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Chilled Water Coils

Guidelines For Air Velocities

by Dan Jacobs, February 18, 2025

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.
Coil Measuring App

NEW – Capital Coil Measuring App

by Dan Jacobs, February 13, 2025

Receive screen by screen guide on measuring HVAC coils; enter and save your coil dimensions/selections; use the app to take and save pictures of coils; save project(s) to work on later, and/or send final selections through the CCA app to our sales team to review and price
Chilled Water Coil

OEM Replacement Coils: Repair or Replace

by Dan Jacobs, January 21, 2025

The real reason why OEM HVAC coils need to be replaced rather than repaired is due to energy costs. If your coil is not operating near desired levels, you’ll need to increase the energy to make it work at its peak performance.
DX Coils

Now Offering R-454B Refrigerant for All DX Coils

by Dan Jacobs, January 14, 2025

In keeping with most of the OEM’s in 2024, Capital Coil is helping everyone transition from R-410A over to R-454B refrigerant in their DX Coils. Whether you are designing a new system, or retrofitting an existing one with a condensing system, Capital Coil can help in making the switch in refrigerants.
Cooling Coils

Chilled Water Coils – Circuiting Made Easy

by Dan Jacobs, December 17, 2024

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.

Chilled Water Coils

How to make your HVAC OEM Replacement Coil Buying Process Easier??

by Dan Jacobs, November 27, 2024

Capital Coil & Air has developed some simple strategies for the entire buying process that should help in avoiding many of the annoyances
DX (evaporator) Coils

What Does “Splitting” DX (Evaporator) Coils Mean

by Dan Jacobs, October 29, 2024

***Now Offering R-454B Refrigerant for All DX Coils “Splitting” DX (Evaporator) coils is one of the toughest concepts to understand…
Steam coils

Steam Distributing Coils (Non-Freeze)

by Dan Jacobs, October 1, 2024

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.
Steam Coils

How Should Steam Coils Be Designed??

by Dan Jacobs, September 23, 2024

Steam Coils require a real expertise to design & build. We at Capital Coil have a long history in solving coil problems and building steam coils so that they work correctly the first time.
Steam Coils

Frozen Steam Coils: How Do You Prevent This?

by Dan Jacobs, September 9, 2024

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.

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