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Self-contained & Efficient Heat Rejection
- Self-contained system, thus there is no need for cooling towers
- Engineered for low to medium cooling: 50 to 550 tons
- Temperature control: -25℃ to 35℃
- Few moving parts, thus less wear & easy maintenance
- Semi-hermetic compressor from Hanbell and Bitzer
Your No.1 Air Cooled Screw Chiller Manufacturing Factory in China Over 20 Years
If you are looking for an air-cooled screw chiller for low to medium cooling capacity, then choose ChillerOne’s new generation of air chillers. Our chillers guarantee low initial setup costs since they don’t have cooling towers, water treatment systems, and condenser pumps like water-cooled screw chillers.
ChillerOne air-cooled screw chillers use ambient air and fans to reject unwanted heat from your systems instead of a cooling tower.
More importantly, these chillers have a screw compressor, which helps our chillers achieve higher EER, ranging from 2.8 to 3.8, depending on your cooling requirements. This translates to over 35% energy efficiency even at part-load.
Additionally, the sliding valves in our chillers control the compressor working capacity. It matches the compressor to cooling demand, which translates to energy and cost savings. With the fully integrated control system, it has 4-step energy control from 25%, 50%, 75% to 100%.
For longevity, screw compressors in our air-cooled chillers can withstand liquid refrigerant flooding, while the few moving parts guarantee less wear. This unique design reduces the maintenance costs.
At the same time, the 2 to 3 screw compressors will guarantee 100% uptime, while ensuring higher redundancy for your process.
Whether you are looking for an air-cooled glycol screw chiller or custom designs, ChillerOne engineers will help you to size a unit that matches your specific requirements – contact us now for free consultations.
Designed to handle 90-330 kW of cooling capacity, it comes with a robust twin-screw compressor, pump, and condenser. You’ll get precise temperature control with a 7°C outlet water.
With a 45.8 kW power capacity, it features a semi-hermetic screw compressor, tube-in-shell evaporator, and finned copper condenser.
Built with a 433kW power and a chilled water flow of 79m³/h. Designed with flexible compressor volume control, a wide working temperature range of 5-30°C, and a high safety level.
With a refrigerating capacity of 243-783kW and heating capacity up to 782kW, it offers customizable voltage options.
A wide cooling capacity range of 1-4000kW and a working temperature from –35°C to 50°C. Designed for flexible voltage options and plug compatibility.
Designed with efficient evaporative cooling, low-pressure fins, and floor-standing installation. Featuring rotary compressor, PLC, pump, and engine with a cooling capacity of 80-300kW.
Features a semi-enclosed twin-screw horizontal compressor, shell-and-tube falling film evaporator, and robust engine and pump components with a cooling capacity of 140-375 tons.
Built with a high productivity, remote control options, and versatile functions including cooling, heating, year-round water temperature management, and flexible customization.
Reliable Certification
Rigorously inspected and certified, our Air Cooled Screw Chiller adheres to worldwide industry norms.
- Data Sheet
- Video
- Main Parts
- Successful Application Examples
| Screw Air Chiller Technical Specifications | |||||||||||||||
| Model Items | TPAS- 80ASH | TPAS- 110ASH | TPAS- 140ASH | TPAS- 160ASH | TPAS- 190ASH | TPAS- 210ASH | TPAS- 250ASH | TPAS- 290ASH | TPAS- 310ASH | TPAS- 340ASH | TPAS- 400ASH | TPAS- 430ASH | |||
| Cooling capacity | kcal/h | 68800 | 94600 | 122980 | 135020 | 164260 | 180600 | 212420 | 245100 | 266600 | 292400 | 348300 | 369800 | ||
| KW | 80 | 110 | 143 | 157 | 191 | 210 | 247 | 285 | 310 | 340 | 405 | 430 | |||
| Input power | KW | 32.5 | 43.6 | 54.7 | 59.7 | 73.6 | 79.6 | 88.2 | 101.2 | 112.8 | 123.8 | 145 | 155 | ||
| Max Current | A | 57 | 75 | 95 | 103 | 125 | 135 | 151 | 173 | 191 | 211 | 246 | 263 | ||
