If you're working with refrigerants, EPA 608 certification isn't just a good idea — it's the law. 

What's Included:

• Study guide: Pick up your study guide at your local Corken Steel branch before class — we recommend grabbing it early so you have plenty of time to prepare. Give us a call before making a special trip!
  • Additional Prep Resources: Supplemental study guides and practice tests are also available through Amazon, major retailers, and free online resources such as GoTestPrep.com.
• In-person review of exam content 
• Certification exam

Certification Categories:

Candidates for this exam can be certified in any of three equipment categories plus Universal:

• Core — General knowledge required to pass before any type certification can be awarded
• Type 1 — Small appliances such as PTACs and window A/C units
• Type 2 — High-pressure refrigerant equipment such as residential A/C and heat pumps
• Type 3 — Low-pressure refrigerant equipment such as chillers
• Universal — Awarded to candidates who pass all three Types plus Core

Who Should Attend: Any HVAC technician who handles refrigerants and needs to become certified — or anyone looking to upgrade their current certification level. This is one of the most essential credentials in the trade.

Note: Additional tests and retests are available for an additional charge.

Inverter technology is changing the game — and this class will make sure you're ready for it. From installation to controls to the latest on 454b, we're covering everything you need to work confidently on the systems that are becoming the new standard.

This class will cover:
• New inverter A/C and heat pump systems
• Proper installation and service procedures
• New controls used in inverter units
• 454b review and updates

Login instructions will be emailed prior to class

Inverter technology is changing the game — and this class will make sure you're ready for it. From installation to controls to the latest on 454b, we're covering everything you need to work confidently on the systems that are becoming the new standard.

This class will cover:
• New inverter A/C and heat pump systems
• Proper installation and service procedures
• New controls used in inverter units
• 454b review and updates

Login instructions will be emailed

Class approved for 4 CE hours KY Masters/Journeyman, 4 CE hours OH, 4 CE hours Vanderburg Co, IN Masters, and NATE CE hours. Per state rules, repeat courses do not qualify for accumulative credits. Each class must be unique. i.e. Taking (2) Heat Pump Classes only qualifies for 4 CE hours total, whereas (1) Inverter Technology Class & (1) Heat Pump Class = 8 CE hours

Who Should Attend: Employees and subcontractors of LG Representatives and Distribution Partners who will be performing field installations of LG ductless systems.

Course Overview – What You'll Learn: This training covers manufacturer guidelines for installing piping and wiring systems associated with LG Duct-Free Split (DFS) indoor and outdoor air conditioning units.

How You'll Learn: The session begins with a brief introduction to LG inverter technology, followed by detailed instruction on system installation — with a strong emphasis on piping and control wiring best practices. Content will be delivered through PowerPoint presentations, group discussions, and hands-on lab activities. In the lab, participants will be introduced to LGMV Mobile, LG's performance evaluation tool used to assess system operation prior to startup. Charging procedures and pre-commissioning tasks will also be covered.

Prerequisites:

• Advanced technical knowledge of residential A/C, heat pump, and air distribution systems
• Basic proficiency in Microsoft Office, including Excel, PowerPoint, and Word prefered but not required

What to Bring:

• A laptop or PC with a web browser
• Participants who wish to have LGMV installed on their device should verify that their system meets compatibility requirements prior to class

Registration: Participants must register at https://lghvac.com/training/  to receive LG Pro Dealer credit and a certificate of completion.

Extras: Refreshments and lunch will be provided.

CE Credits: This class is approved for 4 CE hours in the following categories: KY Masters/Journeyman, OH, Vanderburgh Co. IN Masters, and NATE. Per state rules, repeat courses do not qualify for additional credit — each class must be unique. For example, two Heat Pump classes count as 4 CE hours total, while one Inverter Technology class and one Heat Pump class together equal 8 CE hours.

Who Should Attend: Employees and subcontractors of LG Representatives and Distribution Partners who will be servicing and repairing LG ductless air conditioning systems.

