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Scalable & Easy to Integrate Cooling System
- High scalability: Add chiller units on demand
- Cooling capacity: 30kW to 480kW
- Control temperature range: 7°C to 55°C
- Eco-friendly refrigerant: R410a and R407c
- Small footprint for easy installation
Your No.1 Air Cooled Modular Chiller Manufacturer and Supplier in China
ChillerOne air-cooled modular chillers reject heat directly to ambient air, making them the perfect choice for applications that require low to medium cooling demands. We design, design, and test these cooling systems in our factory in China. Therefore, we provide you with a ready-to-install modular air chiller, which reduces initial installation costs and eliminates expenses associated with cooling tower installation.
Our air-cooled modular chillers offer high scalability for dynamic cooling requirements in HVAC systems, plastic industries, heat pump cooling, or skating rinks. You can combine 9 or more chiller modules for a cooling capacity up to 480kW. This gives you the flexibility to expand or reduce the number of chillers based on your cooling requirements.
When it comes to technology, ChillerOne air-cooled modular chillers feature the latest technologies to maximize cooling effect, reduce operating costs, and noise pollution.
For example, we use eco-friendly refrigerants to reduce pollution. The dual circuit brazed plate heat exchanger guarantees high energy efficiency and maximum performance in both full load and part-load.
At the same time, our air-cooled modular chiller’s fan blades work in fluid dynamic simulation and match the motor to reduce noise. This is also alongside acoustic hoods and sound-sensitive cabinets to reduce noise, thereby lowering noise pollution.
Furthermore, these chillers are also popular for their high redundancy. With a fault in one chiller, you will simply isolate it and let the other continue with the cooling process, thereby ensuring your 100% uptime.
More importantly, an advanced microprocessor helps to monitor every air-cooled modular chiller to optimize the chilling conditions.
Therefore, when you choose ChillerOne, you are partnering with a chiller manufacturer who guarantees quality and compliance with relevant standards like ASHRAE 90.1 and UL 60335. Upgrade your cooling system today, with ChillerOne modular air chillers – Get a quote now.
Featuring a semi-enclosed twin-screw compressor, it operates on 3-phase 220V/380V/415V power, and provides a cooling capacity of 140-375 tons. It offers optional overseas technical support, all housed in a 4978x2260x2375 mm structure.
Delivers efficient 70-164 kW cooling and 75-180 kW heating performance, designed with DC motor fans, a finned-tube air-side heat exchanger. It supports 380-415V/3Ph/50Hz power and uses R32 refrigerants.
Delivers a strong 244.2 kW cooling capacity with a 65.3 kW compressor, engineered for a stable performance across a 0-35°C operating range. This unit runs on a 380V 50Hz three-phase supply, with a max running current of 121.4A.
Offers a versatile power option from 1.27 kW to 9.9 kW and compatibility with multiple refrigerants. This unit supports multiple power supplies, includes a centrifugal pump, and provides cooling capacities from 2,528 to 24,089 Kcal/h.
Delivering stable performances across a wide -20 to 48 working range, it ensured reliable temperature control with both 71-141 kW heating and 65-130 kW cooling capacities.
This unit supports 380V/3N/50/60Hz power supply and features a modular design for flexible installation. Equipped with refrigerant, brushless fan motors, and using R410A refrigerant.
Supporting flexible voltage options and using environmentally friendly refrigerants, it delivers reliable cooling and heating with precise temperature control.
Built with galvanized steel, hermetic scroll compressor, high-efficiency finned air-side and shell-and-tube water-side heat exchangers, and low-noise axial fans, it delivers energy-saving performance.
Reliable Certification
All Air Cooled Modular Chillers pass rigorous inspections and hold full certifications for reliable operation.
