Air cooled screw chiller are designed to exceed ASHRAE Standard 90.1 requirements. The high efficiency Variable Speed (VFD) compressor, superior evaporator and condenser, Electronic Expansion Valve (EEV) and the intelligent chiller controller ensures the AVX-B performance and stability when operates at both full load and part load conditions.

Maintain air-cooled screw chiller

When the air-cooled screw chiller is affected by moisture, moisture-proof and waterproof measures can be taken for the chiller equipment to avoid major problems affecting the normal progress of industrial production. Specifically, how to "protect" the air-cooled screw chiller in an all-round way:

1. Wipe the condensed water outside the equipment in time

Condensate is generated when the air temperature drops below the dew point temperature, and is generally generated near the condenser and cooling water pipes. In rainy and cloudy days, the air humidity is low, and condensate is easy to be generated, which will cause potential risks to nearby pipelines and lines.

2. Maintain water pump and pipeline interface regularly

The pipes in the water cooling unit are complex, with both refrigerant channels and water circulation channels. Through regular maintenance of external equipment and connections, whether there is leakage and damage is conducive to preventing the leakage of cooling water and causing adverse effects on the equipment.

3. Indoor dehumidification should be done well

When it rains, because of the high humidity of outdoor air, it is not easy to use natural ventilation to remove moisture, and adopt indoor moisture absorption to remove moisture, which is conducive to reducing the humidity in the workshop.

4. The site where the chiller is placed needs to be kept dry

Product Parameter:

Product Feature:

Compressor

1. New generation of Dunham-Bush MSC Vertical Screw Compressors with Unique Patented Twin Screw compressor technology, offers further improved reliability and stability, with lower sound level.

2. Optimized oil management with up to 2 integral oil separators. Multi-layered mesh element effectively separates oil from the gas stream

3. No external oil pump required

4. Patented screw profile design which is specially made for R134a application, to assure operation at highest efficiencies

5. Optimized volume ratio, VI port position and geometry for best efficiency

6. Hermetic design eliminates casing leakage, with no requirement for internal parts service, no periodic compressor tear down and overhaul

7. Direct driven design eliminates gear set; improve efficiency and reliability

8. Discharge service valves is provided to each compressor for the ease of servicing

Why choose us

1.120 Years of Brand History
Dunham-Bush, one of the world's top commercial air-conditioning manufacturers, has long been committed to offering creative solutions for customers' requirements throughout our 120+ year history, in the heating, ventilation, air-conditioning and refrigeration (HVAC/R).

2.Advanced production line
Highest Quality Control Dunham-Bush employs over 2,000 people in 15 regional sales offices and three factories worldwide.

3.Leader in metro station A/C market for 14 years
300 million USD order amount till 2017 Including chillers\AHUs\BAS.

77% market share in metro market Dunham-Bush is taking the No.1 position in this vertical market .

4.Leader in nuclear power plant A/C market for 8 years
10 plant of nuclear power are cooled by Dunham-Bush chillers & AHUs.
37% market share in nuclear power plant market Dunham-Bush is taking the No.1 position in this vertical market .

FAQ:

Q: Can you provide drawing design service?

A: Yes, we have professional HVAC engineering team to design your project and optimize solutions, we can also provide professional HVAC drawings.

Q: What kind of chiller can you provide?

A: All kind chiller we can provide. Including water cooled or air cooled chiller. Compressor type including centrifugal, screw and scroll.

Q: What information customer should provide to select a air cooled screw chiller?

A: The customer should provide what kind of chiller they need,cooling capacity of chiller and working conditions of the chiller.With more information provided by customers, we can better select the products that meet the needs of customers.

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