Overview

Refrigerant Charging and Service Procedures for Air Conditioning by Poe Eden Become the tech everyone trusts. This beginner-friendly field guide walks you, step by step, through safe refrigerant handling, accurate charging, and reliable diagnostics-so every service call ends with a system that performs to spec. What you'll learn inside Safety & handling: PPE, cylinder use, hose management, recovery, evacuation, and leak-prevention best practices. Tools that matter: manifold and digital gauges, temperature probes, scales, micron gauges, vacuum pumps, recovery machines, and leak detectors-plus how to use them correctly. Charging done right: pressure-temperature basics, weighing in a charge, superheat and subcooling methods, targets for TXV vs. fixed-orifice systems, and verifying airflow before charging. Diagnostics you can trust: reading suction/head pressures, spotting non-condensables, icing, restrictions, short cycling, compressor faults, and electrical or airflow issues-with quick decision trees. Service procedures & maintenance: deep vacuum to target microns, nitrogen pressure testing, filter-drier and line-set practices, moisture/acid mitigation, and documentation checklists. Free video tutorial included Scan the QR code inside (or use the link provided) to access a concise video series demonstrating the book's core procedures-gauging, evacuation, charging by SH/SC, and common fault diagnosis-so you can see each step before you do it. Who it's for Apprentices, facility maintenance teams, HVAC students, and new technicians who want clear, repeatable processes backed by practical checklists and reference tables.

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