I cannot say hoy much I appreciate this tutorial. I have been listening over a dozen of guys (so much time wasted) but you are the only one that explained what are the wire connections for, and could make the difference between each ones features, so that I know what is suitable for me. It is incredible how everybody speaks about this C wire but none is able to explain what it is as you are. My appreciation from over the ocean!
@mandifalconer35803 жыл бұрын
Thank you so much for this video. I bought a Nest thermostat for my house and unfortunately my husband passed unexpectedly before it was installed. After some time I decided I wanted to have the new Nest installed, but folks wanted either a lot of money or they didn't have the time to help me. With your video and wonderful explanation, I was able to install my Nest and have it working all by myself. I got really nervous because all the other videos were talking about 4 wires and when I popped off my old thermostat I had 6 wires. And to add to the confusion, one of them wasn't connected but seemed important (turns out I already had a blue common wire). Thank you!
@jordanarredondo63613 жыл бұрын
I'm so sorry for your loss. 😥
@TheStefanieperu012 жыл бұрын
I'm at this spot now. I have 6 wires :(
@rickkleiner33652 жыл бұрын
Thanks for the video great job I had the job done it 5 min .
@jkyle6465 Жыл бұрын
Holy cow, thank God you made this video. Old houses and new modifications are a nightmare.
@jackwiley14803 жыл бұрын
Standing ovation and a round of applause for this guy! Thank you so much :-)
@janetlong95103 жыл бұрын
OMG you are a life safer with this video and your heat pump info about people in the south. I live in Florida and didn't know I had one and I could only get the heat to blow until I moved orange to the OB slot. Yay, AC finally.
@EhrenSixon2 жыл бұрын
Thank you for this video. I have 4 wires and in my original thermostat, the power wire was connected to Rh while a jumper wire was connected from Rh to Rc. When I installed my Nest, I did not know whether to install the power wire to Rc or Rh. In the end, I installed it to Rh, but I was still hesitant and I did not know much about it. I'm from South Florida where the weather is quite often hot. Your video provided me confirmation when you said it can be either Rh or Rc for the power wire to be connected to.
@johnwest21283 жыл бұрын
That O/B wire got me. Thanks for setting me straight. You saved me lots of money.
@brianthecox2 жыл бұрын
I installed my nest in the winter and come spring I realized I had no a/c. This video solved my problem!!! Thank you so much! You’re awesome
@SvoBrianRobles Жыл бұрын
I had the same problem how did you solve it
@brianthecox Жыл бұрын
Don’t remember but I followed this video and fixed it. Lol 😅
@DUrena-ni3ei2 жыл бұрын
This is the most thorough video explanation I've seen. You definitely know what you are talking about
@futuradrama3 жыл бұрын
Like dis dude, broke down da meaning ov every wire and what it does. Damn sure needed dat info for sure👍🏿👍🏿👍🏿👍🏿👍🏿
@chieffschannel83363 жыл бұрын
Thank you so much for this immensely helpful video. Your thorough work and explanation made all the difference!
@aeronauta20112 жыл бұрын
GREAT EXPLANATION, THANK YOU
@nikhilpatel51004 жыл бұрын
one f the best explainations on all of the different configurations. Go through the whole or fast forward for your current setup and you should be ABLE TO WIRW AND SET UP NEST EASILY. MOST EDUCATIONAL AND STRAIGHT FORWARD all in one. better than nest site. Thank you for your great work.
@rajoshcj9 күн бұрын
much appreciated ..very helpful video and simple as it can be.thank you!
@ChristinaD19964 жыл бұрын
Thanks for your video, just by explaining what the OB terminal does, you helped explain to me why my fan would go on non-stop 24/7. It was because I had a wire in OB instead of in G. Moved OB to G and now the nest recognizes I have a fan and I can turn it off. Saved me lots of hastle, thanks!
@MamaKittMcKay2 жыл бұрын
I'm literally crying rn, we've been almost 2 weeks without heat -in WI, in January, in a cold snap. We bought this house last September, and the previous owners had installed a Buderus Logamax GB-142 condensing boiler for in-floor radiant heat. the wiring job is... less than obvious. Since the Buderus is a two wire system (white and red), there's no common wire, and whoever did the wiring spliced a brown wire to the red wire from the boiler, probably to not confuse it with the red wire from the AC. The white wire from the AC was spliced into a black wire - again, probably to avoid confusion. Avoid confusion, it *did not* Because of the wiring shenanigans, the Nest was freaking out about the wire setup. I finally fixed this by seeing your video and putting the brown wire (red from boiler) into the w2 slot and the black wire into RC. Suddenly the Nest recognized the wiring and now I'm waiting for it to have enough juice to connect to the wi fi. Thank you so much, I would never have enough for a repair tech, as I'm on SSI.
