TABLE OF CONTENTS
SECTION ONE: REFRIGERATION FUNDAMENTALS
Unit 1 Heat Energy……………………
Radiation… Conduction… Convection… The British
Thermal Unit… Understanding Sensible & Latent Heat
Unit 2 Refrigeration System Components and
Accessories ………………………
Compressors… Condensers… Evaporators… Metering
Devices… Filter Driers… Heat Exchangers….Suction
Line Accumulators… Liquid Line Receivers
Unit 3 The Refrigeration Cycle……………
Simplified Refrigeration system… Refrigerant Temperature
& Pressure… High Pressure and Low Pressure In Refrigeration
Systems… Purpose of Evacuation In Refrigeration Systems
Unit 4 Superheat & Subcooling…………….
The 70-Pound Rule… The 30- Degree Rule… Refrigerants and
Oils, Comparing R-22 & R-410A… Refrigerant Flammability
and Toxicity... Simplifying Superheat In Refrigeration
Systems… Questions and Answers About Superheat…
Employing Superheat In A Diagnosis… Manufacturer’s
Charging Charts… Evaporator Superheat…. Total Superheat In
A Refrigeration System… Discharge Superheat… Subcooling
In Refrigeration systems… Fundamental Diagnostics Related To
Refrigeration System Pressures
Unit 5 Evacuation and Dehydration………….
Vacuum and Pressure… Microns & Micron Gauges… Vacuum
Pump Maintenance & Operation
Unit 6 Accessing Refrigeration Systems For
Refrigerant Recovery & Evacuation…..
Accessing Small Refrigeration Systems… Schrader Valves…
Schrader Valve Core Removal Tools… Quick Connect
Fittings… Compressor Mounted Access Valves… Liquid First
Refrigerant Recovery Procedures… Manifold Gauge Set
Fundamentals… Refrigerant Recovery Drum Safety…
Push/Pull Refrigerant Recovery… Non-Condensable Materials
and Contaminants… Cooling A Recovery Tank… System
Evacuation & Removing Moisture
SECTION TWO: AIR FLOW & HVACR EQUIPMENT
EVALUATION
Unit 7 Properties of Air & Fundamental Air Flow
Measurements……………………….
Air Density & Specific Heat…. The 1.08 and 4.5 Multiplier
Factors…. Air Flow Measurement: CFM & FPM….
Using FPM To Calculate CFM…. Air Flow Calculations & Load
Estimating
Unit 8 Psychrometric Principles…………….
Fundamentals of Psychrometrics, DB WB & RH…. Structure of
the Psychrometric Chart…. Calculating RH & Wet Bulb
Depression…. Dew Point…. Common Properties of Air
Formulas….
Unit 9 Supply & Return Air System
Fundamentals.………………………
Air Flow & TD Through A Free Blowing DX Coil…. Air Flow
Through A Forced Air Condenser…. Air Flow Fundamentals of
Ducted Systems…. Supply Duct Systems & TEL…. Return
Duct Systems & TEL
Unit 10 HVACR System Air Flow System
Evaluation……………………………
Supply Air Flow Configurations…. Return Air Flow….
Manufacturer’s Blower Performance Data…. Static Pressure
Testing…. Dry Bulb & Wet Bulb Temperature
Measurements…. Temperature Split…. Blower Door
Testing…. Duct Leakage Testing….
Appendix A Troubleshooting Problems………..