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 6.4 millimeter or one-fourth inch Iron Pipe Size (IPS) valve. (c) Paragraphs(a) and (b) of this Section do not apply to a machine that uses only a pumped or recirculated sanitizing rinse.