When the ecobee thermostat calls for two stage heating, it will energize W1 and W2, but in your situation you cannot control two heating units like that.
What is the difference between W1 and W2 on a thermostat?
In a conventional system, W/W1 controls your heating system and, where applicable, W2 controls your heating system’s second stage, which helps warm the home faster.
Can you jump W1 and W2?
If W1 is only wired up, it will always run in 1st stage, 2nd won’t come on unless W2 is wired to a two stage t-stat, or jumper to it.
How do you set a 2 stage thermostat?
Quote from Youtube video: Then if you turn the temperature up more than about two degrees second stage will come on or if it can't keep up with the load the temperature continues to drop. Either put second stage along.
How does 2 stage heat work?
Two-stage heating means the furnace has two levels of heat output: high for cold winter days and low for milder days. Since the low setting is adequate to meet household heating demands 80% of the time, a two-stage unit runs for longer periods and provides more even heat distribution.
What does W2 mean on a thermostat?
White for W Terminal. W2 – This is the thermostat terminal used for second stage heat. There are gas furnaces with low fire and high fire and some depend on control from a two-stage heating thermostat with a W2 terminal.
Is W1 same as W?
W – When you see a W terminal, it just means heat. Usually, you will only see W when the control only has one stage of heat. W1 – Means first-stage heat. In a heat pump, first-stage heat is the same as the first-stage cool.
Does white wire go to W1 or W2?
Thermostat White Wire (“W1” or “W2” Wire)
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). W2 is designated for two-stage heating. Most heat pumps include second-stage heating and require the white W2 wire.
What is W1 O B on thermostat?
W, W1, W2: Just like the Y wire, the W wire(s) control the heating aspect of your system. O, B, O/B: These wires are responsible for switching the changeover valve in a heat pump system. The O wire reverses the valve from heating to cooling, and the B wire switches the valve from cooling to heating.
What is the difference between a 1 stage and 2 stage thermostat?
A furnace with single-stage heating contains a fixed gas valve and a single-speed blower motor. These furnaces are either on and running at full capacity or off. A model with two-stage heating contains a two-stage gas valve and a variable-speed blower motor.
Why does my thermostat say Stage 1 and 2?
The second stage is the full capacity of your system. 1/3 compressor capacity is the 1st stage. 1st stage is more efficient than 2nd stage, but systems are designed to use both stages, so no worries there.
Do you need a two stage thermostat for a two stage furnace?
Single-stage thermostats can be used with 2-stage furnaces, albeit at the cost of losing some of the efficiency and fuel economy that a 2-stage furnace could provide. Using a 2-stage thermostat with a 2-stage furnace can give you the best energy savings.
How do you control a 2 stage furnace?
Quote from the video:
Quote from Youtube video: And this one's point five inches of water column. So this pressure switch is for low stage. And then this pressure switches for high stage.
Will a 2 stage thermostat work on a single stage furnace?
Using a 2 stage thermostat will not harm the furnace. And because the control board is compatible with a single stage thermostat, the furnace will still operate both stages. The control board would, as you say, start the second stage after about 10 minutes.
Do I have a 1 stage or 2 stage furnace?
Go to the section which identifies your furnace manufacturer. Take your model number and align the digits or series of digits to the graph. For example, a Lenox furnace with a model number G60UH24A045X would be a gas, two-stage furnace, based on the first three digits.
What is a 1 stage furnace?
Single stage furnaces
A single stage furnace has two settings. The thermostat in the house calls for heat, so the furnace comes on. Full power. It will run at full capacity until the thermostat is satisfied, then shut itself off. This is the cycle, so you get somewhat uneven heat throughout the house.
How do I know if I have 2 stage cooling?
Quote from the video:
Quote from Youtube video: You will have a wire or Y to the Y to wire. Will essentially control whether you're at first stage capacity. Or if you bump up to 100% capacity which will be second stage.
How much money does a 2 stage furnace save?
The DOE test procedure shows fuel savings of 3.4% for two-stage furnaces relative to single-stage furnaces at the same AFUE, while the 2006 ASHRAE test procedure shows only a 0.4% decrease in fuel consumption.
Do 2 stage furnaces save energy?
The ability to switch between two power modes makes two-stage furnaces more energy-efficient than their single-stage counterparts. The low power mode allows the unit to conserve energy as well as reduce temperature fluctuations and uneven heating in your home.
Are 2 stage furnaces quieter?
Two-Stage Furnaces Provide Quieter, More Efficient and Consistent Heating.
