Sentry Guard Tag

Sentry Guard

Operating water coils that are prone to air temperatures below freezing normally need the use of anti-freeze. The most common is glycol. This has been used for over 40 years, and there are two common types, ethylene and propylene. Anti-freeze provides a safeguard if there are mechanical or electrical breakdowns that may cause fluid to sit in a coil with below freezing air going across...

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Outside Air Loads

HVAC and process heating/cooling must deal with the added tonnage created by using fresh air from outside. Most times, the requirement for fresh air is mandatory and can go from 10% all the way to 100 % of the system air flow. There are numerous rules and regulations written to eliminate air flow quality problems, including bacteria and other micro-organisms, that can cause health problems....

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Sentry Guard

Florida is known for its beautiful beaches, great weather, pristine communities, and senior traffic heading to the “Early Bird Specials”. For many, it’s considered to be paradise! The state has continued to grow every year since 1950, and its continued growth seems assured.   During the winter months in the northern and central portions of the state, old man winter still comes knocking from time to time...

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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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Santa

  Around Christmas and New Year’s is always the busiest time of the year for all of us. It’s truly the best time of year to share with those we care about; enjoying shopping, family time, and holiday parties. The down side is that vacations and time off over these holidays leaves most companies with skeleton crews to monitor building HVAC systems. USA Coil wants to...

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pressure burst

There are numerous reasons why water and steam coils can have major freeze events.   The damage is often extensive enough to require a coil replacement. The following reviews some of the major freeze event causes.   Coils not drained properly when winterized – This problem may be out of your control. Many chilled water coil circuits and placement of drains makes it impossible to fully drain...

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