DIY Chatroom Home Improvement Forum

DIY Chatroom Home Improvement Forum (
-   HVAC (
-   -   Help Installing Honeywell Thermostat.... (

jobondur 03-29-2010 08:15 PM

Help Installing Honeywell Thermostat....
I'm looking for a little help installing a Honeywell VisionPro TH8320 Thermostat. I am replacing a Carrier TSTATCCPRH01-B and the wiring codes aren't really matching up the way I had hoped. Below is a legend of how it is currently hooked up (to the Carrier thermostat) and my assumption as to how it should be hooked up (with some unknowns).

Wire Color - Old Wiring - New Wiring (my guess)
Orange - O/W2 - ??
Pink - Y1/W2 - ??
Red - R - R
Green - G - G
Yellow - Y/Y2 - Y
White - W/W1 - ??
Blue - C - C
Brown - S1 - S1
Purple - S2 - S2

Here is a link to the Carrier thermostat manual and here is a link to the Honeywell thermostat manual

I have a heat pump with gas emergency heat. If somebody could just tell me how to hook up those 3 ?? wires and check my other connections I would really appreciate it. Thanks.

Houston204 03-29-2010 09:00 PM

That is not your Carrier manual. You have this Thermidistat..

What are your existing configuration settings?

jobondur 03-29-2010 09:14 PM

Here are the current configuration settings:
  1. 03
  2. 2
  3. F
  4. OF
  5. On
  6. On
  7. OF
  8. 40
  9. The thermostat skips right over #9
  10. On
  11. OF
  12. 1
  13. 0
  14. 2
  15. On
  16. OF
  17. P
That's what you were looking for correct?

Houston204 03-29-2010 10:01 PM

Refer to Figure 12.
You will need the Honeywell C7089U1006 outdoor sensor.

03... Option 1—Anticipator adjustment
2.... Option 2—Clean filter timer adjustment
F ... Option 3—English/Metric selection
OF... Option 4—Fan (G) ON with W selection
On... Option 5—Variable-speed blower present selection
On ...Option 6—Cooling lockout below 55 selection
OF ...Option 7—Variable-speed super dehumidification selection (only available when variable-speed blower is used)
40... Option 8—Auxiliary heat lockout temperature setting (only available when heat pump is used)
NA...Option 9—Intelligent Heat Staging selection (only available when single-speed heat pump is used)
On... Option 10—Dual Fuel selection (only available when heat pump is
OF... Option 11—Balance point setting (only available when Dual Fuel
is selected)
1 ...Option 12—Defrost heat selection (only available when heat pump
is used)
0... Option 13—Room temperature offset adjustment
2... Option 14—Heat/cool dead band adjustment
On... Option 15—Enable Auto mode
OF... Option 16—Enables Super Comfort Heat Mode
P... Option 17—Non-Programmable selection

Houston204 03-29-2010 10:23 PM

Y2 = yellow
Aux & E = white
S1 = brown
S2 = purple
Rc & R = red
O/B = orange
Y = pink
G = green
C = blue

170 = 12
180 = 0
190 = 0
200 = 1
210 = 1 (Honeywell outdoor sensor required)
220 = 3
230 = 3
260 = 3
270 = 3
280 = 1 (if you want a constant backlight)
300 = 1
310 = 3
320 = 0 (Fahrenheit) or 1 (Celcius)
340 = 2 (Honeywell outdoor sensor in use)
350 = 15 (if gas is expensive in your area) I'd set it at 40 in my area
360 = 0 (If gas or oil is high in your area set at 40)

beenthere 03-30-2010 05:09 AM

You do realize, that other then the programmable function of the TH8320, its a lesser thermostat then what you have.

jobondur 03-30-2010 06:02 AM

Ok, so I'll go ahead and bite, how is it a lesser thermostat than what I have? Plus my Carrier thermostat IS 7-day programmable.

And thanks a ton Houston, I would have never figured out all those settings.

beenthere 03-30-2010 06:07 AM

The TH8320 has no ability to control blower speed on a VS blower system. Nor can it do cool to dehumidify.

Even with blowers that are not VS, a relay can be used to slow the blower to get additional humidity removal.

jobondur 03-30-2010 06:39 AM

So, based on my current configuration settings, it seems like I have a variable speed blower but have the dehumidification aspect of it turned off. Correct?

The reason I want a new one is the one I have is not very intuitive or user friendly. The Honeywell was what I had at my last house and I really liked it. It was easy to program and also easy to override or place on hold when you left town.

If I bought the wrong thermostat, I'm fine putting this one back on ebay and getting a different one but what would your recommendation be?

jobondur 03-30-2010 07:48 AM


Originally Posted by Houston204 (Post 421494)
Refer to Figure 12.
You will need the Honeywell C7089U1006 outdoor sensor.

So you're saying the honeywell thermostat is not compatible with the carrier outdoor sensor I already have?

beenthere 03-30-2010 03:17 PM

Honeywell IAQ(YTH9421) would be a good choice for a VS blower system.

Houston204 03-30-2010 08:24 PM

Beenthere is right, your old stat is more capable than your new stat, with a variable speed blower. It just doesn't look as good and is less user friendly.

The Carrier sensor will not work with your Honeywell stat.

I removed a Carrier tstatccpac01 to install a Honeywell TH8321 and I'm very happy with it, but I do not have a variable speed blower.
The Honeywell IAQ would be a much better choice for your application, though more expensive.

jobondur 03-30-2010 09:29 PM

So if I get the Honeywell IAQ and the Honeywell sensor you mentioned above, do the hookups and settings you posted for the TH8320 still hold true for the IAQ?

jobondur 03-30-2010 09:42 PM

And would I need to install the equipment interface module or just the thermostat? I don't have a humidifier on my current system.

beenthere 03-30-2010 10:01 PM

Need the (YTH9421).
It comes with both the stat and EIM.
Need the EIM. Or the stat can't communicate.

All times are GMT -5. The time now is 11:49 AM.

vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.

Search Engine Friendly URLs by vBSEO 3.6.1