Chigo CCB-18HVR4 Technical Manual
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Chigo CCB-18HVR4 Technical Manual

Universal outdoor series r32 50hz, inverter type
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R3250Hz Universal Outdoor Series Technical Manual
Outdoor Unit
R32 50Hz Universal Outdoor Series
Inverter type
Technical Manual
LCAC/2019.6
GD Chigo Heating & Ventilation Equipment Co., Ltd.
I

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Summary of Contents for Chigo CCB-18HVR4

  • Page 1 R3250Hz Universal Outdoor Series Technical Manual Outdoor Unit R32 50Hz Universal Outdoor Series Inverter type Technical Manual LCAC/2019.6 GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 2: Table Of Contents

    Wiring Diagrams ....................... 61 5.1 CTA-18HVR4, CTA-24HVR4 ...................... 61 5.2CTB-36HVR4, CTB-36HVR4S ....................62 5.3CTB-48HVR4, CTB-48HVR4S, CTB-55HVR4S ................. 63 6. Capacity Tables ....................... 64 Static Pressure ......................68 7.1 CTA-18HVR4 ..........................68 7.2 CTA-24HVR4 ..........................68 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 3 9.2Three-phase unit........................133 Part 4 Installation ....................135 1. Precaution on Installation ..................136 2 Vacuum Dry and Leakage Checking ............... 137 3 Additional Refrigerant Charge ................... 139 4 Water Drainage ......................140 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 4 1.1 Instructions of remote controller ....................147 1.2 The icon meaning of remote controller ..................148 1.3 Button function of remote controller ..................149 1.4 Battery replacement ......................... 153 2 Wired Controller ......................154 GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 5: Part1. General Information

    R32 50Hz Universal Series Technical Manual R32 50Hz Universal Outdoor series Part1. General Information 1.Nomenclature ..................2 2.Model Names of Indoor/Outdoor Units ..........4 3.External Appearance ................5 4.Features ..................... 7 GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 6: Nomenclature

    Product series CA: 4-way cassette CB: Compact 4-way cassette CR: Round-flow cassette TA: Low ESP ducted TB: Medium ESP ducted TH: High ESP ducted UA: Floor ceiling FA: Floor standing C: Chigo HVAC GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 7 OT: Top-discharge OW: Non-universal type Match Code -: Unitary series 2: Multi 1 drives 2 3: Multi 1 drives 3 4: Multi 1 drives 4 5: Multi 1 drives 5 C: Chigo HVAC GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 8: Model Names Of Indoor/Outdoor Units

    Power supply (W×H×D) (mm) weight(kg) COU-18HDR4 925×700×366 42/45 220~240V-1Ph-50Hz COU-24HDR4 958×843×392 52/62 220~240V-1Ph-50Hz COU-36HDR4 1030×788×432 68/74 220~240V-1Ph-50Hz COU-36HZDR4 1030×788×432 75/81 380~415V-3Ph-50Hz COU-48HDR4 1014×1430×450 109/123.6 220~240V-1Ph-50Hz COU-48HZDR4 1014×1430×450 109/123.6 380~415V-3Ph-50Hz COU-55HZDR4 1014×1430×450 112/126.6 380~415V-3Ph-50Hz GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 9: External Appearance

    R32 50Hz Universal Series Technical Manual 3. External Appearance 3.1 Indoor unit Round-way Cassette Compact 4-way cassette Low ESP Duct Middle ESP Duct for 36K Floor & Ceiling Middle ESP Duct for 48/55K GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 10 R32 50Hz Universal Series Technical Manual 3.2 Outdoor unit COU-18HDR4 COU-24HDR4 COU-36HDR4, COU-36HZDR4 COU-48HDR4, COU-48HZDR4, COU-55HZDR4 GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 11: Features

    4.4 Low operation sound level: Well-known stable and quiet running DC fan motor. 4.5 Well-known compressor, GMCC and Mitsubishi. 4.6 Universal design: convenient for market stock and spare parts stock. 4.8 R32 is environment friendly refrigerant. 4.9 CE certification, ROHS certification. GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 12: Part2. Indoor Unit

    6. Capacity Table ................. 28 7. Electric Characteristics ..............32 8. Exploded View ................. 33 9. Accessories ..................41 10. The Specification of Wiring ............42 11. Field Wiring ..................43 12. Trouble shooting ................45 GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 13: Features

    R3250Hz Universal Outdoor Series Technical Manual 1. Features Standard round-way cassette Compact 4-way cassette GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 14: Standard Round-Flow Cassette

    (4) Round air flow, cold air can reach each corner of the room, providing a stable and comfortable environment. (5) 3 fan speed，meet for different requirement. New streamlined fan design. (7) Occupied a small installation space, saving interior space GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 15 Integrated electric control box, The E-box is safely covered by metal plate, for better fire-resistance, save using. (11) Add 4 interfaces in body, can be connected with duct to another room.Fresh air makes air quality more healthy and comfortable. GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 16 Low operation sound level: Well-known stable and quiet running DC fan motor. (14) Standard for wireless controller; option for wired controller. Standard optional (15) DC inverter motor, operate in ultra-low frequency in order to precisely control the indoor temperature. GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 17: Compact 4-Way Cassette

