Identify and label each of the existing thermostat wires by using not the wire colors (someone could have made a wire color error and violated convention) but rather, identify each existing thermostat wire by noting the letter next to the old thermostat wiring block terminals where each wire was connected to a screw. And in setup you are to "In Setup, set changeover valve to O or B.". For typical wiring examples, and for clarification of what types of systems your thermostat works with, please consult your owners/install guide. Select 1 Stage (default) or 2 Stages. What should we do to improve this article? into the RC terminal. Other questions about a Honeywell thermostat, Honeywell thermostats, programmable Honeywell thermostats are found at the Honeywell Thermostat website. From that the grn/yel wire appears to be permanent live in, the brown wire switched live to the boiler, and blue neutral. I assumed that batteries were only a back-up system in case of temporary electricity outage. Saturday and Sunday: 9am - 5pm CDT, Total Connect Comfort Thermostats HONEYWELL RTH6350 / RTH6450 THERMOSTAT INSTALLATION GUIDE [PDF] retrieved 2017/12/26, original source: https://customer.honeywell.com/resources/techlit/TechLitDocuments/69-0000s/69-2416ES.pdf, HONEYWELL RTH6350 / RTH 6450 and RET93E / RET95E Series Thermostats INSTALLATION & OWNERS MANUAL [PDF] retrieved 2017/12/26, original source: https://customer.honeywell.com/resources/techlit/TechLitDocuments/33-00000s/33-00116ES.pdf, HONEYWELL RTH6350 / RTH6450 Series THERMOSTAT OPERATING MANUAL [PDF] does not include wiring instructions, retrieved 2017/12/26, original source: http://pdf.lowes.com/useandcareguides/085267573672_use.pdf. five wires, however you could see as few as two, and as many as ten. Some thermostat systems, in fact most but not all of them, rely on the 24 volt power provided by the thermostat circuit.I have encountered thermostats the only operated off of battery power because voltage wasn't being delivered by the thermostat circuit. Common, simply connect C terminal from the thermostat to When wiring, each wire should be identified by what terminal(s) it connects to, never by color. But with multiple zone heat, you should expect to provide a thermostat for each individual zone - else they're not heating zones at all. You'll probably see a thermostat jumper wire connecting the Rc and Rh terminals. I hooked it up on the control board. Monday through Friday: 7am - 7pm CT. Old Honeywell Thermostat Wiring Diagram Source: s3.amazonaws.com Old Honeywell Thermostat Wiring Diagram Source: highperformancehvac.com Before reading a new schematic, get familiar and understand all the symbols. Remember that ultimately a thermostat is simply an on-off switch, or provides several on-off functions. terminal. If a terminal has The thermostat makes a contact on both a rise and on a fall of room temperature. Please follow the below guide for the basic wiring walkthrough: To protect your equipment, turn off the power at the breaker box or switch that controls your Open Hours: Next, remove your existing thermostat from the wall plate. First, did you confirm what the blue wire is doing in your wiring harness? *. And the company makes clear that their controller is compatible with standard thermostats: ALL - controls are compatible with 2, 3 or 4 wire type Saturday and Sunday the tstat read 73, and stayed running. There was an additional blue wire that was not used, but i needed now for the 24volt power. Do not use B wire if you already If you have a dual-fuel system, or are unsure, it is recommended that you contact a In this sketch from a 1949 Honey Heating Control Handbook the thermostat has been satisfied (both contacts are open) and the system is not calling for heat. plate and mount the new thermostat's wall plate. Connected to the R terminal in the room thermostat. - You have a single wire labeled W-O/B and we advise placing it in the O/B terminal. Open Hours: At left the thermostat wiring diagram illustrates use of a Honeywell T87F thermostat in a 2-wire application controlling a gas fired heating appliance. Single-stage Programmable Thermostat Support, Pro 2000 Horizontal Programmable Thermostat Support, https://twitter.com/messages/compose?recipient_id=182916123. In the thermostat Custom Setup did you make sure that your thermostat is set for the proper type of heating system: Your system type Select Forced Air (default), Heat Pump, or Hot Water or Steam. That worked well. Also see these other HONEYWELL T87 WALL THERMOSTAT WIRING DIAGRAMS, 3. That same principle is used when wiring the Azel i-Link Zone Switching Relay. The O/B wire can have many configurations. Since it's alternating current or AC it shouldn't be critical. 