Introduction to Market Refrigeration for HVAC Techs w/ Matthew Taylor

June 19, 2024

Matthew covers the key differences between residential/commercial air conditioning systems and the parallel rack refrigeration systems found in supermarkets. He explains how the core refrigeration cycle concepts are the same, but the physical setup, components, and control strategies differ in market refrigeration.

Some of the topics covered include:

Major components like compressor racks, condensers, and evaporator cases

Control systems and sensors for precise temperature/pressure regulation

Maintaining different evaporator temperatures for product zones (freezers, coolers, etc.)

Defrosting strategies for evaporator coils running below freezing

Reclaim systems that recycle compressor heat for hot water or dehumidification

Split condensers and fan staging for low ambient operation

Whether you’re an HVAC tech looking to understand grocery store refrigeration better or just interested in learning about this specialized area, Matthew’s engaging presentation provides a clear overview. The session allows for participant questions throughout.

Buy your virtual tickets or learn more about the 5th Annual HVACR Training Symposium at https://hvacrschool.com/symposium.

Read all the tech tips, take the quizzes, and find our handy calculators here or on the HVAC School Mobile App for Apple and Android.

##hvacschool #hvac #HVACR #HVACREducation #hvactech #MarketRefrigeration #RackRefrigeration

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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.

In this episode of the Spidey Sense series, Bryan and Bert dive deep into the art of refrigerant leak detection, sharing their wealth of experience and practical tips for HVAC technicians. They emphasize the importance of using one’s senses and observation skills before relying solely on electronic tools, highlighting how this “Spidey Sense” approach is a hallmark of senior-level expertise in the field.

Visual and tactile cues, including warm suction lines, frosted components, and signs of oil, are vital. Different symptoms point to specific kinds of leaks and various scenarios, so you need to understand the behavior of the system.

Bryan and Bert also discuss the strategic application of soap bubbles, electronic leak detectors, and nitrogen for pressurization. Each method has limitations, and you’ll need to know when to employ them for maximum effectiveness. When detecting leaks, consider recent home renovations or equipment vibrations that might contribute to leaks.

Topics covered in the podcast include:

Visual and tactile cues for identifying potential refrigerant leaks
The debate on frosted lines as indicators of low refrigerant charge
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The importance of checking common leak locations (e.g., flare fittings, evaporator coils)
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Techniques for detecting very small, slow leaks that might not show up in pressure tests
The potential use of ultrasonic leak detection tools
The importance of thorough inspection and patience in the leak detection process

Have a question that you want us to answer on the podcast? Submit your questions at https://www.speakpipe.com/hvacschool.

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Introduction to Market Refrigeration for HVAC Techs w/ Matthew Taylor

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