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TOP TEN PROBLEMS IN
COMMERCIAL AIR CONDITIONING SYSTEMS
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TOP TEN OPPORTUNITIES IN
COMMERCIAL AIR CONDITIONING SYSTEMS
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10.
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Pumps and fans that are running backwards
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10.
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Interchange two wires, and boost pump or fan performance
50%. Check the seals on the pump since seals may be ruined
by running the pump backwards.
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9.
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Pumps and fans that have been reassembled incorrectly
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9.
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Adjusting Inlet cone spacing properly can save 5-20%.
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8.
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Systems that run when they don't need to
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8.
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If the building is unoccupied, turn off the air
conditioning.
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7.
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Misunderstood or neglected equipment maintenance
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7.
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Usually maintenance staff has to figure out how to
maintain these systems. Make and implement a maintenance
plan and reduce breakdowns.
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6.
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Systems that are unreliable
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6.
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Downtime costs you money and credibility. Fix the problem
instead of accepting it.
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5.
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Systems that are operated incorrectly due to lack of
training or information
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5.
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When you build a new system, insist that the project be
commissioned, so you get a workable O&M plan
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4.
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Air conditioning systems that operate in the winter and
do not have a free cooling cycle
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4.
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Take advantage of Mother nature to help with the cooling
and save 20-30%.
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3.
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Systems that are so oversized, they cannot control
humidity
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3.
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Don't buy a separate dehumidification system, de-rate the
cooling system to match the load.
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2.
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Unbalanced systems that overcool some areas to get
critical locations cool
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2.
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Rebalance cooling systems and consider systems with
individualized or local controls.
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1.
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Whole systems that need to run all the time to meet small
constant cooling loads
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1.
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Install a small dedicated machine for the 24 hour per day
loads, and shut off the A/C in unoccupied areas.
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