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January 24, 2022

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HVAC School – For Techs, By Techs

Real training for HVAC ( Heating, Ventilation, Air Conditioning and Refrigeration) Technicians. Including recorded tech training, interviews, diagnostics and general conversations about the trade.

In this informative episode, Bryan Orr speaks with Andre Patenaude from Copeland about CO2 refrigeration systems. They dive deep into the unique characteristics and challenges of working with CO2 as a refrigerant, providing valuable insights for HVAC and refrigeration professionals looking to expand their knowledge in this growing field.

Andre explains the reasons behind the increasing adoption of CO2 systems, including regulatory pressures and environmental benefits. He details the peculiarities of CO2 refrigerant, such as its high triple point and lower critical point, which create unique operating conditions not seen in traditional refrigerants. The conversation covers the concept of transcritical operation and how it affects system design and efficiency.

The discussion then shifts to the infrastructure of CO2 systems, focusing on the transcritical booster architecture commonly used in supermarket applications. Andre breaks down the components and operation of these systems, highlighting key differences from traditional setups. He also touches on the latest innovations in compressor technology from Copeland, including new designs specifically engineered for CO2’s high-pressure applications.

Key topics covered in the podcast include:

Reasons for adopting CO2 refrigeration systems
Unique properties of CO2 as a refrigerant, including triple point and critical point
Explanation of transcritical operation and its impact on system design
Overview of transcritical booster system architecture
Pressure zones and safety considerations in CO2 systems
Innovations in compressor technology for CO2 applications
High ambient mitigation strategies for improved efficiency
Resources for contractors and technicians to learn about CO2 systems
Upcoming developments in CO2 refrigeration technology
Opportunities for contractors in the growing CO2 refrigeration market

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