12VAC5-421-1380: Warewashing machines, flow pressure device

A. Warewashing machines that provide a fresh hot water sanitizing rinse shall be equipped with a pressure gauge or similar device such as a transducer that measures and displays the water pressure in the supply line immediately before entering the warewashing machine; and

B. If the flow pressure measuring device is upstream of the fresh hot water sanitizing rinse control valve, the device shall be mounted in a one-fourth inch or 6.4 millimeter Iron Pipe Size (IPS) valve.

C. Subsections A and B of this section do not apply to a machine that uses only a pumped or recirculated sanitizing rinse.