Retrofitting

Window air-conditioning units are often used for cooling only. In such situations, the outside air vent should be covered in the winter to prevent infiltration through the unit. Otherwise, the window unit becomes a full […]

There are several routine tasks that should be done to keep the refrigerant circuit of the cooling equipment in optimum condition. The system will not only perform most efficiently, but the longevity of the compressor […]

Kitchen vent hoods are a common culprit for over exhausting. Many large kitchens operate their exhausts all day long. As a result, they are continually evacuating conditioned air from the space. The hoods are needed […]

The presence of smoke in a conditioned space places an extra burden on the HVAC system. The smoky air can’t be recirculated and returned to the space after cooling it back down, as is the […]

Large air-handling units (AHUs) have dampers in the return air duct and outside air duct. These control devices regulate the flow of air to be treated by the AHU. Often the outside air damper has […]