Assuming the wires follow the standard color code you ll be making the following basic connections for a single zone heat pump.
Carrier ac thermostat wiring.
Carrier thermostat wiring honeywell thermostat wiring it s all basically the same.
R the r terminal is the power.
For programmable thermostats and smart thermostats c wires are essential for setting a schedule or having your heat or air conditioner turn on at a desired temperature while some units can run without a c wire even brands like nest recommend having one for optimal.
My paperback and e book.
Carrier to honeywell thermostat wiring carrier air to air heat pump model fv4bnf003000aaaa with electric backup dehumidifier and outdoor temp and humidity sensor.
The common wire sometimes referred to as the c wire is what s responsible for delivering constant power to your thermostat.
The thermostat is the primary way to control heating and cooling in your home and it can be as simple or advanced as you want from traditional to smart thermostats carrier gives you top of the line controls for your home heating cooling and air quality needs.
Red wire to rh or rc which are usually bonded.
Thermostat wiring and wire color chart thermostat wiring colors code.
It is a red wire and comes from the transformer usually located in the air handler for split systems but you may find the transformer in the condensing unit.