This professional-grade digital HVAC controller eliminates the variables associated with legacy analog systems

Precise Alignment: Designed with a 13

While the steel is coated for durability

Engineered for maximum field flexibility

Plenum Rated Compliance: Fully certified to UL 1820 and NFPA 90A specifications for use in environmental air spaces

Ranco A22-2451 Control Els PW 17895 This professional-grade digital HVAC controllerThe Ranco A22 2451 Control is a versatile, constant differential temperature control engineered for precision in room air conditioning and commercial refrigeration applications. This SPDT (Single Pole, Double Throw) electromechanical switch provides high amperage switching capacity, rated for 20A at 120V 240V AC, making it a rugged solution for governing compressor cycles. With a dial range of 45F to 81F and a fixed 5F differential, it ensures stable