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In this conversation, we’re talking about the transition to A2L refrigerants with Danilo Gualbino, South American Sales Manager with Honeywell. Danielo shares insights from his experiences at various companies like Honeywell and Copeland, specifically the common challenges faced by technicians and contractors, and tips to help technicians prepare for these changes. We also discuss the differences in standards and practices globally, the significance of training for safe implementation and specific requirements for working with A2L refrigerants. This episode was recorded live at the 2025 AHR Expo.

In this episode, we cover:

-Refrigeration industry transitions

-Differing global standards in refrigeration 

-Retrofits and new installations

-Refrigerant glides

-Compressor types

-Balancing efficiency and maintenance

-Challenges and successes with A2L systems

-Mitigation practices and leak detection

Helpful Links & Resources:

Danilo on LinkedIn

Honeywell website

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In this conversation, we’re talking about high ambient strategies for CO2 systems and how proper implementation can help refrigeration porfessionals save customers money. Specifically, this episode covers 3 main strategies: parallel compression, adiabatic gas coolers and ejectors, as well as the importance of customized, location-specific design and implementation. This episode was recorded live as part of a presentation at the 2025 AHR Expo.

In this episode, we cover:

-CO2 high mmbient strategy overview

-Global regulations and CO2 implementation

-Understanding flash gas in CO2 systems

-Parallel compression

-Adiabatic gas coolers

-Ejectors

-Case Study: flash Gas Bypass vs. Parallel Compression vs. Ejectors

-Future of CO2 refrigeration systems

Helpful Links & Resources:

Episode 7. High Ambient Strategies for CO2 Refrigeration with Andre Patenaude

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This conversation is an introduction to HB Products sensors with International Sales Manager, Rooba Sivagnanam and Product Manager, Henrik Kudsk. For technicians who are seeing more and more of these sensors in the field, we’ll break down the latest advancements in their capacitive sensors, vapor quality sensors and defrost sensors. We also talk about some innovative ways this Denmark-based company is making refrigeration systems more efficient and environmentally friendly. 

In this episode, we cover:

-Understanding capacitance sensors

-Transitioning from technician to sales

-Sensor installation

-Vapor quality sensors

-Temperature and capacitance

-Selecting the correct sensor

-Sensors for CO2 systems

-Sensors for secondary CO2 systems

-Condensation issues in sensors

-Importance of manuals and troubleshooting

-Transition to natural refrigerants

-Innovations in wafer sensor technology

-Defrost strategies and energy efficiency

-Tips for new technicians

Helpful Links & Resources:

Website: HB Products

HB Products YouTube Channel

Rooba on LinkedIn

Henrik on LinkedIn

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Learn more about Refrigeration Mentor Customized Technical Training Programs at www.refrigerationmentor.com/courses

This conversation is all about heat reclaim strategies with Andre Patenaude,  Director of Solution Strategy at Copeland, and Trevor Jones, Mechanical Engineer at Henderson Engineers Inc., Andre and Trevor break down data and research around various aspects of heat reclaim for retail spaces, particularly as it pertains to CO2 refrigeration, decarbonization and environmental impact. We cover the efficiency benefits of CO2 systems, the importance of tailored solutions for different locations, and important tips for refrigeration technicians to help effectively understand and maximize heat reclaim. 

In this episode, we discuss:

-Importance of heat reclaim in CO2 systems

-Energy efficiency and CO2 systems

-Space heating systems

-Understanding heat reclaim in supermarkets

-Efficiency in modern buildings

-Heat reclaim systems: supermarket vs. hypermarket

-Energy use and heat reclaim efficiency

-CO2 vs. R448: heat reclaim comparison

-The importance of high-quality heat

-Refrigerant leak rates

Helpful Links & Resources:

Study: Optimizing Operational Carbon: Reclaiming Heat From Refrigeration Systems For Space Heating

Episode 267. CO2 Experts Live: Understanding and Troubleshooting Copeland iPro HPV with Andre Patenaude

Episode 168: From Conventional to Cutting-Edge: Contractor Essentials When Transitioning To CO2 Transcritical Booster Systems w/ Andre Patenaude Copeland

Episode 007: High Ambient Strategies for CO2 Refrigeration with Andre Patenaude

Copeland E360 Platform

Copeland Website 

Andre Patenaude on LinkedIn

Trevor Jones on LinkedIn

Henderson Engineers Website

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In this episode of CO2 Experts, we’re covering installation and troubleshooting Carel ejectors with Marcel Nishimori. Marcel covers the key aspects of ejector functionality, installation tips, troubleshooting techniques, and design considerations specific to varying climate conditions. Marcel also shares some practical lessons for refrigeration technicians for ensuring longevity and efficiency in CO2 systems.

In this episode, we cover:

-Understanding ejectors

-Ejector technology

-Ejector installation and operation

-Control systems and efficiency

-Compressor control logics

-Managing pressure in different conditions

-Winter vs. summer operations

-Ejector maintenance

-Ejector control methods

-Troubleshooting and best practices

Helpful Links & Resources:

Episode 136. Exploring the Technical Aspects of the Toshiba Twin Rotary CO2 Compressors with Guest Marcel Nishimori

Episode 58: CO2 High Pressure Valves, Flash Gas Bypass and Ejectors controlled by a pRack300T

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Learn more about Refrigeration Mentor Customized Technical Training Programs at www.refrigerationmentor.com/courses

In this conversation, we’re talking about the importance of training and mentorship with fellow trainer, Jesse Stewart. Jesse travels across North America educating technicians and emphasizes the significance of engaging and passionate teaching methods to inspire both willing and reluctant learners. We also cover strategies for service managers to motivate their technicians to invest in training, the value of continuous and consistent learning, and the critical role of creating a supportive company culture. This episode was recorded at the 2025 HVACR Training Symposium in Orlando, Florida.

