Risk Assessment 1 IB

A hazard level of IB has been assigned since, based upon the current panel design, it is quite probable that such an operator error could occur and the effects (threat to human health, equipment/parts damage, etc.) are considered catastrophic. 

Cause The control switches for coolant flow and solvent flow are located side-by-side and are identical in appearance. As with the gauge assessment above, the result of this design scheme would be an increased potential for operator error in system activation. 

Effect Inadvertent activation or deactivation of either system, at the wrong time during the operational flow, would adverse hazardous effects as follows  

Deactivation of the coolant flow instead of solvent flow would result in a steady loss of coolant in the system. This would allow Freon vapor to escape the tank and threaten human health. 

Deactivation of the solvent flow instead of coolant flow would allow an excess amount of solvent liquid into the tank and subsequent equipment or parts damage is likely. 

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