Regular honeywell heat pump thermostat wiring diagram - If you have clean get entry to to the prevailing thermostat wires, simply take away and observe the identical course with the new set of wires. You could use cable ties, electric tape, or staples (securing wires and cables article). Make certain to take a totally conservative measurement on how long your new set of wires should be. You don’t want to begin over, in case you come up quick.
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Notice: a previous installer may also have used a special set of coloration wires. This will be a non difficulty to maintain song of if an entire new set of thermostat wires is pulled. In any other case tag the wires earlier than casting off from the existing thermostat, or be aware of the terminals every wire is connected to.
A: in case you plan to improve to a new thermostat ensure you've got the right range of wires to be had, otherwise your new thermostat won’t paintings (maximum superior honeywell thermostats require a common (c) cord to electricity on). In case you do need extra wires, you'll need to consider how tough putting in new wires will be to your application, and in case you need to finances for an electrician or hvac tech to put in the right wiring.
Some programmable thermostats (e.G. Honeywell status wiring necessities) want a minimal of five wires, and maybe greater depending on what capabilities you need to operate (humidifier, and so on). The additional fifth twine may be for commonplace; presenting stepped down energy from a transformer.
Going into your furnace may also sound intimidating, but if you have the fundamental understanding of wiring, and realize how to cast off the proper furnace panels to access the electronics, then you must be best. The com 24v terminal may be related to the c (24 vac commonplace) of the thermostat.