    （3）Streamlined design and 3D spiral fan blade reduces air resistance and operation noise （4）Built-in water pump, pump head up to 700mm （5） Foam water tray coated with special plastic convenient to install, preventing the leakage of condensed water effectively. GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 18: Specificationof Round-Flow Cassette

    Liquid side/Gas side piping Drainage pipe DN25 DN25 Standard controller Standard for remote controller(wired controller for option) Operation temp °C 16～32 16～32 cooling °C -15～50 -15～50 Ambient temp heating °C -15～30 -15～30 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 19 Liquid side/Gas side piping Drainage pipe DN25 DN25 Standard for remote controller(wired controller for Standard controller option) Operation temp °C 16～32 16～32 cooling °C -15～50 -15～50 Ambient temp heating °C -15～30 -15～30 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 20 Liquid side/Gas side piping Drainage pipe DN25 DN25 Standard for remote controller(wired controller Standard controller for option) Operation temp °C 16～32 16～32 cooling °C -15～50 -15～50 Ambient temp heating °C -15～30 -15～30 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 21 30.5/36 Net/Gross weight Panel(Kg) 6.5/9.5 Max pressure Refrigerant type Refrigerant Φ9.52/Φ15.88 Liquid side/Gas side piping Drainage pipe DN25 Standard controller Operation temp °C 16～32 cooling °C -15～50 Ambient temp heating °C -15～30 GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 22: Specification Of Compact 4-Way Cassette

    Body(Kg) 16.5/21.5 Net/Gross weight Panel(Kg) 2.7/4.0 Max pressure Refrigerant type Refrigerant Φ6.35/Φ12.7 Φ6.35/Φ12.7 piping Drainage pipe DN25 DN25 Standard controller Operation temp °C 16～32 cooling °C -15～50 Ambient temp heating °C -15～30 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 23 Indoor temp: 20°CDB; Outdoor temp: 7°CDB, 6°CWB; Equivalent ref. piping: 5m (horizontal) 3. Actual noise level may differ, depending on the room structure, etc., since these noise values are from an anechoic room. GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 24: Dimension

    R3250Hz Universal Outdoor Series Technical Manual 3 Dimension 3.1 CCR-18HVR4, CCR-24HVR4 GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 25: Ccr-36Hvr4, Ccr-36Hvr4S, Ccr-48Hvr4, Ccr-48Hvr4S, Ccr-55Hvr4S

    R3250Hz Universal Outdoor Series Technical Manual 3.2 CCR-36HVR4, CCR-36HVR4S, CCR-48HVR4, CCR-48HVR4S, CCR-55HVR4S GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 26 R3250Hz Universal Outdoor Series Technical Manual 3.3 CCB-18HVR4 GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 27: Service Space

    4.3 The outlet and the inlet are not impeded, and the influence of external air is the least. 4.4 The air flow can reach throughout the room. 4.5 The connecting pipe and drainpipe could be extracted out easily. 4.6 There is no direct radiation from heaters. Round-flow cassette: GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 28 R3250Hz Universal Outdoor Series Technical Manual Compact 4-way cassette Model Height (mm) 3.5kW,5.3kW 5.3kW, 7.0kW 10.5kW, 14kW, 16kW GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 29: Wiring Diagrams

    R3250Hz Universal Outdoor Series Technical Manual 5. Wiring Diagrams CCR-18HVR4, CCR-24HVR4 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 30 R3250Hz Universal Outdoor Series Technical Manual CCR-36HVR4,CCR-36HVR4S GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 31 R3250Hz Universal Outdoor Series Technical Manual CCR-48HVR4, CCR-48HVR4S, CCR-18HVR4S CCB-18HVR4 GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 32: Capacity Table

    Input kW. 3.04 3.07 3.09 3.12 3.15 3.30 3.47 29ºC D Total capacity kW 10.85 10.79 10.79 10.67 10.63 10.51 10.39 21ºC W Input kW. 3.09 3.12 3.14 3.18 3.20 3.36 3.52 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 33 Input kW. 1.53 1.55 1.56 1.57 1.58 1.66 1.74 32ºC D Total capacity kW 5.58 5.55 5.52 5.49 5.47 5.40 5.34 23ºC W Input kW. 1.54 1.55 1.56 1.57 1.58 1.66 1.75 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 34 10.68 10.52 9.48 20ºC Input kW. 3.52 3.47 3.38 3.32 3.26 3.24 3.08 Capacity kW 12.00 11.46 11.42 11.09 10.60 10.44 9.41 22ºC Input kW. 3.59 3.52 3.43 3.39 3.31 3.29 3.13 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 35 5.44 5.36 4.83 22ºC Input kW. 1.59 1.50 1.46 1.44 1.41 1.40 1.33 Capacity kW 5.80 5.84 5.82 5.65 5.40 5.32 4.79 27ºC Input kW. 1.62 1.53 1.49 1.47 1.44 1.43 1.36 GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 36: Electric Characteristics

    254V 0.06 CCR-24HVR4 220-240V 198V 254V 0.06 CCR-36HVR4 220-240V 198V 254V 0.10 CCR-36HVR4S 220-240V 198V 254V 0.10 CCR-48HVR4 220-240V 198V 254V 0.10 CCR-48HVR4S 220-240V 198V 254V 0.10 CCR-55HVR4S 220-240V 198V 254V 0.10 GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 37: Exploded View