| Power source | 3PH~380V/415V/480V~50HZ/60HZ(3PH~200V/220V 50HZ/60HZ) | ||||||||||||||
| Refrigerant | Type | R22(R134a/R407c/R404A) | |||||||||||||
| Charge | kg | 21 | 28 | 35 | 42 | 49 | 56 | 63 | 70 | 77 | 84 | 98 | 112 | ||
| Control | Thermostatic expansion valve | ||||||||||||||
| Compressor | Type | Semi-hermetic screw | |||||||||||||
| Power | KW | 30 | 40 | 50 | 55 | 67 | 73 | 82 | 95 | 104 | 115 | 134 | 142 | ||
| Start mode | Y-△ | ||||||||||||||
| Capacity control | % | 0-33-66-100 | 0-25-50-75-100 | ||||||||||||
| Evaporator | Type | Shell and tube (SSplate heat exchanger) | |||||||||||||
| Chilled water | m³h | 13.8 | 18.9 | 24.6 | 27.0 | 32.8 | 36.1 | 42.5 | 49.0 | 53.3 | 58.4 | 70.0 | 74.0 | ||
| Water pressure | KPa | 32 | 32 | 35 | 38 | 42 | 42 | 45 | 43 | 43 | 43 | 41 | 43 | ||
| Pipe connection | Inch | 3″ | 3″ | 3″ | 4″ | 4″ | 4″ | 4″ | 4” | 5″ | 5″ | 6″ | 6″ | ||
| Condenser | Type | Air cooled type highefficiency finned cooper tube | |||||||||||||
| Fan | Type | m³h | Big volume &low noise axil fan | ||||||||||||
| Power | KW | 0.42×6 | 0.6×6 | 0.78×6 | 0.78×6 | 1.1×6 | 1.1×6 | 0.78×8 | 0.78×8 | 1.1×8 | 1.1×8 | 1.1×10 | 1.1×12 | ||
| Air volume | m³/h | 30000 | 40000 | 50000 | 60000 | 70000 | 80000 | 90000 | 100000 | 110000 | 116000 | 145000 | 165000 | ||
| Safety protection devices | Inner thermostat for compressor motor,unit overload relay,high and low pressure switch,freeze protection thermostat, reverse phase protection relay,discharge gas thermostat,flow switch | ||||||||||||||
| Dimension | Length | mm | 2200 | 2350 | 2600 | 2600 | 2650 | 2650 | 3400 | 3400 | 3800 | 3800 | 4800 | 5800 | |
| Width | mm | 1150 | 1350 | 1500 | 1500 | 1900 | 1900 | 1700 | 1700 | 1900 | 1900 | 1900 | 1900 | ||
| Height | mm | 1980 | 2000 | 2100 | 2100 | 2200 | 2200 | 2200 | 2200 | 2200 | 2200 | 2200 | 2200 | ||
| Net weight | kg | 1100 | 1300 | 1600 | 1900 | 2200 | 2350 | 2550 | 2800 | 2850 | 2950 | 3200 | 3550 | ||
| Running weight | kg | 1300 | 1500 | 1840 | 2200 | 2530 | 2700 | 2950 | 3250 | 3350 | 3560 | 3650 | 3950 | ||
| The above specifications are according to the following design conditions: 1,Chilled water inlet/outlet temperature 12℃/7℃. 2,Cooling air inlet/outlet temperature 30℃/38℃. We reserve the right to modify the specifications without further notice. | |||||||||||||||
Dubai Shopping Center, UAE
The summer ambient temperature at a shopping center in Dubai reached 45℃, requiring 180 tons of cooling capacity. The project utilized 2 90-ton air-cooled screw chillers without the need for a cooling tower. The client compared air-cooled chillers with water-cooled chillers and ultimately chose the air-cooled screw solution due to water shortage. The unit was equipped with a smart chiller control system, automatically adjusting load based on demand and operating stably for continuous operation, meeting the air conditioning requirements of the shopping center.
Texas Chemical Plant, USA
A chemical plant in Texas required 200 tons of continuous cooling for a reactor vessel, with a summer ambient temperature of 46℃. The project selected 1 200-ton air-cooled screw chiller. The client requested air-cooled chiller diagrams and the working principle of air-cooled screw chillers to understand the continuous compression principle of the screw compressor. After the equipment was put into use, the temperature of the reactor vessel was stable, and the air-cooled solution showed significant advantages in water-scarce areas.
Injection Molding Workshop of a Vietnamese Electronics Factory
A Vietnamese electronics factory’s injection molding workshop required 150 tons of cooling water. After comparing air-cooled chillers with water-cooled chillers, the client chose a 150-ton air-cooled screw chiller due to the absence of a cooling tower in the factory. The client also specifically inquired about the price of air-cooled screw chillers, and we provided detailed quotations and selection explanations. After the equipment was put into operation, the temperature of the injection molds was stable, and the production efficiency of the workshop was improved.
