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Backwards Compatibility: Certified to replace older York rollout switch part numbers
and MP909E pneumatic actuators
000-cycle life
Durable Construction: Built to withstand high-cycling environments within the furnace burner compartment
White-Rodgers 1F78-151 Thermostat Backwards Compatibility: Certified to replaceThe White Rodgers 1F78 151 is a 5 2 day programmable thermostat designed for single stage heating and cooling systems. Serving as the direct replacement for 9600 models, this 24V digital thermostat offers a reliable upgrade from mechanical mercury controls without requiring a wallplate footprint adjustment. It supports fossil fuel and electric heat configurations and is compatible with millivolt systems and single stage heat pump applications without
