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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.
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…
Chilled Water Coil

Cooling Coils & Moisture Carryover

by Dan Jacobs, August 13, 2024

Many people do not think that moisture carryover is a problem…until you have moisture running down ductwork or spewing all over the inside of an air handler.
Steam Coils

Tips on Hand Designation & “Counter-flow”

by Dan Jacobs, June 1, 2024

Are your water coils right hand vs. left hand?  Is it looking into the face of the coil or with the air hitting you in the back of the head?  What exactly is counter-flow and why is it important?  Are you completely confused by why right hand vs. left hand even exists? 
Chilled Water Coils

Coils and Counter-flow: 5 Common Questions

by Dan Jacobs, May 7, 2024

The first thing to remember about coils and counter-flow is that chilled water coils are always built to be piped in counter-flow. This means that the air flows in the opposite direction as the water. For example, with counter-flow, the air flows through rows 1-8, while the water runs through rows 8-1. Water always travels through the coil in the opposite direction of the air; hence the term “counter-flow.”  Direct Expansion Coils (Evaporator Coils) are also piped in the same manner.
Quick-ship

Case Study: We Need These Coils on a (5) Day Quick-ship

by Dan Jacobs, January 29, 2024

In late June, Capital Coil received a call from a Trane office in Ohio regarding quick-ship availability. One of Trane’s…
Quicki-ships

5 Work Day Quick-Ships on HVAC Coils – Why Capital Coil does it right

by Dan Jacobs, December 6, 2023

Day 1 – 38% of all orders sent to Capital Coil are on some kind of quick-ship, whether it be on a…
Replacement HVAC Coils

Why Are Fin Designs On HVAC Replacement Coils Important?

by Dan Jacobs, November 29, 2023

What is the point of understanding the importance of fins in HVAC replacement coils? While coils can be built with flat fins for various reasons, the vast majority of coils are built with enhanced fins. Enhanced fins help to ensure that the airflow is not running straight through the coil.

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