Mini Split Training: The Field Manual for Ductless Heat Pumps: Components, Troubleshooting, Testing, Maintenance, Sizing & Installation

By James T. Fuller

The hands-on mini split manual for people who actually work on the equipment. Ductless mini splits are everywhere now - and they don't work like the systems most techs trained on. Inverter-driven compressors, electronic expansion valves, communicating boards, and a rack of sensors mean the old habits won't diagnose them. Mini Split Training: The Field Manual closes that gap. It's written by a licensed mechanical contractor with 20 years in the field and 250,000+ subscribers on YouTube. Inside you'll find: - Every major component - outdoor and indoor - with a photo, a plain explanation of what it does and how it works, the failure symptoms to watch for, the tools to check it, and the exact procedure to test it. - A complete field-diagnostic sequence: what to check and in what order, with target pressures, line temperatures, superheat/subcooling, and temperature-split ranges. - Bench-level testing with the real resistances and readings that prove each part good or bad - compressors, fan motors (both 3-wire and smart types), EEVs, reversing valves, boards, and sensors. - Maintenance and cleaning done right: the annual deep clean, wash bags and coil guns, four-way cassette and condensate-pump service, and clearing the drain. - Sizing and BTU guidance for real rooms, plus installation and placement - clearances, mounting, electrical protection, and condensate. Whether you're a green tech learning ductless for the first time, a seasoned pro adding it to your truck, or a serious DIYer installing your own system, this manual gives you the answers in the field - not buried in a manufacturer PDF. From James T. Fuller, licensed General Mechanical Contractor and creator of the Taddy Digest YouTube channel. The print companion to the full video course at minisplittraining.com.

• Format: Paperback
• Language: English
• ISBN: B0HMFFB6FZ
• ISBN13: 9798176357837
• Release Date: October 2026
• Publisher: Independently Published
• Length: 108 Pages
• Weight: 0.81 lbs.
• Dimensions: 0.3" x 8.5" x 11.0"