@jmack842 жыл бұрын
Hey Sir! Excellent video! Thank you. I have a split system (One hvac system with 2 thermostats). My downstairs nest has been working perfectly however my wife recently bought me a Nest for the upstairs to replace an old thermostat (which works fine). The new Nest gives me troubles. When I first installed it I had to charge it via USB and then it worked for a pretty good while. However came home one day and it was now stuck in air-conditioning mode (the upstairs was freezing)! The only way to stop it was to remove the yellow wire. I contacted Nest and after an hour and a half of troubleshooting they sent me a new base. The Nest still doesn’t charge unless I throw it on a USB charger AND now I get intermittent “no power to Y1 or RC errors. I have a 4 wire setup. Y1, G, Rc and W1. Btw that is exactly how the downstairs Nest is wired and it’s been working for 2ish years. Do you have a video that explains this? Thank you!
@alhoughton52056 ай бұрын
Such a great video! This really helped me understand how this works! Thank you!
@OneHourSmartHome5 ай бұрын
Great to hear, thanks for watching and subscribing!
@chelin70232 жыл бұрын
Seven wires heat pump system; all I needed to know I found it in your video. Thank you!
@CryptoData2 жыл бұрын
Thanks man! Awesome video that answered my questions about Rc and Rh slots :)
@armandomartinez65302 жыл бұрын
great video very good explanation for older systems that have more than 5 wires and that is the problem with the others videos that explain the easy replacement of a thermostat and not the confusing old thermostat like my in my house that carry about 9 or 10 wires that are so confusing that I am intimidate to install a new thermostat like the Nest for the little information and experience from my part ,thanks for you explanation
@dante04srt4 жыл бұрын
Great explanation. I had to hook a few of these up for a client and am not familiar with HVAC systems so this helped tremendously. Thanks
@OneHourSmartHome4 жыл бұрын
Great to hear. Thanks for subscribing!
@CheffPJ4 жыл бұрын
This video was exactly what I needed since I didn't take a picture of the last thermostat! You also gave me a pro tip (obvious in hindsight) to go look at the control panel - DUH! All the wires at the control panel were clearly marked, etc.
@natgasf7236 Жыл бұрын
Thanks, just bought two Nests and have a oil boiler. Will work on my R & W
@tammylupton7255 Жыл бұрын
Thank you, this video was very helpful to us, we were wired wrong and your expertise showed us what we were doing wrong.
@Broncs783 жыл бұрын
Thank you for this posting buddy. RC and RH had me confused thx very much for helping. Hv a blessed day!
@OneHourSmartHome3 жыл бұрын
You too thanks for the comment and subscribing. Have a great rest of your weeekend!
@haciendafamiliallamas25494 жыл бұрын
Wooooow!!..super clear.. understanfable explanation! That's what we are talking about... I have a feeling that you really know what you are talking about!!... Million Thanks!!.. We appreciate your very valuable time!!..
@groovyfpv784918 күн бұрын
after watching this video I feel like im an expert lol. thank you for the clear explanation
@elevatedad Жыл бұрын
thank you for sharing this! I am looking to upgrade my thermostat. And your video is very helpful!❤
@johnwebb76992 жыл бұрын
Brilliant video! This answered every single question I had with regards to Nest wiring configurations. THANK YOU!
@AK-yn4br2 жыл бұрын
Best explanation I saw so far, Thank you!
@mananarora73273 жыл бұрын
Thank you so much for this video. Because of your video I was able to install my Nest thermostat on my own. I appreciate that.
@mdiazdiaz56123 жыл бұрын
After watching this video I follow the steps and it was all so easy after that. 1. I removed the old thermostat. 2. Took a picture of the current wiring. 3. I opened the manual that came with the Ecobee3 thermostat which has many wiring drawings then i compared the wiring in the manual with the wiring of the old thermostat and took a picture of it. 4. Since I was able to find match the wiring of the old thermostat with the Wiring of Ecobee3 there was no need in using the adapter kit that came with Ecobee3. 5. I simply wired my Ecobee3 exactly as the diagram in the manual and that was it it worked fine, no issues.
