4 Wire Honeywell Thermostat Rth111b Wiring Diagram

A previous installer may have used a different set of color wires.

4 wire honeywell thermostat rth111b wiring diagram.
The table above provides a more complete list of honeywell thermostat wiring colors and their uses.
If its a new installation you may have to identify the wires first.
Upgrading from a 4 wire thermostat to a 5 wire.

Loosen the terminal screws using a screwdriver insert the.
Typical 4 wire thermostat t stat wiring examples follow.
Youll probably see a thermostat jumper wire connecting the rc and rh terminals.

Even the most seasoned people who enjoy diy may come across problems with wiring a thermostat.
The main trouble is dealing with those different colored wires knowing which one does what and if that wasnt enough you also have numbers and letters to deal with.
Do not use b wire if you already have o wire.

Quick installation guide 6 alternate wiring if a labeled wire does not match any terminal designation see diagram below.
But here is a list of the most common wire color mappings as seen in many four wire t stat setups.
G fan green wire r 24 vac rc and r or rh red wire y compressor air conditioner yellow wire w heat white wire note.

Its there so you can supply power to the heating and cooling switches with a single wire which is usually red.
Honeywell rth111 quick installation manual.
This will be a non issue to keep track of if a whole new set of thermostat wires is pulled.

4 wire honeywell thermostat wiring.
The honeywell rth111b is a programmable version of the honeywell rth111 thermostat series.
Some have the common c wire while others do not.

Honeywell thermostat wiring diagram 4 wire examples.
When replacing an existing thermostat simply note the terminals to which the wires are attached and attach them to the same terminals.
This thermostat cannot be used if your old thermostat had any two of the following wires.

How to wire a honeywell thermostat with 4 wires.
The wiring for your honeywell thermostat depends on the functions of your heating and cooling system.
Honeywell rth2300 rth221 wiring diagram collections of new wiring diagram for honeywell thermostat rth221.

Honeywell thermostat installation and wiring.
Wrap bare end of wire with electrical tape.
Heck now im not calling anyone a dummy.

Rth2300 wiring diagram two get free image about wiring diagram.
Honeywell rth2300 rth221 wiring diagram sample.
R rc rh 4 and v.

Package ac controll wiring diagram with thermostat rywg wire connection everything.
Non programmable thermostat rth111 connect wires typical wiring match each labeled wire with the terminal having the same letter.
Both examples of how to wire a honeywell thermostat with 4 wires are discussed below.

Thermostat honeywell rth2300 series quick installation manual 56 pages.