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Wires on cam-stat thermostat 1972 are not labeled

I only have 2 wires coming from the wall, both are black, neither are labled.

Posted by Anonymous on

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6ya6ya
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Posted on Jan 02, 2017

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hotuna
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SOURCE: Williams wall non-elec gas heater. Black copper wire tagged thermostat?

First make sure this is a heater set up for a remote mounted thermostat. If so, the gas valve has 3 screws labeled TH (thermostat) and TP (thermopile) that's the flame sensor with 2 wires coming off it, I don't know where the goofy name comes from. there will be one screw that has both, usually the top one. Wire accordingly. The new valves have a solenoid on the bottom. this connects to the high temp. sensor up top. It has 2 wires on it, one connects to the thermostat wire, the other goes to the screw with TH and TP. Or you can skip it and connect the wire from the back of the valve to the Th and TP screw. Make sure the thermostat wires aren't pinched somewhere, thus eliminating the thermostats control.

Posted on Mar 02, 2008

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  • 1 Answer

SOURCE: rewire an old 2 wire thermostat to a honeywell 5-1-1 programmable

I connected the blue wire to the R and the white wire to the W on the old thermostat and shoved the new Honeywell 5-1-1 Day programmable thermostat up the first guys *** that i ran into at Canadian Tire

Thanks for your help

Posted on Dec 29, 2008

  • 230 Answers

SOURCE: RTH2520B Honeywell Programable Thermostat wires

Hi soozankrayg!
Your problem should be pretty simple. (assuming that it is a typical 24volt system) you should hook up the black wire to the "RH" terminal and the white wire on the "w" terminal. Make sure that you turn off the power to the furnace at the breaker or the furnace itself before attempting this. The reason for this is that you can cause a short and either break the fuse at the furnace or burn up the circuit board. This can happen very quickly and is very common when a thermostat is removed.

Posted on Jan 28, 2009

  • 234 Answers

SOURCE: I'm replacing a 1950's-60's era Honewell mercury

I don't know much about this ,but it seems to me you need to check and see if the old t-stat is line voltage or low voltages.

Posted on Mar 15, 2009

  • 252 Answers

SOURCE: I need to know what the wire labels are supposed

then it does not matter which goes where but one goes to R and the other to W (or W1)

Posted on Oct 04, 2009

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1 Answer

All is standard, heater is gas, AC is electric, old thermostat was old and burned. I have TH3110D1008 and 4 wires.


the colors on standard t-stat are rh/rc gets red wire. g goes to fan green. y goes to outside unit cool. and in your case w labeled black goes to heat normally this wire is white.

Jul 25, 2015 | Heating & Cooling

1 Answer

My old t stat was labled y g r o w2 e c with all color coded wires.....my new t stat has rh rc w y g the old t stat was removed prior to me getting home.....HELP!


Your old thermostat is for a heat pump. if you have a heat pump, you have the wrong new thermostat. It is not for a heat pump.Here is a typical wiring for a non heat pump system:

Yellow (cooling) goes to y
Red (hot) goes to rh
*tie rc and rh together with a jumper wire
White (heat) goes to w
Green (fan) goes to g

If you have a heat pump repost the color of your wires coming out of the wall

Apr 21, 2011 | Heating & Cooling

1 Answer

I am trying to replace this thermostat with a digital, neither of the 2 wires is labeled, what are the 2 wires?


One would be 24 coming from furnace the other sends 24 volts back when Stat tells it to. These wires should connect to R and W on stat or If This is heat only stat the two terminals on stat

Jan 20, 2011 | Honeywell Consumer Products Model...

