Guidelines For Air Velocities
Step # 1 in determining the size and performance of a coil is dependent upon understanding face velocities of air across the coil. Whether you use CCA’s coil selection program to help size the coil, or you are replacing an existing coil; the height, length and resulting velocity determine everything.
Why Cooling Coils Need to Be Replaced
In theory, properly engineered and maintained cooling coils should deliver 20+ years of service life. In practice, most coils are replaced prematurely. The root causes are typically operational neglect, environmental exposure, improper application, or design limitations. Below are the three primary drivers of early replacement, along with technical context. 1. Increased Air Resistance from Coil […]
Looking For A Trane Replacement Coil
If you need Trane replacement coil within a Trane system, but aren’t sure about the dimensions or decoding the model #, send this to Capital Coil & Air for pricing. On most Trane AHU’s, the AHU model #, as well as the coil or “part #”, is listed as “Service Model No Coil”. If you […]
Steam Distributing Coils (Non-Freeze)
Were you aware that Steam Distributing coils or “Non-Freeze” steam coils were essentially discovered by accident? At the inception of the HVAC industry, steam coils were originally designed to be shorter in length because there was not a good way to evacuate condensate. In an effort to make steam coils longer in length, the concept of a steam coil containing a tube within a tube was invented.
Top 5 Reasons Commercial HVAC Coils Prematurely Fail
Capital Coil & Air has come across virtually every scenario over the years in which a commercial HVAC coil had to be prematurely replaced, and we have since created an easy guide targeting the main reasons HVAC Coils prematurely fail.
Different Types of Steam Coils
There are two types of steam coils: standard steam coil, which is used in most reheat applications, and steam distributing coils, which are used in applications where the entering air temperature is below 40 F degrees.
How to Make Sense of Heating Coils
Of all the types of HVAC coils available, heating coils are probably the easiest to select and understand. Capital Coil has listed the three most common types of heating coils that you are likely to come across.
Chilled Water Coils – Circuiting Made Easy
Circuiting chilled water coils is really a balancing act of tube velocity and pressure drop. In other words, think of a coil as a matrix. Each coil has a specific number of rows, and a specific number of tubes within each row.
Frozen Steam Coils: How Do You Prevent This?
Freezes generally happen in older systems, however if your new system is not maintained properly or correctly installed, your steam coil can and will freeze.
Top 10 Fan Coil FAQ’s
1. A fan coil is among the easiest units to understand in the HVAC industry. Basically, there is a small forward curved fan, a coil, and sometimes a filter. They are all direct drive units. Click HERE to see Capital Coil’s full Fan Coil Product Lineup. 2. Fan coils run from 200 CFM to 2200 CFM, […]