@OneHourSmartHome3 жыл бұрын
Great work! Thanks for watching.
@RichSmith-e4g Жыл бұрын
Excellent demonstration. perfect!
@mannyguillen3603 Жыл бұрын
super helpful!! thank you
@OneHourSmartHome Жыл бұрын
Glad it was helpful!
@HunterKiller1132 жыл бұрын
This really helped. Thanks for posting
@billnict14 жыл бұрын
Thank you, your video helped me install my new Nest Learning Thermostat on my single-stage system...
@OneHourSmartHome4 жыл бұрын
Nice work!
@HumaQaiser-z3b Жыл бұрын
Thank you so much, stay blessed...
@rogerjackman28552 жыл бұрын
Thank you for the video, I have a question with regards to heat pump wiring I have a W2 and an E along with O/B, R, G, C, and Y The nest only has six connectors Y, C, W, G, R, O/B where do we go from here?
@michaelswain1602 жыл бұрын
Thanks for the help, I was able to figure out in my dual-zone home that the previous owners had put ONE zone's blue wire into the Common Wire slot, and had put the OTHER zone's blue wire into the Blue slot (because it's blue, so obviously it goes there, right? Pffft). I don't have a heat pump and was able to figure it out with your help!
@frantz-ericcelestin66934 жыл бұрын
Thanks a lot I was struggling with my nest thermostat because we had lost the original wiring from our old thermostat but now I’m all good. Great video thanks a lot
@dinodesario8312 жыл бұрын
This videos was very helpful for installing my nest 👍🏼
@ChrisComeau3 жыл бұрын
Exactly what I was looking for, thanks!
@roderickdeveaux86344 жыл бұрын
had my heat wire going to heat pump since i completely fllowed old tthermostat setup. changed it after watching video now all good
@Tmac20163 жыл бұрын
What If you have an E wire
@TroTipTriTec2 жыл бұрын
This video is the best explanation I have seen. It got me thinking….. Is it possible to use the * circuit to kick on a 24v/120v relay in order to control a booster fan circuit? My booster fans draw more than the one amp that my York furnace supports. I connected a relay to the wiring for the humidistat. I connected it before the humidistat so that the relay would kick on whether I needed humidity or not. However, the booster fans only kick on when heat is on and not when the blower kicks on.
@petersonfamily6223 Жыл бұрын
Thanks, our Nest has worked for 6 months now, but one of our 4 Nest Learning thermostats just lost WiFi (Google is replacing it). During the troubleshooting phase, I learned about the battery recharging and voltage amounts seen under Power in the Nest Options (Thanks for that info as well). Our batteries were all 3.7 volts, with the lin at 20 or less. I believe connecting the Common is a no-brainer if the wire (Blue). In our case, we have 5 wire runs to the thermostats, and the Blue is not being used. So I will connect the Blue unused wire at the boiler and connect to the "C" at the thermostat. Our wiring at the furnace Accel CS - System 2000 - EK-1C is not as intuitive as shown in some videos, but we have our boiler installer coming out for our first annual service, so I will have them connect the Blue wire to 24V at the furnace.
@blackmarkettrucking58216 ай бұрын
God bless you sir thanks for you're help.
@slc9800gtx Жыл бұрын
Great video.
@PedroGarcia-xq7un Жыл бұрын
Awesome presentation 👏
@monaphil65684 жыл бұрын
I've been searching for wiring help for the Google Nest Thermostat, not the Learning Thermostat, or the Nest Thermostat e. I do not have a C wire. I finally found a solution by purchasing an AC adaptor from Amazon for $20 with 24v to use as a C wire. I'm replacing a very old round Honeywell mercury thermostat with only a red and white wire. Attached one end of the adaptor into the C, and the other end into the R with the red wire. Finally works correctly.
@williammarra89034 жыл бұрын
This is a very well done presentation - thank you for making it so clear!
@chass1052 жыл бұрын
I have heat pump system electric Heat-A/C - I bought a nest and I am trying to make sure I am using the correct terminals. The original used Brown (E), Red (R), White (Aux), Yellow (Y), Green (G), Blue (C), Orange (O). For the Nest it is clear which ones to use except for the Brown (E). I have emergency heat so Do I place this on the W1 or asterisk? Thank you
@elvissanchez89853 жыл бұрын
Thank you for this video!!!