2 Answers

Do i need a low voltage transfomer to hook up my


what kind of thermostat to you have, did you purchase the thermostat with the unit are you upgrading to a electronic thermostat, If you are using the mechanical thermostat that comes with the unit you will not need a thermostat. please see the link below and page 11
http://www.wfc-fc.com/pdf/Monterey_Top_Vent_IOM.pdf

Jan 17, 2010 | Honeywell Programmable Thermostat Heater

2 Answers

Wiring instructions for Thermostat Honeywell with Carrier Package


Jumper R to Rc and hook hot wire from transformer to R usually red wire
O = Reversing valve probably white or orange If you get heat when calling for cool or Vice Versa then switch wire from O to the B terminal.
Y = Contactor usually yellow
G = Blower usally green
Jumper Aux to E need to go to unit and use the wire that goes to your Auxiliary or 2nd stage heat
L = Light if you have this terminal on your unit then hook it up.
C = Common from transformer usually black, if you have this terminal on your unit hook this wire up.
Make sure you go to your unit and only hook these wires up if they go to these locations.

Jan 11, 2010 | Heating & Cooling

2 Answers

I am trying to install a fahrenheat f2543 heater with a fta2a double pole thermostat. there is a 12/2 wire coming into where the heater is being installed. how do i connect the red and black to the white...


Hi, this is very easy for you to do.The 12/2 Romex wire coming in is the power which you know. What you do need to know, is the voltage coming in? Sometimes they will use 12/2 Romex with ground for 220, 240, operation. You need to know if the T-stat is Line voltage 220, or 240 volt. You have to have the same voltage for both for it to control. Reguardless of the voltage, lets say it is in the 220 and up range. You take one of the 12/2 wires, white or black and hook it to the black or red on the T-stat and the white to the other one, red or black. Thats it, you are done! If the T-stat is 2-pole I am sure it is a high, Line votage T-stat. Best of Luck,
Shastalaker7

Nov 09, 2009 | Fahrenheat Built-In Baseboard Thermostat...

3 Answers

I have a singer wall thermostat. I am replacing


You have to know what the wires go to.

(1) wire will come from the transformer and it connects to the r/c and r/h

(1) wire will go to the gas manifold and goes to the g

(1) wire goes to A/C and connects to y/o

(1) wires goes to the fan

Oct 21, 2009 | Heating & Cooling

1 Answer

Wiring for baseboard heater


I hope you are using a Line Voltage Thermostat!! First, make sure that the power feeding the thermostat is coming from a two pole breaker of the correct amperage (20 amp). If you are using 12-2 wire with ground then please mark the white wire with black tape at each end to identify it as a HOT power source and not a Neutral wire (which is a grounded lead). Do the same for the 12-2 wires feeding the baseboard heater from the Line Voltage Thermostat. The wires from the thermostat (One Black & one White w/black tape) will be wired to each one of the two wires (one Black & one Red or two Black wires) at the baseboard heater. It doesn't matter which wire from the thermostat is wired to which wire at the heater, just as long as there is one wire to one and one wire to the other.(eg. Black from stat to Black at heater/White w/blk. tape from stat to Red at heater OR Black from stat to Black at heater/White w/blk. tape from stat to OTHER Black at heater). I have seen baseboard heaters with two black wires or one black and one red wire. Hope this helps, but if you are confused then please have an experienced tech. do it for you.

Dec 14, 2008 | Fahrenheat Electric Convector Baseboard...

1 Answer

Williams wall non-elec gas heater. Black copper wire tagged thermostat?


First make sure this is a heater set up for a remote mounted thermostat. If so, the gas valve has 3 screws labeled TH (thermostat) and TP (thermopile) that's the flame sensor with 2 wires coming off it, I don't know where the goofy name comes from. there will be one screw that has both, usually the top one. Wire accordingly. The new valves have a solenoid on the bottom. this connects to the high temp. sensor up top. It has 2 wires on it, one connects to the thermostat wire, the other goes to the screw with TH and TP. Or you can skip it and connect the wire from the back of the valve to the Th and TP screw. Make sure the thermostat wires aren't pinched somewhere, thus eliminating the thermostats control.

Feb 23, 2008 | Heating & Cooling

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