity (°C DB) index)
  • Page 25 CHV Mini VRF 50/60Hz Combination Indoor temperature (°C WB) Outdoor Air DB: 20.8, WB: 14 DB: 23.3, WB: 16 DB: 25.8, WB: 18 DB: 27, WB: 19 DB: 28.2, WB: 20 DB: 30.7, WB: 22 DB: 32, WB: 24 temperature (Capacity (°C DB) index)
  • Page 26 CHV Mini VRF 50/60Hz Combination Indoor temperature (°C WB) Outdoor Air DB: 20.8, WB: 14 DB: 23.3, WB: 16 DB: 25.8, WB: 18 DB: 27, WB: 19 DB: 28.2, WB: 20 DB: 30.7, WB: 22 DB: 32, WB: 24 temperature (Capacity (°C DB) index)
  • Page 27 CHV Mini VRF 50/60Hz Indoor temperature (°C WB) Combination Outdoor Air DB: 20.8, WB: 14 DB: 23.3, WB: 16 DB: 25.8, WB: 18 DB: 27, WB: 19 DB: 28.2, WB: 20 DB: 30.7, WB: 22 DB: 32, WB: 24 temperature (Capacity (°C DB) index)
  • Page 28 CHV Mini VRF 50/60Hz CHV-DH100W/R1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature (°C WB) Combination Outdoor Air DB: 20.8, WB: 14 DB: 23.3, WB: 16 DB: 25.8, WB: 18 DB: 27, WB: 19 DB: 28.2, WB: 20 DB: 30.7, WB: 22 DB: 32, WB: 24 temperature (Capacity (°C DB)
  • Page 29 CHV Mini VRF 50/60Hz Indoor temperature (°C WB) Combination Outdoor Air DB: 20.8, WB: 14 DB: 23.3, WB: 16 DB: 25.8, WB: 18 DB: 27, WB: 19 DB: 28.2, WB: 20 DB: 30.7, WB: 22 DB: 32, WB: 24 temperature (Capacity (°C DB) index)
  • Page 30 CHV Mini VRF 50/60Hz Indoor temperature (°C WB) Combination Outdoor Air DB: 20.8, WB: 14 DB: 23.3, WB: 16 DB: 25.8, WB: 18 DB: 27, WB: 19 DB: 28.2, WB: 20 DB: 30.7, WB: 22 DB: 32, WB: 24 temperature (Capacity (°C DB) index)
  • Page 31 CHV Mini VRF 50/60Hz Indoor temperature (°C WB) Combination Outdoor Air DB: 20.8, WB: 14 DB: 23.3, WB: 16 DB: 25.8, WB: 18 DB: 27, WB: 19 DB: 28.2, WB: 20 DB: 30.7, WB: 22 DB: 32, WB: 24 temperature (Capacity (°C DB) index)
  • Page 32 CHV Mini VRF 50/60Hz Combination Indoor temperature (°C WB) Outdoor Air DB: 20.8, WB: 14 DB: 23.3, WB: 16 DB: 25.8, WB: 18 DB: 27, WB: 19 DB: 28.2, WB: 20 DB: 30.7, WB: 22 DB: 32, WB: 24 temperature (Capacity (°C DB) index)
  • Page 33 CHV Mini VRF 50/60Hz CHV-DH125W/R1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature (°C WB) Combination Outdoor Air DB: 20.8, WB: 14 DB: 23.3, WB: 16 DB: 25.8, WB: 18 DB: 27, WB: 19 DB: 28.2, WB: 20 DB: 30.7, WB: 22 DB: 32, WB: 24 temperature (Capacity (°C DB)
  • Page 34 CHV Mini VRF 50/60Hz Indoor temperature (°C WB) Combination Outdoor Air DB: 20.8, WB: 14 DB: 23.3, WB: 16 DB: 25.8, WB: 18 DB: 27, WB: 19 DB: 28.2, WB: 20 DB: 30.7, WB: 22 DB: 32, WB: 24 temperature (Capacity (°C DB) index)