    R3250Hz Universal Outdoor Series Technical Manual 8. Exploded View 8.1CCR-18HVR4，CCR-24HVR4 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 38 Evaporator components Front brattice Insulating pipe Lower pipe clamp Lower pipe clamp(φ35) Insulating pipe Evaporator attached cotton Upper pipe clamp Upper pipe clamp(φ35) Evaporator welding assy 8.4.1 Installation tube for probe Valve panel GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 39: Ccr-36Hvr4, Ccr-36Hvr4S

    R3250Hz Universal Outdoor Series Technical Manual 8.2CCR-36HVR4, CCR-36HVR4S 2/2.1/2.2/2.3 2.4/2.5/2.6/2.7 3 /3.1 4.1/4.2/4.3 5 /5.1/5.2/5.3/5.4 7/7.1/7.2/7.3/7.4 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 40 Auxiliary fixing board for evaporator Insulating pipe Front brattice Insulating pipe Hanger Evaporator welding assy Discharge pipe joint 5.4.1 Instalation tube for probe Side maintenance board for water pump 5.4.2 Evaporator Valve panel GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 41: Ccr-48Hvr4, Ccr-48Hvr4S, Ccr-55Hvr4

    R3250Hz Universal Outdoor Series Technical Manual 8.3CCR-48HVR4, CCR-48HVR4S, CCR-55HVR4 2/2.1/2.2/2.3 2.4/2.5/2.6/2.7 3 /3.1 4.1/4.2/4.3 5 /5.1/5.2/5.3/5.4 7/7.1/7.2/7.3/7.4 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 42 Auxiliary fixing board for Insulating pipe evaporator Insulating pipe Front brattice Insulating pipe Hanger Evaporator welding assy Discharge pipe joint Side maintenance board for water Instalation tube for probe 5.4.1 pump Evaporator Valve panel 5.4.2 GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 43: Ccb-18Hvr4

    R3250Hz Universal Outdoor Series Technical Manual 8.4 CCB-18HVR4 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 44 Front cover insulation cotton Evaporator Chassis parts Evaporator tightening 17.1 Chassis welding components End plate fixing plate 17.2 Chassis external insulation cotton Centrifugal leaves Refrigerant tube support plate assembly Main fixing board Drain pipe assembly GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 45: Accessories

    Expansible hook Installation Installation hook Fittings Installation paper board Bolt M5 Out-let pipe sheath Drainpipe Fittings Tightening band Remote controller Remote Mounting controller screw(ST2.9×10-C-H) Alkaline dry batteries (AM4) Operation&installation Others instruction manual GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 46: The Specification Of Wiring

    36kBtu/h 48kBtu/h Model 55kBtu/h (3 phase) (3 phase) Indoor power supply V/Ph/Hz 220~240/1/50 Outdoor power supply V/Ph/Hz 380~415/3/50 Power Supply From outdoor unit Connection Power wiring 4×14AWG wiring Signal 3×1.0 wiring GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 47: Field Wiring

    R3250Hz Universal Outdoor Series Technical Manual 11. Field Wiring Applicable for (220V/50Hz) 5.3kW, 7.0kW and ≥10.5kW unit. GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 48 R3250Hz Universal Outdoor Series Technical Manual GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 49: Trouble Shooting

    LED timer flash slowly Indoor unit temperature sensor error LED run flash Water level alarm LED protection flash (reserve) LED defrost flash Outdoor unit error LED protection flash slowly EEPROM error LED defrost flash slowly GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 50 Zero speed protection sensor error EERPOM error Secondary side current protection Indoor fan motor speed lose Heat T2 temp. protection protection Wired controller communication error Outdoor unit voltage error EF(Reserve) Water level alarm error GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 51: Wired Controller Spot Check

    (maximum 99℃) Indoor demand after T2 Opening of EXV amendment Indoor room temperature (T1) Running frequency of temperature compressor Indoor coil middle temperature (T2) Primary voltage/4 temperature Indoor coil outlet temperature (T2B) temperature GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 52: Duct Type

    7. Static Pressure ................68 8.Electric Characteristics ..............70 9. Accessories ..................71 10.The Specification of Wiring ............. 72 11.Field Wiring ..................73 12. Exploded View ................74 13. Trouble shooting ................79 GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 53: Features

    R3250Hz Universal Outdoor Series Technical Manual 1. Features Low Static Pressure Duct Medium Static Pressure Duct(36K) Medium Static Pressure Duct (48/55K) GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 54: Low Esp Ducted Unit

    4. High efficiency DC fan motor, low noise and more comfortable.Operate in low frequency and control indoor temperature precisely. 5. E-box is body-side design, convenient installation and maintenance. 6. Standard for wireless remote controller, wired controller for option. Standard optional GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 55: Medium Esp Ducted Unit

    5. E-box is body-side design, convenient installation and maintenance. 6. High efficiency DC fan motor, low noise and more comfortable. 7. Two air return type option:air inlet from back is standard and from bottom is optional GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 56 R3250Hz Universal Outdoor Series Technical Manual 8. Multi protection and auto-restart function. 9. Remote controller is standard, wired controller is optional ; GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 57: Specification

