Category Archives: HVAC Controls

CBAS Power User: Claudio De La Cruz – Chief Engineer with Stiles, FL

Can you tell us a little about yourself?

I have been working in commercial high-rise buildings since 1992 at all levels of Building Engineering. I am currently the Chief Engineer at a 14-story Commercial Real-Estate Class A office building. I have worked with all types of Energy Management Systems. Honestly, the best and easiest to work with is Computrols.

Continue reading CBAS Power User: Claudio De La Cruz – Chief Engineer with Stiles, FL

Computrols & the Global Chip Shortage

For the past year our team has worked diligently to combat the challenges presented to our organization as a result of the global chip shortage. There is not a day that goes by where we are not faced with a fresh issue related to the availability of the raw materials/components required to manufacture our products. Our team is continually pulling tricks out of their hats that are more reminiscent of a master magician than the typical roles that they fill as Hardware Engineers, Software Engineers, Procurement Specialists, or Manufacturing Technicians.

Continue reading Computrols & the Global Chip Shortage

Types of Variable Air Volume (VAV) Boxes

As we previously discussed in one of our building technology basics videos, VAV (Variable Air Volume) controllers are integral to HVAC systems that require varying cooling and heating loads in different zones. In this article, we will explore some of the most common types of VAV boxes and their specific applications. Of course, there are many one-offs and iterations of these applications, but these are the ones you’ll see most frequently.

Continue reading Types of Variable Air Volume (VAV) Boxes

Integrating Legacy Control Systems

If your facility currently has a legacy control system that needs upgrading but you don’t have the capital budget for a full retrofit, you are likely considering some form of building automation system integration. By integration, we are referring to an approach that would leverage some portion of your existing system while likely changing out some of the higher-level components such as the front-end software and/or parent-level controllers. Integration is a logical choice in this situation but before moving forward with this approach, there are some important elements that you should fully understand.

Continue reading Integrating Legacy Control Systems

CBAS Power User: Chad Bellanger – Building Engineer, Lakeway Center


My name is Chad Bellanger, and I am a member of the building engineering team at the Lakeway Center, which is a three-building Class-A office complex containing approximately 1.2 million square feet of space, located in Metairie, Louisiana.

My background consists of a decade of electrical work, in both industrial and commercial applications. I spent several years on multiple oil and gas production platforms and spent the remainder of my electrical career doing troubleshooting, repairs, and construction in and around the New Orleans area. I was hired by Lakeway as a maintenance tech in 2011, where I eventually worked my way up to the title of Engineer.

Continue reading CBAS Power User: Chad Bellanger – Building Engineer, Lakeway Center

Trim and Response for Supply Pressure

 by Andrew Walton

Static Air Pressure (SAP)

“Trim and response” is a way of controlling static air pressure (SAP) within a building’s HVAC system. SAP is one of the most important factors in HVAC design. SAP refers to the resistance to airflow in a heating and cooling system’s components and ductwork within a building. The push of the air must be greater than the resistance to the flow or no air will circulate through the ducts.

Continue reading Trim and Response for Supply Pressure

What are HVAC controls and how do they work?

MarketsandMarkets forecasts the HVAC controls market to grow from USD 13.6 billion in 2018 to USD 27.0 billion by 2023, so it’s probably an industry you’ll want to keep your eye on. Whether you are new to the HVAC industry or simply want to know more about building operations or energy consumption, we’ll do our best to help you take your first step to learn more about these systems and how they work.

Continue reading What are HVAC controls and how do they work?