  • Page 35 CHV Mini VRF 50/60Hz Combination Indoor temperature (°C WB) Outdoor Air DB: 20.8, WB: 14 DB: 23.3, WB: 16 DB: 25.8, WB: 18 DB: 27, WB: 19 DB: 28.2, WB: 20 DB: 30.7, WB: 22 DB: 32, WB: 24 temperature (Capacity (°C DB) index)
  • Page 36 Indoor temperature (°C WB) Combination Outdoor Air DB: 20.8, WB: 14 DB: 23.3, WB: 16 DB: 25.8, WB: 18 DB: 27, WB: 19 DB: 28.2, WB: 20 DB: 30.7, WB: 22 DB: 32, WB: 24 temperature (Capacity (°C DB) index) 0.91 0.96 0.99...
  • Page 37 CHV Mini VRF 50/60Hz Combination Indoor temperature (°C WB) Outdoor Air DB: 20.8, WB: 14 DB: 23.3, WB: 16 DB: 25.8, WB: 18 DB: 27, WB: 19 DB: 28.2, WB: 20 DB: 30.7, WB: 22 DB: 32, WB: 24 temperature (Capacity (°C DB) index)
  • Page 38 CHV Mini VRF 50/60Hz CHV-DH140W/R1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Indoor temperature (°C WB) Combination Outdoor Air DB: 20.8, WB: 14 DB: 23.3, WB: 16 DB: 25.8, WB: 18 DB: 27, WB: 19 DB: 28.2, WB: 20 DB: 30.7, WB: 22 DB: 32, WB: 24 temperature (Capacity (°C DB)
  • Page 39 CHV Mini VRF 50/60Hz Combination Indoor temperature (°C WB) Outdoor Air DB: 20.8, WB: 14 DB: 23.3, WB: 16 DB: 25.8, WB: 18 DB: 27, WB: 19 DB: 28.2, WB: 20 DB: 30.7, WB: 22 DB: 32, WB: 24 temperature (Capacity (°C DB) index)
  • Page 40 CHV Mini VRF 50/60Hz Indoor temperature (°C WB) Combination Outdoor Air DB: 20.8, WB: 14 DB: 23.3, WB: 16 DB: 25.8, WB: 18 DB: 27, WB: 19 DB: 28.2, WB: 20 DB: 30.7, WB: 22 DB: 32, WB: 24 temperature (Capacity (°C DB) index)
  • Page 41 Indoor temperature (°C WB) Combination Outdoor Air DB: 20.8, WB: 14 DB: 23.3, WB: 16 DB: 25.8, WB: 18 DB: 27, WB: 19 DB: 28.2, WB: 20 DB: 30.7, WB: 22 DB: 32, WB: 24 temperature (Capacity (°C DB) index) 1.06 1.12 1.16...
  • Page 42 CHV Mini VRF 50/60Hz Indoor temperature (°C WB) Combination Outdoor Air DB: 20.8, WB: 14 DB: 23.3, WB: 16 DB: 25.8, WB: 18 DB: 27, WB: 19 DB: 28.2, WB: 20 DB: 30.7, WB: 22 DB: 32, WB: 24 temperature (Capacity (°C DB) index)
  • Page 43 CHV Mini VRF 50/60Hz CHV-DH160W/R1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Combination Indoor temperature (°C WB) Outdoor Air DB: 20.8, WB: 14 DB: 23.3, WB: 16 DB: 25.8, WB: 18 DB: 27, WB: 19 DB: 28.2, WB: 20 DB: 30.7, WB: 22 DB: 32, WB: 24 temperature (Capacity (°C DB)
