Industrial CO2 / R744 Training
Industrial CO2 Refrigeration applications and CO2 Cascade systems are a viable choice for all future systems. CO2 known as R-744 has been used as a refrigerant since the 1860’s and reemerged from hibernation the last 30 years. Our class is industrial refrigeration based. This class is available in person and online. We suggest that each candidate for this class have at least 6 months experience in your companies in-house training program and has spent time doing rounds and basic maintenance needs to the ammonia refrigeration system.. We call this certification
R-744 Industrial Operator
Successful students have backgrounds and/or experience in basic refrigeration systems an industrial experience would be a plus. Aptitudes needed for success are basic mathematics, observation, applied technology, locating information, and reading for information. The class in a person is a 2.5 day session and online you have a year to complete. All ARTS certifications are active for a three window and carrier of those credentials must follow all company and regulator procedures.
The R-744 Industrial Operator course entails a copy of the latest edition industrial carbon dioxide refrigeration book hand selected by ARTS. This book is for the student to keep and reference not only during the class but their entire career. Topics to be covered are as follows:
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Topics covered in
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CO2 Safety / Regulations / Best Practices
- SDS
- CO2 Latent Heat of fusion
- Sub-Critical
- Trans-Critical
- Hydrostatic Expansion
- Pressure
- Sublimation
- Pressure Drop
- Relief Valves
- Relief Valve Headers
- Charging CO2 Systems
- CO2 Detection
- Ventilation
- Loss of Power / Stand Still Conditions
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CO2 Refrigeration Cycles
- Single Stage
- Two Stage
-
The Properties of CO2
- SAT
- Superheated
- Subcooled
- Dry Ice
- Supercritical
-
CO2 Systems
- Cryogenic
- What is Cascade
- Cascade Brine
- Cascade Overfeed
- Cascade Compression
- Cascade Combination
- Cascade
- Transcortical
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CO2 System Components
- Cascade Heat Exchangers
- Compressors
- Pumps
- Evaporators
- Condensers
- Expansion Devices
- Throttling Valves
- Piping
- Vessels
- CO2 DX
- CO2 Flooded
- CO2 Overfeed
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Installation / Commissioning / Maintenance
- CO2 Considerations
- Pressure loss and size of piping
- Defrosting
- Gas Defrosting Implications
- Standstill cooling
- Power drop-out and emergency stop
- Failed Cascade Heat Exchangers
- CO2 Capacity Control
- Leaks
- Moisture
- Oil
- Skimmers
- CO2 Heat Pumps
- Heat Recovery
- CO2 Thermosyphon Systems
R-744 Industrial Operator
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