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HVAC Technician

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The first course will teach about the function of electrical controls, the interpretation of electrical diagrams and symbols, and the use of instruments for electrical troubleshooting procedures.

Preparation for EPA Section 608 Certification

Important:
Preparation for the EPA Section 608 certification exam is included as part of the academic program. However, the examination and certification are not included in the course price, as they are administered by an approved third-party testing organization in accordance with the guidelines of the independent certifying organization approved by the EPA.

For this reason, each exam attempt requires an additional fee, which covers the costs associated with exam registration, remote proctoring, and administrative processing related to the external evaluation.

Learning Trade Center of Florida does not administer the examination, does not act as a testing center, and does not issue the EPA Section 608 certification.

Students receive academic preparation to sit for the EPA Section 608 exam, which is administered independently by an authorized third-party entity.

HVAC Technician Combo: $297

Includes the HVAC Technician course, the Safe Handling of A2L Refrigerants course, the printed certificate with shipping, and registration for your first official EPA 608 exam attempt, taken online with a certifying organization directly approved by the EPA.

(Included only with Combo HVAC Technician purchases at $297 made on or after September 10, 2026)

See the HVAC Technician Combo — $297

Module 1 — Basic fundamentals of electricity

Lessons

Electrical Energy Preview Atomic Structure Preview Structure of matter Electron Movement Electrical Current Types of Current Ohm’s Law Voltage Potential Difference Amperage Resistance Electrical Load Types of Circuits Checking Circuits with the Multimeter Electrical Power Reading and Interpreting Electrical Diagrams Electrical Control Components Understanding Electrical Circuits Pictorial Diagrams Module 1 Quiz

Module 2 — Residential electrical distribution

Lessons

Electrical Safety Preview Electrical Distribution Module 2 Quiz

Module 3 — Fundamentals of electrical installation

Lessons

Electrical Installation Electrical Power Source Electrical Materials Wire Sizes Conductor Dimensions Insulated Wires Module 3 Quiz

Module 4 — Introduction to electrical controls

Lessons

Electrical Controls Primary Controls Mechanical Reaction of Switch Contacts Single Phase Contactors Mechanical Reaction of Contacts and Switches Relays Fan Relay Relay Function Time Delay Switches Secondary Controls Circuit Protection Fuses Fuse Holders Breakers High Pressure Switch Low Pressure Switch Float Switch Fusible Links or Micro-Temp Timers Limits Sail Switch Heater Protector Heat and Cool Only Thermostats Thermostat Sub-Base Thermostat Layers Heat Anticipator Module 4 Quiz

Module 5 — Fundamentals of refrigeration

Lessons

Understanding Heat Preview What is British Thermal Unit (BTU)? Specific Heat BTU Specific Latent Heat Application in Everyday Life Physical States of Matter Atoms and Molecules Changes of Physical States of Matter Latent Heat Latent Heat Substance Changes Sensible Heat Boiling and Condensing Point Superheat and Sub-cool Compression Cycle of the Refrigerant Module 5 Quiz

Module 6 — Refrigeration cycle and component function

Lessons

Basic Refrigeration Cycle Condition of Refrigerant in the Refrigeration Cycle Condition of Refrigerant in Each Component Evaporator Saturation and Temperature Condition in the Evaporator Suction Line Compressor Reciprocating Compressor Rotary Compressor Scroll Compressor Screw Compressor Centrifugal Compressor Discharge Line or Hot Gas Line Condenser Condenser Fan Motor Liquid Receiver Liquid Line Metering Devices for Refrigerant Capillary Tube – Fixed Type Accurator (Piston) – Fixed Type Solenoid Valve Oil Separator Heat Exchanger Suction Line Accumulator Refrigerant Sight Glass Module 6 Quiz

Module 7 — Filter dryers

Lessons

Filter Dryers Chemicals in a Cooling System How Do You Select Filter Dryers? Module 7 Quiz

Module 8 — Access valves

Lessons

Access Valves Three Position Service Valve Back Seated Position Mid-Seated Position Front Seated Position Two Position Service Valve (Front-Seated Only) Piercing Valve Low Loss Valve Access Valve with Schrader Valve (Core Valve) Core Removal Tools of the Schrader Valve Process Valve Module 8 Quiz