  • Page 44 CHV Mini VRF 50/60Hz Combination Indoor temperature (°C WB) Outdoor Air DB: 20.8, WB: 14 DB: 23.3, WB: 16 DB: 25.8, WB: 18 DB: 27, WB: 19 DB: 28.2, WB: 20 DB: 30.7, WB: 22 DB: 32, WB: 24 temperature (Capacity (°C DB) index)
  • Page 45 CHV Mini VRF 50/60Hz Combination Indoor temperature (°C WB) Outdoor Air DB: 20.8, WB: 14 DB: 23.3, WB: 16 DB: 25.8, WB: 18 DB: 27, WB: 19 DB: 28.2, WB: 20 DB: 30.7, WB: 22 DB: 32, WB: 24 temperature (Capacity (°C DB) index)
  • Page 46 CHV Mini VRF 50/60Hz Combination Indoor temperature (°C WB) Outdoor Air DB: 20.8, WB: 14 DB: 23.3, WB: 16 DB: 25.8, WB: 18 DB: 27, WB: 19 DB: 28.2, WB: 20 DB: 30.7, WB: 22 DB: 32, WB: 24 temperature (Capacity (°C DB) index)
  • Page 47 CHV Mini VRF 50/60Hz Combination Indoor temperature (°C WB) Outdoor Air DB: 20.8, WB: 14 DB: 23.3, WB: 16 DB: 25.8, WB: 18 DB: 27, WB: 19 DB: 28.2, WB: 20 DB: 30.7, WB: 22 DB: 32, WB: 24 temperature (Capacity (°C DB) index)
  • Page 48 CHV Mini VRF 50/60Hz 7.2 Heating CHV-DH080W/R1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Outdoor Air Indoor temperature(°C WB) Combination (%) temperature (Capacity index) (°C DB) °C DB °C WB -19.8 -18.8 -16.7 -13.7 -11.8 -9.8 -9.5...
  • Page 49 CHV Mini VRF 50/60Hz Outdoor Air Indoor temperature(°C WB) Combination (%) temperature (Capacity index) (°C DB) °C DB °C WB -19.8 -18.8 -16.7 -13.7 -11.8 -9.8 -9.5 -8.5 -9.1 -7.6 100% -5.6 -3.7 -0.7 10.4 10.5 10.5 10.5 11.8 10.5 13.7 10.5 -19.8...
  • Page 50 CHV Mini VRF 50/60Hz Outdoor Air Indoor temperature(°C WB) Combination (%) temperature (Capacity index) (°C DB) °C DB °C WB -19.8 -18.8 -16.7 -13.7 -11.8 -9.8 -9.5 -8.5 -9.1 -7.6 -5.6 -3.7 -0.7 11.8 13.7 -19.8 -18.8 -16.7 -13.7 -11.8 -9.8 -9.5 -8.5...
  • Page 51 CHV Mini VRF 50/60Hz CHV-DH100W/R1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Outdoor Air Indoor temperature(°C WB) Combination temperature (%) (Capacity (°C DB) index) °C DB °C WB -19.8 -18.8 -16.7 -13.7 -11.8 -9.8 -9.5 -8.5 -9.1...
  • Page 52 CHV Mini VRF 50/60Hz Outdoor Air Indoor temperature(°C WB) Combination (%) temperature (Capacity index) (°C DB) °C DB °C WB -19.8 -18.8 -16.7 -13.7 -11.8 -9.8 -9.5 -8.5 -9.1 -7.6 100% -5.6 10.0 10.0 10.0 10.0 10.0 -3.7 10.5 10.5 10.5 10.5 10.5...
  • Page 53 CHV Mini VRF 50/60Hz Outdoor Air Indoor temperature(°C WB) Combination temperature (%) (Capacity (°C DB) index) °C DB °C WB -19.8 -18.8 -16.7 -13.7 -11.8 -9.8 -9.5 -8.5 -9.1 -7.6 -5.6 -3.7 -0.7 11.8 13.7 -19.8 -18.8 -16.7 -13.7 -11.8 -9.8 -9.5 -8.5...
