Air-Cooled Screw Chillers

Overview:

Air-cooled screw chillers are high-performance cooling systems designed for a wide range of industrial and commercial applications. Utilizing screw compressors, these chillers are known for their energy efficiency, reliability, and ability to operate in various environmental conditions without the need for water. By using air as the primary heat exchange medium, air-cooled screw chillers provide an efficient, low-maintenance, and cost-effective solution for temperature control in facilities where water resources are limited or unavailable.

Key Features:

• Screw Compressor Technology:
  • Twin-Screw Compressors: Air-cooled screw chillers are equipped with high-efficiency twin-screw compressors, which provide superior performance, lower energy consumption, and smooth operation.
  • Automatic Capacity Control: These compressors adjust their capacity based on the cooling demand, ensuring the system operates at optimal efficiency under varying loads.
  • Quiet and Vibration-Free Operation: Screw compressors are known for their quiet operation and minimal vibration, making them ideal for noise-sensitive environments.
• Air-Based Heat Exchange:
  • Air-Cooled Condensers: The chiller uses air as the medium for heat rejection, making it perfect for locations where water is scarce or where water-based cooling systems are impractical.
  • Efficient Heat Dissipation: Air-cooled condensers are designed to maximize heat transfer efficiency, ensuring the system operates effectively, even in warmer climates.
• High-Efficiency Axial Fans:
  • Efficient Airflow: Axial fans are used to draw air through the condenser coils, ensuring effective heat dissipation while minimizing energy consumption.
  • Quiet Operation: The fan design reduces operational noise, making it suitable for installations in sensitive areas such as hospitals or office buildings.
• Compact and Space-Saving Design:
  • Smaller Footprint: Air-cooled screw chillers have a smaller physical footprint compared to water-cooled systems, making them ideal for installations in areas with limited space.
  • Modular Construction: The modular design allows for easy scaling and installation, providing flexibility in meeting varying cooling demands.
• Energy-Efficient Operation:
  • Optimized Performance: The advanced compressor technology, efficient heat exchange, and variable capacity control result in lower operational energy costs.
  • Integrated VFD (Variable Frequency Drive): Some models feature a VFD that adjusts the motor speed, further optimizing energy consumption based on load demand.
• Low Maintenance Requirements:
  • No Water Treatment Needed: Unlike water-cooled systems, air-cooled screw chillers do not require water treatment or additional maintenance related to water-based cooling systems.
  • Long Life Cycle: Designed for durability, air-cooled screw chillers are built to withstand the rigors of continuous operation in challenging environments.

Benefits:

• Energy Savings: The combination of screw compressor technology, efficient heat exchange, and variable capacity control results in significant energy savings, especially during partial load conditions.
• Environmentally Friendly: Air-cooled screw chillers use refrigerants that are safe for the environment, and they do not require water, which helps conserve a critical resource.
• Flexibility: These chillers are ideal for a variety of applications and are available in various sizes to meet the specific cooling requirements of small to large-scale facilities.
• Reliable Performance: Air-cooled screw chillers provide stable and consistent cooling even under demanding conditions, ensuring reliable operation for critical systems.
• Reduced Operational Costs: The lack of water treatment and associated infrastructure cuts down on operational and maintenance costs, offering a low total cost of ownership.

Applications:

Air-cooled screw chillers are versatile and can be used in a variety of industrial, commercial, and residential applications:

• Commercial HVAC Systems: Used in air conditioning systems for commercial buildings, including offices, malls, and hotels, ensuring a comfortable indoor environment.
• Industrial Manufacturing: Essential in manufacturing processes, particularly in industries such as plastics, pharmaceuticals, food and beverage, and chemical processing, where precise temperature control is critical.
• Data Centers: Used for cooling server rooms and data centers to maintain optimal operating conditions for sensitive equipment.
• Cold Storage: Provides cooling for cold storage facilities, ensuring food and pharmaceuticals are stored at the correct temperatures.
• Plastic Injection Molding: Ensures molds are kept at the correct temperature during the injection molding process, improving product quality and reducing cycle time.
• Electronics Manufacturing: Used in the cooling of electronics components during production to prevent overheating and ensure product quality.

Technical Specifications:

No	Cooling Capacity (TR)	Cooling Power (kW)	AMP	Connected Load (kW)	Cable Size (mm²)	Max. Flow (LPM)	Process Connection (inches)
1	33	116.6	67.66	37.6	50	350	2''
2	40	140.67	84.6	47	50	550	2.5''
3	50	175.8	104.4	58	50	800	3''
4	60	211	140.4	78	70	960	3''
5	71	249.7	151.2	84	95	1100	4''
6	92	323.5	190.8	106	120	1400	4''
7	114	400.9	219.6	122	150	1600	6''
8	125	439.6	259.2	144	185	1850	6''

Design Features:

• Screw Compressors with Dual Circuits: Dual compressor circuits provide redundancy and ensure continuous operation even if one circuit fails, enhancing system reliability.
• High-Performance Condenser Coils: Condenser coils are designed to maximize the heat transfer efficiency of the system, ensuring that heat is effectively dissipated even during peak load conditions.
• Microprocessor-Based Controls: The control system adjusts operational parameters based on real-time performance data, optimizing energy use and cooling efficiency.
• Energy-Saving Features: Integrated variable frequency drives (VFDs) adjust motor speeds according to cooling load demands, optimizing energy consumption without compromising performance.
• Corrosion-Resistant Components: Built to withstand harsh operating environments, air-cooled screw chillers are made from high-quality,