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Retrofitting

Desuperheater

Air-cooled chillers are popular with smaller commercial facilities that aren’t quite big enough to justify a chiller and cooling tower. Air-cooling is an energy-intensive process that requires many fans operating to cool the refrigerant. The […]
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Retrofitting

The Ground-Source Heat Pump

A variation of a water-source heat pump is a WSHP that rejects heat to the ground, instead of to the air at a cooling tower. The water from the refrigerant-to-water heat exchanger is circulated by […]
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Retrofitting

Chemical Additives

There are many applications in the HVAC industry where a chemical must be added to a volume of water. Condenser water, in an open cycle that passes through a cooling tower, must be chemically treated […]
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Retrofitting

Cooling Tower Maintenance

Cooling towers operate on the principle of evaporative cooling. As water evaporates, it absorbs a quantity of heat from its environment equal to the heat of vaporization, which represents almost 10 times more energy than […]
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Retrofitting

Simple Branch Three-Way Valve

A three-way valve is the basis for the most common way to supply individual coils off a main hydronic loop. The valve opens on a signal from the thermostat, diverting a portion of the water […]