ZR SERIES SCROLL COMPRESSSOR ZR28K3-PFJ ZR34KH-PFJ Jair Cooled And Water Cooled Units

These two Copeland ZR series compressors adopt patented flexible scroll technology, achieving an energy efficiency that is 12% higher than advanced piston compressors in the market. The COP value can reach 3.15-3.25, and the EER value reaches 11.4, demonstrating significant energy-saving effects. 

Additionally, with fewer moving parts and the use of axial and radial flexible designs, they offer unprecedented resistance to liquid slugging and tolerance for impurities. The built-in motor short-circuit protection effectively safeguards the motor, ensuring extremely high reliability. 

Moreover, the noise level is more than 5 decibels lower than that of piston compressors, resulting in smooth and quiet operation. The unique unloaded startup design eliminates the need for a start capacitor and relay during single-phase compressor startup, simplifying the system design.

1. Commercial and Residential Air Conditioning Systems

• Variable Refrigerant Flow (VRF) Systems: Serve as the core power source, suitable for small to medium-sized commercial multi-split central air conditioning systems.

  
  

• Packaged Air Conditioning Units: Used in independent or modular air conditioning units for commercial spaces such as shopping malls, office buildings, hotels, and restaurants.

  
  

• Residential Central Air Conditioning: Suitable for household central air conditioning systems in villas, high-end apartments, and similar settings.

  
  

2. Heat Pump Systems

• Air-Source Heat Pumps: Used for dual-purpose heating in winter and cooling in summer, particularly suitable for temperate climate regions like the Yangtze River Basin.

  
  

• Commercial Heat Pump Water Heaters: Provide domestic hot water or heating sources for hotels, schools, hospitals, and other facilities.

  
  

3. Commercial Refrigeration Equipment

• Refrigerated Display Cabinets: Refrigerated and freezer cabinets for supermarkets and convenience stores.

  
  

• Cold Storage Units: Refrigeration compressor units for small cold storage facilities (medium-temperature storage between -10°C and 10°C).

  
  

• Cold Chain Transport Refrigeration: Refrigeration systems for refrigerated trucks and delivery cold storage cabinets.

  
  

4. Special Industrial and Communication Applications

• Industrial Process Cooling: Supporting cooling systems for equipment such as injection molding machines, laser equipment, and chemical reactors.

  
  

• Telecom Base Station Air Conditioning: Provides a constant temperature and humidity environment for telecom base station equipment.

  
  

5. Freezing and Low-Temperature Applications (Requires Low-Temperature Components)

• Low-Temperature Freezing Equipment: When equipped with accessories such as liquid injection cooling and economizers, it can be used for low-temperature freezing (above -25°C) and freeze-drying applications.

  
  

Startup and operation failures？

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  Causes: Power failure, overload protector trip, contactor failure, start capacitor damage, thermostat failure

  
  

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  Solutions: Check the power supply voltage, reset the overload protector, replace the contactor or start capacitor, check the thermostat setting

  
  

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  Causes: Too much or too little refrigerant, system blockage, poor condenser heat dissipation, overload protector activation

  
  

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  Solutions: Adjust the refrigerant charge, clean the system, improve condenser heat dissipation conditions, check the overload protector