Lohmiller and Company

Res AC/HP Installation
2025-11-20 17:00 - 21:00 (America/Denver) | On-line
Class Description: The AC/HP Installation class covers installation practices for air conditioning and heat pump systems, including proper setup, system placement, and necessary connections. This class also includes A2L refrigerant practices, ensuring safe handling and compliance with industry standards. You will gain a thorough understanding of installation best practices to ensure reliable, efficient performance for both cooling and heating functions.
Who Should Attend: All Technician

Furnace Install
2025-11-19 17:00 - 21:00 | On-line
Class Description: The Furnace Installation class covers the essential practices for installing furnace systems, including proper setup, system connections, and required venting. Students will learn about safety protocols, efficient installation techniques, and best practices to ensure reliable and effective furnace operation.
Who Should Attend: All Technicians.

Ductless MU Line
2025-11-18 17:00 - 19:00 | On-line
Class Description: The Ductless MU Line class focuses on the installation, configuration, and maintenance of ductless systems, specifically covering models such as the 38MURA and 40MUAA, as well as conventional match-ups. Students will learn about system setup, connection methods, and configuration options for these models. The course will also cover best practices to ensure efficient and reliable operation.
Who Should Attend: All Technicians, Sales Professionals

Ductless Install
2025-11-17 17:00 - 21:00 | On-line
Class Description: The Ductless Install class covers the essential practices for installing ductless HVAC systems, including proper system placement, connections, and commissioning. Students will learn about best installation techniques, safety protocols, system setup, and compatibility between different ductless models to ensure efficient operation and long-term reliability.
Who Should Attend: All Technicians.

Ductless Advanced Service Night 2
2025-11-13 17:00 - 21:00 | On-line
Class Description: The Ductless Advanced Service class is a two-night course designed to provide technicians with advanced troubleshooting and service techniques for ductless HVAC systems. Students will learn to diagnose complex issues, interpret error codes, and effectively troubleshoot both electrical and mechanical components. The class covers advanced service practices for a range of ductless models, equipping technicians with the expertise to resolve challenging problems and ensure optimal system performance.
Who Should Attend: All Technicians

Ductless Advanced Service Night 1
2025-11-12 17:00 - 21:00 | On-line

Toshiba Carrier VRF Service Night 2
2025-11-11 17:00 - 21:00 | Carrier West Denver, 4800 Osage St, Denver, CO, 80221, United States
Class Description: The Toshiba Carrier VRF Service class is a two-night advanced course focused on servicing Toshiba Carrier VRF systems, known as 3-Pipe systems. Students will learn how to interpret error codes, diagnose faults, and troubleshoot common issues within these VRF systems. The class covers system operations, components, and best practices for maintaining and repairing these advanced systems. This course is designed for experienced technicians who are looking to expand their expertise in VRF technology.
Who Should Attend: Advanced Technicians working with VRF

Toshiba Carrier VRF Service Night 1
2025-11-10 17:00 - 21:00 | Carrier West Denver, 4800 Osage St, Denver, CO, 80221, United States

EPA Test
2025-11-06 17:00 - 21:00, 2025-10-16 17:00 - 21:00 | Carrier West Denver, 4800 Osage St, Denver, CO, 80221, United States
Class Description: EPA Testing Night
Time will be given for Core and Type I, II, and III (Universal)

Electrical Hands On Troubleshooting
2025-11-05 17:00 - 21:00 | Carrier West Denver, 4800 Osage St, Denver, CO, 80221, United States
Class Description: The Electrical Hands-On Troubleshooting class focuses entirely on hands-on learning for diagnosing and troubleshooting electrical issues in HVAC systems. Students will work with live equipment to identify and resolve common electrical failures, including wiring, circuits, and control problems. This course provides real-world troubleshooting scenarios and practical experience to help service technicians enhance their skills and confidence in electrical repairs.
Who Should Attend: All Service Technicians

NATE Test
2025-11-04 17:00 - 21:00, 2025-10-23 17:00 - 21:00, 2025-10-08 17:00 - 21:00 | Carrier West Denver, 4800 Osage St, Denver, CO, 80221, United States
Class Description: NATE Testing Night
Please request desired tests during registration. Select up to 2

Why Compressors Fail
2025-11-03 17:00 - 21:00 | Carrier West Denver, 4800 Osage St, Denver, CO, 80221, United States
Class Description: The Why Compressors Fail class focuses on understanding the common causes of compressor failures and how to prevent them. Students will learn about the factors that contribute to compressor failure, including improper installation, electrical issues, and system malfunctions. The class includes some hands-on experience, where students will work with dismantled compressor parts to identify and analyze common failure points. This course equips service technicians with the knowledge needed to troubleshoot and prevent compressor failures for longer-lasting HVAC systems.
Who Should Attend: All Service Technicians

Ductless Controls Night 2
2025-10-30 17:00 - 21:00 | On-line
Class Description: The Ductless Controls class is a two-night course focused on the various control options available for ductless HVAC systems. Students will explore ductless native controls, compatibility across different models, and 24V interface options for seamless integration with other systems. This class is designed to equip technicians with the knowledge needed to select and implement the right control solutions for optimal system performance.
Who Should Attend: All Technicians

