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tss2225 · Jan 24, 2009, 11:29 AM

I had no idea there were so many different types of thermostat configurations. So without fully understanding that, I purchased a Honeywell FocusPRO 6000 (based on ratings) to replace my current thermostat. The problem with the current thermostat is that I have no idea what the brand is. The label on the outside is that of the company that installed it. A local place. I've included a picture of the wiring layout below. The labels should be clear enough to read if you expand the picture.

http://img88.imageshack.us/img88/7245/thermbw8.jpg
(And no, that blue wire in the picture *isn't* connected to anything.)

At this point, I'm not sure I've purchased the correct model. The system I'd like the thermostat to run is an AC and heating system. In laymans terms. Because I don't know the technical jargon. :)

The system has a device outside which I assume is a compressor (commonly found in southern states). The compressor comprises a fan and surrounded by a radiator device with millions of fins on it. I assume this is for heat exchange. I believe when the repair man was here before he said it was a compressor.

Under the house is another device that has a fan inside it and looks like a bunch of giant duct-work. It had a relay that needed to be replaced. Anyway, the current thermostat has a setting for the fan. Auto and On. It has an indicator and setting for 'emergency heat'. The heat is provided by electricity and not gas. Reading the directions on the 6000 made me nervous because I don't know if I have a 1H/1C or heatpump or whatever system. Looking at the wiring configuration of the currently installed thermostat, and then looking at the available posts in the 6000 made me think I bought the wrong model.
http://www.honeywell-thermostat.com/...1005manual.pdf

If anyone can let me know that I've purchased the right or wrong model I'd appreciate it. If I got the right one, if you could further explain which wires get paired up to what post I'd be deeply in your debt!

Thanks!
-t

wmproop · Jan 24, 2009, 12:22 PM

Looking at your photo I have to guess you have a heat pump with backup furnace,, right or wrong?
And looking up your new honeywell it says your stat is for single stage heat, which means it is not compatible for a heatpump, sorry,, go back and tell the tstat store what exactly what kind of heat you have

tss2225 · Jan 24, 2009, 12:34 PM

Originally Posted by wmproop

looking at your photo I have to guess you have a heat pump with backup furnace,,,right or wrong?

How do I tell if I have a heat pump? What does it look like? Where would it be located?

The box states:
"
5-1-1 Programable Thermostat
1 Heat / 1 Cool
Conventional and Heat Pump
"

I took this to mean it would work with a heat pump, should I have one.

-t

KC13 · Jan 24, 2009, 01:12 PM

Turn the heat on and raise the thermostat setting to force operation. Does the outdoor unit run? If so, you have a heat pump system.

wmproop · Jan 24, 2009, 01:25 PM

if your old tstat had emergency heat setting,, you probably have heatpump. A heat pumptstat needs to be 2 heat/1 cool

the conventional and heatpump means furnace=conventional
heatpump=heatpump only with no backup heat
if you live somewhere where the temperature gets.can get below 40 degrees you I`m pretty sure have a backup furnace

unless you tore up the package or bought the honeywell at a yardsale, they will probably exchange with you,, I do recommend that you stay with another honeywell,

wmproop · Jan 24, 2009, 01:27 PM

Originally Posted by KC13

Turn the heat on and raise the thermostat setting to force operation. Does the outdoor unit run? If so, you have a heat pump system.

Yea,yea,yea,, that works too:rolleyes:

tss2225 · Jan 24, 2009, 01:34 PM

It's a heat pump system. Turning the thermostat up past the current temp causes the outside unit to turn on.

@wmproop: Since you made me paranoid now, I double checked the website and it does in fact appear that this model works with heat pumps. Confirmed on the website and the packaging itself. TH6110D1005 Honeywell Thermostat - FREE GROUND SHIPPING! Large, clear, backlit display And also from the back plate (see below).

The TH6110D1005 back panel looks like this (where the posts are):

G W C Y R Rc

"W" has an under description: O/B ---- FOR HEAT PUMP SEE INSTRUCTIONS FOR DETAILS

"C" has an over description ---- C IS OPTIONAL WITH BATTERIES

tss2225 · Jan 24, 2009, 01:38 PM

Originally Posted by wmproop

if your old tstat had emergency heat setting ,,,you probably have heatpump. a heat pumptstat needs to be 2 heat/1 cool

That's it then. Like I was afraid, I bought the wrong one. Now to see if I can return it. Looks like I need the next model up then.

Thanks!

KC13 · Jan 24, 2009, 01:41 PM

Only 1 "W" terminal? It may not be compatible for a heat pump system with electric auxiliary, if this terminal is used to control the reversing circuit (O/B).

candyorange · Oct 6, 2010, 06:53 PM

I have a 3 1/2 air handler and a 3 1/2 ton outside unit. My problem is when I wired the honeywell th6000 in it will only run the outside unit (heatpump) for about a minute and then trips to stage 2 heat and will continue until the correct temp. is reached. Nothing I do seems to work?