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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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Preventative Maintenance (PM)
    • PM is often a goal in facility maintenance, but frequently is overshadowed by crisis maintenance.  Keeping the equipment running supersedes determining “how the equipment is running” or developing a maintenance schedule that will minimize down time.  An issue that goes hand in hand with the lack of a PM program is the lack of information about system design and maintenance needs.
    • Many commercial facilities have been frequently remodeled or renovated with little attention to the HVAC system or controls.  For this reason, the first step to any PM program is to get to know your system.  Once you fully understand how the system was designed to work, you can determine what sort of PM makes sense.
    • Unscheduled maintenance is random service performed by the maintenance worker, including emergency work and breakdown maintenance.


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