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Proper Use of Manometers for HVAC Technicians

Learn about Proper Use of Manometers for HVAC Technicians and system commissioning in this comprehensive hands-on training session. Whether you're a new technician or looking to master static pressure measurements, this video covers everything you need to know. What You'll Learn: Manometer Basics: Why many techs avoid using manometers and how to overcome those barriers Understanding water column measurements and pressure conversions Proper zeroing techniques and precision requirements Static Pressure Fundamentals: What static pressure actually measures (resistance to airflow) The difference between positive and negative pressure readings Why static pressure is like balloon pressure Diagnostic vs. Efficiency Testing: External Static Pressure: Measuring equipment strain for efficiency analysis Diagnostic Testing: Using pressure drops across coils and filters Proper probe placement for accurate readings Hands-On Demonstrations: Live measurements on actual equipment Filter pressure drop analysis (dirty vs. clean) Coil pressure drop testing Troubleshooting high return/low supply scenarios Key Takeaways: External static pressure should be measured above the filter and above the blower Lower static pressure = less resistance = better efficiency Practice makes perfect - the more you measure, the better you understand normal ranges Don't let perfection prevent you from taking measurements Practical Applications: Setting proper fan speeds using factory charts Calculating CFM per ton (Florida target: 350 CFM/ton) Identifying dirty coils through pressure differential Diagnosing airflow issues and system strain Why This Matters: Understanding manometer use is crucial for proper system commissioning, efficiency optimization, and accurate diagnostics. This training will help you move beyond basic pressure readings to truly understanding what your measurements mean for system performance. Read all the tech tips, take the quizzes, and find our handy calculators at https://www.hvacrschool.com/ or the HVAC School Mobile App on the Google Play Store (https://hvacrschool.com/play-store) or App Store (https://hvacrschool.com/app-store).