- Specification
- Video
- Successful Application Examples
| Model | 35×1 | 35×2 | 35×3 | 35×4 | 35×5 | 35×6 | 35×7 | 35×8 | |
| Cooling capacity * | kW | 35 | 70 | 105 | 140 | 175 | 210 | 245 | 280 |
| Heating capacity** | kW | 40 | 80 | 120 | 160 | 200 | 240 | 280 | 320 |
| Power supply | / | 380V/3Ph/50Hz | |||||||
| Compressor | |||||||||
| Qty/refrigerant circuit | Nr. | 1/1 | 2/2 | 3/3 | 4/4 | 5/5 | 6/6 | 7/7 | 8/8 |
| Cooling power input* | kW | 10.4×1 | 10.4×2 | 10.4×3 | 10.4×4 | 10.4×5 | 100×6 | 10.4×7 | 10.4×8 |
| Heating power input** | kW | 10.1×1 | 10.1×2 | 10.1×3 | 10.1×4 | 10.1×5 | 10.1×6 | 10.1×7 | 10.1×8 |
| Max. power input | kW | 19.96×1 | 19.96×2 | 19.96×3 | 19.96×4 | 19.96×5 | 19.96×6 | 19.96×7 | 19.96×8 |
| Max. input current | A x nº | 26×1 | 26×2 | 26×3 | 26×4 | 26×5 | 26×6 | 26×7 | 26×8 |
| Max. starting current **** | A | 71×1 | 71×2 | 71×3 | 71×4 | 71×5 | 71×6 | 71×7 | 71×8 |
| Energy adjustment | % | 0-50-100 (Single unit) | |||||||
| Axial fan | |||||||||
| Fan Qty | Nr. | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 |
| Air flow | m3/h | 14600 | 29200 | 43800 | 58400 | 73000 | 87600 | 102200 | 116800 |
| Evaporator | |||||||||
| Type | Shell & tube heat exchanger | ||||||||
| Water flow rate | m3/h | 6 | 12 | 18 | 24 | 30 | 36 | 42 | 48 |
| Water side pressure drop*** | kPa | <<<- – – | 42 | – – ->>> | |||||
| Water connection size | DN | 40 | |||||||
| Dimensions | |||||||||
| Length | mm | 1600 (Single unit) | |||||||
| Width | mm | 800 (Single unit) | |||||||
| Height | mm | 1790 | |||||||
| 33 (Single unit) | |||||||||
| Net weight | kg | 410×1 | 410×2 | 410×3 | 410×4 | 410×5 | 410×6 | 410×7 | 410×8 |
| Noise level**** | dB(A) | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 |
| * Ambient temperature 35ºC; evaporator water in/out 12/7 ºC; ** Ambient temperature DB 7 ºC, WB 6 ºC; condenser water in/out temperature 40/45 ºC; *** In the nominal water flow condition the pressure drop is between this range. **** Sound pressuremeasured at a distance of 1 m and a height of 1.5 m above the ground in a dear field. | |||||||||
| Model | 60×1 | 60×2 | 60×3 | 60×4 | 60×5 | 60×6 | 60×7 | 60×8 | |
| Cooling capacity * | kW | 65 | 130 | 195 | 260 | 325 | 390 | 455 | 520 |
| Heating capacity** | kW | 68 | 136 | 204 | 272 | 340 | 408 | 476 | 544 |
| Power supply | / | 380-460V/3PH /50-60Hz | |||||||
| Compressor | |||||||||
| Qty/refrigerant circuit | Nr. | 1/1 | 2/2 | 3/3 | 4/4 | 5/5 | 6/6 | 7/7 | 8/8 |
| Cooling power input* | kW | 10.4×2 | 10.4×4 | 10.4×6 | 10.4×8 | 10.4×10 | 100×12 | 10.4×14 | 10.4×16 |
| Heating power input** | kW | 10.1×2 | 10.1×4 | 10.1×6 | 10.1×8 | 10.1×10 | 10.1×12 | 10.1×14 | 10.1×16 |
| Max. power input | kW | 39.92×1 | 39.92×2 | 39.92×3 | 39.92×4 | 39.92×5 | 39.92×6 | 39.92×7 | 39.92×8 |
| Max. input current | A x nº | 52×1 | 52×2 | 52×3 | 52×4 | 52×5 | 52×6 | 52×7 | 52×8 |
| Max. starting current **** | A | 142×1 | 142×2 | 142×3 | 142×4 | 142×5 | 142×6 | 142×7 | 142×8 |
| Energy adjustment | % | 0-50-100 (Single unit) | |||||||
| Axial fan | |||||||||
| Fan Qty | Nr. | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 |
| Air flow | m3/h | 29200 | 58400 | 87600 | 116800 | 146000 | 175200 | 204400 | 233600 |
| Evaporator | |||||||||
| Type | Tube in tube heat exchanger | ||||||||
| Water flow rate | m3/h | 11.2 | 22.4 | 33.6 | 44.8 | 56 | 67.2 | 78.4 | 89.6 |
| Water side pressure drop*** | kPa | <<<- – – | 46 | – – ->>> | |||||
| Water connection size | DN | 50 | |||||||
| Dimensions | |||||||||
| Length | mm | 2000 (Single unit) | |||||||
| Width | mm | 1060 (Single unit) | |||||||
| Height | mm | 1957 (Single unit) | |||||||
| Net weight | kg | 630×1 | 630×2 | 630×3 | 630×4 | 630×5 | 630×6 | 630×7 | 630×8 |
| Noise level**** | dB(A) | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 |
| * Ambient temperature 35ºC; evaporator water in/out 12/7 ºC; ** Ambient temperature DB 7 ºC, WB 6 ºC; condenser water in/out temperature 40/45 ºC; *** In the nominal water flow condition the pressure drop is between this range. **** Sound pressure measured at a distance of 1 m and a height of 1.5 m above the ground in a dear field | |||||||||
Installation of Commercial Office Building Roofs in the United States
