Fan Regulator Circuit, AC Lamp dimmer, Ceiling Fan In the Triac based electronic ac dimmer fan regulator circuit there are mainly three components used. This is 220v ac dimmer circuit diagram based on capacitor, in the capacitive Dimmer/regulator no noisestor, One Capacitor, One Diac And One Triac. TRIAC is a semiconductor device belonging to the family of thyristors. Air conditioner fan motor circuit diagram - YouTube Click to view5:16Air conditioner fan motor common running starting diagram line neutral check. AC PCB service centre Raipur Chhattisgarh ATS TV Dilip vareAuthor: Dilip vareViews: 127K A simple air conditioning circuit and cycle diagram that The metering device, component #3 on this air conditioning circuit and cycle diagram, is the dividing point between the high pressure and low pressure sides of the system, And is designed to maintain a specific rate of flow of refrigerant into the low side of the system.