Honeywell wiring diagram thermostat - A: if you plan to upgrade to a brand new thermostat ensure you have the proper variety of wires to be had, otherwise your new thermostat received’t work (most advanced honeywell thermostats require a commonplace (c) wire to power on). If you do want additional wires, you will want to take into account how hard putting in new wires will be on your utility, and if you want to finances for an electrician or hvac tech to install the proper wiring. Some programmable thermostats (e.G. Honeywell status wiring requirements) need a minimal of 5 wires, and maybe extra relying on what functions you want to function (humidifier, and so forth). The extra 5th wire can be for not unusual; offering stepped down strength from a transformer.
Notice: a previous installer may have used a distinctive set of coloration wires. This could be a non difficulty to preserve tune of if an entire new set of thermostat wires is pulled. Otherwise tag the wires earlier than putting off from the prevailing thermostat, or take note of the terminals every cord is connected to. When you have easy get entry to to the prevailing thermostat wires, simply get rid of and observe the identical path with the brand new set of wires. You may use cable ties, electric tape, or staples (securing wires and cables article). Make sure to take a totally conservative size on how lengthy your new set of wires should be. You don’t want to begin over, in case you arise brief.
Going into your furnace can also sound intimidating, but when you have the basic understanding of wiring, and recognize the way to eliminate the right furnace panels to access the electronics, then you definately need to be great. The com 24v terminal may be linked to the c (24 vac commonplace) of the thermostat. In a situation in which the authentic thermostat wires may also had been stapled to an interior wall stud, and now not run thru conduit, you will be better off leaving the existing set of wires, and reducing them off on the entry and go out points of the wall. Then feed new wires with a fish tape (klein equipment). Take a look at your nearby domestic improvement stores, or nearby tool apartment, for condo availability.