Another HVAC Training Service Call

This is a Module 3 – Refrigerants and Refrigeration lesson. Your third call of the day is at the Humidor. Your dispatch information informs you that the Humidor is under contract for sale and the buyer would like the HVAC system checked out. You are to meet him there, and make no mention that the…

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HVAC Training – Service Call

by Ron Walker You’re sent on a residential service call for an AC system that is not cooling properly. Having just finish a large commercial job at a hotel, you clear your mind and get ready for the next one. Remembering that you should not try to pre-diagnose a call.. you can’t help but wonder.…

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HVAC Training Service Call

by Ron Walker This is a Refrigerants and Refrigeration lesson. You’e called out to a local hotel, the manager says, “The lobby air conditioning unit is running, there is water everywhere,  we have the thermostat set to 76F and it’s 88F in the lobby.” Before you grab your tools and gauges, you locate the thermostat…

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NATE Training

NATE Certification Study Course and Practice Test   NATE HVAC/R Certification Basics NATE certification tests represent real working knowledge of HVAC and HVAC/R systems and are designed to allow you to be certified in specific knowledge areas. You can earn installation, service or senior certification in one or more of the following specialty areas: Air Conditioning…

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The Impossible Service Call

by Ron Walker The most difficult service call to deal with is when it is extremely hot outside and you arrive at the customer’s home and they are upset because the system will not keep up. So, what do you tell them? First let’s look at the following: During the refrigeration cycle, liquid refrigerant from…

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