Retrofitting

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Retrofitting

Refrigerant Circuit and Controls Survey

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 […]
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Retrofitting

Operate Exhaust Fans Only When Necessary

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 […]
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Retrofitting

Designate a Smoking Area

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 […]
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Retrofitting

Verify Integrity of Dampers

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 […]
Retrofitting

Adjust Outside-Air Quantities

Sometimes air handlers are set up to provide more outside air than is necessary. Space use or occupancy rate may have changed since the original installation. Applicable ventilation codes may have changed. A quick check […]