  • Page 54 CHV Mini VRF 50/60Hz CHV-DH125W/R1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Outdoor Air Indoor temperature(°C WB) Combination (%) temperature (Capacity index) (°C DB) °C DB °C WB -19.8 -18.8 -16.7 -13.7 10.0 -11.8 10.4 10.4 10.3...
  • Page 55 CHV Mini VRF 50/60Hz Outdoor Air Indoor temperature(°C WB) Combination (%) temperature (Capacity index) (°C DB) °C DB °C WB -19.8 -18.8 -16.7 -13.7 -11.8 10.2 10.2 10.2 10.2 10.2 10.1 -9.8 10.7 10.7 10.7 10.7 10.6 10.6 -9.5 11.0 10.9 10.9 10.9...
  • Page 56 CHV Mini VRF 50/60Hz Outdoor Air Indoor temperature(°C WB) Combination temperature (%) (Capacity (°C DB) index) °C DB °C WB -19.8 -18.8 -16.7 -13.7 -11.8 10.1 10.1 -9.8 10.6 10.4 -9.5 10.8 10.4 -8.5 -9.1 11.0 10.4 -7.6 11.0 10.4 -5.6 11.0 10.4...
  • Page 57 CHV Mini VRF 50/60Hz CHV-DH140W/R1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Outdoor Air Indoor temperature(°C WB) Combination (%) temperature (Capacity index) (°C DB) °C DB °C WB -19.8 10.4 10.3 10.3 10.3 10.2 10.2 -18.8 10.5...
  • Page 58 CHV Mini VRF 50/60Hz Outdoor Air Indoor temperature(°C WB) Combination (%) temperature (Capacity index) (°C DB) °C DB °C WB -19.8 10.2 10.2 10.2 10.1 10.1 10.1 -18.8 10.4 10.4 10.3 10.3 10.3 10.3 -16.7 10.8 10.7 10.7 10.7 10.7 10.7 -13.7 11.2...
  • Page 59 CHV Mini VRF 50/60Hz Outdoor Air Indoor temperature(°C WB) Combination (%) temperature (Capacity index) (°C DB) °C DB °C WB -19.8 10.0 10.0 10.0 10.0 10.0 -18.8 10.2 10.2 10.1 10.1 10.1 -16.7 10.6 10.6 10.5 10.5 10.4 -13.7 11.0 11.0 11.0 10.8...
  • Page 60 CHV Mini VRF 50/60Hz CHV-DH160W/R1 TC: Total Capacity (kW); PI: Power Input (kW) (Compressor + Outdoor fan motor) Outdoor Air Indoor temperature(°C WB) Combination (%) temperature (Capacity index) (°C DB) °C DB °C WB -19.8 12.0 11.9 11.9 11.9 11.8 11.8 -18.8 12.2...
  • Page 61 CHV Mini VRF 50/60Hz Outdoor Air Indoor temperature(°C WB) Combination (%) temperature (Capacity index) (°C DB) °C DB °C WB -19.8 11.8 11.7 11.7 11.7 11.7 11.6 -18.8 12.0 12.0 11.9 11.9 11.9 11.9 -16.7 12.4 12.4 12.4 12.3 12.3 12.3 -13.7 13.0...
  • Page 62 CHV Mini VRF 50/60Hz Outdoor Air Indoor temperature(°C WB) Combination (%) temperature (Capacity index) (°C DB) °C DB °C WB -19.8 11.6 11.5 11.5 11.5 11.5 11.3 -18.8 11.8 11.8 11.7 11.7 11.7 11.3 -16.7 12.2 12.2 12.2 12.2 12.1 11.3 -13.7 12.8...

