Old Thermostat show: E to AUX - loop, Y - yellow, G - Green, O - Orange, R - Red, B - White, Now on NEST, show O, and B on one slot. Which wire correctly connect?
O and B are both for your reversing valve. Most thermostats have only one (Orange or Blue) wire instead of both. Because of this there should be a setting to select whether the wire will be powered for heat or powered for cooling. HVAC manufacturers used to select a default based on geography. In Northern climes they would use default to heat and in Southern climes they would default to cool. This saved wear on the solenoid and allowed the unit to function with a bad solenoid coil for the most frequent use (heat or cool). Lately the HVAC manufacturers do not base decisions on location or where it will be sold. So test your system and see if the O/B is energized when compared to the C (common or chassis ground at the 24vac transformer). Now check to see if you are getting hot air when set to heat, cold air when set to cool. If not then look in the thermostat setup guide to reverse the O/B function (change the default).
SOURCE: I'm installing a Honeywell RTH7600B
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
SOURCE: Hunter 44100A programmable thermostat
Sorry Iasumed you had a heat pump t-stat. You will need to exchange to a heat pump t-stat
SOURCE: hunter 44155c wiring from manual thermostat
I have a manual thermostat with the following wire connections (Y, G, R, O, C, & E) with the respective wires attached (yellow, green, red, orange, blue, white). My 44260 has available G, Rc, Rh, Y/O, W/B, Y1. Which wires should I connect to which terminals on the 44160. Thanks.
SOURCE: heat strip install
What color wire is connected to the "Y" terminal on the thermostat.
If the unit you are connecting is a heat pump A/C unit the orange wire is for the heating mode. Normally the "Y" terminal on the thermostat. "R" terminal on the thermostat is the power to the thermostat, "W" terminal is for heating, "Y" is for cooling, and "G" terminal is for fan operation. At the condensing unit for cooling the brown and yellow wires would normally be for the cooling.
SOURCE: how to wire hunter 44155
Go to the hunter web site. They will have the proper wiring diagrams on the site. If you cannot do that pick up a basic wiring book at your local electric parts supplier. the place you got the thermostat would be a good start. I do know that menards has some books in the electric area that would be a great help to you. You also will need to be sure that the thermostat is able to handle both air and heat. many only do heat. If this does not help let me know and I will try and get more information to you
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