Honeywell thermostat wiring diagram heat pump - In a state of affairs in which the authentic thermostat wires might also have been stapled to an indoors wall stud, and no longer run through conduit, you will be better off leaving the prevailing set of wires, and reducing them off on the access and exit points of the wall. Then feed new wires with a fish tape (klein equipment). Take a look at your nearby domestic improvement stores, or neighborhood tool rental, for apartment availability.
Some programmable thermostats (e.G. Honeywell prestige wiring requirements) want a minimal of five wires, and maybe extra relying on what functions you need to perform (humidifier, etc). The extra fifth wire may be for not unusual; presenting stepped down electricity from a transformer.
Going into your furnace may additionally sound intimidating, but if you have the primary expertise of wiring, and know how to take away the proper furnace panels to access the electronics, you then should be pleasant. The com 24v terminal may be connected to the c (24 vac commonplace) of the thermostat.
Note: a preceding installer may have used a special set of shade wires. This can be a non difficulty to keep tune of if an entire new set of thermostat wires is pulled. In any other case tag the wires earlier than removing from the prevailing thermostat, or take note of the terminals every twine is attached to.
A: in case you plan to improve to a new thermostat make sure you have the proper variety of wires available, otherwise your new thermostat gained’t work (maximum superior honeywell thermostats require a common (c) cord to strength on). If you do need extra wires, you may want to remember how hard installing new wires may be to your utility, and in case you need to finances for an electrician or hvac tech to put in the right wiring.
When you have smooth access to the existing thermostat wires, just remove and comply with the identical direction with the brand new set of wires. You can use cable ties, electrical tape, or staples (securing wires and cables article). Make sure to take a very conservative measurement on how long your new set of wires must be. You don’t want to start over, in case you arise brief.