  • Page 63: Electric Characteristics

    CHV Mini VRF 50/60Hz 8. Electric Characteristics Power Line Signal Wire between Indoor and Capacity (kW) Power Supply Breaker/Fuse (A) (mm2) Outdoor Units (mm) 8/10 220-240V 50Hz/60Hz 3×4.0 40/30 three-core shielded cable 3×1.0 12.5/14/16 220-240V 50Hz/60Hz 3×6.0 63/45 201908...

  • Page 64: Sound Levels

    CHV Mini VRF 50/60Hz 9. Sound Levels Model Sound level dB(A) Height (m) CHV-DH080W/R1 CHV-DH100W/R1 CHV-DH125W/R1 CHV-DH140W/R1 CHV-DH160W/R1 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 NC-20 NC-20 Audibility Audibility limits of limits of continuous continuous white sound white sound 500 1000 2000 4000 8000...

  • Page 65: Operation Limits

    CHV Mini VRF 50/60Hz 10. Operation Limits Cooling Heating 25 32 Indoor temperature (°C DB) Indoor temperature (°C DB) Operation mode Outdoor temperature Indoor temperature Cooling -5℃ - 55℃ 16℃ - 32℃ Heating -15℃ - 30℃ 16℃ -32℃ 201908...
  • Page 66 CHV Mini VRF 50/60Hz Part 3 Installation Precautions ..................66 Outdoor Unit Installation ..............67 Piping Installation ................68 Electric Wiring Installations ..............76 Test Running ..................78 Precautions on Refrigerant Leakage ............ 79 201908...

  • Page 67: Precautions

    CHV Mini VRF 50/60Hz 1. Precautions 1.1 This air conditioner is a comfortable unit. Don't use it in some special places for machine rooms, precise instruments, foods, plants, animals, artworks, etc. (1) The installation shall be done by the distributor or the professional staff. The installation staff must have related professional knowledge.

  • Page 68: Outdoor Unit Installation

    CHV Mini VRF 50/60Hz 2. Outdoor Unit Installation 2.1 Installation space selection (1) Install the outdoor unit at a place where discharge air is not blocked. When an outdoor unit is installed in a place that is always exposed. There also should be enough space for installation and maintenance. (2) To a strong wind like a coast or on the high store of a building, secure a normal fan operation by using a duct or a wind shield.

  • Page 69: Piping Installation

    CHV Mini VRF 50/60Hz 3. Piping Installation 3.1 Piping connection (1) Flaring Use a pipe cutter to cut the refrigerant pipe and a pipe expander to flare A(mm) Outer Diameter Burr Rough Maximum Minimum (mm) Inclined Φ6.35 Φ9.52 12.4 12.0 Φ12.7 15.8 15.4...
  • Page 70 CHV Mini VRF 50/60Hz (1) Connecting mode I First distributor (2) Connecting mode II (28) (28) (28) First distributor (28) (22) (28) 3.3 Determination of main pipe (L1) diameter Pipe Dimension of Main Pipe (mm) ≥30m ＜30m Capacity of Outdoor Unit (kW) First distributor Liquid pipe Gas pipe...
  • Page 71 CHV Mini VRF 50/60Hz CHV Mini VRF 50/60Hz 3.4 Determination of main pipe (L2-L5) diameter Length of Downstream Equivalent Pipe Capacity of Downstream Indoor Unit Dimension of main pipe of indoor unit (kW) Applicable to distributor Liquid pipe Gas pipe W＜6.5 Φ9.52 Φ12.7...
  • Page 72 CHV Mini VRF 50/60Hz (2) Connecting mode II Equivalent length to the nearest distributor Equivalent length to the farthest pipe of the indoor unit Equivalent length to the farthest pipe of the first distributor First distributor +a+b+c+d+e+f Total Pipe Length ≤100m Actual length ≤60m...
  • Page 73 CHV Mini VRF 50/60Hz 3.6 Installation of distributor (1) The distributor shall use U-type or Y-type, instead of T-type. (2) The distributor shall be installed horizontally, with the deviation angle of no greater than ± 10℃. (3) The distributor cannot be turned directly, with the straight pipe of no less than 0.8m. Direction A Direction B ＞0.8m...
  • Page 74 CHV Mini VRF 50/60Hz High pressure liquid pipe Low pressure gas pipe Outdoor unit (set) Oil return bend Indoor unit set 3.8 Remove Dirt or Water in the Piping Make sure there is no any dirt or water before connecting the piping to the outdoor units. Wash the piping with high pressure nitrogen, never use refrigerant of outdoor unit.
  • Page 75 CHV Mini VRF 50/60Hz Connect the vacuum pump Run the vacuum pump (above 2 hours) 1. Close the valve of the pressure After dropping up to -0.1MPa, the vacuum pump keeps on gauge; running for 20-60minutes. 2. Disconnect the pressure gauge and the vacuum pump;...
  • Page 76 CHV Mini VRF 50/60Hz 3.14 Stop valve instructions (1) It is closed when leaving the factory, open the valve counterclockwise or close the valve clockwise with a 6mm socket head wrench. (2) After completing the operation, tighten the valve cover. (3) R410A special tool shall be used to vacuumize the valve and fill the refrigerant at the service entrance.

