Ruud heat pump system Honeywell RTH3100c - http://www.hvacmechanic.com/ Forums
Original message
| rockhaxor
 |  "Ruud heat pump system Honeywell RTH3100c"
, posted Wed 2 Jul 17:35  
So, my Ruud heat pump system thermostat (Braeburn) was flaking out and I replaced it with a Honeywell RTH3100c. I followed the installation instructions and labeled all the wires and connected them as they instructed in the installation guide. These are the wires I have and the order I installed them.
E W2 Y1 G R B C
I followed the setup instructions and when I turned on the power and tried to turn on the system nothing happened. I found if I remove the Brown ( C ) wire and try it with batteries the cooling turns on. I called Honeywell and they tell me its wired properly. So I returned the thermostat for a new one and the same thing happens.
Any thought would be appreciated.
Thanks in advance
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Replies:
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| theduke03
| "Re(1):Ruud heat pump system Honeywell RTH3100" , posted Wed 2 Jul 18:22:
Is the brown C wire connected to C in the air handler?
"My dad was the most feared furnace fighter in Northern Indiana."
[this message was edited by theduke03 on Wed 2 Jul 18:23] |
| | rockhaxor
| "Re(2):Ruud heat pump system Honeywell RTH3100" , posted Wed 2 Jul 18:36:
Yes, I believe so it is connected to a connection called comm
[this message was edited by rockhaxor on Wed 2 Jul 18:39] |
| | theduke03
| "Re(3):Ruud heat pump system Honeywell RTH3100" , posted Wed 2 Jul 18:45
Do you have a meter? If so check for 24Vac from R to C.
No meter? Lick the tips of your pointer and middle finger(on one hand) and put one finger on R and the other on C. If 24v is present you will feel a slight buzz. It's not painful but slightly uncomfortable.
"My dad was the most feared furnace fighter in Northern Indiana."
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| | rockhaxor
| "Re(4):Ruud heat pump system Honeywell RTH3100" , posted Thu 3 Jul 20:00
I don't have a meter that works and I am a little apprehensive of touching anything electric with my moistened fingers.
A little more info if it helps: the system is two years old and they replaced everything from the unit outside to the heat pump to the thermostat and the ductwork. I had a technician come out on Monday who charged me $70 dollars to troubleshoot the system, he told me it was the thermostat and that it would be cheaper for me to replace it myself.
He said it might be tricky due to the fact that I have a Ruud system and told me something about a reversing valve. I have called Honeywell support and they told me nothing. (Unfortunately I couldn't understand them and they had trouble understanding me)
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| | theduke03
| "Re(5):Ruud heat pump system Honeywell RTH3100" , posted Fri 4 Jul 12:30
Wuss.
"My dad was the most feared furnace fighter in Northern Indiana."
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| | Houston204
| "Re(5):Ruud heat pump system Honeywell RTH3100" , posted Thu 3 Jul 20:55:
www.photobucket.com
Post pictures of your stat wiring at the Fancoil and at the Stat.
"Tip of the Day" Remember to remove power first.
[this message was edited by Houston204 on Thu 3 Jul 20:56] |
| | rockhaxor
| "Re(6):Ruud heat pump system Honeywell RTH3100" , posted Fri 4 Jul 10:48:
Sorry for the delay had to borrow a camera and set up an account.
http://i27.photobucket.com/albums/c152/rockhaxor/ah2.jpg
http://i27.photobucket.com/albums/c152/rockhaxor/ah3.jpg
http://i27.photobucket.com/albums/c152/rockhaxor/ah1.jpg
Hope these help out
thanks in advance for your help
John
In the one picture of the wires from the thermostat the brown (c) is not connected so we can run the a/c on battery power.
[this message was edited by rockhaxor on Fri 4 Jul 14:43] |
| | rockhaxor
| "Re(8):Ruud heat pump system Honeywell RTH3100" , posted Fri 4 Jul 12:50
Hope this helps
thanks
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| | Houston204
| "Re(9):Ruud heat pump system Honeywell RTH3100" , posted Fri 4 Jul 15:06
Yep, brown is common.
Wish I could see if it was hooked up that way.
"Tip of the Day" Remember to remove power first.
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| | rockhaxor
| "Re(10):Ruud heat pump system Honeywell RTH310" , posted Tue 8 Jul 19:48
I got a meter and checked for 24Vac between the r and the c. It reads 16v to 17v.
As for the connection of the brown common wire let me see if I could get a better picture.
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| | rockhaxor
| "Re(2):Re(10):Ruud heat pump system Honeywell " , posted Thu 10 Jul 12:43
I have a two stage heat pump, can this be a problem with the RTH3100c I am trying to connect?
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| | rockhaxor
| "Re(3):Re(10):Ruud heat pump system Honeywell" , posted Tue 15 Jul 12:49
For the sake of completeness I am writing the resolution to this post.
When the technician had told me too get a thermostat that was for a heat pump he told me about the rth3100c that would cost about 50 dollars.
As you can see I have been going round and round with this for a week or so. I decided to try a different thermostat ( Honeywell rth7400 ) since I have a multi stage system. I hooked it up as per the instructions and it work as soon as I applied the power. Problem solved.
In response to theduke03's comment above about being a wuss. Although, that it is quite entertaining, I have a pacemaker and am and apprehensive of sending any electrical charges through my body. Nothing less, nothing more.
Thank you to all that replied for their help.
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