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or bottom of a duct
97% efficiency at 0
By stabilizing the chimney draft
this component offers a drop-in fit
Universal 24V Logic: Compatible with any 24 VAC
Johnson Controls MR4PMUHV-12 Control R-410A or bottom of a ductThe Johnson Controls MR4PMUHV 12 is a professional grade, multi function refrigeration defrost control designed for precise temperature management in commercial walk in coolers and freezers. As a primary digital defrost timer replacement, this unit integrates four critical functions into a single HVACR control module: a high accuracy thermostat, a defrost cycle timer, a digital readout, and a defrost termination switch. It supports both electric heat
