Wiring Diagram Old Honeywell Thermostat Instructions

The table above provides a more complete list of honeywell thermostat wiring colors and their uses.

Wiring diagram old honeywell thermostat instructions. Honeywell thermostat rthb wiring diagram. Honeywell thermostat wiring diagram 4 wire examples. Never attach wires to both the b and o terminals. After you have removed and labeled all wires you can unscrew remove the old thermostat wall plate and mount the new thermostat s wall plate.

Label wires and remove your old thermostat see pages. Install the honeywell lyric thermostat like a pro. 8 through 13 wiring diagrams. Use the wiring cross reference table below to match each old thermostat wire with its corresponding terminal on the ct87 wallplate or subbase.

But here is a list of the most common wire color mappings as seen in many four wire t stat setups. If labels do not match letters on the thermostat check the chart at. Honeywell thermostat wiring diagram wires. If the wire labels from your old thermostat hookup don t match the above honeywell offers additional advice that we adapt in table form provided in detail at honeywell 5 2 day programmable thermostat rth2300b1012 wiring.

Honeywell 5 2 day thermostat wiring table. 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. After mounting the new thermostat s wall plate we can re connect the wiring. C 24 vac common you might see blue purple or brown typically used for this wire.

Honeywell backlit display non programmable thermostat rth the home depot. Install and. If we recommend placing a wire in a terminal do not move it to another terminal if we address it later in the guide. Honeywell thermostat wiring instructions.