    Liquid side/Gas side piping Drainage pipe DN25 DN25 Standard controller Standard for remote controller(wired controller for option) °C Operation temp of indoor 16～32 16～32 °C heating -15～30 -15～30 Ambient temp °C -15～50 -15～50 cooling GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 58 Φ9.52/Φ15.88 piping Gas side Drainage pipe DN25 DN25 Standard controller Standard for remote controller(wired controller for option) °C Operation temp 16～32 16～32 °C -15～30 -15～30 heating Ambient temp °C -5～50 -5～50 cooling GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 59 Drainage pipe DN25 DN25 DN25 Standard controller Standard for remote controller(wired controller for option) Operation temp °C 16～32 16～32 16～32 cooling °C -15～50 -15～50 -15～50 Ambient temp heating °C -15～30 -15～30 -15～30 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 60 *: We suggest that for 18K&24K units, external static pressure is lower than 80Pa, for 36K units, external static pressure is lower than 80Pa and for 48K&55K units, external static pressure is lower than 120Pa. If higher static pressure is needed, please contact with supplier. GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 61: Dimensions

    R3250Hz Universal Outdoor Series Technical Manual 3. Dimensions CTA-18HVR4,CTA-24HVR4 Dimension Device body Installation Air outlet Return air dimension dimension dimension dimension Capacity 5.3kW 1214 467 1128 1011 7.1kW 1214 467 1128 1011 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 62 R3250Hz Universal Outdoor Series Technical Manual CTB-36HVR4, CTB-36HVR4S, GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 63 R3250Hz Universal Outdoor Series Technical Manual CTB-48HVR4, CTB-48HVR4S, CTB-55HVR4 GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 64: Service Space

    R3250Hz Universal Outdoor Series Technical Manual 4. Service Space Ensure enough space required for installation and maintenance. GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 65: Wiring Diagrams

    R3250Hz Universal Outdoor Series Technical Manual 5. Wiring Diagrams 5.1 CTA-18HVR4, CTA-24HVR4 NOTE:Arou nd the ring 5 ring GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 66: Ctb-36Hvr4, Ctb-36Hvr4S

    R3250Hz Universal Outdoor Series Technical Manual 5.2CTB-36HVR4, CTB-36HVR4S NOTE:Around the ring 3 ring NOTE:Around the ring 3 ring GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 67: Ctb-48Hvr4, Ctb-48Hvr4S, Ctb-55Hvr4S

    R3250Hz Universal Outdoor Series Technical Manual 5.3CTB-48HVR4, CTB-48HVR4S, CTB-55HVR4S GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 68: Capacity Tables

    Input kW. 3.21 3.24 3.28 3.32 3.44 3.56 3.66 32ºC DB Total capacity kW 11.06 10.99 10.91 10.83 10.74 10.66 10.59 23ºC WB Input kW. 3.22 3.25 3.29 3.33 3.45 3.57 3.68 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 69 5.44 5.36 4.83 22ºC Input kW. 1.68 1.54 1.50 1.48 1.44 1.43 1.37 Capacity kW 5.80 5.84 5.82 5.65 5.40 5.32 4.79 27ºC Input kW. 1.71 1.57 1.53 1.51 1.48 1.46 1.39 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 70 12.44 Capacity kW 22ºC 5.75 5.28 5.13 5.06 4.96 4.91 4.70 Input kW. 14.94 15.05 14.99 14.56 13.91 13.71 12.34 Capacity kW 27ºC 5.86 5.38 5.24 5.16 5.06 5.03 4.77 Input kW. GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 71 13.76 Capacity kW 22ºC 6.35 5.84 5.68 5.60 5.48 5.44 5.20 Input kW. 16.51 16.63 16.57 16.08 15.38 15.15 13.64 Capacity kW 27ºC 6.48 5.96 5.80 5.72 5.60 5.56 5.28 Input kW. GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 72: Static Pressure

    R3250Hz Universal Outdoor Series Technical Manual 7. Static Pressure 7.1 CTA-18HVR4 7.2 CTA 24HVR4 GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 73: Ctb-36Hvr4, Ctb-36Hvr4S

    R3250Hz Universal Outdoor Series Technical Manual 7.3 CTB-36HVR4, CTB-36HVR4S 7.4 CTB 48HVR4, CTB-48HVR4S, CTB-55HVR4S GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 74: Electric Characteristics

    0.068 CTA-18HVR4 220-240V 198V 254V 0.068 CTA-24HVR4 220-240V 198V 254V 0.225 CTB-36HVR4 220-240V 198V 254V 0.225 CTB-36HVR4S 220-240V 198V 254V 0.240 CTB-48HVR4 220-240V 198V 254V 0.240 CTB-48HVR4S 220-240V 198V 254V 0.240 CTB-55HVR4 GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 75: Accessories

    R3250Hz Universal Outdoor Series Technical Manual 9. Accessories Name Shape Quantity Soundproof/insulation sheath Tubing & Fittings Binding tape Seal sponge Drainpipe Fittings Seal ring Controllers Remote controller Operation & installation others instruction manual GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 76: The Specification Of Wiring

