Factors To Consider When Choosing Employment When choosing employment in the skilled trades, there are many factors to consider.  Pay scale, benefits, work environment, etc.  On this episode of the HVAC Know It All Podcast we discuss a few of these and how to find the right employer.   Subscribe to the HVAC…

Internal Scroll Compressor Protection w/Don Gillis On this episode of the HVAC Know It All Podcast we talk to Don Gillis from Emerson.  We discuss Don's experience volunteering on the assembly line building compressors and internal scroll compressor protection.   Subscribe to the HVAC Know It All app  Follow HVAC Know It All on…

Reputation Marketing and Online Reviews To Grow Your Business w/Shawn Hill On this episode of the HVAC Know Know It Podcast we discuss reputation marketing with Shawn Hill from NiceJob, which is a fairly new concept.  It involves growing your skilled trades business by generating a great online reputation and marketing that…

The Ins And Outs Of Superheat w/Jamie Kitchen On this episode of the HVAC Know It All Podcast we take a deep dive into superheat with Jamie Kitchen from Danfoss.     Subscribe to the HVAC Know It All app  Follow HVAC Know It All on Instagram, Facebook, YouTube and LinkedIn and LISTEN to the HVAC Know…

Why HVAC Companies Need to Focus on Reputation Marketing Reputation marketing is the process of using your company’s reputation to market your business to new leads. It is also about acquiring and amplifying positive brand content to use your reputation as a promotional asset in marketing campaigns. It combines elements of…

Gary McCreadie is an HVAC tech, the creator of hvacknowitall.com and the HVAC Know It All Podcast Indoor Air Monitoring To Increase IAQ Preface: This article with embedded podcasts was designed to educate contractors on indoor air quality and indoor air quality monitoring.  Please use this article as a tool to educate your customers, help them stay…

Matthew Showers is an HVAC service technician, performing work in both the residential and commercial fields.  His specialty is in inverter and communicating systems.  Follow Matt on Instagram  Many of you in the industry have heard of geothermal heat pumps: you may have also heard of the many potential benefits they offer,…

Matthew Showers is an HVAC service technician, performing work in both the residential and commercial fields.  His specialty is in inverter and communicating systems.  Follow Matt on Instagram  As heating season gets underway for many of us, we will inevitably find heat exchanger cracks in furnaces, whether in someone’s home or…

Gary McCreadie is an HVAC tech, the creator of hvacknowitall.com and the HVAC Know It All Podcast Refrigeration Cycle Explained To set this up properly, I really should bring up the first time I put some lackadaisical thought into refrigeration or air conditioning.  I was a young teen walking by the side…

Joshua Rees is an industrial refrigeration technician, father of six beautiful children and a husband to his beautiful wife Jessica.  Joshua has been in the industry since sixteen and started his career in the commercial HVAC/R industry.  During a conversation with some of my peers, the subject was brought up about oil loss in screw…

Gary McCreadie is an HVAC tech, the creator of hvacknowitall.com and the HVAC Know It All Podcast This short podcast also covers this burner repair in detail   The Problem This heating tip was generated from some on site aggravation while repairing a burner.  During the initial preventative maintenance, it was discovered that the 1st…

Gary McCreadie is an HVAC tech, the creator of hvacknowitall.com and the HVAC Know It All Podcast A General Guide To HVAC/R Troubleshooting This is a general guide to HVAC/R troubleshooting.  We won't be getting into specifics that involve local codes, OEM procedures and guidelines or in-depth analysis of things like static…

Gary McCreadie is an HVAC tech, the creator of hvacknowitall.com and the HVAC Know It All Podcast When working on small, self contained reach in coolers and freezers, you’ll notice many of them are not equipped with service access valves for testing, evacuation and recovery.  This makes it difficult to troubleshoot if…

Gary McCreadie is an HVAC tech, the creator of hvacknowitall.com and the HVAC Know It All Podcast The science on how we pull an evacuation on air conditioning and refrigeration systems has changed over the years.  Back in the day, technicians would purge refrigerant through the system to remove air, moisture…

Matthew Showers is an HVAC service technician, performing work in both the residential and commercial fields.  His specialty is in inverter and communicating systems.  Follow Matt on Instagram  As environmental regulations change, manufacturers of HVAC equipment are being forced to find refrigerants that are not only environmentally safe, but also perform…

Matthew Showers is an HVAC service technician, performing work in both the residential and commercial fields.  His specialty is in inverter and communicating systems.  Follow Matt on Instagram  As the world gravitates to higher efficient equipment, manufacturers are looking to create solutions that are both effective, but also practical from a…

  Patrick Lange is an experienced HVAC specific business broker with Business Modification Group.  Most HVAC businesses start with an ambitious and talented technician that dared to take the leap and open their own shop. Somewhere along the way, they will get frustrated and realize their income is capped by the hours…

It was a warm August day, myself and my co-worker were digging into some PM work.  We found one of the Carrier RTUs without power and the breaker tripped.  

"This one time, at band camp," is a famous line you may remember from the movie American Pie.  Although the narrative, as it pertains to this article goes as such, "this one time, in residential". 

Expansion valves are used to inject refrigerant into the evaporator of refrigeration and AC/HP systems at a condition that will allow the refrigerant to absorb heat.