City Of Chula Vista
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Commercial Building Operations and Maintenance


Air Conditioning Maintenance


Air Conditioning Performance


Air Temperature


Building Envelope Maintenance




Boiler Combustion Air Tune Up


Boiler Maintenance


Boiler Water Treatment


Chiller Maintenance


Cooling Tower Maintenance


Comfort Factors


Ducts and Dampers


Occupant Issues


Predictive Maintenance


Preventative Maintenance




Relative Humidity



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Predictive Maintenance

Breakdown maintenance is service on failed equipment that has not received any scheduled maintenance.  Breakdown maintenance is used only on equipment that is inexpensive and non-critical to facility operations.  It is also the most expensive type of maintenance work.

Scheduled maintenance is work that is planned and scheduled.  The goal is to minimize emergency work, and assure reliable and efficient operations that maintain required quality standards.  Scheduled maintenance work includes periodic maintenance, corrective work and project work.

Predictive maintenance (PDM) is a growing area of preventive maintenance.  PDM uses electronic monitoring equipment to warn of problems before they affect equipment performance.  PDM requires a substantial investment in training and equipment and is most commonly used on expensive or critical equipment.



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