@bruce4399 Жыл бұрын
Excellent video, thanks
@Angelotiangel2 жыл бұрын
Great video. I am just installing a learning Nest thermostat and and my old Honeywell thermostat has 6 wires and the blue wire was connected to W2. I don't have heat pump or dehumidifier . Should I install that wire in the W2 connection of the nest thermostat? Thank you so much for your help
@wmonroe213 жыл бұрын
Dude… Can’t thank you enough for the info. Great video.
@Dhi-fe5eu2 жыл бұрын
I have 2 red wires going into the RH wire. One wire is a larger gauge than the other. I’m your opinion, which one could I stick in the R slot since I cannot put two wires in there. Great video. You spoke very clear.
@RobertAcevedo Жыл бұрын
James - Thank you so much for explaining all of this in such a clear and understandable way. I have a question - I have a system that has two G wires - for HIGH and LOW fan. Do you have a video that explains where that wire should be connected? Oddly the thermostat appears to be getting power - yet it gives an e75 error indicating that there is nothing connected to y1 or w1 even though the correct wires are connected to the terminals. When I look up the error on the nest site - it says invalid error. I am not sure if this 7th wire has anything to do with it…. so I was hoping you might have another video that could help. Again - Thanks so much…
@jimmyjames6318 Жыл бұрын
Great job 👍
@mdiazdiaz56123 жыл бұрын
Great explanation, thanks i was worried because when i removed my thermostat the RED was connected to RC (Honeywell)and on the new thermostat (nest) the RED get's connected to RH. Thanks for educating us.
@OneHourSmartHome3 жыл бұрын
You're welcome! Thanks for watching and the comment.
@sarahudspeth86142 жыл бұрын
Saved me. Thank you!
@mark.r89003 ай бұрын
Great video. I have a forced air gas furnace used only for heating. Also have a air handler with outdoor condenser used only for cooling. When I connect air handler(cooling) to Rc and furnace(heating) to Rh. The furnace will not turned on. But if i removed the Rc, then furnace works fine. Furnace only has R and W1. Air handler has R, G Y,C. Can my Nest control two separate systems? Thanks.
@mrstanskaggs12 жыл бұрын
If my OB does not get power through the NEST, the AC does not come on. I seem to get heat when my NEST is set for AC. My system has been wired and operational for 3 years.. I believe a software update was done remotely by Google in November or October.. and this spring I could not get AC when I switched over to cooling mode. I have put my old dumb thermostat on to eliminate the chance it was a reversing valve or other issue with hardware.. works correctly and OK with old thermostat.. What are your thoughts? Heat works, and diagnostics says NEST is OK.. I have a heat pump system with six wires (Y1, G, OB, RC, W2, & C)... NEST says it is wired correctly and it has been running for nearly 3 years good... Hope you have an idea I can utilize... thanks friend!
@shahriarzolfaqari49202 жыл бұрын
thank you for this educational video. i have an office running in a same unit a/c with 2 different wifi now the nest is in other office beside me. can i add my own nest for my office i have 5 wire would it be possible to use the same color code for the new one getting branch out from other office.
@YappaTJM Жыл бұрын
Thanks got my nest installed in less then 5 mins.
@wereverywhere2.0373 жыл бұрын
I had a 3rd but it wasn't kicking on my condenser all the time. My old had a jumper rc and rh the nest didn't suggest using a jumper. It would work good but sometimes get really hot in the house.
@linggu28463 жыл бұрын
What if I do have a dual fuel system and one single Red wire. Where should I put it in? Rc or Rh?
@linggu28463 жыл бұрын
By the way I have cooling and steam boiling system that works in the old thermostat but I don't think I have W wires..... Which is weird after seeing this
@tubbzmack66642 жыл бұрын
You the man! Thanks!
@teklesenbetgebreamlak73653 жыл бұрын
Thanyou for clear explanation l have a ghesstion is nest thermostat work good l replace to trane single stage heat pump if you can help me how they connect
@redeye2594 жыл бұрын
Great video, do you happen to have any Nest videos for a heat pump system with a 2 speed fan?