    V/Ph/Hz 380~415/3/50 380~415/3/50 380~415/3/50 supply Power Supply Method From outdoor unit Outdoor unit Power Supply Wire 5×12AWG 5×12AWG 5×12AWG Indoor unit Power Supply Wire 4×14AWG 4×14AWG 4×14AWG Signal wiring 4×2.5 4×2.5 3×1.0 GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 77: Field Wiring

    R3250Hz Universal Series Technical Manual 11. Field Wiring Applies to (220V/50Hz)3.5kW,5.3kW,7.1kW GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 78: Exploded View

    R3250Hz Universal Series Technical Manual 12. Exploded View 12.1CTA-18HVR4, CTA-24HVR4 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 79 Down panel cotton 15.1 Base for electric control Right clapboard cotton assy 15.2 Plastic base for PCB Bubble water pan 15.3 Electronic control board for indoor unit Evaporator 15.4 Terminal Evaporator assy GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 80: Ctb-36Hvr4, Ctb-36Hvr4S

    Rubber cover for water outlet joint E- parts box base Lower panel Big cover Air return baffle Right side board Air filter Right connecting panel for evaporator Air return assy Upper panel Left scroll case GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 81: Ctb-48Hvr4, Ctb-48Hvr4S, Ctb-55Hvr4S

    R3250Hz Universal Series Technical Manual 12.3 CTB-48HVR4, CTB-48HVR4S, CTB-55HVR4S GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 82 Right side board foam assy Magnet ring 10.10 Right side board welding assy Reactance Hanger Evaporator support panel 1 assy Cover foam assy Water pan components Cover assy Chassis components Evaporator support panel 2 GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 83: Trouble Shooting

    Compressor driver error or 3 times of P4 error within 100 IPM protection minutes (reserve) (reserve) (reserve) (reserve) Outdoor unit DC fan motor 2 times of P9 error within 10 error minutes GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 84: Spot Check

    (maximum 99℃) Indoor demand after T2 Opening of EXV amendment Indoor room temperature (T1) Running frequency of temperature compressor Indoor coil middle temperature (T2) Primary voltage/4 temperature Indoor coil outlet temperature (T2B) temperature GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 85: Floor & Ceiling

    5.Wiring Diagrams ................90 6.Capacity Table .................. 94 7.Electric Characteristics ..............98 8. Exploded View ................. 99 9.Accessories ..................101 10.The Specification of Power ............102 11.Field Wiring ................... 103 12.Troubleshooting ................104 GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 86: Features

    1. Flexible installation, ceiling suspended and floor standing. 2. Adopting centrifugal fans, higher ESP and longer air flow distance. 3. Two way auto-swing function, built-in two louver step motors, vertical and horizontal air-flow adjustment. 4. Washable air filter GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 87 8. Water pump optional, pumping head is up to 1200mm. 9. Adopting waterproof plastic film on water collector,avoiding water leakage. 10. Self-diagnostic function and multi protection; Auto-restart function. 11. Standard for wireless controller; option for wired controller Standard Optional GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 88: Specifications

    Liquid side/Gas side piping Drainage pipe DN25 DN25 Standard controller Standard for remote controller(wired controller for optional) Operation temp °C 16～32 16～32 cooling °C -15～50 -15～50 Ambient temp heating °C -15～30 -15～30 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 89 Liquid side/Gas side piping Drainage pipe DN25 DN25 Standard controller Standard for remote controller(wired controller for option) Operation temp °C 16～32 16～32 cooling °C -15～50 -15～50 Ambient temp heating °C -15～30 -15～30 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 90 DN25 Drainage pipe DN25 DN25 Standard for remote controller(wired controller for optional) Standard controller Operation temp °C 16～32 16～32 16～32 -15～50 cooling °C -15～50 -15～50 Ambient temp -15～30 heating °C -15～30 -15～30 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 91 Indoor temp: 20°CDB; Outdoor temp: 7°CDB, 6°CWB; Equivalent ref. Piping: 5m (horizontal) 3.Actual noise level may differ, depending on the room structure, etc, since these noise values are from an anechoic room. GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 92: Dimensions

    R3250Hz Universal Series Technical Manual 3 Dimensions CUA-18HVR4,CUA-24HVR4, CUA-36HVR4, CUA-36HVR4S 1245 1119 CUA-48HVR4, CUA-48HVR4S, CUA-55HVR4S GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 93: Service Space

    R3250Hz Universal Series Technical Manual 4 Service Space GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 94: Wiring Diagrams

    R3250Hz Universal Series Technical Manual 5 Wiring Diagrams 5.1 CUA 18HVR4, CUA-24HVR4 P T1 P T2 P T3 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 95 R3250Hz Universal Series Technical Manual 5.2CUA-36HVR4, CUA-36HVR4S P T1 P T2 P T3 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 96 R3250Hz Universal Series Technical Manual 5.3 CUA 48HVR4,CUA 48HVR4S, CUA-55HVR4S GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 97 R3250Hz Universal Series Technical Manual GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 98: Capacity Table

