#hands on

Tech Tips:

The Hands-On Learner Vs. The Visual Problem Solver

Let's get something out of the way right off the top: saying that we learn best “hands-on” is sort of like saying we prefer to breathe air. WE ALL NEED TO APPLY THINGS TO LEARN THEM DEEPLY! David Sandler wrote the book You Can't Teach a Kid to Ride a Bike in a Seminar, and […]

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How to Evacuate an AC system, Full Vacuum Procedure

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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.

In this episode of HVAC School, hosts Bryan Orr and Bert discuss practical tips for preventing callbacks and failed inspections in residential HVAC installs and maintenance.

Bryan and Bert stress the importance of getting the basics right, like properly cleaning condensate drains, ensuring proper drain pitch, and sealing ducts completely before relying on tapes and mastic to cover gaps. They emphasize verifying full system operation at the end of a job, from checking that drains flow freely to testing float switches and pressure testing for leaks. Bryan and Bert also cover wire and breaker sizing for equipment changes, securing disconnects, proper thermostat wall seals, inspecting joints with bubbles to find microscopic leaks, and more thorough evacuations and leak checks.

Throughout the casual, conversational show, the hosts inject colorful commentary on doing quality work with a little sarcasm, including praising the merits of duct board and flex ducts. The tone is partly tongue-in-cheek but drives home the point that shortcuts lead to callbacks and leave clients dissatisfied.

Bert and Bryan also discuss:

Becoming masters of the obvious
Common condensate line issues
The issues with double traps
Ensuring adequate filter access for the customer
Wiring float switches in series vs. in parallel
Sealing ductwork effectively
Using your senses to find airflow leaks in the ductwork
Pressure testing for refrigerant leaks
Common leak points in systems and their causes
Correct electrical setup and markings
Securing outdoor unit placement
Sealing thermostat wall penetrations
Thorough evacuation and leak checks

Learn more about the 5th Annual HVACR Training Symposium at https://hvacrschool.com/Symposium24.

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Common Callbacks and Failed Inspections on Install

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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.

NAVAC

Find out more about the Innovative NAVAC line of Vacuum Pumps

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