What does DL mean on my thermostat?

The DL Series Single Point On/Off Temperature Controls from Chromalox represents the state of the art in heat tracing accessories and are available in five models to handle a broad range of applications. Models include two ambient sensing thermostats and two line sensing thermostats.

The white wire is usually connected to the “W” terminal. The thermostat acts like a switch, like a light switch. The Red to white switch turns on the heat. Red to Green turns on the fan, Red to Yellow turns on the air conditioner.

Similarly, how do I reset my thermostat? Here are the steps you need to take to reset your AC thermostat.

  1. Shut Down Your AC at the Thermostat. The first step in resetting your AC thermostat is to turn it off at the AC unit.
  2. Find Your Circuit Breaker Box.
  3. Reset the Circuit Breaker for Your AC Unit.
  4. Wait 30 Seconds.
  5. Turn the AC Thermostat Back On.

Beside this, what does R stand for on a thermostat?

The terminals have letters that refer to functions. R is transformer power, typically 24V AC. Rc is for a separate transformer power from cooling. W is heat, C is common. Y is for cooling.

How many wires should my thermostat have?

In the most basic system, this functionality is provided by use of a fan center relay, and the low voltage wiring to the thermostat now will require a minimum of three wires (for heat only units) and four wires (for heat / cool / fan) for control.

Is RC the same as C wire?

Though it is a common notion, it may be incorrect to state that the C-wire powers the thermostat. Typically, the wires that give the power supply (usually termed as the ‘hot’ wires) are marked Rc (for cooling) and Rh (for heating). They give a 24-volt power supply from the HVAC system’s control panel.

What color wire goes where on a thermostat?

Here are common uses for wire colors: Blue or Black – C – Common wire, may be unused by your existing thermostat. Enables continuous power flow from the Red wire. Red – R – 24VAC power from the furnace’s transformer.

What color is the common wire?

The “common” is the “neutral” or “ground” wire, depending on the type of circuit. In normal US residential wiring, you’ll have a black “hot” wire, a white “neutral” or “common” wire, and a green or bare “ground” wire.

How do I know if my thermostat has AC wire?

It is easy to see if you already have a c-wire connected to your system. Simply remove your current thermostat face from its baseplate and look for the terminal labeled with the letter “c.” If this terminal has a wire attached to it, you have an active “c-wire.”

What does the blue wire go to on a thermostat?

Power comes into the thermostat on a wire connected to the transformer, which is usually red, and returns to the transformer on the C-wire, which is usually blue, but it can be black.

Is R and Rh the same on a thermostat?

R , Rh , and Rc are all the same, but not. In general terms, the R terminal is where you connect the signal voltage source. This allows current to flow from “into” the R terminal and “out of” the appropriate signal terminal ( W , Y , etc.) of the thermostat.

What happens if you wire a thermostat wrong?

Electric shock. Damaging the thermostat unit, the electrical system or even the AC/furnace unit itself. Dual-fuel systems, a poorly located thermostat, whole-home humidifiers, or incorrect wiring can make the installation of a thermostat a longer, more frustrating, and more complicated process.

How does a 2 stage thermostat 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 C stand for on thermostat?

What is the C Wire on a Thermostat? The c wire is an extra wire that can be used to provide a return path for continuous 24V power for any application. It’s normally used to provide a return path to power the thermostat. The “c” stands for common.

Why is there a jumper between R and RC?

Rc and R are the same terminal. For nest you don’t need a jumper. The reason for the 2 terminals is so you can use one thermostat for 2 types of units. Rc is for the indoor air handler when you run the AC.

How do you change a thermostat in a house?

Consider this your big picture guide through the process. Turn Off Power to A/C and Furnace. Remove Face of Old Thermostat. Take a Picture of the Wires. Disconnect Wires from Old Thermostat. Remove Old Mount. Put on the New Thermostat Mount and Connect Wires. Screw Faceplate Mount to Wall. Attach New Thermostat Face.