How do you wire a thermostat to a carrier model 40AQ036300BU?

To wire a thermostat to a Carrier model 40AQ036300BU, first, ensure the power to the unit is turned off. Connect the thermostat's R wire (power) to the R terminal on the unit, the Y wire (cooling) to the Y terminal, the W wire (heating) to the W terminal, and the G wire (fan) to the G terminal. If using a multi-stage system, ensure proper connections for auxiliary or second-stage heating or cooling if needed. Finally, double-check all connections before restoring power to the system.