CO₂ in Commercial Refrigeration

Prepare for the widespread adoption of CO₂ by learning from our experts and exploring our breadth of CO₂ resources.

White Papers

6 months ago

Baselining CO₂ Refrigeration

This white paper is a technician’s guide to start-up and baselining CO₂ transcritical booster system operation.

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6 months ago

CO₂ Transcritical Booster System Design

This white paper takes a deep dive into reviewing fundamental design principles and system sizing best practices.

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5 months ago

Regional Adaptations: System Design Considerations for CO₂ Refrigeration

Discover system design strategies on how to optimize performance, improve energy efficiency, and lower utility costs per installation location for CO₂ transcritical booster systems.

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Infographics

2 months ago

Top 10 Differences Between CO₂ and HFC System Designs

Discover the top 10 differences between CO₂ and HFC system designs through our infographic.

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2 months ago

Optimizing CO₂ Transcritical Booster Efficiencies

Discover the considerations and expanding potential of CO₂ refrigeration based on your climate zone in this infographic.

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CO₂ Chats Video Series

over 1 year ago

CO₂ Chats | What is the critical point of CO₂?

Emerson’s Andre Patenaude, director – solutions strategy, answers this question and what it looks like when a system operates above and below the critical point (87.8 degrees Fahrenheit).

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over 1 year ago

CO₂ Chats | What are typical operating pressures of a CO₂ transcritical booster system?

Emerson’s Andre Patenaude, director – solutions strategy, answers this question and where these pressures occur in a system to give contractors a level of comfort.

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over 1 year ago

CO₂ Chats | What’s the triple point of CO₂, and why is that important to know?

Emerson’s Andre Patenaude, director – solutions strategy, answers this question and shares how this affects saturation pressure in a system.

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over 1 year ago

CO₂ Chats | How should you charge a CO₂ refrigeration system?

Emerson’s Andre Patenaude, director – solutions strategy, answers this question and discusses the importance of understanding the triple point pressure of CO₂ and how to effectively charge a system.

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over 1 year ago

CO₂ Chats | How do you preserve system charge during a CO₂ refrigeration system shutdown?

Emerson’s Andre Patenaude, director – solutions strategy, answers this question and what actions or mitigation strategies should be put in place depending on how long the system shutdown takes place.

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over 1 year ago

CO₂ Chats | How do you avoid CO₂ evaporators from flooding in the event of a power outage?

Emerson’s Andre Patenaude, director – solutions strategy, answers this question and shares how pulse width modulated valves, stepper valves and case controls are used to prevent flood back.

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over 1 year ago

CO₂ Chats | How should you store CO₂ refrigerant?

Emerson’s Andre Patenaude, director – solutions strategy, answers this question and discusses the importance of first understanding local building codes for storing CO₂ refrigerant.

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over 1 year ago

CO₂ Chats | How do you detect leaks in CO₂ systems?

Emerson’s Derek Langenkamp, product manager, answers this question and shares the importance of a leak detector to detect the colorless and odorless CO₂ refrigerant.

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over 1 year ago

CO₂ Chats | What is trapped liquid in a CO₂ refrigeration system?

Emerson’s Derek Langenkamp, product manager, answers this question and how liquid can get trapped between valves which then prompts the need for the system to be fitted for pressure relief valves.

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over 1 year ago

CO₂ Chats | How do HFC refrigerant properties compare to CO₂?

Emerson’s Derek Langenkamp, product manager, answers this question and breaks down the unique performance and operating characteristics of CO₂ refrigerant that dictate system design.

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about 1 year ago

CO₂ Chats | Can you describe a CO₂ transcritical booster system and how it works?

Emerson’s Andre Patenaude, director – solutions strategy, discusses how the low-temp compressors discharge into the medium-temp compressors which boost into the gas chamber.

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about 1 year ago

CO₂ Chats | How is a CO₂ cascade system configured, and how does it work?

Emerson’s Andre Patenaude, director – solutions strategy, answers this question and describes the two stages within a cascade system – high stage and low stage – and what refrigerants are used in both

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over 1 year ago

CO₂ Chats | Why is an adiabatic gas cooler used in CO₂ systems?

Emerson’s Andre Patenaude, director – solutions strategy, discusses how the pre-adiabatic cooling pads and coils from the condenser help the CO₂ system operate more efficiently at lower pressures.

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over 1 year ago

CO₂ Chats | How do you ensure energy efficiency in a CO₂ system?

Emerson’s Andre Patenaude, director – solutions strategy, shares how energy efficiency is dependent upon many factors: ambient, humidity, availability of water, cost of water and peak demand charges.

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about 1 year ago

CO₂ Chats | What does parallel compression mean when referring to CO₂ systems?

Emerson’s Andre Patenaude, director – solutions strategy, answers this question and discusses how there is an additional suction group with an extra parallel compressor added to the rack.

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