Thermometer hook up to T-STAT

[edking603]

Hi,
New here and I found an old post of when someone put a thermostat on their pellet stove. I'm trying to do the same as this old post. I have an older Honeywell dial thermostat, (mercury), that I want to hook up to my new US Stove 5660. Us Stove says this should work. Followed instructions and it makes a different fan noise when I switch to T-STAT mode, but won't react to the call of the thermostat. Can anyone help?
Thanks,
Ed

 

[Lake Girl]

Sorry no one got back to you but welcome to the forum. I haven't hooked up a Tstat to our stove so can't give you any advice but hopefully bumping this to the top of the threads someone will chime in that can help.

Good luck...

 

[Phil Do's fire.]

Hi,
New here and I found an old post of when someone put a thermostat on their pellet stove. I'm trying to do the same as this old post. I have an older Honeywell dial thermostat, (mercury), that I want to hook up to my new US Stove 5660. Us Stove says this should work. Followed instructions and it makes a different fan noise when I switch to T-STAT mode, but won't react to the call of the thermostat. Can anyone help?
Thanks,
Ed

Try adjusting the heat anticipator setting on the Thermostat. If it doesn't have one then I wouldn't use it. Are you sure that you are using the correct terminals to hook it up to?

 

[Harvey Schneider]

Followed instructions and it makes a different fan noise when I switch to T-STAT mode, but won't react to the call of the thermostat. Can anyone help?

If it makes a different sound, it is responding in a way (just not what you expected).
Is the stove staying on all the time? That's what in infer from your statement, but it is not clear. Is your stove supposed to do a high/low or an on/off with a thermostat? If it is a high/low the change may be subtle enough that it is hard to tell that it changed at all.
Have you waited long enough? I don't know your stove, but some have to see a change in the call for heat for a few minutes before they will change modes

 

[mchasal]

Looking at the manual for your stove: (broken link removed to http://www.usstove.com/resources/OwnersManuals/English%20Owners%20Manuals/5660.pdf) Page 10

Verify that your thermostat wires are hooked to the proper terminals, should be left and middle (make sure you have the board oriented the same way as the photo when making the hookups. Also verify you're selecting the mode properly. Also make sure you have the heat level set at one of the higher settings so there's a difference between hi and low.

Since the stove only has hi/low mode, the difference when the thermostat kicks on may not be immediately obvious. It should start feeding pellets at the higher rate you've selected, but it takes a little while for that to show a higher flame or throw more heat.

If all that checks out, you can try just connecting the thermostat wires to each other, bypassing the thermostat. That would start to narrow down where the problem might be.

 

[skibladerj]

I have a 5500m on a t-stat. If it close then with the stove off. Remove the side panel with the control panel. There will be a jumper connecting the two spades for the t-stat. Remove that and place two wires on the spades. The order does not matter. Put the side panel back on and make sure everything is connected. My antisipator is set at. 30 turn the stove on and let it get warm. Set the high limit (heat range to anything but 1). Once the t -stat is happy the stove will turn down to a HR1. (The screen will blink the high setting)

 

[edking603]

If it makes a different sound, it is responding in a way (just not what you expected).
Is the stove staying on all the time? That's what in infer from your statement, but it is not clear. Is your stove supposed to do a high/low or an on/off with a thermostat? If it is a high/low the change may be subtle enough that it is hard to tell that it changed at all.
Have you waited long enough? I don't know your stove, but some have to see a change in the call for heat for a few minutes before they will change modes

Thanks for your reply. I've just tried the anticipator and waited 10 minutes each setting, no change. I also tested the line with a 12v baterry, unhooked from the stove, tested 12volts with a meter.The stove will continue to run on T-STAT, but only on the lowest heat setting. From what I've read, it won't shut off or on, but will cycle through heat settings depending on the amount of heat call. Yes, wired right, Ground left, temp middle, power 5 volts right. Only thing left is 5 volts not enough power to go 120 feet?

