Unique Honeywell 2 Port Valve Wiring Diagram 79 For Your Guest - A: if you plan to improve to a new thermostat make certain you've got the proper wide variety of wires to be had, otherwise your new thermostat received’t paintings (maximum superior honeywell thermostats require a not unusual (c) cord to energy on). If you do want additional wires, you may need to keep in mind how difficult putting in new wires can be to your application, and if you need to finances for an electrician or hvac tech to put in the right wiring. Going into your furnace may additionally sound intimidating, however if you have the basic know-how of wiring, and recognize the way to do away with the proper furnace panels to get right of entry to the electronics, then you definitely have to be first-rate. The com 24v terminal will be connected to the c (24 vac commonplace) of the thermostat.
In a situation in which the unique thermostat wires may additionally were stapled to an indoors wall stud, and not run via conduit, you'll be better off leaving the existing set of wires, and reducing them off on the access and go out factors of the wall. Then feed new wires with a fish tape (klein tools). Check your nearby domestic improvement shops, or nearby tool condo, for apartment availability. Some programmable thermostats (e.G. Honeywell prestige wiring requirements) need a minimum of five wires, and maybe extra relying on what functions you need to perform (humidifier, and many others). The extra fifth cord can be for commonplace; presenting stepped down power from a transformer.
Note: a previous installer may additionally have used a special set of colour wires. This could be a non difficulty to maintain track of if a whole new set of thermostat wires is pulled. Otherwise tag the wires before getting rid of from the prevailing thermostat, or take note of the terminals each wire is hooked up to. If you have smooth get admission to to the prevailing thermostat wires, just put off and observe the identical route with the brand new set of wires. You may use cable ties, electrical tape, or staples (securing wires and cables article). Make certain to take a completely conservative size on how long your new set of wires have to be. You don’t want to start over, in case you arise short.