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Changing home thermostat

Changing thermostat from a 2 stage to a 4 stage to run elec.heat heatpump air humidifier the thermostat is a white rodgers big blue need wireing diagram

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Couldn't find your thermostat based off the information you provided; find the model number and follow the link to the Contractor Support Page.

White-Rodgers Multi-Stage Thermostate Diagrams for Contractors

Posted on Nov 28, 2008

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Need help understanding how to wire a new programmeable thermostat. I currently have a White Rodgers 1F73 model (non-programmeable) connected. I am confused with the instructions on how to connect the...


the black wire is your common wire, you need to program your thermostat, in the advance mode, to tell the t-stat if your heat pump reversing valve is energized on cooling or heating, is the orange wire connected to your t-stat.= w2/o/b

Dec 20, 2014 | Honeywell Heating & Cooling

1 Answer

Rth2310b wiring


More than likely, this is what you have:

Red- Power- (RC/RH)
White- Heat- (W)
Green- Fan- (G)
Blue- Cool- (Y)

Usually, the only times you need more than 4 wires are:

1. You have a HeatPump system.
2. Your new digital thermostat does not use batteries, which then you have to have a common wire to power the thermostat.

May 26, 2012 | Honeywell Rth2310b 5-2 Day Programmable...

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We have bought a home with the wite rodgers thermostat 1f85-275 it doesn't seem to be working. on the top right of the screen it states 1&2 stages? anyway, help would be appriciated


Hi, this thermostat is for central heat and air systems that have more then 1 stage of heating or cooling. For example, your unit may have 2 stages of cooling, as in 2 compressors, or 1 stage of cooling and 2 stages of heating as used in commercial heat pumps. This is a multi-stage heat pump thermostat. It may be just a matter of programming the stat. If you can find a manual on it, this would help. If you open the cover, it should have directions on how to program it.Make sure you have power to everything, check all breakers to see if they may be shut of, even if you have a display, doesn't mean you have high voltage to run the unit. Make sure fan is in auto, and on heat or cool, and temperature set for it to come on. Please keep me posted.
Sincerely,
Shastalaker7
A/C, Heating Contractor
PS Your unit has 1 stage of cooling, and 2 stages of heating.

Nov 05, 2010 | Heating & Cooling

1 Answer

Model 1f90w-51 the up down buttons stopped working this is a white-rodgers


Electronic Digital Multi-Stage Thermostat 1F83-261

  • 1F83-51 - White Rodgers Installation and Operating Instructions Thermostat 1F83-51
  • 1F86-344 - White Rodgers owners manual Thermostat 1F86-344
  • 1F86-444 - White Rodgers Installation and Operating Instructions Thermostat 1F86-444
  • 1F87-251 - White Rodgers Thermostat 1F87-251 OPERATION INSTRUCTIONS
  • 1F87-51 - White Rodgers Installation and Operating Instructions Thermostat 1F87-51
  • 1F89-11 - White Rodgers Installation and Operating Instructions Thermostat 1F89-11
  • 1F90-51 - White Rodgers OPERATION GUIDE Thermostat 1F90-51
  • Hi, This is a good stat and I have used it alot in the past as it is a older model. If you have 24 volt control voltage at the stat, and the battires are good, then you have a malfuntion in the ciruitry and will need to replace it. I have sent you a ton of manuals on there products I thiught they may be helpful. Please dont forget to rate this post as I know you will be kind. I hope I have been of help to you.
  • Sincerely,
  • Shastalaker7
  • A/C, Heating Contractor

Sep 22, 2010 | Heating & Cooling

1 Answer

On my white rodgers thermostat 1F80-361 air and heat wont work


Mine is doing the same thing!! My daughter and I are FREEZING!!!

May 23, 2010 | Heating & Cooling

1 Answer

Instead of the heating element turning on the heat pump runs out side thermostate is not set on eheat


The heatpump is your 1st. stage heat, when you have a call for heat it will bring on the outdoor unit.
When the first stage heat can't heat the house and the indoor temperature drops 2° or 3° then 2nd. stage heat will kick in and maintain the house temperature at about 2° or 3° below the temperature setting.
If you outdoor unit fails or goes into defrost then emergency heat will kick in and keep the house at 2nd stage temperature approximately 2° or 3° below thermostat setting.
If you have an outdoor thermostat or balance point setting on outdoor board, it will shut the outdoor unit off at a certain set outdoor temperature and the 2nd stage heat will be primary heat for the house.

Jan 05, 2010 | Heating & Cooling

2 Answers

Thermostat


Heat pump Thermastats have Terminals RYW/OW2 G C. I run into this a lot with people buying tStats at home depot. To wire three sages of heat you must have correct tstat. one stage cool and three stage heat. You have to have enough wires at the Tstat. I use white first stage brown second and grey or black third. Make a diagram where each wire goes. Remember to trun of air handler power or you will short the transformer or blow low voltage fuse. Yellow cool, green fan, most of the time blue is c unless it is a battery tstat. orange is O. Red R ot power wire. Rusty

Jun 03, 2009 | Heating & Cooling

1 Answer

Changing to a digital thermostat


you cant use this thermostat . you have a trane 2 stage heatpump the hunter thermostat is made for a one stage heatpump ...if this answer helped please rate this 3 or 4 stars , this will keep me in the paid answer department

Apr 06, 2009 | Heating & Cooling

1 Answer

Cannot reach the temperature setpoint in heating sequence


I think what you are trying to ask is should you use a 2 stage thermostat or stick with a single and just double the stages on a relay to work at the same time. As long as the relay can handle the amp load, there is no real need for a 2 stage heat system, unless you are concerned by the efficiency of $$. If I am missing the question please reply.

Dec 11, 2007 | Ruud UBHC Air Conditioner

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