The air-cooled screw type low temperature chiller unit exchanges heat with outdoor air through a finned air cooled condenser (equipped with an axial flow fan and adjustable wind speed). After the refrigerant liquefies, it enters the evaporator through a throttling device to cool the circulating water, without the need for a cooling tower or circulating water pump. Flexible deployment, can be installed on rooftops, outdoor open spaces, etc. without the need for dedicated computer rooms; Climate adaptability: Stable operation in environments ranging from -10℃ to 45℃, suitable for winter and summer scenarios in the north and south. Unique design features: The fan adopts an external rotor axial flow fan (variable frequency), and the outdoor protection has a shell with IP55 protection. It is rain resistant, dustproof, and equipped with a dust net (optional) design.
Item :
HX-FLDProduct name :
Air-Cooled Screw Type ChillerCooling capacity :
50~1500kwRefrigerant :
R22 (R407C) Environmentally FriendlyMOQ :
1 unitApplication :
Chemicals, pharmaceuticals, food processing, plastics processing, etc.Air-Cooled Low-Temperature Screw Chillers
The HX-FLD series air-cooled low-temperature screw chiller is engineered for demanding industrial process cooling. Utilizing a high-efficiency finned condenser paired with variable-frequency axial fans, it facilitates direct and efficient heat exchange with the ambient air. Designed around a dedicated semi-hermetic screw compressor equipped with comprehensive low-temperature protection, this robust system ensures reliable secondary refrigerant output down to -35°C. It serves as the ideal cooling backbone for critical applications in chemical processing, pharmaceuticals, food production, and plastics manufacturing.
The core advantage of the air-cooled low-temperature screw unit system (which can be equipped with an economizer to supplement air and increase enthalpy) is the low temperature characteristic without water source. It is debugged before leaving the factory and can be operated on site by simply connecting to electricity.
Range of refrigerant: Supports solutions of ethylene glycol, propylene glycol, silicone oil, calcium chloride, etc., with a minimum output of -35℃ refrigerant.
And it has the function of resisting harsh environments. The unit can withstand high temperatures such as 50℃ and low temperatures such as -30℃, especially in industrial fields such as chemical, pharmaceutical, food improvement of various low-temperature protection devices.
| Model | HX-30FLD | HX-40FLD | HX-50FLD | HX-60FLD | HX-70FLD | HX-80FLD | HX-90FLD | HX-100FLD | HX-120FLD | HX-130FLD | HX-150FLD | HX-160FLD | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cooling capacity (-20°C) kW | 31.3 | 43.5 | 57 | 61.4 | 76.4 | 82.1 | 97.1 | 111.4 | 122.8 | 133.5 | 162.3 | 169.8 | |
| Cooling capacity (-20°C) Kcal/h | 26918 | 37410 | 49020 | 52804 | 65704 | 70606 | 83506 | 95804 | 105608 | 114810 | 139578 | 146028 | |
| Total power (kW) | 30.7 | 41.3 | 53.5 | 57.9 | 71.1 | 76.4 | 87.5 | 100.4 | 111.1 | 120.6 | 145.8 | 149.6 | |
| Running current (A) | 60 | 82 | 106 | 114 | 142 | 150 | 175 | 200 | 220 | 240 | 290 | 300 | |
| Power supply | 3 Phase 380V 50Hz | ||||||||||||
| Temperature control range (°C) | -20°C - 0°C | ||||||||||||
| Temperature control accuracy (°C) | ±2°C | ||||||||||||
| Refrigerant | Type | R22 (R407C) | |||||||||||
| Filling amount (KG) | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 60 | 66 | 75 | 80 | |
| Way to control | Thermal Balance Expansion Valve | ||||||||||||
| Compressor | Start up | Star-Delta Start | |||||||||||
| Energy regulation (%) | 0%-25%-50%-75%-100% (0%-33%-66%-100%) | ||||||||||||
| Form | Semi-hermetic screw compressor | ||||||||||||
| Power (kW) | 27.4 | 36.9 | 46.9 | 51.3 | 62.3 | 67.6 | 77.6 | 90.5 | 97.9 | 107.4 | 129.3 | 133.1 | |
| Evaporator | Types of | Shell and tube | |||||||||||
| Chilled water (m³/h) | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 60 | 66 | 75 | 80 | |
| Pipe diameter | PT 2-1/2" | PT 3" | PT 4" | PT 5" | |||||||||
| Condenser | Types of | Efficient copper tube plus aluminum foil fin type + external rotor cooling fan | |||||||||||
| Cooling air (m³/h) | 33000 | 44000 | 55000 | 66000 | 77000 | 88000 | 99000 | 110000 | 132000 | 143000 | 165000 | 175000 | |
| Safety Protection | Compressor overheating protection, overcurrent protection, high and low pressure protection, overtemperature protection, flow protection, phase sequence/phase loss protection, exhaust overheating protection, antifreeze protection. | ||||||||||||
| Dimensions | Long (mm) | 2400 | 2000 | 2500 | 2800 | 3200 | 3200 | 3000 | 3000 | 3600 | 3600 | 4200 | 4200 |
| Width (mm) | 1100 | 1560 | 1560 | 1780 | 1800 | 1800 | 2270 | 2270 | 2270 | 2270 | 2270 | 2270 | |
| High (mm) | 1820 | 1820 | 1820 | 1900 | 2100 | 2100 | 2200 | 2200 | 2200 | 2200 | 2200 | 2200 | |
| Unit weight (KG) | 1050 | 1250 | 1360 | 1520 | 1700 | 1800 | 1950 | 2050 | 2200 | 2350 | 2500 | 2700 | |
Water Free Low Temperature RefrigerationDissipates heat via ambient air, achieving stable outputs down to -35°C without complex cooling towers. |
High IntegrationFully pre-commissioned plug-and-play system; requires only basic electrical and fluid connections onsite. |
Fast ResponseDriven by a dedicated low-temperature screw compressor, ensuring quick temperature pull-down for demanding loads. |
Resistance to Harsh EnvironmentsFeatures an IP55-rated casing engineered to withstand harsh ambient conditions from -30°C up to 50°C. |
Flexible DeploymentEliminates the need for dedicated mechanical rooms; easily installed on rooftops or open outdoor spaces. |
Broad Fluid AdaptabilityHighly compatible with various secondary refrigerants including glycol, silicone oil, and calcium chloride solutions. |
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