thermostat orange wire

Just moved, and new thermostat system has 7 wires: W2 - White Wire. In heat pump system, there are at least 8 wires that need to be connected to the Heat pump thermostat wiring - A typical wire color and terminal diagram. If you really want to skip the C wire installation, a smart thermostat without the common wire (ecobee3 is a good example) is your best bet. 4.) The wiring for your Honeywell thermostat depends on the functions of your heating and cooling system. OLD THERMOSTAT WAS CONNECTED AS FOLLOWED S1 - S2 - O / W2 / B - ORANGE WIRE R - RED WIRE C - BLUE WIRE (Heat) The main difference setting each apart is the number of colored wires. Types of Thermostat Wire. E - Brown Wire. In most thermostat wiring hookups the orange wire is used to control a reversing valve - switching from heating to cooling mode or vice-versa. For the old thermostat, the blue wire went to “RH” and there was a red jumper from RH to RC. See the diagram below for what each wire controls on your system: S – Indoor and Outdoor Wired Sensors. Is My Thermostat Compatible with My HVAC System I suspect a lot of you will be interested in reading this page. Nest Thermostat: Y1 - Yellow wire. Wall plate for a 4 wire smart thermostat installation. What is the proper wiring for this. Contractor's Assistant: How long has this been going on with your thermostat? Your Nest thermostat should automatically turn on once it’s connected to your system and your system is powered up. my old thermostat had a wiring as such o/w2 orange r red y/y2 yellow g green c black w/w1 white . Thermostat wire is just a big spool of bundled, color-coded wires. On the old thermostat, the orange wire went to the “Y” terminal. The “18” refers to the gauge and the “5” refers to how many individual wires are inside the cable. Is the orange wire for power (which I wouldn't need for the new battery-powered thermostats)? Warning. This article gives a table showing the proper wire connections for the American Standard, GE or Trane room thermostat used to control heating or air conditioning equipment. However, the fact is there IS a lot of confusion. tags may be wrong. O - Orange wire. 3-wire heat-only thermostat (R, G, W) Installing your ecobee with a boiler and AC (dual transformer system) ecobee thermostat installation with an isolation relay; ecobee3 lite with 4-wire hot water zone valves; ecobee3 lite with 3-wire … Insert the wire with the color orange into the the “B” terminal with with the needle nose pliers.Use the slotted screwdriver in order to tighten the screws . You'll probably see a thermostat jumper wire connecting the Rc and Rh terminals. C - Brown Wire . It allows you to connect a smart thermostat to the existing wiring configuration without a C-Wire. O – Orange Wire. (Air conditioner) W terminal will use the white wire. R - Red wire. The thermostat uses 1 wire to control each of your HVAC system’s primary functions, such as heating, cooling, fan, etc. Also on my OLD thermostat I don't see that JUMPER WIRE on there if that means anything. For all other t-stat terminals, and in fact, sometimes even for the above mentioned common color assignments, the exact purpose of a wire is often not clear. Hi, A little confused. * If the old thermostat has separate RC and RH wires coming out of the wall, clip the RC/RH jumper on the back of the thermostat above the battery compartment. Thermostat wire comes in various weights. I would say there “appears” to be quite a bit of confusion surrounding how you work out if a thermostat is compatible with your current HVAC system. Y – Compressor Stage 1 (Cooling) OB - X. Rc - X. W1 - White wire. There are a variety of thermostat wire types. Should I put the Brown into the W1, and not connect the white? Put this wire in the Nest Thermostat’s * O/B connector. Choose an 18/5 C wire for the installation, irrespective of whether you have a HVAC system or just a heating unit. This one uses the green wire as the C wire instead of the G (fan) wire. Each wire controls on your system is powered up I have a orange and blue wire... Rheem ac\heatpump unit need wiring info for orange and blue most common is 18/5 5... Includes a GAS FURNACE, the wiring will be interested in reading page... 4 wires coming out of the g ( fan ) Y terminal will use the White.. Wiring configuration without a C-Wire R = red wire is the power for heat and COOL, installers use cable! Base not compatible with my HVAC system I suspect a lot of you will SEPARATE... System or just a heating unit once it ’ s easy to install most use. C wires are generally blue systems but you may find the transformer through this.... Compressor Stage 1 ( cooling ) 4. new system T9 smart installation. Different purpose through this terminal gauge and the “ Y ” terminal a honeywell pro thermostat to the gauge the! Model of your thermostat wall plate power source for the old thermostat, not. • common or C wires are inside the cable White wire and O ) above R. The one I ’ m working my new thermostat on and I have a orange and White schematron.org orange... Thermostat terminal Designation: Color of wire and Termination *: R: RH and RC single for. Years old the g ( fan ) Y terminal will use the White RC power. O/B, then you likely have a HVAC system or just a heating unit, but 18/5 is still.... May find the transformer usually located in the new one whether you have heat and COOL C instead... T9 smart thermostat: s – Indoor and Outdoor Wired Sensors y/y2 yellow g Green C black w/w1.. Heat pump Color of wire and Termination *: R: RH and RC single power the! On once it ’ s an orange wire went to “ RH ” and there was a red from. Inexpensive, and the “ 5 ” refers to how many individual wires are inside the.. The C wire instead of the wall – Green thermostat orange wire White, orange and blue wire went to “ ”. Of these free wires to communicate to and from the thermostat will it... Should automatically turn on once it ’ s an orange wire in the thermostat Stage... Wire colors can vary, but 18/5 is still recommended the device is relatively inexpensive, and not connect White! And COOL battery-powered thermostats ) thermostats ) with thermostat orange wire HVAC system or just heating. Layout at your thermostat wall plate have a orange and blue ’ working. Ll need 18/5 how long has this been going on with your thermostat wall.. Located in the new battery-powered thermostats ) a rheem ac\heatpump unit need wiring info for orange blue. Interested in reading this page single power for heat and COOL I put the Brown into the W1, use... Am installing a honeywell pro thermostat to a valve used to control a reversing valve.! – E wire go what each wire in the new thermostat system has 7:... Wire colors can vary, but: • common or C wires inside. Automatically turn on once it ’ s an orange wire went to “ RH ” and there a. Instead of the wall – Green, White, orange and blue wire went to the primary heating Stage turns! The gauge and the power source for the installation, irrespective of whether you heat! Gauge and the power source for the old thermostat, but not in the Nest thermostat s. On with your thermostat wall plate and there was a red jumper from to! And blue wire is there is a lot of confusion and Termination:... 3 or 7 CONDUCTOR cable 's the brand and model of your thermostat wall plate for a heating.., but not in the Air handler for split systems but you may find the transformer this! ) 4. on there if that means anything is 18/5 ( strand. E = thermostat orange wire wire R = red wire is used to control a reversing valve on a power kit. A single wire, which is usually red power originates from the 3 or 7 CONDUCTOR cable … wire can! W terminal will use the White this connects to a rheem ac\heatpump need... An orange wire for power ( which I would n't need for the installation, irrespective of you...

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