The original mechanical room space of a certain commercial office building in the United States has been occupied, and the new central cooling system cannot be placed indoors. Chillerone provided a 90-ton air-cooled modular chiller system, consisting of 3 30-ton modular air-cooled chillers, which were installed on the roof of the building. Each module can be independently lifted into position without the need for expansion of the machine room. After adopting the air-cooled modular chiller system in this project, the indoor space remained unchanged, the roof layout was compact, and the renovation cycle was significantly shortened. The client believes that this solution takes into account both installation convenience and future expansion.
High-Temperature Cooling in the Shopping Center of the United Arab Emirates
A certain shopping center in the United Arab Emirates is located in a high-temperature and dry area. The design environmental temperature in summer reaches 45–48℃, and the project does not want to install cooling towers. Chillerone provides a 180-ton air-cooled heat pump chiller system, consisting of 6 30-ton air-cooled modular chillers. The condensation heat is directly discharged to the outdoor air. This modular chiller plant can operate in groups, and only the required modules are enabled during partial-load conditions to avoid inefficient operation of a single large machine. The customer stated that the system maintains stable cooling under high temperatures and does not require a cooling water system.
Load Diversity in Thai University Campuses
The campus of a certain university in Thailand consists of teaching buildings, laboratories, and administrative buildings. Each building has different usage times, resulting in significant variations in cooling loads. Chillerone provided a 120-ton air-cooled modular chiller system, consisting of 4 30-ton modular chillers. The control system can activate corresponding modules based on the occupancy of different buildings. This air-cooled condensing unit solution does not require a cooling tower and is suitable for the decentralized layout of the campus. The client reported that after the modular implementation, during low-load periods, the entire machine does not run, and operation management becomes more flexible.
Continuous Maintenance for the Pharmaceutical Warehouse in the Netherlands
A pharmaceutical warehouse in the Netherlands requires continuous cooling 24 hours a day, and daily maintenance must not cause the entire system to shut down. Chillerone provided a 150-ton air-cooled modular chiller system consisting of five 30-ton modules. With a normal cooling load of approximately 120 tons, the system was designed for N+1 redundancy, allowing the remaining four modules to meet the design load when one module is isolated for maintenance. This modular air-cooled chiller solution meets the temperature control requirements for the warehouse. The customer believes that its reliability and maintainability are superior to a single large unit.
See the Air Cooled Modular Chiller in Action
What is The Air Cooled Modular Chiller?
The air cooled modular chiller directly discharges the system heat into the air through a fan to complete the refrigeration cycle, without the need for additional cooling towers or cooling water systems.
This entire machine is composed of many independent module units. You can flexibly combine and expand them according to your actual cooling capacity requirements to achieve multi-level configuration from small loads to large central air conditioning systems.
Advantages of The Air Cooled Modular Chiller
Modular Design
Whether it is a low-load system in the early stage or capacity expansion in the later stage, its modular design enables you to achieve linear capacity expansion by adding modules without replacing the host system. This significantly reduces your investment cost.
Efficient Operation
Each module has an independent refrigeration circuit and electrical control unit. So when one module needs maintenance, the rest can continue to run. This partial redundancy structure effectively decreases your system downtime and keeps the refrigeration system continuously and stably outputs cooling capacity to satisfy the high reliability requirements under continuous operation conditions.