-The importance of training in HVACR

-Different ways of engaging technicians in training

-Online vs in person training

-Encouraging owners and managers to seek training for technicians

-The returns on investing in training

-Drip training vs condensed

-Building a habit of learning

-Being OK with being wrong

-Fostering a positive company culture

Helpful Links & Resources:

Episode 209. Moving Up as a Technician and Revolutionizing HVAC Education with Holden Shamburger of HVACTIME and Chiller Academy

Episode 139. 7 Tips For Building Good Training And Development Habits

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Learn more about Refrigeration Mentor Customized Technical Training Programs at www.refrigerationmentor.com/courses

In this episode of CO2 Experts, we’re joined by regular guest Andrew Freeburg to explain and provide real life examples of how to troubleshoot CO2 systems using trend graphs. Andrew shares some experiences and insights into reading and interpreting trend graphs, emphasizing the importance of fine-tuning systems and utilizing patience and observation to help technicians better troubleshoot issues more effectively and get systems running optimally. This episode was recorded live from the 2025 AHR Expo. 

In this conversation, we cover:

-Understanding trend graphs

-How to find issues using trend graphs

-Making single adjustments and observing changes

-Fine-tuning CO2 refrigeration systems

-Defrost issues

-CO2 leak detection

Helpful Links & Resources:

Episode 250. Service Call Stories and Troubleshooting Tips with Andrew Freeburg

Episode 201. Removing the Fear of CO2 Refrigeration with Andrew Freeburg

Andrew Freeburg on LinkedIn

Refrigeration Unlimited (RUI)

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This conversation was recorded at the 2025 AHR Expo with Jim Pape, CEO of The Arcticom Group, about the importance of leadership training for technicians, particularly those aiming for management roles. We dive into the dangers and evolving safety standards of the industry, as well as the shift towards natural refrigerants like CO2. We also cover innovative training programs and the broader impact of AI and predictive maintenance on the industry.

In this episode, we discuss:

-Importance of training and development

-Safety and dangers in the refrigeration industry

-Consolidation in the refrigeration industry

-Impact of AI and predictive maintenance

-Professionalizing the Technician Experience

-Addressing the skilled trade shortage

-The future of refrigeration

-Embracing CO2 and new technologies

Helpful links and resources:

Episode 206. Investing in Leadership and Training Great Managers with Jim Pape, CEO of The Arcticom Group

Learn more about The Arcticom Group

Email: [email protected]   

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Learn more about Refrigeration Mentor Customized Technical Training Programs at www.refrigerationmentor.com/courses

This conversation is a comprehensive Q&A session revolving around CO2 systems and helping technicians with the transition from traditional refrigerants. It features regular guest Andrew Freeburg, a technician highly experienced in CO2, diving into the rapid transition to CO2, as well as addressing the fears many technicians face due to high pressures, and the necessary tools and methodologies for effective servicing. This is another in our CO2 Experts series, preparing technicians through education and training to ensure efficient and safe operations of CO2 systems.

In this episode, we discuss:

-The rise of CO2 in refrigeration

-Addressing fears and apprehensions of working with CO2 systems

-Overcoming CO2 challenges

-Safety measures for CO2 systems

-Tools and techniques for CO2 systems

-Refrigerant recovery

-Time and cost efficiency

-Importance of following regulations

-EVs vs. pulse valves

-Fine-tuning and system efficiency

Helpful Links & Resources:

Episode 283. CO2 Experts: The Shift from HFCs to CO2 - Lessons Challenges and Solutions with Conor Eaton-Smith

Episode 250. Service Call Stories and Troubleshooting Tips with Andrew Freeburg

Episode 201. Removing the Fear of CO2 Refrigeration with Andrew Freeburg

Andrew Freeburg on LinkedIn

Refrigeration Unlimited (RUI)

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Learn more about Refrigeration Mentor Customized Technical Training Programs at www.refrigerationmentor.com/courses

In this conversation, we’re talking with Megan Dinsdale-Jones, General Manager of Operations at Cool-Safe in New Zealand about environmental sustainability in refrigeration. She discusses her journey from being on the tools in supermarket refrigeration to Cool-Safe, and their mission to manage and destroy synthetic F-gases. We also dive into the establishment of New Zealand's first destruction facility and the role of regulations in shaping the refrigeration industry's environmental impact. 

In this episode, we discuss:

-Megan's family journey into refrigeration

-Supermarket refrigeration and startups

-Emergence of CO2 refrigeration

-Transitioning from traditional refrigerants to CO2

-Role of an environment trust

 -Collection and destruction of harmful gases

-Environmental impact of refrigeration

-Reducing GWP refrigerants

-Challenges and benefits of CO2 systems

-Career advice for refrigeration technicians

Helpful Links & Resources:

Follow Megan on LinkedIn

Cool-Safe Website