Stop Guessing: HVAC Fundamentals for Beginners — Volume 2
By Roberto M. Morales
Miami HVAC contractor · 20+ years in the field
Tools, Components, Refrigerant Charging Basics, Airflow, Electrical Basics & Installation Awareness
Work through static pressure, temperature split and superheat calculations before interpreting system readings.
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Tools, Components, Refrigerant Charging Basics, Airflow, Electrical Basics & Installation Awareness
By Roberto M. Morales
Volume 2 introduces the tools, components, and hands-on basics every new technician needs — refrigerant charging basics, airflow, electrical basics, and installation awareness.
Volume 2 of 5 — read after Volume 1.
Volume 2 covers HVAC tools and components for beginners, plus refrigerant charging basics, airflow fundamentals, electrical basics and installation awareness.
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Full rotation of the printed edition followed by a walk-through of real interior pages.
Written by Roberto M. Morales
20+ years of real HVAC field experience
Step-by-step HVAC diagnostic system
Covers airflow, refrigerant, electrical & compressor
Practical field guide for HVAC technicians
Every item below is covered directly in the book.
Core HVAC tools every beginner should know
Major system components and what they do
Refrigerant charging basics — safely
Airflow fundamentals in the field
Electrical basics without the fear
Installation awareness from day one
Photorealistic studio shots of the printed edition — front cover, 3/4 front, 3/4 back, side profile and top-down. Click any view to enlarge.
Real pages from inside the book. Click any page to enlarge and zoom for full readability. Use ← → arrows or swipe to navigate.
Every chapter is shaped by real service calls — not classroom theory.
Written by a working HVAC company owner in Miami — not a lecturer.
Every diagnostic pattern comes from real jobs on real equipment.
Structured to meet you where you are and take you further.
Clear language, real numbers, and steps you can use on the next call.
One consistent method used across the full HVAC catalog.
Skills that hold up whether you're new to the trade or building a business.
Reader reviews will appear here once the first approved review is published.
Roberto M. Morales is the owner of an HVAC company in Miami and an author with more than 20 years of hands-on experience in the field. His work focuses on turning real service-call knowledge into clear, structured systems that technicians can actually use — on the roof, in the attic, and at the electrical panel.
This book is part of a growing catalog spanning HVAC professional and beginner titles, homeowner guides, romance, artificial intelligence, children's books, and Spanish editions.
Written by an HVAC contractor with decades of real field experience, where every lesson comes from diagnosing and solving actual HVAC service problems—not just classroom theory.
The methods and techniques in these books come from decades of real HVAC field experience—diagnosing real problems, finding their causes, and applying solutions that work in the field.
Complex HVAC concepts explained in simple, clear language — HVAC training books that apprentices and experienced technicians can understand quickly.
Every troubleshooting method comes from actual service work, helping readers diagnose HVAC problems faster and with greater confidence.
No unnecessary theory. Every chapter reads like an HVAC technician field guide, focused on practical procedures you can follow on the job.
Hundreds of carefully designed illustrations, measurements, diagnostic charts, and visual examples make learning faster and easier.
Practical HVAC reference books technicians can keep nearby and consult whenever they encounter a difficult system.
Every new edition incorporates reader feedback, new field experience, and additional explanations so each book becomes even more valuable over time.
Thousands of pages of practical HVAC instruction across multiple professional books, designed to help technicians diagnose problems faster, understand systems more clearly, and build confidence on every service call.
“Our goal is simple: Help technicians solve HVAC problems faster, understand systems more clearly, and become more confident on every service call.”
Don’t just buy another HVAC book. Invest in a practical HVAC field reference you’ll use for years on real service calls.
Explore the complete Roberto M. Morales HVAC collection below.
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Related HVAC books
Volume 1 of the Stop Guessing HVAC series gives new students, helpers, apprentices, and future technicians a clear foundation before they jump into troubleshooting, refrigerant readings, and electrical diagnosis.
View Stop Guessing: HVAC Fundamentals for Beginners — Volume 1 AvailableVolume 3 moves the beginner into real field work — maintenance, troubleshooting, diagnostics, refrigerant readings, and the habits that separate a helper from a technician.
View Stop Guessing: HVAC Fundamentals for Beginners — Volume 3 AvailableVolume 4 covers the safety, compliance, and quality knowledge a modern HVAC beginner must have — A2L refrigerants, EPA basics, codes, permits, and manufacturer instructions.
View Stop Guessing: HVAC Fundamentals for Beginners — Volume 4Follow the five volumes in order — each one builds on the one before it.
Answer two quick questions about your experience level and the work you do, and Roberto's AI Concierge will point you to the right title — and the right format — before you spend a dollar.
Volume 1 of the Stop Guessing HVAC series gives new students, helpers, apprentices, and future technicians a clear foundation before they jump into troubleshooting, refrigerant readings, and electrical diagnosis.
Next bookVolume 3 moves the beginner into real field work — maintenance, troubleshooting, diagnostics, refrigerant readings, and the habits that separate a helper from a technician.
Recommended by the author
Why this book matters
Volume 2 introduces the tools, components, and hands-on basics every new technician needs — refrigerant charging basics, airflow, electrical basics, and installation awareness.
What you can learn
Chapter 15 — Static Pressure Made Simple · PDF page 288 (printed p. 271)
Gives beginners a concrete, repeatable formula and real numbers for judging duct-system resistance, a core airflow diagnostic skill introduced before refrigerant topics.
Chapter 16 — Temperature Split and Airflow Clues · PDF page 303 (printed p. 286)
Learn the return-minus-supply temperature calculation and how the book relates that measurement to airflow and heat transfer.
Chapter 20 — Superheat Made Simple · PDF page 371 (printed p. 354)
Walks beginners through their first full refrigerant-charge diagnostic calculation, a foundational skill for later fixed-orifice charging chapters.
Shows a worked numeric example for Total External Static Pressure (TESP): a +0.35 in. w.c. supply reading added (by absolute value) to a negative return reading, explaining why technicians sum magnitudes rather than signed values.
Defines temperature split (return minus supply air temperature) and applies it to a sample reading of 75°F return vs. 56°F supply, yielding a 19°F split used as a quick airflow/heat-transfer health check.
Demonstrates the superheat formula (actual suction line temperature minus saturated suction temperature) with concrete numbers (55°F and 40°F) to produce a 15°F superheat reading, then explains what that value means for refrigerant state.
Explore a topic · real examples from the book
Chapter 15 — Static Pressure Made Simple · PDF page 288 (printed p. 271)
“Supply static pressure: +0.35 in. w.c. Return static pressure: -0.25 in. w.c. Total external static pressure: 0.60 in. w.c.”
Educational material. Follow manufacturer instructions and applicable safety requirements. No result is guaranteed.
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