Question about Honeywell Focus 6300B 5-2 Days Programmable Thermostat Heater

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Need to hook up a honeywell rth2310b with only 2 wires!

Don't know where to hook them to

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In some situations the wall plate has no markings, there are just two terminals hooked up to the control wire for the heater. I just installed this thermostat on my gas fireplace. I connected the black wire to the Rc terminal and the white wire to the W terminal. With the thermostat set to heat it works perfectly. Thanks to johnptaylor for the help!

Posted on Jan 16, 2010

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The manual/schematic does not help in this situation.

If you're hooking up for the summer (A/C) use one white (white in my case) to the Y pole and the other (black in my case to the RB pole. Do the same on the controls for the A/C at the source (you'll have to figure out that for yourself if the poles are labelled different as mine are... depends on the furnace manufacturer where the A/C controls tie in.

Now, I have to switch back to heat.. For heat, if I remember right it's white to W and black to RB. Again, in my case, I have to change it at the furnace for the controls there as well since I swith from A/C to heat... back and forth as required.

It'd be much easier with only heat, central air means I have to change it twice a year or run new 5 wire cable (which I'm thinking about doing).

Good luck. It's a good unit.

Posted on Sep 30, 2009

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There should be a wireing diagram in the instructions or on the inside of the back when you take it off to hook up your wires. i know that they typically offer you more places to hook wires than you have wires and the colors are different. Just follow their instructions and it will be fine.

Posted on Jan 26, 2009

  • Michel Laprise Sr Dec 11, 2010

    I read the diagram and the instructions; and the solution on the blog is less confusing. In my case, I only had a black and a white wire and I managed to make it work after reading krys and johntaylor's comments. One must mention that the jumper between the Rc and Rb terminals must remain, otherwise the furnace will not respond.
    Thanks to tinytrees as well.

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tborn6
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SOURCE: I bought a rth2310b honeywell

on rh and w

Posted on Jan 26, 2009

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My old thermostat has 8 wires and I'm trying to figure out how to install a Honeywell Rth2310b thermostat.


The terminals on the old stat should be basically the same as on the new stat...with a couple exceptions anyway. Note the color of wire on each terminal before removing them and reconnect to the new stat on the same terminals. 8 wires typically indicate a heat pump, so in the configuration menu you'll have to tell it whether to energize the O terminal in cool or not. If you have individual wires on Rc and Rh terminals, you must remove the factory jumper between those two terminals on the new stat. If not, you'll burn out one of the two control transformers or possibly damage your new stat.

In the configuration menu, you'll have to tell it whether its a gas furnace or electric furnace, select the way the fan operates and possibly limit the cycles per hour on both heat and cool modes. There's a lot of subtle entries that need to be done to 'tailor' the new stat to your likings also.

I think it would be best to rely on someone thats a bit familiar with HVAC to change out your stat for you..... as once it is changed, all possible functions of the stat need to be verified as correct in operation.

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Wiring with only 2 wires; which terminals to connect?


See RC and RH, RC is for cool, RH is for heat, you wire the red wire to the RH or red terminal ,either one will work actually but we generally switch the hot leg of power, W is the heat circuit


wiring-only-2-wires-terminals-connect-cp4yufdp500qfugpjpa1ch44-2-0.jpg

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I just bought a Honeywell 5.2 Day RTH2300B Programmable thermostat to replace my old mercury thermostat for my gas fireplace. When I took of old thermostat it only has two wires. A white wire and a black...


I just installed a Honeywell 5.2 Day RTH2310B Programmable thermostat and I had to deal with the same situation: 2 wires, one white one black. After reading the edvice in one of the blog, the solution that worked for me was: BLACK ON Rc terminal and WHITE on W terminal. My furnace is running fine now. Hope it helps.

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Trying to hook up a RTH2310B thermostat to a wood pellet stove with only two wires.. How do I know where to connect them too?


Hey Brad432, this is what i did with the same RTH2310B thermostat and my harmon stove. You must have the heat sensor that plugs in the back of the stove to start with. Take your new wire from the stove to your thermostat, red to rh, white to one side of your sensor then other side of sensor to W on your thermostat. On your stove side set your room temp as high as it will go and let your programmable thermostat set the room temp. Works good for mine. Good Luck

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1 Answer

Honeywell RTH2310B Programmable Thermostat


i would check to see if thier is a jumper between RC and RH on the stat if no and the red wire is hooked to RH then you need to add a jumper to RC

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1 Answer

Wiring for a Honeywell RTH2310B


HONEYWELL WEBSITE:
Go to honeywell.com
Under red welcome sign
Bottom red highlighted box literature/image search
Type in thermostat model number
Click on arrow to right
Then click on the PDF files owners manual / installation instructions

Jan 10, 2009 | Honeywell Focus 6300B 5-2 Days...

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