Hoses, Ports and Schraders – Save Those Fingies

July 17, 2024

Join HVAC expert Bert as he dives deep into the world of hoses, ports, and Schrader valves. Learn how to Save Those Fingies! Essential safety tips and techniques to protect your hands while working with pressurized systems. In this comprehensive how-to video, Bert covers:

The history and importance of Schrader valves in HVAC

Safety equipment and best practices

Proper techniques for connecting and disconnecting hoses

How to use core depressors and ball valves effectively

Tips for maintaining and replacing valve cores

Common mistakes to avoid and what to do in emergency situations

Whether you’re a seasoned pro or just starting out, this video is packed with valuable insights to keep you safe and efficient on the job. Don’t miss Bert’s practical advice on handling refrigerants and avoiding costly mistakes.

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##hvacschool #hvac #hvaclife #HVACR #HVACTechSafety #PressurizedSystemSafety #SchraderValve #StaySafe #techtips #ValveCoreReplacement

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Real training for HVAC ( Heating, Ventilation, Air Conditioning and Refrigeration) Technicians. Including recorded tech training, interviews, diagnostics and general conversations about the trade.

Chris Hughes and Steve Rogers from The Energy Conservatory discuss TEC’s TrueFlow technology and its crucial role in predicting airflow issues in the sales process, particularly for heat pump retrofits. They explain how the TrueFlow app helps contractors accurately measure both static pressure and airflow in existing systems, enabling them to predict whether proposed equipment changes will work effectively. This is especially vital when considering the growing trend of replacing gas furnaces with heat pumps, as the airflow requirements can differ significantly.

The conversation delves into a detailed example of replacing an 80% efficient 48,000 BTU furnace with a heat pump. They demonstrate how the airflow requirement would nearly double from 652 CFM to 1,200 CFM, potentially causing the static pressure to quadruple due to Fan Law 2 principles. This dramatic increase could lead to significant performance issues if not properly addressed during the system design phase. The experts emphasize that using TrueFlow during the sales process allows contractors to identify potential problems and necessary modifications before installation rather than discovering issues during callbacks.

The discussion also covers the ideal workflow for system assessment and sales, starting with customer comfort evaluation and proper load calculations. It’s important to reduce loads through envelope improvements when possible, particularly in cold climates where heat pump retrofits are becoming more common. Proper system sizing often means going smaller rather than larger, contrary to common industry practices, and the worst HVAC systems are often found in expensive custom homes rather than tract housing.

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TrueFlow technology and its role in system forecasting
Fan Law 2 and its impact on static pressure when changing airflow
Heat pump retrofit challenges and considerations
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Dual fuel systems as a solution for cold climates
The relationship between airflow and static pressure
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Check out TEC’s YouTube channel at https://www.youtube.com/@energyconservatory, and you can visit TEC’s website at https://energyconservatory.com/.

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Purchase your tickets or learn more about the 6th Annual HVACR Training Symposium at https://hvacrschool.com/symposium. Subscribe to our podcast on your iPhone or Android. Subscribe to our YouTube channel. Check out our handy calculators here or on the HVAC School Mobile App for Apple and Android.

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Hoses, Ports and Schraders – Save Those Fingies

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