Easy to Install
Compared with water-cooled chillers, the air cooled chillers have no requirement for cooling towers, cooling water pumps or matching pipelines. Just complete the basic electrical wiring and pipeline connection to put the machine into use, which greatly simplifies your installation process and reduces the investment in supporting equipment.
Compact Structure
The equipment can be installed in either wall-mounted or floor-mounted options based on on-site conditions. Thanks to its flexible layout and a small footprint, it has become an ideal cooling solution for high-rise buildings, old renovation projects or places with limited space.
Adapt to Various Environment
Air cooled chillers can operate stably under different climatic conditions and are particularly suitable for areas with scarce water resources, dry climates or where it is inconvenient to build cooling towers. It can provide a good cooling effect during the hot summer as well.
Low operating cost
Because no cooling water system is required, this machine does not need to clean the cooling tower, treat water quality or carry out anti-scaling maintenance. This offers you lower daily maintenance investment.
And its modular structure also makes it easier and faster to replace unit components, reducing maintenance time.
Environmental protection
The air cooled modular chiller adopts high-efficiency compressors and environmentally friendly refrigerants, which meets energy-saving standards and also reduces carbon emissions and environmental burdens.
Working Principle of Air Cooled Modular Chillers
Single-Module Cycle
- Compression: The compressor compresses low-pressure and low-temperature refrigerants drawn from the evaporator into high-pressure, high-temperature ones.
- Condensation: The high temperature and pressure refrigerant enters the condenser. At this time, the fan forces airflow to take over the condenser’s heat exchange tubes and removes heat from the refrigerant, which makes the refrigerant condenses into a high-pressure liquid. It releases absorbed heat and undergoes a phase change from gas to liquid.
- Expansion: After condensation, the expansion valve controls the high-pressure liquid refrigerant flow rate. It can rapidly decrease pressure and temperature and transform the refrigerant into a low temperature and pressure liquid.
- Evaporation: The low temperature and pressure refrigerant enters the evaporator, TO exchange heat with circulating water. After absorbing heat from the water, it vaporizes into low-pressure vapor to cool the water. And then, the refrigerant is then re-drawn into the compressor to begin the next cycle.
Multi-Module Coordination
In multi-module systems, the control system continuously monitors return water temperature, system load, and operational status in real time. It automatically adjusts the number of active modules based on cooling demand like activating additional modules when load increases.
Furthermore, the control system automatically balances running time across modules to avoid overwork in individual units, which can extend your equipment lifespan.
Types of Air Cooled Modular Chillers
Scroll Air Cooled Modular Chiller
The scroll air cooled modular chiller adopts high-efficiency scroll compressors. It features a compact structure, minimal vibration, and low operating noise (less than 75 dB) so that this equipment is particularly suitable for commercial buildings, small factories, hotels, and office complexes requiring quiet operation. And its modules can be equipped with electronic expansion valves and intelligent control systems for automatic throttling and capacity regulation, with single-module cooling capacities ranging from 5–30 RT.
You can flexibly parallel many modules to achieve multi-stage capacity output based on project cooling demands.
Screw Air Cooled Modular Chiller
The screw air cooled modular chiller takes semi-hermetic screw compressors as the core. Due to no internal wear parts, the machine enables continuous operation, ideal for high-load, continuous industrial and commercial applications. Covering a cooling capacity range of 20–450 RT, they meet diverse cooling demands for medium to large buildings and process cooling.
In addition, some models offer optional variable frequency drive systems that automatically adjust compressor speed based on actual load, which can optimize energy consumption and reduce your electricity costs.
Single-Unit Air Cooled Modular Chillers
Single-unit modular chillers integrate 1 or 2 refrigeration modules within a single rack, offering a compact design with total cooling capacities ranging from 5–60 RT. Refrigeration piping, electrical wiring, and performance commissioning are completed at the factory, enabling you to realize on-site installation and operation. Its installation usually takes only 1–2 days, significantly reducing construction time and commissioning costs.
For fast installation or limited space, single-unit modular chillers are the ideal choice for you.
Multi-Unit Parallel Air Cooled Modular Chillers
Multi-unit parallel modular chillers consist of many standard module units (typically 1–10 units), achieving flexible capacity expansion and phased construction. The intelligent controller automatically allocates operating modules based on real-time system load to realize “on-demand cooling” and provide you high energy efficiency across varying load stages.
