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Air-Cooled Low-Temp Chiller

(Scroll/Piston)

Industrial air-cooled chiller with scroll/piston compressor for low temperature cooling ranging from -30° to +5°C

Air-Cooled Low-Temp Chiller (Scroll/Piston)
  • Refrigerant: R22/R404A/R507A
  • Power source: 3Ph 380V~415V 50Hz/60Hz
  • Compressor: hermetic scroll compressor, semi-hermetic piston compressor
  • Chilled water temperature range: -30°C to +5°C (adjustable temperature)
  • Min. dimensions (L×W×H): 1030×560×1270mm
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Air-cooled low-temperature chillers in scroll or piston configurations are designed for processes where stable cooling at sub-zero temperatures is required. They can handle operating ranges from -30 °C to +5 °C, making them a dependable option for facilities that can’t rely on water-cooled systems. Depending on capacity needs and process requirements, units can be equipped with Danfoss, Bitzer, or Copeland scroll compressors, or Bitzer semi-hermetic piston models. Offering several compressor configurations means each chiller model can be selected to fit the cooling load, efficiency targets, and site conditions more closely. Our air-cooled low-temp chillers are widely used various industries, including pharmaceuticals, chemical production, biotechnology, ozone processing, and hydrogen energy, among other sectos that require stable temperatures. These air-cooled chillers have a design that reduces infrastructure needs, which can lower setup and maintenance costs.

Air-Cooled Low-Temp Chiller (Scroll/Piston)
Air-Cooled Low-Temp Chiller (Scroll/Piston)
Air-Cooled Low-Temp Chiller (Scroll/Piston)
Air-Cooled Low-Temp Chiller (Scroll/Piston)
Air-Cooled Low-Temp Chiller (Scroll/Piston)
Technical Specifications
Model (HTLT-***) 3A 5A 6A 8A 10AD 12AD 15AD 20AD 25AD 30AD 40AD
Nominal cooling capacity -10℃ kW 3.52 6.27 7.53 9.44 12.54 15.06 18.88 26.02 30.74 40.42 44.04
-20℃ 1.75 3.5 3.77 5.55 7 7.54 9.3 13.3 16.56 18.04 25.6
-30℃ 0.86 1.82 2.04 2.98 3.64 4.08 4.92 6.54 8.44 8.74 12.72
-35℃ 0.54 1.21 1.43 2.08 2.42 2.86 3.38 4.24 5.64 5.58 8.16
Evaporator Chilled water volume -10℃ m³/h 0.6 1.07 1.29 1.62 2.15 2.59 3.24 4.47 5.28 6.95 7.57
-20℃ 0.3 0.6 0.64 0.95 1.2 1.29 1.59 2.28 2.84 3.10 4.4
-30℃ 0.14 0.31 0.35 0.51 0.62 0.7 0.84 1.12 1.45 1.5 2.18
-35℃ 0.09 0.2 0.24 0.35 0.41 0.49 0.58 0.72 0.97 0.95 1.4
Type Shell and tube evaporator/SS plate heat exchanger
Pipe connection inch 1 1 1 1-1/2 2 2 2 2 2 3 3
Input power kW 2.79 4.71 5.82 7.04 9.32 11.54 14.28 18.34 20.92 27.42 30.64
Power source 3Ph 380V~415V 50Hz/60Hz
Refrigerant Type R22/R404A/R507A
Control Thermostatic expansion valve
Compressor Type Hermetic scroll compressor, semi-hermetic piston compressor
Motor Power kW 2.42 4.16 5.27 6.49 4.16*2 5.27*2 6.49*2 8.37*2 9.66*2 12.21*2 13.82*2
Condenser Type Air-cooled type high efficiency finned copper tube
Pump Power kW 0.37 0.55 0.55 0.55 1 1 1.3 1.6 1.6 3 3
Head m 20 20 20 20 20 20 20 20 20 20 20
Safety devices
  • Compressor inner protection
  • Overcurrent protection
  • High/low pressure protection
  • Over temperature protection
  • Flow rate protection
  • Phase sequence/phase missing protection
  • Low level coolant protection
  • Anti-freezing protection
  • Exhaust overheat protection
Dimensions Length mm 1030 1180 1180 1430 1630 1630 1910 2070 2070 2050 2330
Width mm 560 580 580 700 760 760 850 950 950 1500 1700
Height mm 1270 1305 1305 1470 1680 1680 1840 1980 1980 1890 1965
Net weight kg 135 175 210 310 450 530 750 835 920 1080 1125
The specifications mentioned above are based on the following design conditions:
  • Condensing temperature: 48 °C
  • Volume fraction of glycol-water solution 47.8%
  • We reserve the right to modify the specifications without further notice.
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Manufacturers in the pharmaceutical and biotechnology sectors typically require precise temperature control and consistent cooling performance. Water-cooled chillers, especially scroll or screw models, are suitable for these applications. They offer stable operation and high accuracy, helping ensure reliable production conditions for sensitive materials.

Food and beverage producers generally require higher cooling capacity to preserve freshness during large-scale production. In these cases, water-cooled scroll or screw chillers are usually more appropriate than air-cooled models, as they offer greater efficiency and better support for continuous, high-volume operations.

For companies with tighter budgets and limited maintenance capabilities, air-cooled low-temperature chillers offer a practical and efficient solution. These systems are compact, easier to install, and require minimal maintenance, which is ideal for operations that need reliable cooling without complex infrastructure.