Basics for Checking the Refrigerant Charge of an Air Conditioner Presentation
Written in the order you do the job
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A teaching deck on one subject, done properly: the fundamentals of checking the refrigerant charge of an air conditioner. Written by Craig Migliaccio for instructors and training departments. Digital download in PowerPoint — nothing ships.
Download access at checkout
No parcel and no shipping charge. The file is yours as soon as the order completes, which matters when the class is tomorrow morning.
From someone who has taught it and done it
Craig Migliaccio holds an HVACR Master License, is licensed by the State of New Jersey to teach HVACR, has over 16 years in the field and owns an HVAC contracting business.
Checking the charge is the job a technician does more often than almost anything else, and it is the one most of them were never taught in order. They were shown a gauge set, given a rule of thumb, and left to work the rest out on customer equipment.
This presentation covers the basics of checking the refrigerant charge of an air conditioner as a teaching unit: what you are actually measuring, and why a reading on its own does not tell you whether the charge is right.
It comes from the same instructor who wrote Refrigerant Charging and Service Procedures for Air Conditioning, so it uses the same terms and the same order as the book. If your students have the book, the deck fits straight on top of it.
Getting the charge wrong is expensive in ways a trainee does not see yet:
- A unit left overcharged or undercharged comes back as a callback, on your labor
- Refrigerant added to a system that did not need it is money vented into a problem
- A compressor that fails early rarely gets blamed on the charge check that caused it
- A tech who cannot explain the reading cannot explain the invoice to the customer either
Which is why it is worth a dedicated lesson rather than ten minutes at the end of another one.
Digital product, no physical shipment and no shipping charge. Download access is issued when the order completes. The file is a PowerPoint presentation, so you can project it as-is or adjust slides to match your course. For the exact contents before you buy, or to check use across multiple instructors or sites, email info@acservicetech.com.
One topic, taught in the right order.
A narrow deck beats a broad one here. Instead of touching charging inside a general air conditioning overview, this one stays on the subject long enough for it to land, which is what students need before they are turned loose with a set of gauges.
See the book behind itSlides first, gauges second.
Teach the reasoning on the screen, then put a manifold in their hands and have them do it. Keep the P/T Chart and the HVAC calculators up during the lab so the numbers they read on the screen are the numbers they read on the equipment.
See the classroom training projectsDrops into a course you already run.
You do not have to rebuild a syllabus around it. It is a single unit on charge checking that slots into an existing HVACR course, an apprenticeship block or a new-hire week at a contracting company.
Browse the free resourcesAbout the instructor behind it
From an AC Service Tech viewer in the trade.
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Questions before you order
Is anything shipped?
No. This is a digital download and no shipping is charged. You receive access to the file after checkout.
What exactly is included?
A PowerPoint presentation on the basics of checking the refrigerant charge of an air conditioner. If you want the contents confirmed before ordering, email info@acservicetech.com.
How is this different from the refrigeration cycle presentations?
The cycle decks explain how the system works. This one is about the service task: checking whether the charge in an air conditioner is correct. They are sold separately and work well in sequence, cycle first.
Can I edit it to fit my course?
Yes. It is a PowerPoint file, so you can cut, reorder or add slides.
Does it replace the book?
No. The book carries the full procedures and the troubleshooting sequences; the deck is the classroom front end for one of those topics. Students still need the book for the detail.
I did not get my download link.
Check your spam folder and the email address on the order. If it still has not arrived, email info@acservicetech.com with your order number and we will resend access.
Still have a question? Email info@acservicetech.com and a person will answer.