Johnson Controls MR4PMUHV-12C MR4 Refrigeration Temperature and Defrost Control [New]

Johnson Controls MR4PMUHV-12C MR4 Refrigeration Temperature and Defrost Control Module - The MR Series Controls are versatile, microprocessor-based, multi-function, programmable temperature controls. Depending on the model chosen, the MR Series Controls can also manage alarm, defrost cycle (active or passive defrost), and evaporator fan functions.. Johnson Controls. Johnson Controls. MR4PMUHV-12C.