Parson Refrigeration Leads with Newer Technologies: CO2 Projects
Parson Refrigeration has had the privilege of installing the first two major retail sites in Ottawa with transcritical CO2 refrigeration systems.
CO2 refrigeration systems have a number of advantages over standard HFC systems in that CO2 is environmentally benign, extremely efficient, can utilize much smaller refrigeration line size in comparison to standard systems, and liquid CO2 is very inexpensive in comparison to its HFC alternatives.
As CO2 operates at much higher pressures some of the design considerations that must be addressed are that all low side piping must be run in type K copper (thicker wall) and all high side piping must be run in stainless steel piping. All the cases and evaporator coils must also be designed for the higher pressures of CO2. Advanced control systems are mandatory for the system to operation safely and efficiently.
There are two major Canadian manufactures of CO2 compressor racks and we were fortunate to be able to work with both system at these projects.