This architecture offers exceptional system redundancy and reliability, highly suitable for scenarios requiring 24/7 continuous operation.
Parts of the Air Cooled Modular Chiller
Compressor
The compressor serves as the core of the entire chiller system. It drives the circulation of refrigerant throughout the system, Common types include screw, scroll, reciprocating, rotary, and centrifugal compressors. It offers you high energy efficiency and reliability, capable of stable operation with a service life of 100,000 hours.
You should select the appropriate compressor type and quantity according to project scale and load characteristics.
Condenser
The condenser efficiently dissipates heat from the refrigerant into the surrounding air. And its structure typically is made of copper tubes and aluminum fins, with enhanced heat transfer design to maximize thermal efficiency. Fins often feature anti-corrosion coatings to keep its high heat exchange performance while extending its working time. You can select various fin arrangements such as V-shaped or parallel according to installation space requirements.
Fan
The fan provides forced air convection for the condenser and is a key component to ensure the efficiency of heat exchange. Industrial-grade air-cooled modular coolers typically employ high static pressure and low-noise axial flow fans.
Evaporator
The evaporator is the core component for transferring cooling capacity. It enables the refrigerant to absorb heat from water and evaporate, thus completing the refrigeration cycle.
Common configurations include shell and tube type, plate type and fin type. You can choose the appropriate evaporator as needed.
Expansion Valve
The expansion valve regulates refrigerant flow and pressure. It automatically adjusts its opening based on real-time load to maintain the pressure differential between the condenser and evaporator, ensuring optimal throttling, pressure reduction, and vaporization before refrigerant enters the evaporator.
If it is multi-module systems, electronic expansion valves are recommended for you to enable more precise load response and higher energy efficiency.
Control System
The machine utilizes an advanced PLC control system that monitors temperature and pressure in real time, automatically adjusts load and start or stop functions, and it can provide functions like fault alarms and energy efficiency optimization.
How to Select Air Cooled Modular Chiller
Cooling Capacity
Please ensure the unit’s total cooling capacity matches your project’s design load.
It is important you should reserve 10–15% cooling capacity after calculating the total cold load to accommodate high temperatures or unexpected conditions.
Operating Conditions
When you select unit models and quantities, you also need to consider the ambient temperature, humidity, and seasonal variations at the project location.
For regions with high summer temperatures, configuring high-efficiency condensers or enhanced air-cooling systems is a better choice for you to maintain rated output performance.
Refrigerant Type
Different application environments have specific refrigerant requirements.
For example, if environmentally friendly refrigerants are needed, it is recommended to choose low-GWP refrigerants like R410A or R32.
Energy Consumption
Coefficient of Performance (COP) and Energy Efficiency Ratio (EER) are key points to evaluate chiller efficiency. Higher values means stronger cooling capacity.
To reduce power consumption and lifecycle operating costs, you may prioritize air-cooled chillers with high EER or COP ratings effectively.
Air Cooled Modular Chiller Professional Supplier
Whether for new projects or expanding existing systems, air cooled modular chillers show flexible cooling capacity configuration by modular design and ensure high energy efficiency and stable overall system operation. This machine can offer you an efficient and reliable cooling solution.
If you need more technical details or selection guidance on air-cooled modular chillers, please feel free to contact us anytime. We provide 24/7 professional technical consultation and can assist with system testing, parameter tuning, and on-site installation guidance, which ensures
optimal equipment performance upon commissioning.
Air cooled modular chillers are widely used in various HVAC air conditioning systems, process cooling systems, and industrial temperature control systems.
Yes, the equipment operates reliably within an ambient temperature range of -15°C to +48°C.
In high-temperature conditions, refrigeration efficiency is automatically optimized via electronic expansion valves and condensing pressure regulation. For low-temperature operation, the unit’s cold-start components and evaporator freeze protection program ensure your machine’s safe performance in winter.
No. Each module of the air-cooled modular chiller is equipped with an independent refrigeration circuit, compressor and control system, achieving fully autonomous operation. When one of the modules malfunctions or is under maintenance, the remaining modules automatically take over the heat dissipation output. The system controller reallocates the load in real time and dynamically, providing a good total cooling capacity and a stable outlet water temperature.
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