@MeR-md1jq Жыл бұрын
Thanks for the video. I have a standard hvac system and air conditioner but my thermostat has the red wire going into RC with a jumper going to RH. I'm looking at the installation video for the regular Nest...not the learning or the E....and it only has one spot for R. Is this going to be an issue? Also, if I buy a nest learning, which has spots for both RC and RH, do I run a jumper from RC to RH? Thanks!
@JD987abc2 ай бұрын
Which nest model did you use? I have a two wire (red and white) gas boiler that is zoned for first floor and second floor. Both are two wire, red and white. What nest model do I need? Your advice would welcome. Thx. Joseph.
@marcossoardo76922 жыл бұрын
Thanks bro, it was exactly the explanation I need
@FourAiur3 жыл бұрын
Amazing video. Thanks
@PopRockLipstick2 жыл бұрын
I have a 2 stage air handler and it’s mostly for heat but has y1 and y2 and only a w1. We find the air doesn’t seem to push while the heat is on. No heat pump is hooked up yet. Will be just not this winter) Would we be able to switch the y2 to the w2 in the nest and in the air handler or how would we go about that?
@brandondp942 ай бұрын
Hi, Love your nest thermostat videos! I ordered an AC transformer/adapter like you recommended which plugs into your typical wall outlet - as I have two nest thermostats which utilize the boiler for heat (radiant on one, baseboard on the other), and utilize the A/Cs on their respective floors. So my wire set-up is the odd one you touched on briefly (Y, G, and RC. W and RH). The problem I'm having is the nest short cycles the boiler and will make it kick/click on and off repeatedly and too rapidly. I connected the A/C transformer to both RH and C, as I lack the common wire, but it didn't recognize the Common Wire. Can I connect the transformer to both the RC and RH only, and cap those existing wires? Thank you very much in advance!
@jackperlmutter59572 жыл бұрын
Question, Goodman heat pump, with y1, y2, r and c wires available. If I just want to use it for AC can I just connect the y1 and c wires to the wiring block in the Goodman has furnace. Is using the 2 stage heat pump feature worth it. My furnace wiring block only has a y terminal. Would I just run the y2 back to the nest thermostat if I to use the y2 terminal for 2 stage? Thoughts? Thank you, Jack Perlmutter
@aquarius19243 жыл бұрын
Hello! I am installing a Nest Thermostat. Where do I connect the Brown wire coming from the wall? Happy New Year! Thank you.
@drm36132 жыл бұрын
14:10 You mentioned that you can run a nest thermostat with only two wires and thats what I'm considering to do. I have an old Honeywell heat-only thermostat that is a single-pole thermostat with a black and white wire that runs a gas furnace. Is it possible to just use those two wires to run a Nest thermostat? I'm expecting to need a Common wire since I'd like to keep the Wifi features running but any help is appreciated.
@viejournal41072 жыл бұрын
Same problem as my heat-only White & Rodgers that only has two wires to run a gas furnace heating system. I'm sitting on the fence thinking whether I should get a Nest Themostat or just stick with the old W&R one.
@jaxsi44812 жыл бұрын
Hi, thanks for the video. I live in the north east and I have a heat pump system. There are 7 cables in my system: red (Rh), white (W1), yellow (Y1), green (G), blue (C), orange (OB), brown (W2). How do I know if the wires are connected in the correct sections of the nest diagram? Is there a way to check in my hvac system that the wires colors mean what they normally mean? Thank you!
@ozer.dogus02 жыл бұрын
Hey I have boil heat. my old system has No, Com and Nc. What are they going to connect on nest ? Thank you!!
@kylecaress77532 жыл бұрын
Thanks for answering my rc rh question …..it’s hot af in my house and my family is sweating waiting for me to get this installed….I owe you a beer lol
@Litld022 жыл бұрын
Same
@cjvx72082 жыл бұрын
Will a two cable heating only system be a able to charge the nest learning thermostat??
@omidrajaee79966 ай бұрын
I had to connect my brown cable to OB to make Nest termostat on! Do you thin this is a right wiring?
@turnerherbek6912 Жыл бұрын
Thank you Mike Napoli
@ADAngeloM Жыл бұрын
I have a 2 stage furnace. Should there be two wires for the "w" terminals or 1 wire that plugs into "W2"?