Module 9 — Manifold pressure gauges

Lessons

Manifold Pressure Gauges Pressure Classification Pressure Measurement Pressure Temperature Chart (T/P) Pressure Gauges Service Hose Operational Positions for Refrigerant Manifold Gauges Handling the Refrigerants Manifol A – Measuring Pressure (Unit Running) B – Evacuation (System Off) C – Charging Vapor (Unit Running) D – Charging Vapor (Unit Running) E – Charging Liquid (System Off) F – Recovery of Liquid (System Off) G – Recovery of Liquid/Vapor (Sys H – Nitrogen Pressurization (Syst I – Flushing the System (System Off) J – Adding Oil to Compressor (Unit Running) Module 9 Quiz

Module 10 — Refrigerants and oils

Lessons

What is Refrigerant? Chemical Structure of Refrigerant Halide Refrigerants Azeotropics Blends Refrigerant Application Safety Precautions for Refrigeran Refrigerant Oils Types of Refrigerant Oils Module 10 Quiz

Module 11 — Evacuation and pressurization

Lessons

Removal of Moisture in a System Nitrogen Nitrogen Regulator Leak Detection and Verification Nitrogen Pressurization Evacuation (Vacuum Process) Vacuum Pumps Electronic Vacuum Gauge Purging with Nitrogen While Brazing Module 11 Quiz

Module 12 — Recovery

Lessons

Recovery Instruments & Components for Recovery Refrigerant Bottle & Recovery Cylinders Process of Recovery Disposable Cylinders Module 12 Quiz

Module 13 — Technical and mechanical service procedures

Lessons

What is Superheat? What is Sub-Cooling?

Module 14 — EPA 608: introduction

Lessons

What EPA 608 certification is and who it applies to The four certifications The real exam format & How and where to take the exam What the 608 does not cover & The regulatory map in 2026 Test-taking strategy Module 1 Quiz: Introduction

Module 15 — EPA 608: Core

Lessons

The stratosphere and the ozone layer How chlorine destroys ozone & Effects of ozone depletion ODP: ozone depletion potential GWP: global warming potential The refrigerant families How to read the R number Blends: azeotropic, near-azeotropic and zeotropic Glide, bubble point and dew point & Fractionation and liquid charging The oils ASHRAE 34 safety and cylinder marking The Clean Air Act and Section 608 The Montreal Protocol The phaseout calendar The venting prohibition Exempt substitutes and the SNAP program The sales restriction in detail Leak repair under Section 608 The AIM Act and the ER&R rule Technology Transitions and the GWP limits Records and reports Penalties and enforcement Reclamation, certified equipment and safe disposal The three Rs The two types of recovery equipment Equipment certification and the 1993 date Required evacuation levels Small appliances: 80 and 90 percent Exceptions to evacuation How to speed up recovery Do not mix refrigerants Dehydration and vacuum Recovery cylinders & The 80 percent rule Disposable cylinders Nitrogen for leak testing Personal safety, machinery room and transport Module 2 Quiz: Core

Module 16 — EPA 608: Type I

Lessons

What legally counts as a small appliance What they look like inside Recovery requirements Recovery with a working compressor Recovery with an inoperative compressor Access valves: the piercing valve Low-loss fittings Saturation point and the P/T chart Identifying the refrigerant with the P/T chart Detecting non-condensable gases R-12 and its substitute Acid in the system and the acid test Type I safety: decomposition products and daily hazards Small appliances with flammable refrigerants Module 5 bilingual glossary Module 3 Quiz: Type I

Module 17 — EPA 608: Type II

Lessons

What Type II covers Components and the state of the refrigerant Determining the system charge Signs of a leak in high-pressure systems Detection methods and instruments Pressure testing with nitrogen Leak repair applied to Type II Leak repair records Major and non-major repairs Evacuation in Type II Recovery techniques and cross-contamination Line accessories Evacuating the system before charging Charging with the pressure-temperature chart Type II safety Appendix (A2L): Two laws, two different problems Appendix (A2L): The three fronts of the AIM Act Appendix (A2L): What A2L refrigerants are Appendix (A2L): What changes on the job Appendix (A2L): What to tell the customer Module 4 Quiz: Type II Appendix (A2L) Quiz: AIM Act and A2L refrigerants

Module 18 — EPA 608: Type III

Lessons

What a low-pressure appliance is Inside the centrifugal chiller The purge unit Leak detection and the order of preference The maximum test pressure Leak repair in Type III Recovery on low-pressure appliances Evacuation, major and non-major repairs Recharging the chiller Oil and safety Module 7 bilingual glossary Module 5 Quiz: Type III How to use the practice tests Practice Test 1 — Core Section Practice Test 2 — Type I Section Practice Test 3 — Type II Section Practice Test 4 — Type III Section The final exam Final Exam — Core Section Final Exam — Type I Section Final Exam — Type II Section Final Exam — Type III Section
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