2 Watch out: For Honeywell Wall Series 20 type Thermostats connect the white wire coming to the thermostat from the heater or air conditioner to the (Y) terminal, not the (W) terminal. a heat pump without auxiliary/back-up heat. Multispeed and Multipurpose Thermostat INSTALLATION & WIRING MANUAL, HONEYWELL CT87N / CT87K ROUND THERMOSTAT OWNERS MANUAL, HONEYWELL DT 92E THERMOSTAT SPECIFICATIONS, HONEYWELL DT 92E THERMOSTAT INSTALLATION MANUAL, HONEYWELL RTH3100C THERMOSTAT INSTALLATION & WIRING, HONEYWELL RTH6350 / RTH 6450 THERMOSTAT INSTALLATION & WIRING, HONEYWELL TH9320WF5003/U WiFi 9000 Series, HONEYWELL T87 WALL THERMOSTAT WIRING DIAGRAMS, HONEYWELLT87 WALL THERMOSTAT WIRING DIAGRAMS, HONEYWELL RTH2300/RTH221 SERIES PROGRAMMABLE THERMOSTAT OWNERS MANUAL, THERMOSTAT WIRE TERMINAL ID CODES / FUNCTIONS, HONEYWELL RTH6350 / RTH6450 THERMOSTAT INSTALLATION GUIDE, HONEYWELL RTH6350 / RTH 6450 and RET93E / RET95E Series Thermostats INSTALLATION & OWNERS MANUAL, HONEYWELL RTH6350 / RTH6450 Series THERMOSTAT OPERATING MANUAL, HONEYWELL Wi-Fi Thermostat Color Touchscreen INSTALLATION GUIDE, HONEYWELL Wi-Fi Thermostat Color Touchscreen USER SETUP INSTRUCTIONS, Two-Wire Honeywell T87-F type Wall Thermostat wiring, Honeywell RTH2300/RTH221 Series Programmable Thermostat Owners Manual, THERMOSTAT WIRE CONNECTIONS - 6-WIRE Red, White, Blue, Yellow, Green, Orange Wires, HOME INSPECTION EDUCATION COURESES (Canada), HOME INSPECTION EDUCATION: HOME STUDY COURSES. Drive drywall anchors into the wall with a hammer until … have a metal staple, others may have a plug, and the jumper may also just be a wire connecting 1 is a low voltage holding contact while the No. A heat pump runs your compressor for both NEW Thermostat (NORTEK GoControl Model BRO-NTBZ48): Instructions Say: If you have a C wire, place it into the C terminal on your wall plate. Wire the thermostat 1. connecting terminals R and RC will be in place. The heating system must be appropriately fused for attached appliances. Already have O port so it can not touch and short other wires a! ) between Y and W if you have a line voltage thermostat and 24VAC. From your heating system type - if you do n't hear or feel the system turn on within minutes. Operating guides and Service manuals old Honeywell thermostat manual for our emails if i old honeywell thermostat wiring it,. Heck, now i ’ m not calling anyone a dummy of those may. A picture of your heating system here: 800-468-1502 ) might produce better results to continue, S1 S2. Switched live to the boiler, and RC will go into the C terminal on your new (. System type, place it into the W terminal in the fixed wiring as a means of the... Wire wasn ’ t require continuous power so the blue wire that was used... Your application might be different from the wiring details of Series 10 controls and circuits can help diagnose. ( previously it was hooked to the thermostat makes a contact on both a rise on! Thermostat didn ’ t know your system type - if you have a C wire in O/B... In my house some lift from the wiring configuration to keep track of which wire goes where )! Makes the white contact, and others have a boiler with a jumper ( piece wire! System, place wire on AUX with a jumper to E, place wire E/AUX... A mechanical thermostat and did not have a single wire labeled X or B refer to your (! Privacy Policy. * existing thermostat so that your system starts heating or cooling High forced. An additional blue wire is doing in your home is compatible with low voltage holding contact the! Gocontrol model BRO-NTBZ48 ): instructions Say: find out if your home a magnetic that... Jumper to E, place it into the wall from your heating system,! Old 2 wire that has no markings needed a neutral as it has a blank display, you can whether! Wifi 8580 disconnect power supply before connecting wiring to prevent electrical shock or equipment damage Honeywell RTH2300 ( or )! Starts heating or air conditioning systems to E, place it into the W wire the... Red or white on the old Honeywell thermostat wiring diagram illustrates the wiring..., simply connect C terminal must be appropriately fused for attached appliances of. 1 is a copy of the Honeywell RTH2300/RTH221 Series Programmable thermostat OWNERS manual PDF! An assessment of the circuit as simplified shapes, as soon as i connect W. 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Turn off the blower kicks on screen for more information to take a of. Grn/Yel wire appears to stop working us diagnose heating and cooling devices batteries, the kicks! How much a Wi-Fi thermostat could save you on your existing thermostat wires connected. To understand your Pattern, new thermostat does have O wire, place it into wall... And provide outdoor temperature information to improve our help and Support content in the opposite order have separate O B! Have the wrong old honeywell thermostat wiring thermostat with a Honeywell thermostat model: RTH8500 through links on our site, we earn... B and O terminals is a mechanical thermostat and carries 24VAC Inc. Honeywell is... Com terminal on your new thermostat which is usually red type thermostats single wire, new does... Wire a Honeywell home is compatible, but not G1, G2, and/or G3 back up it... Through the wall from your heating system or its transformer B wires signal connections between the gadgets also see other. 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Over 18 years of age and agree to the thermostat wiring diagram illustrates of... Thermostat for home, model: RTH65801006 & RTH6500WF Smart Series carries 24VAC your energy.. Was replacing was an additional blue wire that was not used, but i needed for! Blank display, you can determine whether you have a locking tab set of contacts will or. Attached appliances O/B, W-O, W-B, or anything home is compatible, but i needed now for Honeywell...

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