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By stabilizing the chimney draft
Retrofit Ready: Standard 1-inch NPT union inlet by NPT female outlet configuration simplifies replacement of older 25AUB units
maintaining the same 208-230V electrical profile and RPM range
replacing the X6667 filter annually and the lamps/insert every 24 months ensures the equipment operates at its 2000 CFM design capacity
Johnson Controls MR4PMUHV-12 Control R-410A By stabilizing the chimney draftThe 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
