Air Cooled
Scroll Chillers

7Kw to 130Kw

• Weather proof
• Compact
• Efficient
• 2 & 3 Step Capacity Control Option
• Inbuilt Primary & Secondary Pump Option
• Microprocessor Controlled with MODBUS Option

Air Cooled Scroll Chillers

When a process or facility requires dependable cooling without the complexity of a cooling tower, an air cooled scroll chiller can be a practical and efficient solution. These chillers are designed to remove heat from chilled water or another compatible cooling fluid and reject that heat directly to the surrounding air. This eliminates the need for a separate cooling tower and reduces the water requirement of the cooling system.

Reynold India offers air cooled scroll chillers designed for industrial and commercial cooling applications where compact construction, reliable temperature control and ease of operation are important. The current range is available from 7 kW to 130 kW, making these systems suitable for a variety of small and medium-capacity cooling requirements. The chillers are designed with features such as weather-proof construction, compact configuration, multi-step capacity control and optional integrated pumping arrangements.

What Is an Air Cooled Scroll Chiller?

An air cooled scroll chiller is a refrigeration system that uses scroll compressors to produce chilled fluid for a cooling application. Unlike a water cooled chiller, the condenser rejects heat directly into the ambient air through an air-cooled condenser and condenser fans.

The basic refrigeration cycle consists of the compressor, condenser, expansion device and evaporator. The scroll compressor compresses the refrigerant and sends it to the condenser. Heat is then rejected to the atmosphere. The refrigerant passes through the expansion device, where its pressure and temperature are reduced, before entering the evaporator. In the evaporator, the refrigerant absorbs heat from the process fluid, producing the required cooling.

This arrangement provides a relatively straightforward cooling system without the additional infrastructure associated with cooling towers, condenser-water pumps and cooling-tower water treatment.

Why Choose Scroll Compressor Technology?

Scroll compressors are widely used in applications where smooth operation, compact equipment and dependable cooling are required. A scroll compressor works through the interaction of two scroll elements, with one scroll orbiting around another to compress the refrigerant.

For small and medium cooling loads, this technology can provide an effective alternative to larger compressor arrangements. Multiple-compressor configurations can also provide capacity flexibility and operational redundancy depending on the system design.

For industrial users, this can be particularly useful when cooling demand changes during production. Instead of operating a large compressor continuously at full capacity, the refrigeration system can respond through staged capacity control.

Key Features of Reynold India Air Cooled Scroll Chillers

Reynold India's air cooled scroll chillers are designed with practical features for industrial and commercial environments. The product range includes models from 7 kW to 130 kW.

• Weather-Proof Construction: The chiller is designed for outdoor installation, with weather-resistant construction suitable for demanding operating environments. Proper installation and adequate airflow around the condenser remain important for maintaining reliable performance.
• Compact Design: The compact construction makes these chillers suitable where equipment space is limited. Their design can simplify installation and integration into existing cooling systems.
• 2 & 3 Step Capacity Control: Depending on the configuration, capacity control can be provided in two or three steps. This allows the system to match cooling output more closely with the actual cooling requirement instead of continuously operating at maximum capacity.
• Inbuilt Primary and Secondary Pump Option: The chiller can be configured with an inbuilt primary and secondary pump arrangement. This can simplify the overall system design and reduce the amount of external equipment required.
• Microprocessor Control: Microprocessor-based control provides automatic monitoring and control of important operating parameters. The system can be configured with MODBUS communication, allowing integration with suitable building or plant monitoring systems.

How Does an Air Cooled Scroll Chiller Work?

The operation starts when warm return water or process fluid enters the evaporator. Heat from the fluid is transferred to the refrigerant flowing through the evaporator. The cooled fluid then returns to the application.

The refrigerant absorbs this heat and changes state before entering the compressor. The scroll compressor increases the refrigerant pressure and temperature. The high-temperature refrigerant then flows through the air-cooled condenser, where condenser fans move ambient air across the heat exchanger and reject the absorbed heat.

After condensation, the refrigerant passes through an expansion device. Its pressure decreases, preparing it to absorb heat again in the evaporator. This cycle continues as long as cooling is required.

The controller continuously monitors the system and manages compressor operation, temperature and other safety parameters according to the selected configuration.

Applications of Air Cooled Scroll Chillers

Air cooled scroll chillers can be used in a wide range of industrial and commercial applications. The appropriate chiller capacity depends on the actual heat load, required supply and return temperatures, ambient conditions and process requirements.

