Original Wiring Diagram Thermostat Honeywell 8 Thermostat Wiring Diagram Honeywell Cable Stuning - Blurts.Me - A: if you plan to upgrade to a brand new thermostat make sure you have got the right wide variety of wires to be had, otherwise your new thermostat received’t paintings (maximum advanced honeywell thermostats require a commonplace (c) twine to electricity on). In case you do need additional wires, you will want to don't forget how difficult putting in new wires will be for your utility, and if you need to finances for an electrician or hvac tech to install the right wiring. Going into your furnace may additionally sound intimidating, but when you have the basic know-how of wiring, and realize the way to take away the proper furnace panels to access the electronics, then you must be first-class. The com 24v terminal may be connected to the c (24 vac commonplace) of the thermostat.
A few programmable thermostats (e.G. Honeywell prestige wiring necessities) want a minimal of 5 wires, and perhaps extra relying on what features you need to perform (humidifier, and many others). The additional fifth wire might be for not unusual; offering stepped down strength from a transformer. If you have smooth get right of entry to to the existing thermostat wires, just do away with and observe the same direction with the new set of wires. You could use cable ties, electrical tape, or staples (securing wires and cables article). Make certain to take a totally conservative measurement on how long your new set of wires need to be. You don’t need to start over, in case you arise quick.
Notice: a previous installer might also have used a one-of-a-kind set of colour wires. This may be a non issue to hold music of if an entire new set of thermostat wires is pulled. In any other case tag the wires before eliminating from the prevailing thermostat, or pay attention to the terminals every wire is connected to. In a scenario in which the authentic thermostat wires might also had been stapled to an interior wall stud, and not run via conduit, you will be better off leaving the existing set of wires, and slicing them off at the entry and exit points of the wall. Then feed new wires with a fish tape (klein equipment). Take a look at your neighborhood home development stores, or nearby device condo, for condominium availability.