    Input kW. 3.11 3.14 3.18 3.22 3.33 3.45 3.55 Total capacity kW 11.06 10.99 10.91 10.83 10.74 10.66 10.59 32ºC DB 23ºC WB Input kW. 3.12 3.15 3.19 3.23 3.34 3.47 3.57 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 99 5.44 5.36 4.83 22ºC Input kW. 1.75 1.60 1.55 1.53 1.50 1.49 1.42 Capacity kW 5.80 5.84 5.82 5.65 5.40 5.32 4.79 27ºC Input kW. 1.78 1.62 1.57 1.55 1.53 1.52 1.44 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 100 12.44 Capacity kW 5.68 5.19 5.04 4.97 4.87 4.83 4.61 22ºC Input kW. 14.94 15.05 14.99 14.56 13.91 13.71 12.34 Capacity kW 5.79 5.26 5.11 5.04 4.97 4.94 4.68 27ºC Input kW. GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 101 13.76 Capacity kW 6.30 5.75 5.59 5.51 5.39 5.35 5.12 22ºC Input kW. 16.51 16.63 16.57 16.08 15.38 15.15 13.64 Capacity kW 6.42 5.83 5.67 5.59 5.51 5.47 5.19 27ºC Input kW. GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 102: Electric Characteristics

    7 Electric Characteristics Indoor Units Indoor Fan Motor Model Voltage Min. Max. CUA-18HVR4 220-240V 0.12 CUA-24HVR4 220-240V 0.12 CUA-36HVR4 220-240V 0.12 CUA-36HVR4S 220-240V 0.12 CUA-48HVR4 220-240V 0.075*2 CUA-48HVR4S 220-240V 0.075*2 CUA-55HVR4S 220-240V 0.075*2 GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 103: Exploded View

    End bearing of louver Air inlet grille 24.7 Intermediate bearing of louver Top Cover assembly 24.8 Guard vane Weld assembly of Water drain pan Upper horizontal louver 16.1 Water outlet rubber cover Down horizontal louver GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 104 Air inlet header pipe assembly of evaporator Filter snap-gauge Left mounting plate of evaporator Air inlet grille Weld assembly of water drain pan Filter 32.1 Water outlet rubber cover Top Cover assembly Electric box cover GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 105: Accessories

    Name Shape Quantity Installation fittings 1.Hanging arm 2. Remote controller 3. Remote controller holder (optional) Controller 5. Mounting screw (ST2.9×10-C-H) 6. Alkaline dry batteries (AM4) 7. Installation & operation Others instruction manual GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 106: The Specification Of Power

    V/Ph/Hz 380~415/3/50 380~415/3/50 380~415/3/50 supply Power Supply Method From outdoor unit Outdoor unit Power Supply Wire 5×12AWG 5×12AWG 5×12AWG Indoor unit Power Supply Wire 4×14AWG 4×14AWG 4×14AWG Signal wiring 4×2.5 4×2.5 3×1.0 GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 107: Field Wiring

    R3250Hz Universal Series Technical Manual 11 Field Wiring Applies to (220V/50Hz)3.5kW,5.3kW,7.1kW GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 108: Troubleshooting

    Compressor driver error or 3 times of P4 error within 100 IPM protection minutes (reserve) (reserve) (reserve) (reserve) Outdoor unit DC fan motor 2 times of P9 error within 10 error minutes GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 109: Spot Check

    (maximum 99℃) Indoor demand after T2 Opening of EXV amendment Indoor room temperature (T1) Running frequency of temperature compressor Indoor coil middle temperature (T2) Primary voltage/4 temperature Indoor coil outlet temperature (T2B) temperature GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 110: Part 3 Outdoor Units

    1.Specification ................... 107 2.Dimensions ..................110 3.Service Space ................. 113 4.Wiring Diagrams ................114 5.Electric Characteristics ..............118 6.Operation Limits ................119 7.Sound Levels .................. 120 8.Exploded View ................120 9.Troubleshooting ................125 GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 111: Specification

    Power wiring 3×2.5 3×2.5 Connection wire Signal wiring 4×2.5 4×2.5 φ6.35/φ12.7 Φ9.52/Φ15.88 Liquid side/Gas side Refrigerant Max. pipe length piping Max. high drop cooling °C -15～50 -15～50 Ambient temp heating °C -15～30 -15～30 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 112 Power wiring 3×4.0 5×2.5 Connection wire Signal wiring 4×2.5 4×2.5 Φ9.52/Φ15.88 Φ9.52/Φ15.88 Liquid side/Gas side Max. pipe length Refrigerant piping Max. high drop cooling °C -15～50 -15～50 Ambient temp heating °C -15～30 -15～30 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 113 Power wiring 5×2.5 5×2.5 Connection wire Signal wiring 4×2.5 4×2.5 Φ9.52/Φ15.88 Φ9.52/Φ15.88 Liquid side/Gas side Max. pipe length Refrigerant piping Max. high drop cooling °C -15～50 -15～50 Ambient temp heating °C -15～30 -15～30 GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 114: Dimensions

    R3250Hz Universal Series Technical Manual 2 Dimensions 2.1 COU-18HDR4 2.2 COU-24HDR4 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 115 R3250Hz Universal Series Technical Manual 7.0KW 2.3 COU-36HDR4, COU-36HZDR4 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 116 R3250Hz Universal Series Technical Manual 2.4 COU-48HZDR4, COU-60HZVR GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 117: Service Space