• Plastic Processing: Plastic injection moulding, extrusion and other plastic processing operations often require controlled cooling. A properly selected process chiller can help maintain stable cooling-water temperatures for moulds, hydraulic systems and production equipment.
• Manufacturing Industries: Manufacturing plants use chilled water for process cooling, machine cooling and temperature control. An air cooled scroll chiller can be integrated with a closed-loop cooling circuit to provide consistent process temperatures.
• HVAC and Comfort Cooling: These chillers can also be used for air-conditioning and comfort-cooling applications where chilled water is circulated through air-handling units or other terminal equipment.
• Pharmaceutical and Laboratory Applications: Controlled temperature is important in many pharmaceutical and laboratory environments. Chillers can be used for equipment and process cooling where the required temperature and water quality specifications are properly defined.
• Food and Beverage Processing: Food and beverage manufacturing processes may require cooling for machinery, production processes or secondary cooling circuits. The chiller configuration should be selected according to the process temperature and hygiene requirements.
• Data and Equipment Cooling: Equipment rooms and other heat-generating environments may require continuous cooling. Air cooled chillers can provide chilled water to suitable cooling systems designed for the particular heat load.

Advantages of Air Cooled Scroll Chillers

One of the main advantages of an air cooled system is that it does not require a cooling tower. This can reduce water consumption and simplify the cooling infrastructure.

Other advantages include:

• Compact and practical system design
• No cooling-tower water circuit
• Suitable for outdoor installation
• Relatively straightforward installation
• Multi-step capacity control
• Optional integrated pumping arrangements
• Microprocessor-based control
• MODBUS communication option
• Suitable for a wide range of industrial and commercial applications

The actual energy consumption and operating cost of a chiller depend on factors such as cooling load, ambient temperature, chilled-water temperature, compressor efficiency, condenser cleanliness and operating hours. Therefore, selecting a chiller based only on nominal capacity is not sufficient.

How to Select the Right Air Cooled Scroll Chiller?

Selecting the correct chiller requires more than simply matching the required tonnage. The application should first be evaluated to determine the actual heat load.

Important parameters include:

• Cooling capacity: Determine the actual process heat load and provide an appropriate design margin without excessive oversizing.
• Entering and leaving fluid temperature: The required supply and return temperatures directly influence chiller selection.
• Ambient temperature: Air cooled chillers reject heat to the atmosphere, so the design ambient condition is an important consideration.
• Fluid flow rate: The evaporator and pump arrangement must be selected according to the required flow and pressure drop.
• Operating schedule: Continuous operation, seasonal operation and variable loads can affect the appropriate compressor and control configuration.
• Installation conditions: Adequate clearance around the condenser is necessary to allow proper airflow and heat rejection.

Reynold India Air Cooled Scroll Chillers

Reynold India manufactures industrial and commercial cooling solutions, including air cooled scroll chillers. The company states that its chiller portfolio serves industries such as pharmaceuticals, plastics, food processing and power generation, along with customized cooling applications.

The air cooled scroll chiller range is positioned as a compact and efficient solution for applications requiring dependable chilled-fluid circulation without a cooling tower. Reynold India's published product information also identifies refrigerant options including R-134a, R-407C and R-410A for its air-cooled scroll chiller range, subject to model and configuration.

With application-specific engineering, the chiller can be selected according to cooling capacity, operating temperature, fluid flow, ambient conditions and required control features.

Frequently Asked Questions

• What is an air cooled scroll chiller? An air cooled scroll chiller is a refrigeration system that uses a scroll compressor and an air-cooled condenser to produce chilled water or process fluid. Heat is rejected directly to the surrounding air.
• What is the capacity range of Reynold India air cooled scroll chillers? The published product page currently lists an air cooled scroll chiller range of 7 kW to 130 kW.
• Does an air cooled scroll chiller require a cooling tower? No. An air cooled chiller rejects condenser heat directly to ambient air, so a separate cooling tower and condenser-water circuit are not required.
• Where are air cooled scroll chillers used? They can be used for industrial process cooling, plastic processing, HVAC, equipment cooling, manufacturing, pharmaceutical applications and other processes requiring controlled cooling.
• Can the chiller include a pump? Yes. Reynold India's published specifications include an option for an inbuilt primary and secondary pump arrangement.

Choose the Right Cooling Solution with Reynold India

A reliable chiller should be selected according to the actual process requirement rather than capacity alone. Cooling load, operating temperatures, fluid flow, ambient conditions, installation environment and control requirements all influence the final selection.

Reynold India's air cooled scroll chillers provide a practical solution for customers looking for compact, controlled and dependable cooling without the need for a cooling tower. With capacities currently listed from 7 kW to 130 kW and options such as multi-step capacity control, integrated pumps and microprocessor/MODBUS control, the range can be configured for different industrial and commercial requirements.

For a project-specific selection, customers should share their required cooling capacity, inlet and outlet temperature, fluid flow rate, ambient temperature and application details with the Reynold India engineering team. This allows the chiller to be selected according to actual operating conditions and helps ensure reliable performance throughout the equipment's service life.