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Suction pressure, head pressure, subcooling, superheat, delta T. Taking all five of these calculations into account on every service call is critical. Even if you must do further diagnostic tests to pinpoint the problem, these five factors are the groundwork before more effective diagnostics can be done. I would also add static pressure as an […]
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In the residential HVAC industry, technicians are faced with customers every day. Each interaction presents its own set of unique challenges since no two customers are ever the same. While the variety of people we may encounter is wide, the HVAC technician's variety of soft skills and intuitive ability to communicate needs to be even […]
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Every now and then, a tech will call me and give me the same story of woe. They're working on a system and have the following readings: Low superheat Low suction pressure Low head pressure They'll reassure me that the system airflow is correct. So, what could possibly be wrong? I'll ask how they could […]
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