Polish Food Cold Chain Logistics Center
A Polish cold chain logistics center required 120 tons of cooling capacity for warehouse air conditioning and process cooling. The project utilized one 120-ton air-cooled screw chiller, equipped with a smart chiller remote monitoring system. The client optimized the pipeline layout based on the air-cooled chiller diagram. The unit did not require a cooling tower, was easy to install, and was suitable for renovation projects. After one year of operation, the temperature control was stable, and the client planned to continue using the same series of units in the second phase.
See the Air Cooled Screw Chiller in Action
Watch how the air cooled screw chiller delivers stable temperature control, fast cooling response, and reliable performance in real industrial working conditions.
What Is Air Cooled Screw Chiller
Simply put, this is a cooling system that dissipates heat through ambient air, specifically designed to lower the temperature in scenarios that require temperature control.
A chiller discharges the heat from the equipment into the air. The working principle is to absorb heat through circulating water or other fluids, thereby reducing the temperature in the equipment area. It is often applied in industrial production processes, data center cooling, HVAC, and district cooling.
The Composition Structure of The Air-cooled Screw Chiller
Screw compressor
Compared with piston compressors, they have less reciprocating motion losses and are less likely to have problems even after continuous operation for three to five years. For you, it determines the cooling capacity and energy efficiency ratio of the chiller.
Shell and tube evaporator
Heat is absorbed here through circulating water or other liquids, thereby reducing the temperature around your equipment. The production line you are connected to might be constant-temperature processing or reactor cooling. The heat exchange area and material of the evaporator directly affect the effect.
Air-cooled condenser
The air-cooled condenser is responsible for dissipating the heat of the high-temperature and high-pressure refrigerant gas into the air. The environmental temperature and ventilation conditions of your factory should be given priority consideration. The fin spacing should not be too small; otherwise, it is easy to accumulate dust and get clogged. The fan is equipped with a dual-speed motor, which operates at high speed in hot summer and automatically reduces speed in cold winter, ensuring heat dissipation and saving electricity.
throttling device
The selection of expansion valves or capillary tubes directly affects the matching of refrigerant flow. If you are cooling equipment with large load fluctuations, such as injection molding machines that operate intermittently, an electronic expansion valve is more suitable. It can automatically adjust the flow rate according to the real-time temperature to prevent over-cooling or overheating.
electronic control system
Most of the chillers you are using now are equipped with PLC controllers. Check if the panel can display the water temperature, pressure, and operation mode in real time, and whether it has a self-checking function for faults. These can help you quickly identify problems. A good electronic control system can also be linked to your production line. When the equipment stops, the chiller automatically operates at a low load
Air Cooled Screw Chiller Working Principle
It dissipates the heat of the equipment into the air through a closed-loop cycle of refrigeration, compression, heat dissipation, and throttling. Let’s break it down into four steps. After you read this, you’ll be able to match the cooling requirements of your own production line.
Refrigeration
When your industrial equipment is in operation, it will continuously generate heat, and this heat must be removed in a timely manner. The evaporator of the air-cooled screw chiller is specifically designed to solve this problem. When low-temperature water or other liquid refrigerants flow through the evaporator, the heat of the equipment will be transferred through the refrigerant. Finally, the liquid refrigerant absorbs heat and evaporates.
Compression
The gaseous refrigerant comes out carrying heat and must be compressed first before it can continue the cycle. Screw compressors use two helical rotors meshing with each other to squeeze gaseous refrigerants into a high-temperature and high-pressure state. Compared with piston machines, it has less vibration and lower noise. If you are running a production line that operates 24 hours a day without interruption, choosing a screw compressor can help you worry less about malfunctions and shutdowns.
Heat dissipation
- The high-temperature and high-pressure gaseous refrigerant enters the condenser, which is the core of heat dissipation. Air-cooled machines do not require cooling towers. They directly rely on the axial flow fans on the machine body to extract ambient air. The refrigerant flows outside the condenser tubes. The fan blows air through the tubes, blowing away the heat of the refrigerant. The gaseous state gradually liquefies into a medium-temperature and high-pressure liquid.
- If you are in a factory in the north where the temperature is relatively low, the heat dissipation efficiency will be better. In the south, where the temperature is relatively high, attention should be paid to the ventilation of the computer room in summer. Poor air flow can affect the condensation effect, and a wind deflector may need to be added.
Throttling
- The liquefied refrigerant needs to be cooled down first. The expansion valve sprays the medium-temperature and high-pressure liquid refrigerant into a low-temperature and low-pressure mist.
- Adjusting the opening degree of the expansion valve can directly affect the heat exchange efficiency of the evaporator. Some manufacturers have reported that the cooling of the units is slow. In many cases, it is because the expansion valve is not adjusted properly, resulting in excessive or insufficient refrigerant flow.
