Blower Relay Wiring Diagram. Discussion starter 1 oct 18 2015. Consumer fan 12v 87b.
The first element is symbol that indicate electric component from the circuit. For example when a module will be powered up also it sends out a signal of 50 percent the voltage in addition to the technician does not know this hed think he provides a problem as he would expect a 12v signal. Page 2 standard relay pins 30.
2 indicate that the current flows fromdowntoupbi directional arrows indicate that the direction of current flow changeswhencommunication is in progress.
12 vdc is then sent through the contacts from the orange wire to the purple wire blower motor. How to read the wiring. Hvac relays the icm277c blower control board youtube. Each circuit diagram consists of blocks.