Parallel Rack Compressor Semi Hermetic Condensing Unit 4NES-20Y Industrial Cold Storage System
Price:
Negotiable
MOQ:
Negotiable
Delivery Time:
Negotiable
Product Description
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
| Parameter | Specification |
|---|---|
| Model | 4NES-20Y-PR |
| Configuration | 3-Compressor Parallel Rack |
| Compressors | 4NES-14Y * 2 + 4PES-12Y * 1 |
| Total Horsepower | 20HP |
| Individual HP | 12HP * 2 + 12HP * 1 |
| Power Supply | 380V/3PH/50Hz |
| Evaporating Temp Range | -25°C to +5°C |
| Cooling Capacity @ -25°C | 30600W |
| Cooling Capacity @ -15°C | 42880W |
| Refrigerant | R22 / R404a / R507 |
| Condenser | Air Cooled, 4 * 400mm Axial Fans |
| Capacity Control | Staged (33%/66%/100% via compressor cycling) |
| Control System | Microprocessor with LCD Display |
| Oil Management | Individual Oil Separators + Common Reservoir |
| Suction Header | 54mm (2-1/8") |
| Liquid Header | 28mm (1-1/8") |
| Net Weight | 520kg |
| Dimensions (L*W*H) | 2200 * 1100 * 1600mm |
| Certification | CE |
| Warranty | 1 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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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Shanghai KUB Refrigeration Equipment Co., Ltd.
Location
No. 328 on the 4th plant hengyong Road, Jiading District, Shanghai
Contact Person
Amy lu