PACKAGE TERMINAL AIR CONDITIONERS AND PACKAGE HEAT PUMPS
Installation of a package terminal air conditioning unit (PTAC) or a package terminal heap pump (PTHP) that is through the wall, self-contained,
and less than two tons with an EER that is 20% higher than the minimum.
ADVANCED EVAPORATIVE COOLERS
Replacement of a vapor-compression air conditioning system with an evaporative cooler. An advanced evaporative cooler uses rigid, manufactured
evaporative media and is equipped with water quality management systems that provide positive removal of sump water at regular intervals.
Air-side economizers use cool outside air as a means of cooling the indoor space and water-side economizers use water cooled by a wet cooling tower to cool buildings without operating a chiller.
CHILLER A device or unit that removes heat from a liquid via a vapor-compression or absorption refrigeration cycle.
Material used to help maintain a certain temperature in a building by reducing the flow of heat to and from that building.
A heat removal device used to transfer process waste heat to the atmosphere. Cooling towers may either use the evaporation of water to remove process heat and cool the working fluid to near the wet-bulb air temperature or rely solely on air to cool the working fluid to near the dry-bulb air temperature.
A mechanical device that pressurizes a gas in order to turn it into a liquid, thereby allowing heat
to be removed or added.
A device or unit used to condense a substance from its gaseous to its liquid state, typically
by cooling it. In so doing, the latent heat is given up by the substance, and will transfer to the
HVAC SYSTEMS Heating, Ventilating and Air Conditioning (HVAC) is used either collectively or individually to provide heating, cooling and humidity control in a building.
A system or device that utilizes remotely controlled devices such as thermostats, sensors, and switches to regulate a heating or cooling system.