I. Product Name: Screw-type Condensing Unit

II. Product Features

1. High reliability and long-term stability

Core durability: Equipped with a high-performance semi-enclosed screw compressor featuring precision rotor meshing, resulting in minimal wear and a design life exceeding 100,000 hours—significantly superior to piston compressors.

Comprehensive safety protection: The system features a full suite of built-in safety protections including phase loss, high/low voltage, oil pressure, overload, overheating, phase reversal, and oil pressure differential detection, with automatic fault warnings to eliminate the risk of complete equipment damage.

High-performance low-temperature adaptation: The single-stage evaporation temperature reaches 45°C, while the two-stage model operates at as low as 65°C, making it suitable for extreme low-temperature environments such as quick-freezing warehouses and low-temperature tunnels.

Continuous operation assurance: Key components utilize internationally renowned brands (such as Bizer and Hanfeng) with industrial-grade design, enabling 24/7 uninterrupted operation and an exceptionally low failure rate.

2. Highly efficient and energy-saving, with optimal cost

Stepless energy regulation: The slide valve enables continuous capacity adjustment from 100% to 10%. During partial load operation (30%-70%), the COP remains highly efficient, preventing a sharp decline in efficiency under low-load conditions for individual units.

Significant overall energy savings: Compared to piston units with equivalent cooling capacity, energy consumption is reduced by 30%-50%; the two-stage compression model achieves a 50% improvement in energy efficiency over single-stage systems, resulting in substantial reductions in long-term operating costs.

Multi-temperature zone adaptation: Compatible with 2–3 different evaporation temperatures, meeting the cooling requirements of cold storage, refrigerators, and ice makers—making it a versatile multi-purpose unit.

High-efficiency heat exchange design: A copper tube with internal threads paired with a hydrophilic aluminum foil heat exchanger enhances heat transfer efficiency, while the integration of an economizer further reduces energy consumption.

3. Flexible capacity with strong adaptability

Extensive cooling capacity: Each unit delivers 50–2000 kW of cooling power, with 2–6 units capable of parallel operation to meet cooling demands ranging from 10 to 500 kW, making it suitable for refrigeration applications from small to large-scale.

Modular scalability: Capacity expansion can be achieved simply by adding units in series without replacing the main unit, enabling phased investment and flexible scaling. Multi-condition compatibility: Supports various refrigerants including R22/R404A/R507A/R134a, with optional air-cooled or water-cooled configurations, catering to diverse environments and budgets.

4. Compact structure with high integration

Integrated Design: The compressor, condenser, liquid receiver, oil separator, and main control system are integrated into a single rack, eliminating redundant equipment and simplifying on-site installation.

Space-saving design: The compact overall layout reduces the server room area by over 30% compared to multiple standalone units, achieving high space utilization. Low noise and vibration: The screw drives operate smoothly with minimal vibration, producing 8–10 dB less noise than piston chillers of equivalent cooling capacity, creating a more environmentally friendly server room environment. Ample maintenance space: The modular layout allows easy disassembly of critical components, eliminating the need to dismantle the entire unit for routine maintenance.

5. Intelligent operation and maintenance, convenient management

PLC Centralized Control: Industrial-grade microcomputer/PLC-based automatic group control system with comprehensive remote monitoring, fault alarms, and data recording capabilities. It supports both Chinese and English interfaces for intuitive operation.

Online maintenance: A single compressor can be shut down independently for inspection without disrupting the system, minimizing downtime losses.

Reliable oil return design: High-efficiency three-stage oil separation combined with electronic oil balance, achieving oil-gas separation particles <1μm, eliminating the need for daily refueling and reducing maintenance costs.

Digitalized Management: Real-time display of operational parameters (temperature, pressure, energy consumption), with historical data traceability support to facilitate energy consumption analysis and equipment optimization.