An A/C system designed for the comfort of people, not the protection of computer-based electrical systems. Computers and other high-tech equipment usually require an extremely low humidity environment [..]

Stands for Gallons Per Hour.

One of two types of basic cooling media (the other is chilled water). Direct expansion systems utilize Freon for cooling and dehumidification. The three most common methods of heat rejection are air c [..]

The amount of water vapor in a given amount of air space. Absolute humidity is measured by grains per cubic foot.

A piston type metering device that feeds the proper amount of liquid refrigerant into the evaporator.

Stands for Annual Fuel Utilization Efficiency.

The amount of air required to completely replace the air in a room or building; not to be confused with re-circulated air.

A device or system which delivers simultaneous control of air temperature, relative humidity, purity, and motion.

A type of air conditioning system that uses Freon as a refrigerant and air as a condensing medium. A fan discharges heat from the condenser coil to the outdoors. Typically, the air-cooled condenser is [..]

An air distribution outlet or grille designed to direct airflow into desired patterns.