Merry Christmas to YOU! Giveaway

By December 20, 2017

Merry Christmas to YOU! Giveaway

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HVAC School – For Techs, By Techs

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

Phil Barr and Nathan Orr join the podcast to talk about wiring refrigerated cases in commercial spaces, including convenience stores and supermarkets.

Cases may be medium-temp (or high-temp, in some cases) or low-temp. Medium-temp cases can typically defrost on their own during the off cycle, and low-temp cases may have electric or hot-gas defrost to help get ice off the coil at set intervals. Each system has an evaporator (and fans), compressor, condenser, and metering device (often a TXV or EEV), and low-temp refrigeration may have anti-sweat heaters, EPRs, and other components to manage.

Challenges arise when electricians don’t understand the fundamentals of commercial refrigeration, especially as the electrical circuitry relates to the refrigeration circuit components. Time crunches also apply a lot of pressure to electricians and refrigeration technicians. Testing circuits, such as fans and lighting, or using circuit tracers are good ways to get an idea of how an existing system is wired. Labeling wires and breakers and keeping those labels or information in places where others can read them can help you and other electricians in the future.

One of the most common issues happens when technicians or electricians refuse to test out their results to catch their mistakes before callbacks happen. Even seemingly small electrical issues, such as improper lighting, can cause costly losses if product spoils and cannot be sold.

Phil, Nathan, and Bryan also cover:

Changes in central and case control strategies over time
Challenges with retrofits and remodels
Central lighting controls
Mistakes that can be made when labeling wires or breakers
Working against the clock
Terminal blocks, DIN rails, and connectors
Making mistakes and the origin of animosity

Learn more about the HVACR Training Symposium or buy a virtual ticket today at https://hvacrschool.com/symposium.

If you have an iPhone, subscribe to the podcast HERE, and if you have an Android phone, subscribe HERE.

Check out our handy calculators HERE.

Search Episodes

Wiring Refrigerated Cases w/ Nathan & Phil

09/14/2023

Bryan Orr

Things to Keep out of the System – Class

09/07/2023

Bryan Orr

ACH (Air Changes Per Hour) – Short #174

09/05/2023

Bryan Orr

Oil Return and Refrigerant Charge in VRV w/ Roman Baugh

08/31/2023

Bryan Orr

Magical Air Cleaning Oxides? – Short #173

08/29/2023

Bryan Orr

Can Filters Capture Viruses? – Short #172

08/22/2023

Bryan Orr

Heat Pumps + Inverters w/ Joey H

08/17/2023

Bryan Orr

Get Air Where it Needs to Go W/ Joey H.

08/10/2023

Bryan Orr

Business Round Table – Tersh, Peterson, Holt

08/03/2023

Bryan Orr

Cap Tubes and Flow Facts – Short #171

08/01/2023

Bryan Orr

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Comments

Chuck DeArruda

12/20/17 at 05:49 PM

Thanks Bryan for all the great training resources!

Raymond self

12/20/17 at 11:06 PM

Always something to learn

Wayne Eady

12/20/17 at 11:50 PM

Dude!! I could totally use some free stuff!!

Brandon Drake

12/21/17 at 12:43 AM

I started listening almost a year ago. Great content and lots of info gained. I love the ability to answer questions my other techs ask just with info I have learned by listening to you and the other guys with blue collar roots. And the daily tech tips get my apprentices talking and asking questions. Again thank you for everything you are doing!!!! Keep it up.

Robert

12/21/17 at 07:38 AM

Good info

Mike Mann

12/21/17 at 08:13 AM

I entered my email, but haven’t gotten a confirmation message to complete my entry.

Paul Allen

12/22/17 at 09:33 AM

Thank you Brian for the great service that you provide. New techs in the field really need advice from those that have been in the trade for a while.

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