Course Overview – What You'll Learn: This course provides an in-depth look at the key components of LG ductless systems, including PCBs, EEVs, BLDC motors, compressors, and more. Students will gain a modular-level understanding of how each component contributes to proper system operation, including how indoor and outdoor electrical connections interact. The course also includes hands-on guidance for accessing major components and performing essential service and maintenance tasks.

How You'll Learn: Training combines classroom instruction with hands-on exercises using live LG equipment in the lab. Students will follow a step-by-step troubleshooting process and use LGMV Mobile, LG's performance and diagnostic tool, to evaluate and resolve real-time equipment issues.

Prerequisites:

• Advanced technical knowledge of residential A/C, heat pump, and air distribution systems
• Basic proficiency in Microsoft Office, including Excel, PowerPoint, and Word prefered

LGMV Note: Students interested in using the LGMV PC version should contact Corken to obtain an LGMV kit.

What to Bring:

• A laptop or PC with a web browser
• Students who wish to have LGMV installed on their device should verify compatibility in advance

Registration: Participants must register at https://lghvac.com/training/ to receive LG Pro Dealer credit and a certificate of completion.

Extras: Refreshments and lunch will be provided.

CE Credits: This class is approved for 4 CE hours in the following categories: KY Masters/Journeyman, OH, Vanderburgh Co. IN Masters, and NATE. Per state rules, repeat courses do not qualify for additional credit — each class must be unique. For example, two Heat Pump classes count as 4 CE hours total, while one Inverter Technology class and one Heat Pump class together equal 8 CE hours.

Take the guesswork out of inverter heat pump systems. This two-hour session walks technicians and installers through the full lifecycle of an inverter air-to-air heat pump — from selecting and matching the right equipment to commissioning a properly running system. You'll leave with the practical knowledge to install, charge, and troubleshoot these systems with confidence.

What You'll Learn

• Equipment fundamentals — outdoor units, air handlers, coils, size changing, match-ups, and efficiency
• Outdoor unit installation, including menu navigation and key menu functions
• System charging, coil temperature selections, and dip switch configuration
• High-voltage considerations, intelligent diagnostics, and surge protection recommendations
• Line set limitations (length and diameter), intelligent oil return, and reusing existing line sets
• A complete system start-up checklist — coil, air handler, and outdoor unit checks, plus required clearances
• A full review to tie everything together

Who Should Take This Class

This class is ideal for HVAC technicians and installers who work with — or are preparing to work with — inverter air-to-air heat pump systems. Whether you're new to inverter technology and want a solid foundation, or you're an experienced tech looking to sharpen your installation, charging, and troubleshooting skills, you'll find practical, job-ready takeaways.

Refreshments will be provided.

Please note: This class does not offer continuing education (CE) hours. 

A well-tuned furnace is a thing of beauty — and this class will give you the knowledge to do it right. From traditional gas furnace service to the latest communicating systems and variable speed motors, we're covering it all.

This class covers:

• Service and installation of gas furnaces
• The new communicating furnaces and variable speed motors
• Setting up variable speed furnaces for maximum efficiency.
• 454B review and updates

You will receive login instructions upon sign up via email.

A well-tuned furnace is a thing of beauty — and this class will give you the knowledge to do it right. From traditional gas furnace service to the latest communicating systems and variable speed motors, we're covering it all.

This class covers:
• Service and installation of gas furnaces
• The new communicating furnaces and variable speed motors
• Setting up variable speed furnaces for maximum efficiency.
• 454b review and updates

You will receive login instructions upon sign up via email.

Class approved for 4 CE hours KY Masters/Journeyman, 4 CE hours OH, 4 CE hours Vanderburg Co, IN Masters, and NATE CE hours. Per state rules, repeat courses do not qualify for accumulative credits. Each class must be unique. i.e. Taking (2) Heat Pump Classes only qualifies for 4 CE hours total, whereas (1) Inverter Technology Class & (1) Heat Pump Class = 8 CE hours