Author: Ed Janowiak
Ed Janowiak is ACCA's Manager of HVAC Design Education and can be reached at ed.janowiak@acca.org or 703-824-8878.
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It Will Never Work
This blog is another take on a vital conversation that needs to be discussed with your customers, how the system is going to perform. Many customers are used to oversized equipment that can quickly drop the temperature in their house (and leave them feeling uncomfortable because it’s humid). It’s vital to have “the talk” when you’re sitting at the kitchen table. If you have “the talk” now, you won’t have the callbacks later.
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What kind of damper are you using?
In HVACR systems, the term “damper” can refer to various types of devices used to regulate airflow. Here are some common types of dampers, including those that might come up in a discussion related to Manual D®, which is a methodology for sizing residential duct systems.
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Measurements, Not Eyeballs!
In the HVACR industry, it’s all too common to hear comments about ductwork being too big or too small based solely on appearance. Similarly, there are far too many comments that a system will never condition a space properly just by looking at it. While everyone is entitled to their opinion, there is a significant difference between opinions based on expectations and those grounded in precise measurements.