So far, I have discussed Evaporative Condensers and Spiral Freezers, making the case that most of these spaces are indeed Permit-Required Confined Spaces (PRCS). This last space is gaining a lot of traction over the past 10-20 years, and still today, the design of most of these penthouses makes them, without a doubt, a PRCS. In this last article in this series, I will break down the characteristics of the space and the criteria that make the space a Confined Space (CS), and what makes them a PRCS. I will say this, EVAPCO has a “penthouse” that is designed to be much like a tiny engine room, and thus, it does NOT meet the criteria for a CS and, therefore, can never be a PRCS.
So let’s begin with why most of these penthouses are Confined Spaces:
