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This was a fantastic session with a good friend of mine Francois Aucoin who is the Engineering Director for Evapco LMP. We had a great conversation on how they build and design CO2 system. Francois shared with us some tips, tricks and thing you want to look for when working on a CO2 system.

Topics Discussed:

Things you need to look out for when servicing a CO2 system

Evapco LMPs CO2 commercial and industrial system designs

How their Mechanical Depressurization oil system works

Why it is important to know how the PID, electrical and controls diagrams work.

Understand how each component works and reacts with one another is very important when servicing a CO2 system

Steps you should take when you are troubleshooting a CO2 system

Proper installation procedures, deep evacuation, proper CO2 charging steps and checking all the

How Evapco LMP designs their Hot Gas Defrost System for both High and Low pressure defrosts

Looping system vs Home Run circuits

Patent Heat Reclaim on Purity+ which is taking heat from before and after the Gas Cooler

Evapco LMP – https://evapcolmp.ca/en/

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We dive into how we collectively can get more people excited and involved into HVACR industry.

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We have the pleasure to have returning CO2 expert Phillip Walker from Arneg Canada joining us again. https://arneg.ca/en

Phillip will be diving into how hot gas defrost works when using the subcritical side heat to defrost systems.

Topics we discuss:

• We quickly review the previous episode on flash tank stability
• LT Booster Compressor Hot Gas Design
• Why mass flow is critical for Subcritical Defrost
• How you get more mass out to your evaporators
• What the differential Arneg uses across the hot gas valve
• Why the placement of the HGV is so important
• Limiting the size of system lineups is critical with subcritical hot gas defrost systems
• What type of pressure drop on a circuit can see
• The reason they opening the EEVs during defrost
• Why Expansion loops are so important
• How dump solenoids on suction side work
• Length of defrosts and drip time
• How Hot Gas can be an efficiency gain on your system
• Issues you can see with hot gas systems
• Why high mass Arneg systems will have 2 flash tanks
• The step that follow when going into defrost.

Learn more about Phillip - https://www.linkedin.com/in/phillmwalker Learn more about Arneg - https://arneg.com

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2023 HVACR Symposium get your tickets here - https://hvacrschool.com/hvacr-training-symposium-2023/

Todays Topics:

2022 HVACR symposium

Think and Grow Rich by Neaploen Hill

Why it is important to feed your mind

Just a phone call away troubleshooting

How technicians are learning into todays world

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This was a great conversation from a really great friend of mine who has shared a lot of wisdom with me over the years.

We talked about:

The importance of communication

What motivates us

Why it is important to make a plan

Scheduling your time

Mentorship and being gratful for the little things,

Enjoy

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CO2 Monday guest is James Darby from Resource Data Management. James shares with us what RDM has to offers the industry for a solid refrigeration control platform.

Topics we discussed:

Communication Protocols IP vs Modbus tcp/ip vs Modbus RTU

RDMs CO2 superPAC controller

The flexibility advantage of RDM controllers for new installs and retrofits

RDM PLC controllers for customized system control design

The advantage of the Data Manager that can log years of data

They types of pictorial blocks to design a full customized control package. Examples like controlling parallel compressors or ejectors

How RDM hubs can reduce installation cost and change setpoints in a click or two with the broadcast feature

RDM Case Controllers which have many benefits like its ability to control all major manufactures EEVs.

Suction Float, Network Trim Control, Case Performance, Night Blind Detection, Defrost Warning and much more

Learn more about RDM at resourcedm.com

Get in touch with James on linkedin https://www.linkedin.com/in/james-darby-40756138/ or at [email protected]

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We dive into the importance of working safe in the field. How CO2 refrigeration continues to grow around the world and things that will help prepare us for when with start working on new technologies.

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My returning guest this week was a good friend of mine Mr. James Bailey. We had a great discussion on Net Zero and what it is. We talk about things we can start doing to slow global warming and how you will start seeing more and more Natural Refrigerants like CO2 will play a big roll in this massive endeavor.

About Our Guest

James Bailey is a Chartered Engineer and Fellow of the Institute of Refrigeration.

James is a consultant from OMEGA Solutions which offers an insightful approach and collaborative way of working to prepare organizations and their people for growth and lasting success.

Follow James Bailey on LinkedIn: James Bailey

Find out more about OMEGA Solutions HERE: www.omega-solutions.co.uk

Purchase James Baileys Books Culture Redefined here: Culture Redefined: A Leadership Strategy Towards Stakeholder Capitalism: A Time for Change

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I dive in ways business owners can change the ways they invest in their team. We chat why more companys need to start investing in building their company culture through training and development.

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Over the last 6 months I have talked to dozens of CO2 experts from all over the globe. From learning the fundamentals to deep techcincal knowledge on CO2 we cover it all. This is a highlight reel of the guest who have come on the CO2 Mondays show.

Here are some of the first 25 guest on CO2 Monday's:

James Bailey CEng FInstR from Omega Solution Andre Patenaude, CET from Emerson Commercial & Residential Solutions / Blackstone Brett Wetzel Advanced Refrigeration Podcast from CoolSys - Refrigeration and HVAC Systems Wynand Groenewald from Future Green Now Phil Boudreau from BITZER / BITZER US Michael Harding from Gateway Mechanical Services Lars Hørup Jensen from Advansor Benoit Rodier from CIMCO Refrigeration Inc. Kevin Compass from Climate Pros, LLC Timo Kaufhold from CAREL Patrick Clardy from Danfoss Climate Solutions Jake Henderson from Neelands Group Ignacio Varela Chaparro from Kysor Warren Manuel Fröschle from BOCK Damon Reed from Pro Refrigeration Inc Phillip Walker from Arneg S.P.A. Daniel Clark from isentra Matthew Darby from EcoChill Giacomo Pisano from Officine Mario Dorin Spa And many others who have been on Refrigeration Mentor podcast and CO2 Mondays

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