Heres another thermostat wiring Help posting

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Old 11-20-09, 02:52 AM
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Heres another thermostat wiring Help posting

Ok heres the deal trying to install a new digital thermostat.
Heres a pic of the old thermostat wired into the house
oldthemostat on Flickr - Photo Sharing!
Here is also the wiring reference on the old thermostat
http://www.mobilehomerepair.com/media/img/col
And here is the new thermostat that I want to install
newthermostat on Flickr - Photo Sharing!

Please tell me how to wire the new one so that it works. I tried to wire it but never got it to work right.
Please help. Thanks in advance.
 
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Old 11-20-09, 07:19 AM
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I'm going to need more info from you.

What's the make and model # on both t-stat.

And what is this tying up to? I'm guessing heat pump, and what's the back up heat?
 
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Old 11-20-09, 09:30 AM
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I know the one in the house now is a Coleman but I don't know the model number, the one I want to put in is a Carrier and I couldn't find any model on it either. Sorry I know that is not much help. I'm using it on a heatpump with 1 cool and 2 heat. The heat is an electric furnace inside with the a-coil on it. Hope this helps a little more.
 
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Old 11-20-09, 10:48 AM
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Model # are iether on the sub-base, or back of the t-stat.

What letters are hooked up on the old one?

What letters are on the new one?
 
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Old 11-20-09, 12:32 PM
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The coleman is a 9746.
The wires that are hooked up are:
O
G
Y
R
X
L
W2
The new thermostat is a carrier model number tstatccnhpo1-b
It has hookups for:
S2
S1
O/W2
Y1
B
R
Y/Y2
G
C
W/W1
That should cover it.
 
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Old 11-20-09, 03:48 PM
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Old---New
O----O/W2
G------G
Y-----Y/Y2
R-----R
X-----C
W2----W/W1
L---Not used.


I am not able to find the manual for your t-stat, but follow the set up menu for heat pump system with Aux electric heat (Guessing it's electric?)
 
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Old 11-20-09, 04:37 PM
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Ok. Wired it up that way. Switched it on. It powered up I turned mode to cool and nothing happened. I heard the thermostat click like it was turning the cool on, but the pump never came on. I can hit the fan button and the fan turns on. I don't guess I have the proper setup for it. I do not know how to access the setup menu. Any help there??
Sorry I know I sound like an idiot.
 
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Old 11-20-09, 05:11 PM
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Found this on the new thermostat im installing
http://www.favret.com/pdf_files/ther...ogrammable.pdf
 
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Old 11-20-09, 09:04 PM
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When you turn on "Cool" mode, does the fan inside run, or nothing runs at all?

What happens when you switch to heat?

This what I suggest on the setup.

1- 3
2- Depends on what air filter you have. (has no affect on system)
3- F
4- Off (Switch the t-stat to Emergceny heat mode, if fan don't run then swtich to On)
7- Off
8- 35 (you get the outdoor sensor?)
13- 0
15- up to you.


I see why I had a hard time finding this, it's no longer made.. You must of gotten this used?
 
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Old 11-21-09, 02:47 AM
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Ok. Got it working. It is a used thermostat because I was told to replace the thermostat to see if that would fix the problem I'm having.
Replacing the thermostat did not fix it. So I'm back where I started.
Here's my problem:
The tranformer went out a while back. It was replaced by a hvac guy. Now when the system is heating I can't go above 70 degrees or so, if I do the light on the thermostat blinks and it stops heating. The fans will continue to run but blow no heat. It have to turn the entire system off (flip the breaker) and let it sit for about five minutes and turn it back on to get it to heat again. I have to turn it off constantly to heat the house.
Any idea what that could be. Thanks for your help you've been really helpful.
 
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Old 11-21-09, 06:17 AM
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Originally Posted by 00castle View Post
Ok. Got it working.
What did you do to get it to work?


Now when the system is heating I can't go above 70 degrees or so, if I do the light on the thermostat blinks and it stops heating.
Blinking light on the old or new t-stat? If it's the old t-stat, then it's telling me you are getting a fault/lock up code from the unit outside.


Do you know if the unit stops outside when this happens?
 
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Old 11-21-09, 07:13 AM
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The thermostat had a timer delay on it. According to the instructions. I hit the fan button and the up button and the cool turned on. I don't know if the outside unit stops or not. Ill check and see. What if it does is that a major problem.
 
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Old 11-21-09, 11:29 AM
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It can be a few things.

System shutting down on high pressure due to poor air flow, dirty filter or blower inside.
 
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