Over time a building's HVAC system becomes less efficient due to the contamination that fouls the system's cooling coils. Typically, cooling coils are treated  with acid to clear the build-up of contaminants. But as the photos here demonstrate, such cleaning is often superficial.

Click here to read an article explaining why acid cleaning of coils is frequently ineffective.

Fig. 1 - Cooling coil cleaned with acid	Fig. 2 - When cut open, this cross section of the coil reveals contamination acid cleaning left behind

VIGILAIR® irradiation of the coil returns the coil to 'as built' specifications.

VIGILAIR® users can expect energy savings in the following areas:

• Fan energy use decreased
• Chiller use decreased
• Chiller pump use decreased
• Set point temperature returned to original standard

For more detailed information on energy savings or to request an energy savings report for your building, Contact Us.

Photos from Contracting Business, November 1997 issue, copyright 1997 Penton Media, Inc.