- Honeywell Thermostat Wiring Instructions | Diy House Help
- 5 Wire Honeywell Thermostat Wiring
- How to Wire a Thermostat | HVAC Control
- Thermostat Wiring for Dummies
AND it has been recorded by a professional in the industry. Wiring Set-Up Explained What I would like you to know is the information detailed below is based on the industry standard, yet not all thermostats will work this way simply because letters and numbers are used as well as color.
So, this is what you might expect to see in terms of colored wires and what they mean: White — The white wire is what connects to the auxiliary heat on your system. Helpful Page to help you select the right thermostat opens in a new window. Honeywell Thermostats Available Here.
Thermostat Wiring and Installation Advisory………. If you decide to install your own thermostat you do so at your own risk. There are many incidences where the homeowner installed their own thermostat and was successful. There are also many incidences where the homeowner was unsuccessful installing a new thermostat.
The people that were unsuccessful wasted part of their day, ruined a thermostat or two and caused the malfunction of an integral part of their system. That is not mentioning the fact that they ended up calling a professional HVAC Technician to fix the problems. Problems caused by improperly installing a thermostat. The unsuccessful end up paying three to four times what they would have paid if a professional was called first. Factor this into your decision and if there is any doubt call a professional. Call a professional to install and wire the new thermostat.
Before you begin to install your new thermostat turn the power off. These are the four wires that you need to control the heat, cooling and the blower or fan. This is for most air conditioning and heating systems. If the colors of the wires do not match the colors described here make sure you mark the wires with masking tape. Sometimes you will have extra wires that are not connected. Thermostat wire comes in many different varieties. The contractor who installed the system probably used 5 wire or 8 wire thermostat wire bundle.
They used what they needed and simply twisted or cut the other wires off. Thermostat wire terminations should be neat with no excess copper exposed. Additional answers to your questions concerning thermostats can be found here in our thermostat category index.
Other questions about a Honeywell thermostat, Honeywell thermostats, programmable Honeywell thermostats can be found at the Honeywell Thermostat website. Additionally, see thermostat wiring color code chart to help with How to Wire a Thermostat. This thermostat wiring diagram is a split system. The wires going to the condensing unit are shown in red and white. However, these colors can be different. One wire originates from the thermostat Y terminal and terminates at the condenser.
The other wire originates from the common side of the transformer. The transformer is commonly installed in the air handler. In rare installations, the condensing unit will have the transformer. The manufacturer did not install the transformer in the condenser. The transformer was blown in the past. Additionally, the colors here are typical. However, they can be different depending on who wired the unit and their color coding system. Most HVAC technicians will use this color code.
Honeywell Thermostat Wiring Instructions | Diy House Help
However, there is an occasional oddball who knows better than everyone else. Or perhaps the wiring color combination was not available for the new installation. Always keep in mind to properly dispose of hazardous materials responsibly. Older mechanical thermostats contain mercury and mercury are extremely hazardous to human health and our environment. Most municipalities have a hazardous waste collection site. They will be happy to accept your old thermostat and dispose of it properly.
Additionally, there are state and federal laws that are explicit about properly disposing of hazardous waste including products containing mercury.
5 Wire Honeywell Thermostat Wiring
Please do not throw the old thermostat in the regular waste bin. Be responsible and properly dispose of the old thermostat. See the About the Author page for information about the author of this article. Photo Uploads If you are human, leave this field blank. If you want to include a description then do so here. Upload your photos or documents here! Drop a file here or click to upload Choose File Maximum upload size: Hello I would like to know how to wire two heating Units on a same thermostat.
How to Wire a Thermostat | HVAC Control
Becasuse i have these two heating units running on a same open space. Thank you in advance. We cannot use one thermostat to control two different heating system which were controlled by two different thermostat. You mentioned that some older tstats may have just an R and W wire, and therefore a new digital tstat may require new wire to be run a bundle containing a C wire.
- Wiring Set-Up Explained.
- dating my cousin jokes?
- How to Wire a Thermostat | Wiring Installation Instructions.
- dating not marriage eng sub.
My old tstat has simply a W and a C black wire. Do I need to run wire that has W, R and C? And if so, would it save me a headache to run a bundle with more wires in case I install an air conditioner in the future? C refers to Common in the 24 volt circuit and on the old mechanical thermostat I am not sure what the C stands for but you do need three wires and yes it would be better to run a bundle of more in case in the future you upgrade.
I typically recommend that the two thermostats be combined into one thermostat that will handle both systems if in fact you do have a central air conditioner system. With two different thermostats it is easy to have both systems running at the same time which is a waste of energy. You can pick up multiple bundled thermostat wire at your local hardware store. Ibought a new 18 seer 5 ton stright cool condensing unit and can not get it to run it has 2 stage heating and cooling can you help me thanks.
If it is a 5 ton straight cool air conditioner then it does not have heat. Straight cool means no heat, just cooling. If your thermostat does not have a Y1 and a Y2 then then you can stage it. It needs a two stage themostat. Probably best to call an HVAC contractor to wire this for you. They can quickly identify what you have and wire it properly for control. I have a separate boiler and AC unit.
I would like to install a new thermostat that is a WIFI unit.
Thermostat Wiring for Dummies
I can send photos of the boiler and the old thermostat wiring. The wire running to the thermostat seams to be from the AC unit not the boiler. How should I wire the new thermostat.