Old Honeywell Thermostat Wiring Diagram

Strip the wire insulation as needed to fit the wires underneath the ter minal screws.

Old honeywell thermostat wiring diagram. But here is a list of the most common wire color mappings as seen in many four wire t stat setups. Honeywell thermostat wiring diagram wires. 8 through 13 wiring diagrams. Yellow the yellow wire connects to your compressor.

Honeywell thermostat wiring diagram 4 wire examples. Wire the thermostat 1. The honeywell home trademark is used under license from honeywell international inc. Red now there can be two separate wires for this.

Also see these other honeywellt87 wall thermostat wiring diagrams honeywell wall t87 f type thermostats for sketches and drawings of honeywell thermostat wiring hookups. The model number of the honeywell thermostat was not provided however here are the typical wiring assignments for a conventional heating system. These wires run directly outside and provide outdoor temperature information to the thermostat. Our page top sketch courtesy of honeywell controls illustrates the wiring diagram for a traditional honeywell t87f thermostat used for 2 wire single pole single i am trying to wire an rth series honeywell thermostat and i followed what i believe is the correct wiring diagram but nothing is kicking on.

It s used for systems that don t provide a c wire but have a thermostat that requires one. In the honeywell t87f thermostat series the single pole double throw switch makes closes one set of contacts when the temperature falls to turn on the heating appliance. Our wiring diagrams section details a selection of key wiring diagrams focused around typical sundial s and y plans. Wiring details troubleshooting for the honeywell 5 2 day programmable thermostat rth2300b1012.

Orange this wire connects to your heat pump if you have one. The table above provides a more complete list of honeywell thermostat wiring colors and their uses. Green the green wire connects to the fan. Install the honeywell lyric thermostat like a pro.

Use the wiring cross reference table below to match each old thermostat wire with its corresponding terminal on the ct87 wallplate or subbase. White the white wire is what connects to the auxiliary heat on your system. At left the thermostat wiring diagram illustrates use of a honeywell t87f thermostat in a 2 wire application controlling a gas fired heating appliance. 4 wire honeywell thermostat wiring diagram a pcb layout is the resulting design from taking a schematic once specific components and determining how they will physically be laid out upon a.

Never attach wires to both the b and o terminals. Keep in mind that there should be a low voltage cable in the wall where the thermostat is located which has individual wires as shown in the instructions below.