In many industries where heating or cooling the process comes into play, the process will probably have some type of heat exchanger or condenser. In large volume processes, these units can be very large; easily large enough to bodily enter and do assigned work. But many of these units may not get identified as a Permit-Required Confined Space (PRCS) during the site evaluation because of their design; however, every once and a while these units have their “tubes/bundles” pulled and thus we go from a “nothing space” to a PRCS that needs a Danger Sign and a different energy isolation plan. Let me explain…

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