  • Page 77: Electric Wiring Installations

    CHV Mini VRF 50/60Hz 4. Electric Wiring Installations 4.1 Outdoor unit wiring Power Line Signal Wire between Indoor and Outdoor Capacity (kW) Power Supply Breaker/Fuse (A) (mm2) Units (mm) 8/10 220-240V 50Hz/60Hz 3×4.0 40/30 three-core shielded cable 3×1.0 12.5/14/16 220-240V 50Hz/60Hz 3×6.0 63/45 Power supply...
  • Page 78 CHV Mini VRF 50/60Hz 4.2 Indoor unit power supply wiring Indoor power supply Current leakage protection Manual switch Junction box Indoor unit When the power wire is parallel to the signal wire, please put the electrical wires into their own wire pipes, with proper wire spacing (10A or below: 300mm, 50A or below: 500mm).

  • Page 79: Test Running

    CHV Mini VRF 50/60Hz 5. Test Running 5.1 Inspection and confirmation before debugging (1) Check and make sure the refrigerating pipeline and communication line connecting with the indoor and outdoor units are connected with the same refrigerating system. Otherwise, some running faults occur. (2) The power supply voltage is within the rated voltage of ±10%.

  • Page 80: Precautions On Refrigerant Leakage

    CHV Mini VRF 50/60Hz 6. Precautions on Refrigerant Leakage 6.1 Inspection and confirmation before debugging (1) The refrigerant of the air conditioner is harmless and nonflammable. (2) The room for the air conditioner shall have an appropriate space. In case of refrigerant leak, it cannot go beyond the critical concentration.
  • Page 81 CHV Mini VRF 50/60Hz (5) Measures against exceeding the critical concentration. a). To reduce the refrigerant concentration below the critical concentration, install a mechanical ventilation device (for frequent ventilation). b). If frequent ventilation cannot be performed, please install a leak warning device interlinked with the mechanical ventilation device.
  • Page 82 CHV Mini VRF 50/60Hz Part 4 Troubleshooting Exploded Views ................... 82 PCB Ports Instructions ................. 84 Dialing Setting ..................86 Error Code Table .................. 88 Troubleshooting................... 89 201908...

  • Page 83: Exploded Views

    CHV Mini VRF 50/60Hz 1. Exploded Views 201908...
  • Page 84 CHV Mini VRF 50/60Hz Part name Quantity Part name Quantity Top cover cotton component Seat plate sealing cover Condenser part Seat plate Condenser assembly Right side panel Condenser gas collection component Four-way valve component Condenser splitter assembly High pressure valve component Condenser supercooled outlet Solenoid valve component Top beam...

