Noisy indoor unit complaints usually fall into one of six different categories. Problems include a loose, broken, or out of balance blower wheel. Here is a discussion of possible causes and items to check.
In this installment of the Btu Buddy series, Bob goes on a service call to a motel where the chiller has shut down. He finds that both the water tower and the chiller's condenser tubes are dirty and require cleaning.
This convenient a/c start-up checklist from the Hartford Steam Boiler Inspection and Insurance Co. has been designed to help maximize reliability, economy, and fuel conservation in the operation of air conditioning equipment.