NEW-2nd Edition- Refrigerant Charging & Service Procedures for Air Conditioning
Written in the order you do the job
Built on years in the trade and the classroom
Physical orders usually ship in 1-2 days
A refund if it is not for you
From the AC Service Tech channel
If it is not what you needed, tell us within 30 days for a refund. The terms are on the refund policy page.
The HVACR training brand behind the YouTube channel, the books and the HVAC Academy.
Now in stock. The 2nd Edition of Refrigerant Charging and Service Procedures for Air Conditioning by Craig Migliaccio, in paperback. Superheat, subcooling, airflow and the charging methods, written as steps you carry out on the unit rather than theory you read about it. Free shipping in the USA.
30-Day Money-Back Guarantee
If the book is not what you needed, tell us within 30 days for a refund. The terms are on the refund policy page.
Written by a licensed HVACR instructor
Craig Migliaccio holds an HVACR Master License and is licensed by the State of New Jersey to teach HVACR, Sheet Metal and Building Maintenance.
This is the book techs keep reaching for when the gauges are already on the unit. It does not stop at explaining what superheat is. It tells you where to take the reading, what the number should be for the metering device in front of you, and what to change when it is off.
The 2nd Edition is the updated one. It adds new tools, revised procedures and the A2L refrigerants, including R-32 and R-454B, so the charging and handling sections match what is arriving on jobs now.
The procedures covered include:
- Total Superheat and Subcooling, and which metering device each one belongs to
- The weigh-in charging method, including refrigerant per foot of line set
- Airflow checks, and why charging on top of an airflow problem never settles
- Recovery, evacuation and the vacuum procedure
- Leak detection and pressure testing
- A2L refrigerants: R-32 and R-454B, the tools and the handling
- Step-by-step charging sequences, and the readings that tell you where to stop
Free shipping within the USA. Orders normally leave within one to two business days. Returns are accepted within 30 days in resalable condition; see the refund policy page for the full terms.
Written in the order you do the work.
Craig taught HVACR to high school and adult students before any of this was a book, and he still runs an HVAC contracting business. Each procedure reads the way he taught it: measure, read, decide, then move. No chapter leaves you holding a number you cannot act on.
See what is in the bookUpdated for the A2L refrigerants.
R-32 and R-454B change the tools you reach for and the way you handle the cylinder, not just the pressure you expect to see. The 2nd Edition covers them alongside the existing refrigerants, so you are not cross-referencing a newer manual every time an A2L system turns up.
Read the charging proceduresA reference, not a one-time read.
Keep it in the truck next to the P/T Chart and the HVAC calculators. If you want to drill the material instead of only reading it, the companion workbook covers the same ground in question form.
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Questions before you order
Is this the 2nd Edition?
Yes. This is the 2nd Edition, which adds new tools, updated procedures and the A2L refrigerants including R-32 and R-454B.
Who wrote it?
Craig Migliaccio, owner of AC Service Tech LLC. He holds an HVACR Master License in New Jersey, is licensed by the state to teach HVACR, Sheet Metal and Building Maintenance, has over 16 years in the field and owns an HVAC contracting business.
Is this the paperback or the ebook?
This listing is the printed paperback, shipped to you. The same title is also sold as a digital download on its own listing.
Does the workbook come with it?
No. The companion workbook, with over 1,600 questions across six question types including image questions, is a separate listing.
I am new to the trade. Will I follow it?
Yes. Craig taught beginners for years, so the procedures start from the beginning and build. The troubleshooting sequences stay useful once you have time in the field.
How fast does it ship, and what if I need to return it?
Orders normally leave within one to two business days with free shipping inside the USA. If it is not what you needed, tell us within 30 days for a refund; the full terms are on the refund policy page.
Still have a question? Email info@acservicetech.com and a person will answer.