Securing the sensor with a concrete anchor in Software

Encode QR Code JIS X 0510 in Software Securing the sensor with a concrete anchor

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Figure 8-4

5 Install the door sensors to the frame of your garage door This is done by lining up the magnet with the installed sensor and using sheet metal screws to secure to the frame This step is shown in Figure 8-5

Figure 8-5

Temperature sensors can be installed either indoors or outdoors The most important issue in temperature sensor installation is placement Because these sensors are reading temperatures and are sensitive to environmental changes, you shouldn t place the sensor too high (it will read hot, as warm air rises), and you shouldn t place the sensor too low (it will read cold, as cold air sinks) Also, you should keep the sensor away from direct sunlight

Once you ve decided where the sensor will be located, installation follows these steps:

1 Run cabling to the location where you want your temperature sensor positioned You might need to use fish tape if you are running the cabling through a finished wall 2 Prepare the cabling by stripping insulation from the cable (shown in Figure 8-6) and three of the wires (black, red, and white)

Figure 8-6

3 Remove the back of the temperature sensor casing This allows access to the sensor s electronics 4 Place the sensor on the wall and use a level to ensure it will be mounted squarely, as shown in Figure 8-7

Figure 8-7

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5 Mark and drill mounting holes 6 Install wall anchors if connecting the sensor to sheetrock, as shown in Figure 8-8 This is done by drilling a pilot hole, then tapping the plastic wall anchor into the wall with a hammer

Figure 8-8

If you are able to locate the temperature sensor over a wall stud, you don t need anchors However, if you are placing the sensor on sheetrock, it s a good idea to ensure the sensor doesn t pull out of the wall Whether or not you use an anchor (or need the stud) will depend largely on the size of the sensor you re installing Since temperature sensors are somewhat large, it is a good idea to make sure they won t pull out the sheetrock In the event a sensor does pull free from the wall, it will be difficult to reinstall it in the existing holes The next step is to use a larger screw, which might or might not fit the holes in your sensor Plus, you run the risk of the sensor pulling out of the wall again

7 Perform any knockouts that are necessary 8 Fasten the sensor to the wall 9 Connect the wires to the sensor in the following manner (shown in Figure 8-9):

Figure 8-9

If you re connecting a combination temperature/humidity sensor, you will use all four wires on the cable This connection will use not only the power and ground terminals on your control panel, but the other two wires will be connected to the (+) terminals on two separate zone inputs This connection on zone inputs is necessary because the sensor will read two items temperature and humidity However, because they are combined into a single package, power need only be drawn from a single source

On the exterior of the garage we placed a second temperature sensor This sensor was placed on the underside of the soffit This keeps the sensor out of the elements and direct sunlight This sensor is shown in Figure 8-10

Figure 8-10

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Not every Smart Home will be connected the same way We re using the Omni II, in conjunction with X10 devices, to provide the functionality we want Depending on the size and complexity of your project, you might not be using an Omni system You might be using a Stargate home control system, or you can simply connect these devices to an X10 system How you connect these sensors will depend on the system you re using