DUNHAM-BUSH

DUNHAM-BUSH

Variable Speed Air Cooled Screw Chillers (AVX-B Series)

Cooling capacity range from 115~470 TR (406~1656 kW)

  • Using environmentally sound R134a refrigerant


  • Evaporator with integral finned copper tuber to maximize heat transfer area and maintaining high efficiency


  • Hermetic design compressor eliminates casing leakage, no periodic compressor tear down and overhaul. VFD driven compressor delivers outstanding efficiency and reliability 


  • Economizer circuit consists of plate type heat exchanger, expansion valve and solenoid valve. Energy saving through economizer cycle and advance controller staging

Air Cooled Scroll Chillers (ACDS Series)

Cooling capacity from 10~180 TR (35~633 kW) for 50 Hz & 60 Hz units


  • Using environmentally sound HFC-410A refrigerant


  • Reliable Tandem or Trio scroll compressors with high EER


  • Motor protection via embedded PTC sensors, protects motor overheating caused by overload, low refrigerant flow and incorrect motor rotation


  • Compact and high efficiency brazed plate heat exchanger evaporator, allowing lower pressure drop on water side

Helios Air Cooled Screw Chiller (ACHX-A)

Cooling capacity from 80~282 TR (281~992 kW)

  • Multiple compressors models with independent refrigerant system per compressor provide redundancy and superior part load efficiency


  • Operates with environment friendly refrigerant R134a with zero ODP


  • Economizer consists of plate type heat exchanger, expansion valve and solenoid valve. Increased cooling capacity by increasing sub-cooling and improve efficiency

Water Cooled Scrolled Chillers (WCS Series)

Cooling capacity from 12 - 62 TR (42 - 218 kW)

  • Scroll hermetic type compressor with EER, with thermostat fitted to prevent thermal overload


  • Scroll compressor delivers higher efficiency, fewer required components increases reliability and quieter operation


  • Evaporator with high efficiency inner-fin tubes design for compactness and weight reduction

Water Cooled Screw Chillers (WCFX-E Series)

Cooling Capacity from 60 - 1000 TR (211 - 3517 kW)

  • Economizer increased cooling capacity by means of the sub-cooling circuit, or 2-stage refrigerant expansion


  • Vertical Screw Compressors design guarantees rotor lubrication which rotor bearings are submerged in oil whenever compressor is in operation


  • Unique Patented Twin Screw compressor technology offers efficiency improvement, high reliability and lower sound level


Variable Speed Water Cooled Screw Chiller (WCFX-V Series)

Cooling Capacity from 133~747 TR (467 - 2627 kW)

  • Unique Patented Twin Screw compressor technology offers efficiency improvement, high reliability and lower sound level


  • Economizer increased cooling capacity by means of the sub-cooling circuit, refrigerant is sub-cooled at economizer before entering evaporator


  • Flooded type evaporator with shell-and-tube type heat exchanger


Centrifugal Chiller (DCLC Series, DCLCD, DCLCT Series)

Cooling Capacity from 300~4000 TR (1055 ~14068 kW)

  • Semi-hermetic compressor and motor are direct gear driven for reliable operation


  • Dual lock design on evaporator vessel's tube sheets ensure better sealing and minimizes the possibility of leaks between water and refrigerant system


  • Copper tubes with enhanced profile and grooves for best heat transfer efficiency


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