    R3250Hz Universal Series Technical Manual 3 Service Space GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 118: Wiring Diagrams

    4.1 COU-18HDR4 ELECTRICAL WIRING DIAGRAM (Reserved) L-IN N-IN YE/GN GND1 YE/GN GND2 temp. Outdoor ambient YE/GN 4-WAY Outdoor coil temp. 4-WAY Exhaust temp. YE/GN DC-FAN EV-A TEST (Reserved) (Reserved) HEAT HEAT AC-FAN GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 119 YE/GN (Reserved) Outdoor coil temp. (Reserved) Outdoor ambient temp. 4-WAY CN19 Exhaust temp. (Reserved) (Reserved) (Reserved) CN20 YE/GN CN27 (Reserved) CN10 HEATY (Reserved) Solenoid valve or heat (CAP) CN23 CN24 CN21 (Reserved) GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 120 CN27 (Reserved) CN10 (Reserved) HEATY CN21 Solenoid valve or heat YE/GN CN23 CN24 (Reserved) CN25 Outdoor Display Board CN6 CN1 CN2 P E Q X E Y C R Y WG (Reserved) GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 121 R3250Hz Universal Outdoor Series Technical Manual 4.3COU-36HZDR4,COU-48HZDR4, COU-55HZDR4 IPM COMM L-OUT L-IN DOWN-DC FAN UP-DC FAN GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 122: Electric Characteristics

    R3250Hz Universal Outdoor Series Technical Manual 5 Electric Characteristics Outdoor Unit Model Outdoor Voltage Min. Max. motor (kw) COU-18HDR4 220~240V 0.072 COU-24HDR4 220~240V 0.072 COU-36HDR4 220~240V 0.12 COU-36HZDR4 380~415V 0.12 COU-48HZDR4 380~415V 0.1*2 COU-55HZDR4 380~415V 0.1*2 GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 123: Operation Limits

    R3250Hz Universal Outdoor Series Technical Manual 6 Operation Limits Operation mode Outdoor temperature(℃) Room temperature(℃) Cooling operation 16~32 -15～50 Heating operation -15～30 16~32 GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 124: Sound Levels

    Pressure level COU-18HDR4 COU-24HDR4 COU-36HDR4-A COU-36HZDR4 COU-48HZDR4 COU-55HZDR4 Note: Sound level is measured at a point 1 m in front of the unit, at a height of (Unit body height +1)/2 m. GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 125: Exploded View

    R3250Hz Universal Outdoor Series Technical Manual 8. Exploded View 8.1 COU-18HDR4 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 126 5.1 Right board pasted cotton component 13.1 Condenser assembly 5.2 Large hand-drawn cotton patch assembly 13.2 Manifold assembly 6 The seat plate 13.3 Shunt capillary assembly 7 inverter compressor 14 Back mesh connection Angle GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 127: Cou-24Hdr4

    R3250Hz Universal Outdoor Series Technical Manual 8.2 COU-24HDR4 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 128 15.1 Condenser 6.1 4-way valve assembly 15.2 Manifold welding assembly 6.2 Exhaust pipe assembly 15.3 Shunt components 6.3 Return pipe assembly 16 left side plate 7 Seat plate assembly 17 Back border GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 129: Cou-36Hdr4

    R3250Hz Universal Outdoor Series Technical Manual 8.3 COU-36HDR4 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 130 16.3 Compressor gasket assembly termianl 17 Oil components 6.4 Terminal bedplate 18 gas-liquid separator 7 Return pipe assembly 19 Inverter Compressor 8 Electronic expansion valve assembly 20 Seat plate assembly 9 Exhaust pipe assembly GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 131: Cou-36Hzdr4

    R3250Hz Universal Outdoor Series Technical Manual 8.4 COU-36HZDR4 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 132 Compressor gasket assembly termianl 16.4 Reactor mounting plate 6.4 Terminal bedplate Oil components 7 Return pipe assembly gas-liquid separator 8 Electronic expansion valve assembly Inverter Compressor 9 Exhaust pipe assembly Seat plate assembly GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 133: Cou-48Hzdr4, Cou-55Hzdr4

    R3250Hz Universal Outdoor Series Technical Manual 8.5 COU-48HZDR4, COU-55HZDR4 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 134 14.1 Motor support assembly Solder assembly of motor bracket connection 7 Maintenance panel 14.2 plate 8 Chassis welding assembly 14.3 Axial-flow fan 9 Front panel 14.4 Single shaft outdoor DC motor 10 Mesh enclosure GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 135: Troubleshooting

    TZB sensor fault temp. limit of condenser Lower frequency because of high Fan motor fault discharge temp. of compressor Lower frequency because of module temperature limit Lower frequency because of current limit GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 136 Quantity of IDU DC voltage Current Outdoor unit fan speed Master EXV opening degree Notice: For single phase units, an additional maintenance controller is needed to show error codes and do spot check. GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 137: Three-Phase Unit

    Refrigeration T2 overheating protection DC compressor module fault DC bus low voltage protection DC bus high voltage protection MCE fault / sync / closed loop Zero speed protection Phase sequence error protection 15Hz protection GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 138 16- Sets of indoor units 17- Number of working indoor units 18- Last fault or protection code No protection or fault display 19- Control parameter 20- Control parameter 21- --- Spot check over GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 139: Part 4 Installation

