Energy savings is rarely overlooked when installing large mechanical equipment, like chillers. But waterside economizers seem to be out-of-sight, out-of-mind. So we bring this information to you to hopefully...... Read More
Author: Brad Telker
Brad was born and raised in St Louis Missouri, where he spent the first 18 years of his life. At the ripe young age of 18, he embarked onto his next big adventure, traveling to the University of Missouri Columbia for a bachelor’s degree in Mechanical Engineering. Brad joined the cfm team in 2006, and now as the Vice President of Commercial Sales, he focuses on business development, as well as helping contractors and engineers find creative and unique solutions to any size project. When he’s not at work, Brad enjoys photography, running and spending time with his family.
Can you spot the design mistake?
Every once in a while we come across problem jobs with design issues. We like to share these so that everyone can learn from these mistakes and can hopefully...... Read More
How to Estimate a Custom Air Handler Change Out
Changing out a custom air handler may require a lot of attention to detail, but with the right checklist handy it should be no big deal! Here is a...... Read More
How to avoid a common chiller design mistake
We were recently called out to a job site visit because the commons area and hallways of a multi-million dollar condominium building had humidity issues. These areas were being served by...... Read More
Did you know that Rawal valves can help fix humidity issues?
For this solution to be successful, you will need to REDUCE the system airflow in addition to installing the Rawal valve. Lowering system airflow does TWO things: It lowers...... Read More
3 Ways to Measure Airflow for Rooftops and Other HVAC Equipment
One of the most common reasons for rooftop service calls is incorrect airflow. Low airflow will often lead to frozen evaporator coils, low pressure trips, sweating ductwork and low...... Read More
Can you use a standard rooftop for a makeup air application?
We get asked this question often. And for good reason, DOAS equipment is expensive. If a building owner needs makeup air, in most cases a DOAS will be required....... Read More
Did you know: Hot Gas Reheat provides NO benefit on a design day?
Did you know: hot gas reheat operation (for dehumidification) provides NO benefit on a summer design day? This can be an easy mistake to make. (to clarify from the start, this is NOT...... Read More
How to Calculate Cooling Capacity for a DOAS unit
This is an easy calculation if you know the cfm (airflow to be conditioned) and have a psychrometric chart handy. The formula for calculating total cooling is: Qt = cfm x (Hf-Hi)...... Read More
HVAC Rules of Thumb
If you’ve been in the HVAC industry for a while, you probably have some “Rules of Thumb” that you use throughout your day. Here are a few that you...... Read More
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