Utilitech UT-122-02 Doorbell Transformer Installation Manual

Installation instructions / Instructions pour l’installation / Instrucciones de instalación
1. TURN OFF POWER AT FUSE OR JUNCTION BOX BEFORE INSTALLING TRANSFORMER.
2. Locate or install a junction box close to the selected mounting location for your chime. Do not
install transformer in an attic location. For new installation, remove cover plate and knockout from
junction box.
3. From exterior of junction box, pass transformer wires through hole in junction box. To secure
transformer to junction box, fasten locknut to transformer’s threaded shaft on inside of junction box
(Fig. 1).
4. If necessary, strip 1/2 inch of insulation from power supply wires. Twist black wire lead from
transformer to black wire lead from power supply. Twist white wire lead from transformer to white
wire lead from power supply. Twist green ground wire from transformer to bare (or green insulated)
copper lead of power supply. For metal junction boxes, it is required to connect green ground wire
from transformer to the metal junction box or clamp it to the metal conduit. Insulate each connection
using UL approved wire nut (Fig. 2).
5. Check all connections and replace cover plate.
6. Attach low-voltage wires from chime, bell or buzzer to secondary screw terminals on transformer.
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