Freeze Event 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...

Read More
Dirty Coil

Finned tube coils are meant to have contact with the air flow, as more contact creates more heat transfer. Heat transfer is nothing more than heat exchanged from one medium to another, and the goal is to create maximum heat transfer efficiency. The downside to this process is the coil’s susceptibility to foreign materials becoming lodged in them. The following explores this problem in a...

Read More
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...

Read More
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...

Read More
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...

Read More
Coil Delivery

Replacement coils are different than most parts of an air conditioning or heating system. Replacement coils are not in stock and will need to be fabricated. You can select thermostats, valves, fan parts, and even compressors in stock, but rarely an HVAC coil. Today, there are a lot of alternatives available to replace coils, but how many have a successful history and a precise system to...

Read More
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...

Read More
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...

Read More