DUNHAM-BUSH
DUNHAM-BUSH
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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