There is so much more to installing a static pressure testing port than meets the eye. It involves drilling – a scary thing for both your service technicians and homeowner customers. The art of installing these ports involves more than the hardware and technology required to do it. There is a psychology to it. It …
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When it comes to HVAC sales, things can be quite confusing. The rapid pace of technological development means that no manufacturer can maintain a competitive edge for very long. Manufacturers develop a hot new box and, before they can cash their first check, a competitor has produced a bigger, better, faster or cheaper version. As …
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The Thermostatic Expansion Valve (TEV) has become the refrigerant metering device of choice for most HVACR manufacturers in the past decade. Over time, countless valves have been needlessly replaced because of low airflow affecting their operation. A basic understanding of TEV operation helps tie the effects of low airflow to proper operation of the valve. …
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It is often taught that to diagnose a restrictive air filter is as simple as a visual inspection to see if it’s plugged. Then, if the filter is dirty, replace it. Once this obvious defect is fixed, everything is assumed to work correctly. Could there be more to it? What if the new air filter …
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