January 2019

Coil-Icon

In a perfect world, most cooling coils should operate efficiently for twenty years or more. Lack of proper maintenance, inappropriate applications, corrosion, and less-than-stellar modern-day construction all affect the life expectancy of cooling coils. There are three major reasons for premature cooling coil replacement as follows:   Increased air resistance due to the plugging of the coil surface. What causes this plugging? There is an increase...

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Corrosion in Tube

There are many reasons why hot water coils in your system can under-perform. Some reasons are from the time of the design, and many other instances can also occur after the coils have been installed. Here are 10 common reasons why hot water heating coils can fail:   Air stratification issues - The air flow across the surface of the coil is not being evenly...

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Hot Water Coil

Water Cooling and Heating Coils   Water is the most widely used heat transfer medium because it’s readily available and low in cost. Water can be used as a heat transfer medium if the temperature range is between 15 degrees Fahrenheit (when mixed with glycol) when cooling and a high of 210 degrees Fahrenheit when heating.   Chilled Water Coils   When maintaining an acceptable living or working condition in...

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Basic Horizontal Unit

Many fan coil unit installations are in condos, apartments, townhouses, hotels, and other types of lodging. Most systems are two or four pipe heating/cooling systems and usually use chilled water for cooling and hot water for heating. These units can be permanent or temporary residences occupied by an owner, tenant, or paying customer, which may mean they are more demanding.   There are 3 types of units...

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