This article is provided by Ambthair Services
We provide air conditioning design and consultancy, specialising in studios and low energy systems.
Air conditioning equipment is referred to by abbreviated names and may be rather confusing to those not dealing with the equipment on a regular basis; here is a list of some of the most frequently used terms.
They generally consist of a filter, fan and a cooling and/or heating coil. The difference between a fan coil unit and an air handling unit has become increasingly blurred. A fan coil unit generally is a small unit quite often located in the conditioned environment, they may also be located above a false ceiling and connected to a very small amount of ductwork.
Air handling units are generally always intended to be connected to distribution ductwork, and the fan is sized to facilitate this.
Recently larger fan coil units have been manufactured as standard and have been designed to enable distribution ductwork to be connected, typically these larger fan coil units have fans capable of providing up to 150 Pascals static pressure (~0.6 inches water gauge).