User's Guide

DOC ID - 1563 • Rev 09 6 / 17
(Optional) Installing the resistor and power booster
The resistor can be installed when using a mechanical chime to eliminate
potential doorbell buzzing, and the power booster improves doorbell sound.
To install the resistor:
1. Wrap the ends of the supplied resistor around the terminals on the doorbell.
2. Verify proper installation by ringing the doorbell.
Note: Connecting the resistor in the wrong direction does not harm either
device, but results in the doorbell not ringing correctly. To correct this
mistake, reverse the direction of the resistor.
Figure 3: Resistor installation
To install the supplied power booster:
1. Using a small flat head screwdriver, loosen the set screws on the supplied
screw terminal.
2. Connect end C of the black and red wires to the screw terminal, then connect
end A of each wire to the provided power booster then re-tighten set screws
on the screw terminal.