  • Page 85: Pcb Ports Instructions

    CHV Mini VRF 50/60Hz 2. PCB Ports Instructions PCB ports instruction: Content Remark AC220V 220V AC output interface 4-WAY 4-way valve interface Injection cooling valve interface Low temp. heating bypass valve interface HEAT Electric heating interface Relay Electronic expansion valve interface CN26 Terminal for inspection signal wire Low pressure switch signal...
  • Page 86 CHV Mini VRF 50/60Hz Content Remark TEM-M Radiator temperature sensor L1-OUT PFC inductor_1 output L2-OUT PFC inductor_2 output L1-IN PFC inductor_1 input L2-IN PFC inductor_2 input Outdoor unit capacity PCB ports instruction: Content Remark Outdoor digital tube Display running parameter or error code Inspection-up button Inspection-down button Terminal for inspection signal wire...

  • Page 87: Dialing Setting

    CHV Mini VRF 50/60Hz 3. Dialing Setting 3.1 Silent mode choosing by SW5 dialing definition Dialing Silent Mode Standard Mode (Factory default) Strong Silent Mode Night Silent Mode High Static Pressure Mode 3.2 Night time choosing by SW5 dialing definition Dialing Night Time 6/10...
  • Page 88 CHV Mini VRF 50/60Hz 3.4 Define outdoor unit capacity by SW4 dialing The number you dial means the capacity of outdoor unit selected Dialing Capacity 10kW 12.5kW 14kW 16kW 3.5 Inspection Instructions of Outdoor Unit for CHV* Series R e m a r k s Display contens Remarks Current frequency / number of indoor units...

  • Page 89: Error Code Table

    CHV Mini VRF 50/60Hz 4. Error Code Table Fault Code Fault Contents Remark Outdoor unit phase-sequence fault Communication fault between the indoor unit and the outdoor unit 20-minute break at first or 2-minute break later T4 outdoor air temperature sensor fault T3 Condenser pipe temperature sensor fault (outlet) T5 Exhaust temperature sensor fault AC over-voltage / under-voltage protection...

