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Parallel Rack Compressor Semi Hermetic Condensing Unit 4NES-20Y Industrial Cold Storage System

Parallel Rack Compressor Semi Hermetic Condensing Unit 4NES-20Y Industrial Cold Storage System

Parallel Compressor Rack Unit

Multi Compressor Condensing System

Industrial Refrigeration Rack

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Détails du produit
Mettre en évidence:

Parallel Compressor Rack Unit

,

Multi Compressor Condensing System

,

Industrial Refrigeration Rack

Conditions de paiement et d'expédition
Description du produit

Parallel Rack Semi Hermetic Condensing Unit 4NES-20Y-PR

Multi-compressor parallel rack design with built-in redundancy—if one compressor requires service, the others maintain cooling for uninterrupted cold storage operation.

20HP (Total)
Horsepower
4 * 3 Comp.
Cylinders
-25°C to +5°C
Temp Range
30600W @ -25°C
Cooling Capacity
R22/R404a/R507
Refrigerant
380V/3PH/50Hz
Power Supply

Product Introduction

The 4NES-20Y-PR is a premium Semi Hermetic Condensing Unit engineered by KUB Refrigeration Equipment Co., Ltd, designed to deliver exceptional cooling performance for commercial and industrial cold storage applications. This unit integrates a high-efficiency semi hermetic reciprocating compressor with a perfectly matched air-cooled condenser, providing a compact yet powerful refrigeration solution.

Manufactured in Shanghai, China, with over 20 years of refrigeration engineering expertise, the 4NES-20Y-PR combines advanced compressor technology with robust construction to ensure long-term reliable operation. Every unit undergoes rigorous factory testing including pressure tests, electrical safety checks, and performance validation before shipment.

Features & Characteristics

  • High-Efficiency Semi Hermetic Compressor: Serviceable reciprocating design with precision-machined components for extended service life and easy field maintenance.
  • Optimized Condenser Design: High-efficiency finned tube condenser with large-diameter axial fans delivers superior heat rejection and stable condensing pressure.
  • Multi-Layer Safety Protection: Integrated controller with phase loss/sequence protection, high/low pressure cutouts, oil pressure safety switch, and motor overload protection.
  • Wide Refrigerant Compatibility: Engineered to operate with multiple refrigerants, providing flexibility for different regional requirements and application needs.
  • Low Vibration Operation: Optimized mass balance design with vibration isolation mounts ensures quiet, stable operation suitable for various installation environments.
  • Factory Pre-Charged & Tested: Pre-wired control panel, pre-piped connections, and comprehensive factory testing minimize on-site installation time.
  • Weather-Resistant Construction: Durable powder-coated steel frame and weather-protected electrical enclosure suitable for indoor and sheltered outdoor installation.
  • Energy-Efficient Motor: High-efficiency motor with broadband characteristics delivers optimal performance at both full-load and part-load conditions.

Why Choose KUB?

  • 20+ Years of Expertise: KUB has specialized in refrigeration equipment manufacturing since 2000, serving customers in over 30 countries worldwide.
  • Rigorous Quality Control: Every unit undergoes comprehensive factory testing including pressure tests, electrical safety verification, and full-load performance runs.
  • Global Certifications: Our products meet CE standards and comply with international refrigeration safety and performance requirements.
  • One-Year Comprehensive Warranty: Full coverage on manufacturing defects with responsive after-sales support and readily available spare parts.
  • Customization Capability: Our engineering team can customize units to meet specific voltage, refrigerant, and application requirements.
  • Competitive Value: Factory-direct pricing with premium component quality delivers exceptional return on investment for cold storage operators.
  • Fast Global Shipping: Efficient logistics network ensures timely delivery to ports worldwide with professional export packaging.

Technical Specifications

ParameterSpecification
Model4NES-20Y-PR
Configuration3-Compressor Parallel Rack
Compressors4NES-14Y * 2 + 4PES-12Y * 1
Total Horsepower20HP
Individual HP12HP * 2 + 12HP * 1
Power Supply380V/3PH/50Hz
Evaporating Temp Range-25°C to +5°C
Cooling Capacity @ -25°C30600W
Cooling Capacity @ -15°C42880W
RefrigerantR22 / R404a / R507
CondenserAir Cooled, 4 * 400mm Axial Fans
Capacity ControlStaged (33%/66%/100% via compressor cycling)
Control SystemMicroprocessor with LCD Display
Oil ManagementIndividual Oil Separators + Common Reservoir
Suction Header54mm (2-1/8")
Liquid Header28mm (1-1/8")
Net Weight520kg
Dimensions (L*W*H)2200 * 1100 * 1600mm
CertificationCE
Warranty1 Year

Applications

Designed for large cold storage warehouses, food processing and distribution centers, supermarket rack systems, industrial plants with 24/7 cooling demands, and any facility requiring scalable, redundant refrigeration with zero tolerance for downtime.

Frequently Asked Questions

Q: How does the redundancy feature work?
A: The rack has 3 independent compressors on a common frame. If one compressor requires maintenance, the remaining 2 continue operating at reduced capacity, ensuring your cold storage stays cold while repairs are made.
Q: How is capacity controlled?
A: The microprocessor controller stages compressors on/off based on suction pressure. At low load, only 1 compressor runs (33%). As load increases, additional compressors start automatically (66%, then 100%).
Q: Can additional compressors be added later?
A: The rack frame and piping headers can accommodate additional compressor positions. Contact our engineering team for expansion possibilities based on your specific rack configuration.
Q: Is the rack factory assembled and tested?
A: Yes, every parallel rack is fully assembled, piped, wired, pressure-tested, and run-tested under load at our factory before shipment. This minimizes on-site installation time and commissioning risk.
Q: What maintenance is required?
A: Routine maintenance includes oil level checks, filter-drier replacement, condenser coil cleaning, and electrical connection inspection. We provide a comprehensive maintenance schedule and spare parts list with each unit.

Packaging & Shipping

  • Packaging: Export-standard plywood case/pallet with moisture-proof wrapping and reinforced corner protection.
  • Shipping Port: Shanghai/Ningbo, China
  • Delivery Time: 15-25 working days after order confirmation, depending on configuration and quantity.

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