Hook up doorbell chime
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Class 2 circuits power temperature controls, doorbells, door openers, lighting controls, irrigation controls, communications accessories, etc. Class 2 and 3 circuits are defined as the portion of the wiring system between the power source and the connected equipment. Because of the power limitations of Class 2 circuits, many consider them to be safe from a fire initiation standpoint and to provide an acceptable level of protection from electrical shock.
Doorbell Wiring Diagrams | Diy House Help
There are two types of poles positive and negative. This represents the electrical potential at the ends of a circuit.
But neither the push button nor the transformer terminals are polarity specific have a negative and positive , in which case the red or white wire can connect to either terminal of these components. Annunciator Bell wire vs. Bell wire comes as separate individual wires, while thermostat wire has a jacket to keep the wires bundled together. Depending on the layout of your home and location of doorbell components, choose if individual or bundled wires work better ref. Before beginning work, turn power off at the breaker panel or fuse box to avoid injury.
For safe wiring practices, consult the National Electrical Code and your local building inspector, or licensed electrician. This is the transformer supplied in contractor grade wired door chime kits. The same wiring diagram applies to a single bell or buzzer non-combination chime.
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Ignore the rear terminal. Doorbell wiring is also safer since doorbells work on low voltages between 16 and 24 volts and currents of less than 1 amp. Doorbells are wired with small gauge wire. Install a doorbell transformer. This device reduces volt house current to the low voltage needed for the doorbell system. Mount the transformer in an accessible but out-of-the-way location such as a basement joist.
Most transformers mount with screws. Connect the volt side of the transformer to house current by plugging it into an electrical outlet. Some transformer models require a direct hard-wired connection to house current. Install the doorbell or door chime in a location where people in the house will hear it when it sounds.
Most sounding devices are fastened to an interior room wall or hallway wall with screws driven into a stud. They fasten to drywall with toggle bolts or expanding anchors. Disconnect the doorbell transformer from its power supply. Connect a 2-wire doorbell cable by attaching its wires to the two low-voltage terminal screws of the doorbell transformer.
Run the cable through the wall to the doorbell sounding device See section 2. Connect the white wire from the transformer to the ground or common screw terminal on the sounding device. Leave the red wire exposed. Take another section of 2-wire cable. Connect the white wire of the new cable section to the remaining connection screw terminal of the sounding device.
How to Connect Doorbells
Run the new cable section to the location on the door frame where the doorbell will go. Connect each wire of the cable to one of the terminal screws on the doorbell button. Reconnect the doorbell transformer to its power supply. Nothing should happen at this point.
Test the system by pressing the button.