Furnace hook up thermostat

How do you wire a thermostat for a gas furnace?

White wire to the thermostat terminal strip for the gas furnace. A green wire to the G on the thermostat terminal board for manual blower fan operation. Finally, an optional blue wire hooked to the common terminal or C terminal on the thermostat terminal board. Detailed thermostat wiring color codes can be found here.

Can you wire a thermostat to your AC unit?

You can wire a thermostat to your AC in 5 quick steps that involve labeling the wires and connecting them to the control board. Whether it be understanding color-coding or identifying keep parts, follow along as we explore how you can wire your thermostat to your AC unit.

What are the two wires on a thermostat?

The most basic thermostat has 2 wires; usually a red and a white wire. Two wire thermostat wiring is used for furnaces only and usually doesn’t need a “C” or “Common” wire. That’s why we only need two wires: Red wire for power (24h). White wire for heating.

How do I know if my thermostat has a heat pump?

If you have separate wires for O and B, you will want to tape off the B wire so it can’t make contact, and the O wire will be connected to the O/B terminal on your thermostat. If your O or B terminal shares a label with another wire, typically W, you’ll need to identify whether you have a heat pump system or not.

How do you hook up a thermostat to a furnace?

Install the white wire on the thermostat and the furnace terminals that say W. Connect the red wire to the thermostat and the furnace at the terminals that are marked R. Youll need to run the wires between the thermostat and the furnace, inside the walls of your home.

How do you wire a red wire to a thermostat?

Strip the red and white wires back about 1/4 inch at both the thermostat and the furnace ends. Connect the white wire to the W terminal on the furnace and thermostat. Repeat this for the red wire, connecting it to the R terminal on both the furnace and thermostat.

What kind of wiring do you need for a thermostat?

4 Wire Thermostat Wiring (Heat Pumps, HVAC) 4 wire thermostats have a bit more flexibility. Smart thermostats like Nest and Ecobee thermostats require 4 wire thermostat wiring to function properly.

Where does the W wire go on a gas thermostat?

You will find them in gas furnace thermostats, for example, but won’t find them in air conditioner thermostats. W wires go directly to the source of heating; that may be a furnace (gas, electric, oil, you name it) or heat pumps ( mini-split heat pumps included ).

How do I know if my furnace is a heat pump?

Turn your thermostat to HEAT mode and adjust the temperature until the thermostat triggers a heating cycle. Once the heating system is running, go back outside to the exterior unit – if this equipment is on and blowing air, it’s a heat pump. Contact Grove for Help with Your Heat Pump or Furnace

How to tell if you have a heat pump or conventional system?

There are countless resources online that are helpful as you learn how to tell if you have a heat pump or a conventional system. With the model number to your outdoor unit, you can likely access the owner’s manual online, which comes in handy if the original is missing.

Why is the thermostat on my heat pump set to cold?

The reason for this setting is that heat pumps are usually used in milder climates where it doesnt get real cold often so they are usually built with electric heat strips for those cold days. This method isnt always reliable because the thermostat may not be hooked up correctly or may have been switched.

Is my unit a heat pump or just an air conditioner?

There are three relatively simple ways you can check to see if your unit is a heat pump or just an air conditioner. First and foremost, you can check to see if the unit says heat pump anywhere on it. Often units will say somewhere on them if they are a heat pump.