Product Overview The Copeland ZPD series comprises high-performance, semi-hermetic reciprocating (piston) refrigeration compressors, engineered for commercial medium- and low-temperature refrigeration systems. Renowned for their robust durability, ease of maintenance, and broad applicability, the ZPD137, ZPD154, and ZPD182 are three adjacent capacity models within this series, catering to medium- to large-scale refrigeration needs. They are widely used in diverse applications, from supermarket refrigeration to large cold storage facilities, and are typically designed for use with refrigerants like R404A, R507, or R22 (being phased out). Key Features
Robust Semi-Hermetic Design
Features a heavy-duty crankcase capable of withstanding demanding operating conditions (e.g., liquid slugging), ensuring high reliability.
Excellent serviceability. Key internal components (e.g., valve plates, bearings) can be maintained or replaced on-site, significantly extending service life and reducing lifecycle costs.
High Efficiency and Performance
Incorporates optimized valve plates and motor designs for high energy efficiency under rated operating conditions.
Delivers high volumetric efficiency and strong refrigeration capacity.
Good Liquid Tolerance
The piston design is generally less sensitive to minor liquid refrigerant return (floodback) compared to scroll compressors, offering greater system resilience.
Wide Operating Range
Suitable for both medium-temperature (approximately -10°C evaporation) and low-temperature (approximately -30°C or lower evaporation) applications.
Model Differentiation The primary difference between these three models is their displacement and refrigeration capacity; a higher number indicates greater capacity.
ZPD137: Medium capacity, typically corresponding to approximately 10-12 Horsepower (HP).
ZPD154: Medium-to-Large capacity, typically corresponding to approximately 13-15 HP.
ZPD182: Large capacity, typically corresponding to approximately 18-20 HP.
Typical Applications
Supermarket Centralized Refrigeration Systems: Providing cooling for medium- and low-temperature display cases.
Industrial Cold Storage Rooms: Used in small to large low-temperature freezing and冷藏 storage facilities.
Food Processing and Distribution Centers: Serving cooling tunnels, processing area needs.
Ice Machines.
Important Notes
Professional Component: ZPD series compressors are complex industrial devices. Their selection and installation must be performed by qualified refrigeration engineersbased on specific system operating conditions (evaporation temperature, condensation temperature, refrigerant, etc.).
System Matching: Must be matched with appropriate condensing units (air-cooled or water-cooled), evaporators, and control systems for proper operation.
Official Documentation: For the most accurate information (e.g., detailed performance curves, dimensional drawings, electrical specifications), consult the official "Copeland ZPD Series Product Technical Manual".
Summary The Copeland ZPD137, ZPD154, and ZPD182 are classic semi-hermetic piston compressor models in the field of commercial refrigeration. They form a capacity ladder, providing reliable, durable, and maintainable solutions for medium to large refrigeration requirements. Compared to scroll compressors, their key advantage lies in their field serviceability, making them particularly suitable for industrial and large commercial applications where long-term operational reliability and maintenance convenience are prioritized.
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