• Application: For control of high limit and fan motor in all types of forced air heating systems.
• L4064B: Turns fan on and off according to plenum temperature. With helical bimetal sensing element. High limit stop factory set at 200F. Replaces L4064A,B,E.
• L4064W:.Bimetal heater switch turns fan on approximately 20 to 90 seconds after thermostat calls for heat at a cold start. High limit stop factory-set at 200 F. Replaces L4064T, L4064Y.