Wide capacity Low Noise ZR250KC-TWD ZR310KC-TWD ZR380KC-TWD ZR81KC-TFD Widely used in air conditioning
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This compressor adopts valley wheel vortex technology and has the following characteristics:
Excellent reliability and high efficiency
Wide product capacity range
Lower oil circulation rate
Superior resistance to liquid impact
Lower levels of noise and vibration
Lower LCCP (Life Cycle Climate Performance)
It is suitable for split air conditioners, rooftop units, unit units to cold water systems, and can support dual machine parallel and triple machine parallel to expand the capacity range
Copeland ZR81KC / ZR250KC / ZR310KC / ZR380KC Series Semi-Hermetic Piston Compressors - Product DescriptionProduct Overview This series represents medium to large-capacity semi-hermetic piston compressors from the renowned Copeland ZR series. They are engineered for heavy-duty commercial and industrial refrigeration applications. The "semi-hermetic" design means the motor and compressor are housed in a sealed but bolted-together casing, offering both the protection of a hermetic unit and the serviceability of an open-drive compressor. This series offers a wide power range from approximately 20 HP to 50 HP, serving as a core power source for large cold storage and industrial refrigeration systems.
Key Specifications Comparison
Parameter
ZR81KC-TFD
ZR250KC-TWD
ZR310KC-TWD
ZR380KC-TWD
Compressor Type
Semi-Hermetic Piston (Reciprocating)
Semi-Hermetic Piston (Reciprocating)
Semi-Hermetic Piston (Reciprocating)
Semi-Hermetic Piston (Reciprocating)
Rated Capacity (Approx.)
~ 22 kW
~ 70 kW
~ 86 kW
~ 106 kW
Equivalent Horsepower
~ 20 HP
~ 30 HP
~ 37 HP
~ 45 HP
Refrigerant
R22, R404A, R507, R134a, etc. (Wide compatibility)
R22, R404A, R507, R134a, etc.
R22, R404A, R507, R134a, etc.
R22, R404A, R507, R134a, etc.
Number of Cylinders
6
8
8
8
Power Supply
380V/50Hz/3PH
380V/50Hz/3PH
380V/50Hz/3PH
380V/50Hz/3PH
Design Focus
Medium duty, compact structure
Large industrial grade, high reliability
Large industrial grade, high reliability
Large industrial grade, high reliability
Note:The above are general parameters. For precise specifications, consult the official technical manual. Suffixes like -TFD or -TWD may indicate specific voltage configurations.
Shared Product Features
Industrial-Grade Durability & Long Life:
Constructed with heavy-duty cast iron crankcases, high-strength crankshafts, and precision bearings. Designed for harsh conditions and 24/7 continuous operation, offering a long service life.
Exceptional Versatility and Compatibility:
Wide Refrigerant Compatibility:Suitable for a broad range of refrigerants, from legacy R22 to modern HFCs like R404A, R507, and R134a, facilitating system retrofits and upgrades.
Broad Operating Range:Capable of stable performance across a wide range of conditions, from low-temperature freezing to high-temperature applications.
Ease of Maintenance:
Semi-Hermetic Design:Allows for field serviceability. Key components like valve plates and piston rings can be replaced on-site, significantly reducing lifecycle costs and downtime.
Internal Accessibility:Service technicians have direct access to internal moving parts for inspection and repair.
High Efficiency:
Incorporates high-efficiency motors and optimized valve design to maintain high energy efficiency even under heavy loads.
Primary Applications
This series is a mainstay in large-scale industrial refrigeration systems. Typical applications include:
Large-Scale Freezing & Refrigeration:
Large-scale logistics cold storage warehouses and distribution centers.
Blast freezers and spiral freezers in food processing plants (seafood, meat).
Low-temperature process cooling in the chemical industry.
Industrial Refrigeration:
The main compressor in large centralized refrigeration systems.
Ice rink refrigeration systems.
Specialized process cooling units.
Selection and Usage Notes
Critical System Matching:Professional engineering is essential to precisely match the compressor with appropriately sized condensers, evaporators, expansion valves, and auxiliary components based on the cooling load and operating conditions.
Professional Installation & Commissioning:Due to their large size and power, they require a solid foundation, professional piping, and strict commissioning procedures (evacuation, refrigerant charging).
Maintenance Requirements:Require regular professional maintenance, including oil checks, filter cleaning, and inspection of valves and seals to ensure long-term reliability.
Noise and Vibration:Piston compressors generally produce higher noise and vibration levels than scroll compressors of similar capacity. Vibration isolation and acoustic considerations are necessary during installation.
Summary: The Copeland ZR81KC to ZR380KC series are proven, industrial-grade semi-hermetic piston compressors. They hold an irreplaceable position in large-scale industrial refrigeration due to their unmatched ruggedness, wide applicability, and convenient maintainability. For heavy-duty applications requiring maximum durability and serviceability, they are a more classic and robust choice compared to scroll compressors.
We are a professional supplier of air conditioning and refrigeration compressors, committed to providing customers with high-quality compressors from globally renowned brands, including Copeland, Daikin, Danfoss, GMCC, Sanyo, Panasonic, LG, Samsung, and Mitsubishi.
