Thermostat Wiring Honeywell

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.

Thermostat wiring honeywell. The wiring for your honeywell thermostat depends on the functions of your heating and cooling system. Color of wire and termination. Its there so you can supply power to the heating and cooling switches with a single wire which is usually red. Thermostat wiring and wire color chart thermostat wiring colors code.

Available in multiple styles. The additional 5th wire will be for common. Thermostat wiring for dummies. 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 throw control of heating only in a typical gas fired heating system.

Providing stepped down power from a transformer. Even the most seasoned people who enjoy diy may come across problems with wiring a thermostat. Youll probably see a thermostat jumper wire connecting the rc and rh terminals. How to wire a honeywell thermostat with 4 wires.

Diy tinker 1878420 views. The honeywell home trademark is used under license from honeywell international inc. Back in the olden days thermostats were simple onoff devices that didnt need their own continuous power supply. Heck now im not calling anyone a dummy.

Honeywell prestige wiring requirements need a minimum of 5 wires and maybe more depending on what features you want to operate humidifier etc. Our wiring diagrams section details a selection of key wiring diagrams focused around typical sundial s and y plans. Faq t6360 room thermostat wiring operation faq wiring diagram s plan pump overrun st9400 and dt92e. Most common ac problem blower doesnt come on hvac condensate overflow shut off device problem duration.

The next t stat the honeywell t8775c10052 non programmable t stat can control both heating and cooling as well as manual fan operation with just four wires. Some programmable thermostats eg. The main trouble is dealing with those different colored wires knowing which one does what and if that wasnt enough you also have. Mounting plate with four wires of the honeywell large dial thermostat model t87n1026.