Overview
Water-cooled chillers (with cooling towers) are highly efficient and suit large loads; air-cooled chillers need no tower and are simpler for medium buildings. Screw, centrifugal or magnetic-bearing centrifugal compressors are chosen by capacity range and part-load efficiency.
Annual efficiency (IPLV) matters more than full-load efficiency because chillers run mostly at part load. Chillers, pumps, towers and controls should be optimised as one chiller plant to cut energy.
Uses
- 01Central air-conditioning for plants and cleanrooms
- 02Water-cooled data centres
- 03Malls and hotels
- 04Process chilled water
Selection and acceptance checks
- Check capacity and COP/IPLV at design conditions
- Check refrigerant and plant-room safety requirements
- Commission, balance flows and hand over O&M records
Reference standards
- AHRI 550/590
- ASHRAE 90.1
- ASHRAE 15
For reference only. The standards for each project follow its design documents, current Vietnamese codes and the investor’s requirements.
Reference brands
- Daikin DaikinJapanese air-conditioning group: VRV, chillers, AHUs and residential units.
- Carrier CarrierUS group in air-conditioning, chillers, AHUs and refrigeration.
- Trane TraneUS HVAC brand of Trane Technologies: chillers, AHUs and controls.
- Johnson Controls Johnson ControlsBuilding solutions group: YORK chillers, Tyco fire protection, Simplex fire alarm and Ansul.
Brands are listed for reference; World Steel selects suppliers according to each project’s specification.
Sectors and solutions
Sectors
Data centers FDI factories Commercial buildings High-rise buildings
World Steel services
MEP general contracting Warranty and maintenance EPC contracting
