How to Wire Sensors to a WarmlyYours SCA-DUAL Snow Melt Controller

Hello. Today we're going to talk about hooking up the sensors that are used with our SCA120 controller. There are two different types of sensors that can be used with this controller: an aerial sensor and a gutter sensor. You can use either of these sensors by themselves, or you can use both at the same time. Today, we'll show you how to do that.

To make your connections for the sensors, you'll need to remove the clear plastic cover off the faceplate of the unit. This will allow you to access the control center. We have already taken the screws out of the control cover, and we will pull it out of the assembly. Inside is where we need to make our connections. Now we can see our ribbon connector attaching to the electronic card. The easiest way to wire in the sensors and make our connections to this card is to disconnect the ribbon connector. This is very simple; just spread the connectors apart, and it will come right off.

Now that we've disconnected the electronic card from the ribbon connector, it's a great time to get our low voltage wires into the low voltage section of this controller for connection to the board. I will insert these wires into this area. Here is our gutter sensor, and I will place our aerial sensor in the designated hole. This is the first step in getting them connected. Let’s take a closer look at the electronic card and the connections we need to make.

If you look closely, you can see that there are six terminals: black, white, red, and then a duplicate set of black, white, and red. All six terminals serve the same purpose. If you're hooking up one sensor, you can connect it to either the bottom three terminals or the three above them; it doesn’t matter. For two sensors, you would attach one sensor's black wire here, and its white and red wires here, and then the second sensor's wires to the other set of terminals. The two at the top are not used; they are for auxiliary purposes. The two below that are labeled "remote," which is for a remote control unit available from WarmlyYours. This remote control can be placed in your living room or kitchen, allowing you to control the unit from a distance, as the main unit is typically mounted in the basement or garage.

Since we are attaching two sensors, we will connect the red, white, and black wires from one sensor here, and then the red, white, and black wires from the other sensor here. These wires are very easy to install. You simply press down on the orange connector, insert the wire, and release it to secure the connection. We will continue this process with our white and red wires. Now that we have made our connections for both sensors, remember that you can attach either one or both, depending on your preference.

Now that our low voltage connections are made, it’s time to plug the ribbon connector back into the connector on this board. Once this board connector is securely pushed back in, you can clamp the sides closed to hold the ribbon connector in place. After that, pull your wires out from the side, and we can proceed to reattach our faceplate. We can see our low voltage connections coming out of the side of the controller, and to ensure they stay tight and do not pull on the internal connections, we will tighten the strain relief connectors on the outside. This will help make the setup a bit more weatherproof and secure the wires in place.

Thank you for watching today's video on how to connect the low voltage connections for the SCA-120. If you have any further questions, remember we are available 24/7 at 800-875-5285, or you can always check us out at WarmlyYours.com. Thanks for watching.