    R3250Hz Universal Outdoor Series Technical Manual Part 4 Installation 1.Precaution on Installation ..............136 2.Vacuum Dry and Leakage Checking ..........137 3.Additional Refrigerant Charge ............139 4.Water Drainage ................140 5.Insulation Work ................143 6.Test Operation .................145 GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 140: Precaution On Installation

    1.5. Be sure of no leakage by checking it with leak detector or soap water. 1.6. Cover the joint of the connecting pipe to the indoor unit with the soundproof / insulating sheath (fittings), and bind it well with the tapes to prevent leakage. GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 141: Vacuum Dry And Leakage Checking

     Vacuum placement test: place 1 hour when it achieves -755mmHg, pass if the vacuum watch shows no rising. If it rises, it shows there’s moisture or leakage point.  Vacuuming from liquid pipe and gas pipe at the same time.  Sketch map of common vacuum dry procedure. GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 142 Determinant: Pass if achieving below -755mmHg. If -755mmHg can’t be achieved in 2h, repeat procedure ③ and ④. ⑤. Vacuum placing test ······ 1h ⑥. Sketch map of special vacuum dry procedure GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 143: Additional Refrigerant Charge

    — — Added Refrigerant When Over 5m (One-way) 12g/m×(L-5) 24g/m×(L-5) Remark: R (g): Additional refrigerant to be charged L (m): The length of the refrigerant pipe (one-way) D (mm): Liquid side piping GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 144: Water Drainage

    4.2.1. If the pressure at the connection of the drainpipe is negative, it needs to design drainpipe trap. 4.2.2. Every indoor unit needs one drainpipe trap. 4.2.3. A plug should be designed to do cleaning. Plug GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 145: Upwards Drainage (Drain Pump)

    Calculate allowed volume =Total cooling capacity of indoor units(HP)×2 (l/ hr) Allowed volume(lean 1/50) (l/ hr) I.D. (mm) Thick ∽≤14 ￠25 Hard PVC ￠30 Hard PVC 14＜∽≤88 ￠40 Hard PVC 88＜∽≤334 ￠50 Hard PVC 175＜∽≤334 ￠80 Hard PVC 334＜∽ GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 146: Drainage Test

    Turn off the power and drain the remained water, and then turn on the air conditioner. Note: the drain stuff in the main water receipt plate is for maintenance. Stuff up the drain stuff to prevent water leakage. GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 147: Insulation Work

    5.2.2. Insulation for non-jointing parts and non-connection parts wrong right Gas pipe and liquid pipe should Insulate the gas pipe Insulate the gas pipe and not be put together to insulate (cooling only) liquid pipe GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 148: Drainage Pipe Insulation

    5.4.2 The gas and liquid pipe should be heat insulated individually, the connecting part should be heat insulated individually. 5.4.3 Use the attached heat-insulation material to insulate the pipe connections (pipes’ tie-in ,expand nut ) of the indoor unit GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 149: Test Operation

     Whether there is vibration or abnormal noise during operation.  Whether the generated wind, noise, or condensed of by the air conditioner have influenced your neighborhood.  Whether any of the refrigerant is leaked. GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 150: Part 5 Controller

    R3250Hz Universal Outdoor Series Technical Manual Control Part 5 Controller 1.Wireless Remote Controller ............147 2.Wired Controller ................147 GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 151: Wireless Remote Controller

    If the signal is received correctly, the air conditioner will issue a "beep" prompt.  If the remote controller is not available, please replace the new battery and try again. But if the problem persists, please contact the seller or our authorized service center. GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 152: The Icon Meaning Of Remote Controller

    R3250Hz Universal Outdoor Series Technical Manual 1.2 The icon meaning of remote controller GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 153: Button Function Of Remote Controller

    ① When pressing this key, the remote controller switches by "automatic, cooling, dehumidification, fan, heating, automatic" circularly. ② The dehumidification mode is locked at 25℃ and the temperature can not be adjusted. The GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 154 ① When the first power on, the remote controller is set to the automatic wind speed by default. In dehumidification mode, the wind speed is fixed to low wind and is not adjustable. By pressing the wind speed key, there is no response to the remote controller. GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 155 ECON mode. Switching mode will close ECON mode. （12） Sleep ① Pressing this key in the modes except of the fan mode, the sleep function switches between opening and closing. Switching mode will cancel sleep function. GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 156 On the shutdown interface, press the combinatorial key on the remote controller for 5 seconds to enter the address setting interface. The last address (when the first power on, 00 is displayed) and the"#" icon are displayed and flickering. ② The step instructions of setting address GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 157: Battery Replacement

    2 Wire Controller GD Chigo Heating & Ventilation Equipment Co., Ltd.

  • Page 158: Wired Controller

    R3250Hz Universal Outdoor Series Technical Manual 2 Wired Controller ZKX-C/TE-05 GD Chigo Heating & Ventilation Equipment Co., Ltd.
  • Page 159 R3250Hz Universal Outdoor Series Technical Manual GD Chigo Heating & Ventilation Equipment Co., Ltd.

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