Split Type AC Units
Consists of two main parts: the outdoor unit and the indoor unit. Outdoor unit is installed on or near the wall outside of the room that you wish to cool, it houses the compressor, condenser coil and the expansion coil or capillary tubing. The indoor unit contains the cooling coil, a long blower and an air filter.
Window Type AC Unit
In this air conditioner all the components, namely the compressor, condenser, expansion valve or coil, evaporator and cooling coil are enclosed in a single box.
Free Standing AC Uni
These fan coil units are located indoor. The outdoor unit or condensers are located outside the building where the heat is rejected through the vapor compression cycle.
Ducted Split AC Unit
A split-system central air conditioner has 3 components: an outdoor metal cabinet that contains the condenser and compressor. an indoor cabinet that contains the evaporator coil. an air handler, that in most cases is part of the furnace, that sends the cool air through the duct system.
Package Unit
Operation depends on configuration, but packaged systems typically heat and cool your home the same way their stand-alone counterparts do. The ducting with a single cabinet system is slightly different. The duct work is attached to the system rather than connecting to various components in your home.
FCU (Fan Coil Unit)
A fan coil unit (FCU) is a simple device consisting of a heating and/or cooling heat exchanger or 'coil' and fan. It is part of an HVAC system found in residential, commercial, and industrial buildings.
HRU (Heat Recovery Unit)
Heat Recovery Unit captures waste heat discharged from an Air Conditioning or Heat Pump system, and transfers that heat into a water heater tank, thereby creating low cost hot water for domestic use.
AHU (Air Handling Unit)
A large metal box containing a blower, heating or cooling elements, filter racks or chambers, sound attenuators, and dampers. Air handlers usually connect to a duct work ventilation system that distributes the conditioned air through the building and returns it to the AHU.