 

[skibladerj]

you might have to run a different gauge wire for that long of a run. It might be too much resistance for the stat to function correctly.

 

[Harvey Schneider]

I don't understand. You said that it was a mercury thermostat, but you talk about three connections including a 5V supply. An old fashioned mercury thermostat is a switch. You should have one wire attached to terminal "Rh" (or "R") and one wire attached to terminal "W". What are these three wires you are talking about.

 

[edking603]

Yes, 2 wires. Third wire is just ground to the stove, thought I needed it. See the attached file.

 

[Harvey Schneider]

Yes, 2 wires. Third wire is just ground to the stove, thought I needed it. See the attached file.

Since the thermostat is just a switch you should be able to simulate the thermostat by connecting the two wires to put the stove in high heat mode and disconnect them to put the stove in low heat mode. If that works the thermostat is either broken or wired wrong. If it doesn't work, your wiring at the stove needs to be looked at.

The best way to determine if it is working is to watch the auger rotations. Short duration rotation for low heat and long duration rotation for high heat.

 

[mchasal]

Yes, 2 wires. Third wire is just ground to the stove, thought I needed it. See the attached file.

I'm confused too. Which 2 connections are you using of those 3 on the stove? I believe it should be the ground and tstat (left and middle) connections. I don't think the 5volt terminal should be used at all in your setup. Don't see an attachment on your post to verify though.

 

[edking603]

I'm confused too. Which 2 connections are you using of those 3 on the stove? I believe it should be the ground and tstat (left and middle) connections. I don't think the 5volt terminal should be used at all in your setup. Don't see an attachment on your post to verify though.

I've only been going on info from here and US Stove. I'll try the attachment agian. Says

Since the thermostat is just a switch you should be able to simulate the thermostat by connecting the two wires to put the stove in high heat mode and disconnect them to put the stove in low heat mode. If that works the thermostat is either broken or wired wrong. If it doesn't work, your wiring at the stove needs to be looked at.

The best way to determine if it is working is to watch the auger rotations. Short duration rotation for low heat and long duration rotation for high heat.

I was going to try switching wires, but have heard it might blow the board. I might try connecting the wires and see if I get a different reaction. Do you think 100 plus feet is too far for 5 volts? I could shorten the wire as I curled up the extra.

 

[Harvey Schneider]

I've only been going on info from here and US Stove. I'll try the attachment agian. Says


I was going to try switching wires, but have heard it might blow the board. I might try connecting the wires and see if I get a different reaction. Do you think 100 plus feet is too far for 5 volts? I could shorten the wire as I curled up the extra.

The manual page you attached is ambiguous at best. Based on a knowledge of thermostats, I believe you want your thermostat connected between "TSTAT" and "GND". The terminals on a simple thermostat will be "Rh" and "W". It doesn't matter which wire is tied to which terminal.
I have never had a thermostat on 100 ft of wire, It will probably work, but why do it? I typically put a thermostat 15 to 25 feet from the stove. That keeps the heat of the stove from turning off the thermostat prematurely. I can't imagine needing that much wire for any practical installation. If you must use that much wire, use at least 22 AWG wire (lower number is bigger wire).

 

[edking603]

The manual page you attached is ambiguous at best. Based on a knowledge of thermostats, I believe you want your thermostat connected between "TSTAT" and "GND". The terminals on a simple thermostat will be "Rh" and "W". It doesn't matter which wire is tied to which terminal.
I have never had a thermostat on 100 ft of wire, It will probably work, but why do it? I typically put a thermostat 15 to 25 feet from the stove. That keeps the heat of the stove from turning off the thermostat prematurely. I can't imagine needing that much wire for any practical installation. If you must use that much wire, use at least 22 AWG wire (lower number is bigger wire).

Thanks so much for your help! I knew it would be something simple! Change the wires at the stove to T-stat & ground, BINGO! Thermostat works just as it should!