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HVAC contractors
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January 21, 20190Comments

We Are in a Technician Crisis

I recently returned from a statewide convention of air conditioning contractors. While I have known for several years that for every 4 HVAC techs leaving the industry only 1... YES,
by Ron Walker
Technician Certification
EPA Study Course
HVAC Certification Course
April 16, 20180Comments

Technician Certification

One of the most frequently asked questions I receive is about the EPA certification (HVAC Certification) and the different types of certification. Two items of note: Apprentices are exempt from certification requirements
by Ron Walker
online hvac training
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Our Courses
May 2, 20170Comments

Coming Soon – HVACTraining.TV

It has been months in development, but we are very close to launching HVACTraining.TV. Throughout the years I have received many requests for stand alone online HVAC training that HVAC
by Ron Walker
Nitrogen Purging and Brazing
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HVAC Training Articles
March 2, 20170Comments

Nitrogen Purging and Brazing

Most HVAC installation instructions require flowing nitrogen through the copper tube during brazing. This is an important step in producing a quality HVAC system and nitrogen purging and brazing. Why nitrogen
by Ron Walker
Current Relays Commercial Refrigeration
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July 29, 20160Comments

Current Relays Commercial Refrigeration

On start-up, the amp draw of the compressor is near LRA before the rotor starts to turn. The high current in the power leg going from M, through R, to the
by Ron Walker
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