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Home » Authors » Bryan Orr
Bryan Orr

Bryan Orr

Bryan Orr is the vice president at Kalos Services Inc. and founder of the HVAC School. 

Articles

ARTICLES

Humidity

The Impact of Adding or Removing Water from Air

Understand the effects of temperature and humidity changes
Bryan Orr
March 16, 2020
No Comments
We often humidify and dehumidify as part of our work, but let’s take a different look at what happens when we do that.
Read More
Blowtorch-flame

Understanding HVACR Brazing Indicators

How to ensure connections are done correctly
Bryan Orr
March 2, 2020
No Comments
In brazing and soldering tubing, we have a few things we need to accomplish to make a proper connection.
Read More
Pillars

The Five Pillars Of Residential A/C Refrigerant Circuit Diagnosis

Take all of these into account on each service call
Bryan Orr
February 17, 2020
No Comments
Suction pressure, head pressure, subcooling, superheat, Delta T: Taking all five of these calculations into account is critical.
Read More
Tools

Understanding the Use of Suction Filters/Driers

They can help protect compressors when used right
Bryan Orr
February 3, 2020
No Comments
Unfortunately, we can easily forget the role that suction driers can play in protecting the compressor and the compressor oil.
Read More
Freezing

Why Air Conditioning Systems Freeze and How to Fix Them

Understanding the basics will help your service team
Bryan Orr
January 20, 2020
No Comments
Some systems we work on and install will freeze. Air conditioning is not one of them.
Read More
Web Exclusive - The ACHR News

How to Diagnose a Thermostatic Expansion Valve Failure

Tips for understanding the role of the TXV, and how to service it
Bryan Orr
January 6, 2020
No Comments
This article will hopefully save the lives of a few TXVs and the pocketbooks of some customers.
Read More
Temperature-thermometer

A Guide to Air Barriers, Vapor Barriers, and Insulation

Understanding these basics will help with building issues
Bryan Orr
November 25, 2019
No Comments
Trying to fix building problems with equipment can be a problem. Here are some basics to help you diagnose and solve building issues.
Read More
Electricity

The Basics of 20 mA Control

Understanding electrical controls
Bryan Orr
October 28, 2019
No Comments
Controls have gone from mechanical to electrical, so we have systems that are controlled by analog electrical signals and digital electrical systems.
Read More
Number-Four

Four Mistakes for Beginning HVAC Techs to Avoid

Tips to stand out for successful work
Bryan Orr
September 30, 2019
No Comments
There are some very preventable mistakes that occur due to simple oversight and carelessness. A few practices will avoid them.
Read More
TECH SUPPORT

Bryan Orr: Virtual reality still needs work for HVAC techs

Virtual reality has officially arrived in the skilled trades — used in everything from construction management, welding tutorials, to HVAC technician trainings. But are we ready to make virtual reality our new normal?
Bryan Orr
September 27, 2019
No Comments

I HAVE ALWAYS LOVED NEW TECHNOLOGY. And as a kid, I was an early adapter. My first computer was a DOS 286-based PC, and to cure my boredom, I quickly learned how to boot up basic programs from a 5.25 floppy on that machine.


Read More
View All Articles by Bryan Orr
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