Honeywell Rth2510 Thermostat Wiring - Wiring Diagram - Going into your furnace may also sound intimidating, however if you have the basic understanding of wiring, and recognise a way to remove the right furnace panels to get right of entry to the electronics, then you definitely need to be first-rate. The com 24v terminal may be connected to the c (24 vac common) of the thermostat. A few programmable thermostats (e.G. Honeywell status wiring requirements) want a minimum of five wires, and perhaps greater depending on what capabilities you need to function (humidifier, and so forth). The additional 5th twine will be for not unusual; offering stepped down energy from a transformer.
Word: a preceding installer may have used a special set of color wires. This can be a non issue to maintain track of if a whole new set of thermostat wires is pulled. In any other case tag the wires earlier than doing away with from the present thermostat, or take note of the terminals every twine is attached to. In a scenario in which the authentic thermostat wires might also had been stapled to an interior wall stud, and no longer run through conduit, you will be better off leaving the present set of wires, and cutting them off at the access and go out factors of the wall. Then feed new wires with a fish tape (klein gear). Take a look at your nearby domestic development stores, or neighborhood tool condominium, for rental availability.
If you have smooth get right of entry to to the existing thermostat wires, simply dispose of and comply with the same path with the new set of wires. You can use cable ties, electric tape, or staples (securing wires and cables article). Make certain to take a completely conservative dimension on how lengthy your new set of wires need to be. You don’t need to start over, in case you arise short. A: if you plan to upgrade to a brand new thermostat ensure you have got the proper number of wires available, in any other case your new thermostat gained’t work (most superior honeywell thermostats require a commonplace (c) twine to strength on). In case you do need extra wires, you'll need to consider how tough installing new wires might be to your software, and in case you want to finances for an electrician or hvac tech to put in the right wiring.