Core features of an air-cooled screw chiller
Easy to install
The cooling system machine room requires underground pipe laying, machine room construction, and cooling tower air supply. The inlet and return water pipelines of the cold screw machine are directly connected to the equipment, eliminating the need for an additional pump room. Place one in an outdoor open space. A simple foundation for a concrete platform is sufficient.
Highly efficient and energy-saving
The screw compressor is its core. High volumetric efficiency. Equipped with a frequency conversion module is more cost-effective: The workshop has a low demand for cooling at night, and the machine automatically reduces its frequency, saving electricity compared to fixed-frequency machines.
Intelligent control
You don’t have to stay by the machine and keep an eye on it. The PLC control system is equipped with a touch screen, and the temperature, pressure, and running time are updated in real time. What’s more practical is the remote function. Install an APP. Even when on a business trip, you can check the status of the crew, receive a warning, and directly dispatch workers to handle it.
Adapted to the environment
The absence of a cooling tower is the greatest advantage. In water-scarce areas or old factories where there is no space to build machine rooms, it can be simply placed on the roof or in a corner. It can operate stably in an environment ranging from -15℃ to 43℃. No additional heating is required in winter, and there is no need to worry about the unit getting damp during the rainy season. The fuselage is equipped with dust-proof nets and anti-corrosion coatings.
Application fields of the air-cooled screw chiller
Cooling of industrial chemical equipment
If you are engaged in fine chemicals, pharmaceuticals, or coating production, even a slight deviation in temperature control of equipment such as reaction vessels, distillation towers, and heat exchangers in the workshop can, at best, affect the reaction efficiency. The most serious situation is that the equipment fails to dissipate heat in time, resulting in the failure of production raw materials and causing huge losses. However, with our air-cooled screw water-cooled machine, you will have no such concerns at all. It is equipped with an intelligent temperature control module, which continuously supplies low-temperature water to the reaction vessel to ensure the stability of the material reaction.
Commercial central air conditioning cooling
In shopping malls, hotels, or office buildings, the central air conditioning system needs to stably supply chilled water. Air-cooled screw machines do not require the construction of cooling towers and have low noise. Maintenance is also simple. The filter screen can be disassembled and cleaned by yourself, unlike water-cooled machines, which require regular descaling.
The energy efficiency of air-cooled screw chillers actually depends on the configuration. Our products use high-efficiency screw compressors, saving 15% to 20% more electricity than ordinary models. The intelligent temperature control system will adjust the power according to the load of your equipment, maintaining high energy efficiency even at low loads. Heat dissipation relies on air cooling, eliminating the need for additional cooling towers and saving tons he electricity consumption of water pumps. However, pay attention to choosing the right horsepower to match the heat load of your equipment, and the energy-saving effect will be more substantial.
Air-cooled screw chillers do not require the construction of cooling towers, eliminating the need for water tanks and pipelines. They can be used in factories where there is no space or the water supply is tight. The screw compressor operates stably, and the temperature difference for cooling injection molding machines and laser equipment is small. The cleaning of the condenser tower is also relatively simple. Just wipe the filter screen on a daily basis, and the maintenance is half the effort compared to water cooling. If you want to control the initial cost and reduce the trouble in the later stage, but also need to continuously cool multiple industrial devices, this type of model is highly adaptable.
Our batch of industrial equipment cooling air-cooled screw compressors is equipped with high-pressure ratio screw compressors, and the heat exchangers have undergone low-temperature enhanced design. The actual test shows that in an environment of -10℃, continuous operation for 48 hours can cool down the reaction vessel and laser equipment without any problem. The oil circuit circulation and the electronic control system have both undergone anti-freezing tests under low-temperature conditions. If you are doing cooling for fine chemical or electronic workshops, choosing it is stable enough.
The standard distribution heating tape of the unit is used for preheating when the machine is shut down to prevent oil condensation. Remote monitoring for real-time data transmission and abnormal early warning. Free guidance on cleaning the filter screen and changing the low-viscosity refrigeration oil during seasonal changes. We are online 24 hours a day to ensure the stable operation of the equipment if there are any issues.
Maintenance is not troublesome. Clean the filter screen and use a soft brush to sweep the dust every month. Blow the fins of the condenser every quarter to remove accumulated dust. Change the refrigeration oil according to the list every year. Check the oil level and water temperature on a daily basis. If there are any abnormalities, contact us, and our engineers will provide remote guidance. Just a few simple steps, and the machine will run steadily.
