Relay Switch Working January 15, 2019 Switches . electronics.stackexchange.comFundamentals Of Electricals: How A Relay Works. 2012edutech.blogspot.comHow Relays Work. PCB Heaven! Electronic theory, schematic circuits and PIC tutorials www.pcbheaven.com 14 Gauge Ground WireInstall 3 Way Switch As Single PoleYork Digital ThermostatGround Wire CableFive Wire ThermostatBlack Wall SocketsHeat Pump Electrical Diagram2008 Ford Explorer Wiring Diagram