@matthewcarmona55372 жыл бұрын
thank you so much for your video. I have Question how would wire up a Nest thermostat I want ( 1st Stage heat) W1 to turn on the gas boiler radiant heat and want W2 (2nd stage heat to turn on heat pump ( Y ) and I want (1st stage cooling) to be Y,O. for cooling.
@pauldobisz15188 ай бұрын
Thanks this explains a lot for us novices😊😊😊
@loulocs2 жыл бұрын
So I have Carrier brand two stage heating and cooling unit. Carrier installed everything including it's branded thermostat which only has a two wire connection. I just purchased a Nest Gen 3 thermostat and I'm now perplexed on how to wire it. Any tips will greatly appreciated.
@shawnvosburg Жыл бұрын
Great video! I have a slightly different set up than you spoke of. I have a four wire system, three match your video; G, Rh, & Y1. My old thermostat has a wire in the Y/O terminal. Am I wrong to assume this is heat and should be put in the W1 terminal of the Next Learning Thermostat? Thank you!
@mikehixonatrealtytrendsllc99882 жыл бұрын
I don't see any comments on the Aprilaire 800 steam humidifier? Does it need a control relay and an additional jumper wire from the relay 24v common to the "C" connection?
@ThePedrozas Жыл бұрын
What if I have a jumper from RC-RH? Will the best turn on the heat if I have it plugged into the rc only?
@Ynot-Tony-1 Жыл бұрын
I have a two-zone heating system with a power issue. I have a Honeywell thermostat upstairs and recently installed a Google Learning Nest 3rd Gen in the downstairs. None of the wiring has been changed at the furnace and they are both two-wire (red & white). When I increase the temperature upstairs, I get an error message on the Google Learning Nest that there is a power issue, and when I turn off the upstairs thermostat the error message goes away. My question is can I wire both thermostat wires to the Google Learning Nest (Down - Rh+W1 and Up - Rc+W2) to control both heating zones with one thermostat and the two sensors that came with it? I’m looking at your diagram at (7:00) where you say Rc & Rh are basically the same and I have no AC just heat.
@CoachTrudeau2 жыл бұрын
Great explanation on all. I bought the new nest gen 3, nothing was working according to their directions. I had a 4 wire system, but the white wire was connected to OB. You said in the video to put that wire on W1. I did, everything works now. It's also nice to know what all those wire spots do. Our business has 3 furnaces, and now all 3 are working properly now. Thank you. FYI, I called OnTech (Google tech), he showed up today, and I asked him about it all anyway, and I knew more than he did! (Just from your video). My only question that I still do not have answered: How can I get the fan to run on "high" all the time. The google help says it can be done with my Learning Nest, but I cannot get it, and the Google Tech was clueless (as always).
@christopherkarpinski94323 жыл бұрын
My 2 wire system used w for power is this why I’m having issues? Should i just swap them
@tilltill20719 күн бұрын
I know this video is old, but its content is relevant to my current issue. I recently had a two stage furnace and condenser installed in my renovated home. But in my area temperatures dropped to around 10 degrees, even less when factoring the wind chill. During those days, my furnace seemed to struggle to warm the house and would (as indicated by Nest thermostat) take up to 2 hours to reach a desired 5-degree temp increase. Your video helped me understand that I should have wires connected to the y2 and w2 connections also instead of just the y1 and w1 connections. Undoubtedly, my system is wired incompletely. What are the consequences of the wiring error? Am I correct to assume that because the connection to the w2 terminal has been omitted, my furnace will run only in stage one, meaning at the low speed only? That would explain the lag in the system on the colder days. (Still waiting for the HVAC contractor to address this issue. ). Your thoughts would be appreciated. Thanks.
@jaxon74484 жыл бұрын
Great Video well done sir.
@OneHourSmartHome4 жыл бұрын
Thanks for the visit
@MightyMike5103 жыл бұрын
Great video. After I connected my C wire to the furnace control board and Nest, my app now shows thermostat is online.
@kewalarun2 жыл бұрын
I have one Lennox AC unit which is controlled by two Lennox M30 thermostats. One of the thermostats installed in my Bed Room has 5 wires only i.e. R, Y1, W1, G and C, the living room thermostat has all these wires with additional Orange wire connected to ACC2. I assume I can connect the R wire either to Rc or Rh, however where shall I connect the Orange wire which is connected to the ACC2 on M30 thermostat? Any help would be greatly appreciated.