  • Page 90: Troubleshooting

    CHV Mini VRF 50/60Hz 5. Troubleshooting 5.1 Warning Warning  All electrical work must be carried out by competent and suitably qualified, certified and accredited professionals and in accordance with all applicable legislation (all national, local and other laws, standards, codes, rules, regulations and other legislation that apply in a given situation).
  • Page 91 CHV Mini VRF 50/60Hz 5.2 E1: Outdoor unit phase-sequence fault 5.3 E2: Communication fault between the indoor unit and the outdoor unit 201908...
  • Page 92 CHV Mini VRF 50/60Hz 5.4 E4: T4 outdoor air temperature sensor fault 5.5 E6: T3 Condenser pipe temperature sensor fault (outlet) 201908...
  • Page 93 CHV Mini VRF 50/60Hz 5.6 E8: T5 Exhaust temperature sensor fault Check if the T5 exhaust temperature sensor Connect it well connector is loose Pull out the exhaust temperature sensor If multimeter displays 0Ω or OL plug and measure the resistance Replace the sensor Normal resistance: 50K Replace outdoor main PCB...
  • Page 94 CHV Mini VRF 50/60Hz Check the voltage between A-N Contact the power supply Judge whether the input voltage is lower than 172V department Check if the transformer has a normal output of about 4.5V AC If lower, replace the voltage main PCB Check if the half-wave rectified voltage ((1.414 ÷...
  • Page 95 CHV Mini VRF 50/60Hz 5.9 EA: T3B condenser temperature sensor fault (middle) Check if the T3B sensor connector is loose Connect the sensor well Pull out the T3B sensor plug and measure the resistance The outdoor ambient temperature is between 0°C normal Replace the main PCB and 40°C, and the resistance is between 13KΩ...
  • Page 96 CHV Mini VRF 50/60Hz 5.11 EC: T7 refrigerant cooling pipe inlet temperature sensor fault Check if the T7 sensor connector is loose Connect the sensor well Pull out the T7 sensor plug and measure the resistance The outdoor ambient temperature is between 0°C normal Replace the main PCB and 40°C, and the resistance is between 13KΩ...
  • Page 97 CHV Mini VRF 50/60Hz 5.13 H0: Communication fault of master board and driver chip 5.14 H4: Display P6(IPM module protection) for 3 times within 30 minutes 201908...
  • Page 98 CHV Mini VRF 50/60Hz 5.15 H5: Display P2 (system pressure is too low) protection for 3 times within 30 minutes 5.16 H6: Display P4 (T5 Exhaust temperature is too high ) protection for 3 times within 100 minutes 201908...
  • Page 99 CHV Mini VRF 50/60Hz 5.17 H7: The decrease in number of indoor unit 5.18 H9: Display P9 (AC fan fault ) protection for 2 times within 10 minutes 201908...
  • Page 100 CHV Mini VRF 50/60Hz 5.19 H10: Display P3(inverter over current protection) protection for 3 times within 60 minutes 5.20 H11: Display P13 protection for 2 times within 10 minutes Check if the plug of the transformer inserted into Connect it well the outer lead of the main PCB is loose and it is threaded into the main power cord.
  • Page 101 CHV Mini VRF 50/60Hz 5.21 P1: High pressure protection 5.22 P2: Low pressure protection 201908...
  • Page 102 CHV Mini VRF 50/60Hz 5.23 P3: Inverter over current protection 5.24 P4: Exhaust overheating protection 201908...
  • Page 103 CHV Mini VRF 50/60Hz 5.25 P5: T3 or T3B condenser pipe overheating protection 5.26 P6: IPM protection 201908...
  • Page 104 CHV Mini VRF 50/60Hz Code Malfunction or protection remark Inverter compressor malfunction DC generatrix low voltage protection DC generatrix high voltage protection reserved MCE malfunction/simultaneously/cycle loop After P6 displaying for 60s, these L error codes Zero speed protection will display. reserved Wrong phase protection Speed difference >15Hz protection between the front and the...
  • Page 105 CHV Mini VRF 50/60Hz 5.27 P9: DC fan fault Check if the voltage at each position Replace the main PCB is normal as follows 是 Check if the feedback and PWM signals are If PWM signal is abnormal, normal when turning replace the main PCB If the feedback signal is abnormal, replace the fan motor...
  • Page 106 CHV Mini VRF 50/60Hz 5.28 P10: Anti-typhoon protection (1) Enter this condition: a) The fan has stopped output for several minutes; b) The current speed detected by the fan is >=400rpm. (2) Exit this condition: a) After several minutes of anti-typhoon protection; b) The fan detects the current speed <400rpm.
  • Page 107 CHV Mini VRF 50/60Hz 5.32 L0: DC compressor module fault (1) Over current protection(auto-recover): Lights flash once every 3s. Solution: Usually caused by bad outdoor unit heat exchanging condition, improve the heat exchanging condition. Otherwise, check if the outdoor ambient temperature sensor has a resistance offset. If the resistance value is offset, replace the sensor.
  • Page 108 CHV Mini VRF 50/60Hz 5.35 L4: MCE fault / sync / closed loop (1) Check if the DC bus voltage is normal: 510-580V, if it is less than 510V, go to check the rectifier circuit. (2) Check if the wiring of the rectifier circuit is correct, and confirm that the plug is not loose or the like. (3) If the rectifier circuit troubleshooting machine still does not start, please replace the main control board.
  • Page 109 CHV Mini VRF 50/60Hz 5.40 Pb: T6 refrigerant cooling panel temperature is too high Check the 12th and 13th parameters of the main control board. If the value is ≥85°C, the outdoor unit will stop and report Pb protection. (1) Poor heat dissipation of the outdoor unit: Solution: Improve the heat dissipation conditions of outdoor units (especially at the heat sink fins).

This manual is also suitable for:

Chv-dh080w/r1Chv-dh100w/r1Chv-dh125w/r1Chv-dh140w/r1Chv-dh160w/r1

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