Chris Mohalley Archives - HVAC School

Chris Mohalley

Company name: Regal Rexnord

Position: Training Manager

Chris Mohalley is the training manager at Regal Rexnord. He has written for ACHR News and tends to center his training on blower motors, especially ECMs.

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HVAC School – For Techs, By Techs

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.

Dr. Allison Bailes from Energy Vanguard joins the podcast to answer the age-old question: do houses need to breathe? He also talks about his new book, A House Needs to Breathe… Or Does It? You can purchase that book directly through the Energy Vanguard site at https://energyvanguardstore.com/ or on Amazon.

HVAC professionals can benefit from learning about building science because there is a lot of overlap between the two, and an HVAC technician who knows about building science can set themselves apart in the market.

In short, Dr. Bailes doesn’t think a house needs to “breathe,” especially if a house brings in low-quality air, especially humid air, through gaps and cracks. Some people also use the term “breathe” differently; some may be referring to leakiness, and others may refer to drying out a house. It is necessary for a house to be dry, but we want to make sure that fresh air is controlled.

If you build a home tightly, you have to ventilate it correctly. We have to control air, liquid water, water vapor, and heat. Heat is especially complicated, as it has three different ways of moving and can come in sensitive and latent varieties. One way of controlling those is through control layers like vapor barriers, though these aren’t always needed; we must understand the vapor flow to determine if a vapor barrier is necessary.

Dr. Bailes and Bryan also discuss:

Energy Vanguard’s resources
The chapters of “A House Needs to Breathe… Or Does It?”
IAQ – filtration, humidity control, ventilation, and source control
Challenges with attic air
Dr. Bailes’s book-writing process
The HVACR Training Symposium and other events w/ Dr. Bailes

Keep up with Energy Vanguard, read the blog, and subscribe to the weekly newsletter at https://www.energyvanguard.com/.

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

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Do Houses Need to Breathe? w/ Allison Bailes

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Do Houses Need to Breathe? w/ Allison Bailes

01/26/2023

Bryan Orr

What the Heck is High Performance HVAC w/ David Holt

01/19/2023

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Setting Realistic Customer Expectations w/ Ed Janowiak

01/12/2023

Bryan Orr

Mini Split Install and Service Tips

01/03/2023

Bryan Orr

CO Doesn't Leak w/ David Richardson

12/29/2022

Bryan Orr

One HSI Furnace Control to Rule Them All w/ Jim Fultz

12/27/2022

Bryan Orr

Using Ice to Balance Energy Consumption

12/22/2022

Bryan Orr

We need to Pay Better! – An Audio Manifesto

12/20/2022

Bryan Orr

Refrigerant Myth Busting w/ Dr. Chuck

12/15/2022

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The Good, Bad and Ugly of Trade Schools

12/13/2022

Bryan Orr

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Check our latest Tech Tips

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REFRIGERATION TECHNOLOGIES

VENOM PACK CONDENSER PURE CONCENTRATE COIL CLEANER
Venom Pack Condenser Cleaner is a high foaming pure concentrate liquid designed to tackle the toughest soils. The proprietary blend of specialty detergents will liquify heavily embedded grease and grime to restore heat transfer and increase the efficiency of the coil.

Viper Condensate Pan and Drain Treatment
Viper Condensate Pan and Drain Treatment is a sprayable gel. It coats the pan, p-trap and drain piping with a lubricative film to improve flow and prevent future soil adhesion. The slow dissolving enzyme gel will outperform and outlast conventional tablets and strips.

Nylog Blue Gasket -Thread Sealant for AC/R Systems
One drop of Nylog on your rubber hose gaskets prior to attaching your core tools, hoses or vacuum gauge will assure that things do not bind or leak during evacuation. Derived from refrigeration grade lubricants. Non-hardening, non-drying fluid which bonds tenaciously to many different substrates. Typically, one drop of Nylog can be stretched about three feet before breaking.

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