Designing a Direct Expansion (DX) System
Colville, WA: Bruce Nelson, President of Colmac Coil, was recently asked to provide information on designing a direct expansion (DX) technology refrigeration system for an article in The Condenser Magazine. Nelson highlighted the advantages of a DX system including its minimized safety risks and economical first cost.
Nelson went on to lay out four crucial steps to take before designing and installing a DX technology system. These include: selecting the right type of tubing for the evaporator, designing the system to capture and remove water from ammonia, making sure there will be proper piping for handling defrost condensate, and ensuring proper control and distribution of the ammonia to the evaporator coil.
“First and foremost, DX Ammonia technology reduces the amount of ammonia needed to refrigerate a facility, so it is inherently a safer technology,” Nelson said. “You’re also offering the end user the very attractive benefits of lower first cost and lower operating costs.”
To read the entire article from The Condenser Magazine, click here.