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eddie6505 Feb 21, 2009, 08:04 AM Hi,
I want to connect a Honeywell CT51A t-stat and I don't know what colored wires go with what terminals. I do not have air conditioning.
The cable from the furnace has 5 wires
On the furnace, the wires are connected as follows:
white - T
Red - 3T
Black - R
Blue - G
Orange - Y
On my t-stat I have the following terminals:
R
1
2
G
Y
W
Help!!
wmproop Feb 21, 2009, 05:06 PM do you have a heatpump?,,,is the new tstat heatpump compatable?,,,should say on the package,,,,,some say 2 heat / 1 ac,,,,,,some say heat/cooling tstat,,,some say heat only,,,some say cooling only
wmproop Feb 21, 2009, 05:12 PM Honeywell #CT51A-1035 24V Heat/CoolThermostat====== if this is what you have and you have a heatpump,,it won`t work
eddie6505 Feb 22, 2009, 06:31 AM Hi,
No I don't have a heat pump. I have oil forced air furnace.
KC13 Feb 22, 2009, 06:42 AM On the furnace, the wires are connected as follows:
white - T
Red - 3T
Black - R
Blue - G
Orange - YAre there any other wires connected to any of these terminals?
On my t-stat I have the following terminals:
R
1
2
G
Y
W
Help!!Are you referring to the old, or new t-stat? If new, what colors/letters were connected on the old one?
eddie6505 Feb 22, 2009, 09:19 AM No Nothing.
I purchased the Honeywell thermostat new. My wife took off the old thermostat but didn't write down what colors were with what terminals on the old thermostat.
KC13 Feb 22, 2009, 09:30 AM My wife took off the old thermostat but didn't write down what colors were with what terminals on the old thermostat.Save that one for the next time she calls you "stupid"...;) Stay tuned...
KC13 Feb 22, 2009, 09:35 AM I just checked Honeywell.com, CT51A does not match any documents/search criteria. Are you sure this is an accurate/complete model # ?
eddie6505 Feb 22, 2009, 01:20 PM It's on the Honeywell web site under do-it-yourself, non-programable, non-digital, standard thermostats.
Below is a link for Ace Hardware showing the exact thermostat.
HONEYWELL CT51A1035 THERMOSTAT STD FOR HEAT/COOL APPLICATIONS CT51 (http://www.acehardwareoutlet.com/(h1kd4hfno0bws255kj4344rr)/ProductDetails.aspx?SKU=46088)
Just cut and paste into your browser.
KC13 Feb 22, 2009, 01:28 PM That's a nice pic, but no useful info is available there. I would need to view the wiring diagram for the t-stat to determine the function of each terminal. It should be with the installation instructions. If you could scan & post image, we may get somewhere.
eddie6505 Feb 24, 2009, 03:31 PM Here is a link for a .pdf file off the Honeywell website showing the back of the thermostat.
http://customer.honeywell.com/techlit/pdf/69-0000s/69-0265b.pdf
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