Ductless Controls Night 1
2025-10-29 17:00 - 21:00 | On-line

AC/HP Hands-On Troubleshooting
2025-10-28 17:00 - 21:00 | Carrier West Denver, 4800 Osage St, Denver, CO, 80221, United States
Class Description: The AC/HP Hands-On Troubleshooting class focuses entirely on hands-on learning for diagnosing and troubleshooting air conditioning and heat pump units. Students will work with live equipment to identify and resolve common issues, including electrical and mechanical failures. This course provides real-world troubleshooting scenarios and practical experience to help service technicians enhance their skills and confidence in AC and heat pump repairs.
Who Should Attend: All Service Technicians.

Furnace Hands-On Troubleshooting
2025-10-27 17:00 - 21:00 | Carrier West Denver, 4800 Osage St, Denver, CO, 80221, United States
Class Description: The Furnace Hands-On Troubleshooting class focuses entirely on hands-on learning for diagnosing and troubleshooting furnaces. Students will work with live equipment to identify and resolve common issues, including electrical and mechanical failures. This course provides real-world troubleshooting scenarios and practical experience to help service technicians enhance their skills and confidence in furnace repairs.
Who Should Attend: All Service Technicians

Infinity/Evolution Controls
2025-10-22 17:00 - 21:00 | On-line
Class Description: The Infinity/Evolution Controls class is a two-night course focused on the advanced programming features of Infinity and Evolution control systems. Students will learn how to program and optimize these systems for maximum efficiency, explore their key functionalities, and understand the different control strategies available. This class will provide technicians with the skills to effectively manage programming tasks and enhance the performance of Infinity and Evolution systems.
Who Should Attend: All Technicians

Res AC/Heat Pumps Service Level 1 Night 2
2025-10-21 17:00 - 21:00 | On-line
Class Description: The AC/Heat Pump Service Level 1 class is a two-night course focused on essential service practices for air conditioning and heat pump systems, with material geared toward entry-level and legacy units. Students will learn key troubleshooting techniques, maintenance procedures, and common repairs for both AC and heat pump units. This class is designed to provide foundational knowledge and skills needed to effectively diagnose and maintain these systems for optimal performance.
Who Should Attend: All Service Technicians

Res AC/Heat Pumps Service Level 1 Night 1
2025-10-20 17:00 - 21:00 | On-line

Infinity/Evolution Zoning
2025-10-15 17:00 - 21:00 | On-line
Class Description: The Infinity/Evolution Zoning Systems class covers the installation, configuration, and operation of Infinity and Evolution zoning systems. Students will learn about the benefits of zoning, how to navigate the controls, and how to troubleshoot common issues. This class will help technicians understand how to optimize comfort and energy efficiency in residential applications using these advanced zoning systems.
Who Should Attend: All Residential Technicians.

Basic Electrical Night 4
2025-10-14 17:00 - 21:00 | Carrier West Denver, 4800 Osage St, Denver, CO, 80221, United States
Class Description: The Basic Electrical class is a four-night course designed to cover the foundational electrical concepts essential for HVAC applications. Students will learn about electrical theory, circuit components, wiring, and how electricity powers HVAC systems. The class will also focus on understanding voltage, current, resistance, and Ohm’s Law, as well as safe practices for working with electrical systems in HVAC settings.
Who Should Attend: Entry-level Technicians, Technicians desiring refresher

Basic Electrical Night 3
2025-10-13 17:00 - 21:00 | Carrier West Denver, 4800 Osage St, Denver, CO, 80221, United States

RTU Economizers
2025-10-09 17:00 - 21:00 | Carrier West Denver, 4800 Osage St, Denver, CO, 80221, United States
Class Description: The RTU Economizers class focuses on the installation, operation, and maintenance of economizer systems in rooftop units (RTUs). Economizers are one of the most misunderstood components in HVAC, and this course will help clarify their function and importance. Students will learn how economizers improve energy efficiency, how to navigate recently used controls, and how to apply control strategies to optimize RTU performance in commercial HVAC applications.
Who Should Attend: All Commercial Technicians, Residential Technicians working with fresh air requirements

Basic Electrical Night 2
2025-10-07 17:00 - 21:00 | Carrier West Denver, 4800 Osage St, Denver, CO, 80221, United States

Basic Electrical Night 1
2025-10-06 17:00 - 21:00 | Carrier West Denver, 4800 Osage St, Denver, CO, 80221, United States

Furnace Service Level 1 Night 2
2025-10-02 17:00 - 21:00 | On-line
Class Description: The Furnace Service Level 1 class is a two-night course designed to cover entry level and legacy furnace service practices, including troubleshooting, maintenance, and basic repairs. Students will learn about furnace components, safety protocols, and common issues, with a focus on service techniques and problem avoidance to ensure efficient furnace operation and long-term reliability.
Who Should Attend: Service Technicians.

Furnace Service Level 1 Night 1
2025-10-01 17:00 - 21:00 | On-line
