Question about Honeywell Electronic Programmable Heat/Cool Thermostat - CT3300A100 Heater

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There is five wires yellow, green, red, white, the problem that we a facing is to connect these wire into the honeywell theromostat RTH3100C1002-0916

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Yellow is the cool wire, green is the fan wire, white is the heat wire, red is the power wire. these stats should have a 1 letter icon ,r for red on stat y for yellow and so on ,make sure that Rc and RH are jumpered and install batteris if needed

Posted on Sep 30, 2009

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1 Answer

Changed honeywell T8400C 1024 to Hunter 44760, I have five wires white, red, yelliow, green, blue. Hunter Thermostat reads "NO A/C Power.


Hi,
On the t-stat and the furnace make sure the wires are hooked like this...

Red to R
White to W
Green to G
Yellow to Y
Blue to C

then it should work..

Thermostat Wiring and Terminal Designations

heatman101

Jun 12, 2011 | Heating & Cooling

1 Answer

I need the wiring diagram for this thermostat, there are four wires that are hooked up red,white,blue for yellow and green. They connect to a honeywell relay that has five connection, y,g,w,c,and r, do i...


On the fan relay hook up the red to r terminal the white to the w terminal and the green to the g terminal , now the blue needs to hook up to one of the two wires going to the outside condenser unit and the other going there goes on the c terminal . The blue does not have to go on the honeywell rrelay just wire nut it to the wire.

May 13, 2011 | Carrier TSTATHCP Programmable Thermostat...

1 Answer

I am wiring a honeywell thermostat model number ct87n if I select fan on the fan runs when out on auto /heat nothing but if I put on auto / cool and adjust the dial to a low setting the hea comes on....


there is it all depends on how many strands of wire are in there, they start at 2 wire and go to i think 8 wire and maybe more.
The wires are as follows:
1. red = power to stat.
2. green = fan control
3. blue or yellow = ac
4. white = heat
w1 = 1st. stage heat
w2 = 2nd. stage heat.
i am on line if you have any questions. wally

Feb 22, 2011 | Honeywell CT87B ROUND HEATING&COOLING...

1 Answer

Need help wiring this theromostat. I ahve the following color wires.....Green Red Black Blue White Yellow and Orange. Need to match them to the following connections: G RC RH Y/O W/B Y1


G= Green Wire (Fan) RC= Red Wire (Power Cooling) Y1= Yellow Wire (Cooling Contactor) RH= Black Wire (Power Heating) WB= White Wire (Heating Control) YO= Orange Wire (Damper Control)

Blue Wire is usually to C= Common

Nov 28, 2010 | Heating & Cooling

1 Answer

Honeywell RTH230B cooling problems...


I printed out the instructions for your thermostat. It looks like you should have the following.

There should be jumper wire between Rh & Rc

Red wire to Rh or Rc whichever is easier since there is a jumper. This is the hot wire and all the thermostat does is connect to route it to the components needed for heating or cooling.

Blue wire, tape it up and don't use it. There is no spot on this thermostat for it. It is only used on thermostats that are powered by the transformer.

White wire to W. Powers the heat relay

Yellow wire to Y. Powers the cooling contactor

Green wire to G. Powers the indoor fan relay

There is a black jumper on the back of the face plate. Look at section 2.4 Setting J2 Jumper in the installation instructions. Make sure you have it in the right position for what you have. If you don't have them just google them.

Hope this helps.

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Help! replacing WeatherKing thermostat with Honeywell RTH230B


RC AND RH CONNECT BOTH WITH RED
Y TO THE YELLOW
G TO THE GREEN
W TO THE WHITE

Sep 18, 2009 | Heating & Cooling

1 Answer

I'm installing a Honeywell RTH7600B programmable thermostat and replacing a Honeywell T87F2873. The new one calls for a Red, Green, White, and Yellow wire, while I only have a Red, Green White and Blue....


Every thing the same except take your blue wire and replace the yellow for it. So when you hook it to t-stat goes like this

Red to R
White to W
Green to G
Blue to Y


Jan 16, 2009 | Heating & Cooling

1 Answer

Manual Thermostat replcaement with Programmable Digital unit.


Hopefully there are markings on the old t-stat as to what terminal is what.
on the honeywell 8000 use the heat pump labeling and then the standard wiring would be
R- red
AUX-white
Y- yellow
B- O/B
C- black
G- green
There should not be a bare wire, it probably just has the insulation stripped back way too far.
You should probably open the furnace and compare the terminal label in the furnace to the wire color. normally yellow and blue pass through the furnace and are wire nutted to wires going to the outdoor unit. In the furnace the white wire will connect to the w or w1 terminal. also, you will need to set the Honeywell stat to have the following parameters.
170-7
190-1
200-0
other parameters that I did not specify, you may read the manual and make your own decision but I recommend factory settings for the other parameters

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