Installation Sheet

TRANSFORMER INSTALLATION INSTRUCTIONS

IMPORTANT: READ ALL INSTRUCTIONS BEFORE INSTALLING TRANSFORMER.

FOLLOW ALL NATIONAL AND LOCAL ELECTRICAL CODES.

CONTACT A QUALIFIED ELECTRICIAN IF THERE ARE ANY QUESTIONS AS TO THE SUITABILITY OF THE SYSTEM.

1. WARNING: TURN OFF POWER AT FUSE OR CIRCUIT BREAKER 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. Mounting locknut type transformer (Model 122): 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 (see Figure 1).

Mounting clamp type transformer (Model 125): Note: Mounting clamp requires a junction box with ﬂat sides and

knockouts. From exterior of junction box, pass transformer wires through knockout hole in junction box. Insert transformer

clamp through same knockout hole as wires. Tighten screw (provided) against edge of knockout hole on junction box

(see Figure 2).

4. Connecting Transformer Wires to Power Wires: If necessary, strip 1/2” of insulation from power supply wires (see

Figure 3). Twist black wire lead from transformer to black wire lead from power supply. Twist white wire lead from trans-

former 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 (see Figure 4).

5. Check all connections and replace cover plate.

6. Attach low voltage wires from chime, bell, or buzzer to secondary screw terminals on transformer (see wiring diagram

included with the chime, bell, or buzzer) (see Figure 5).

For Model 125 Only: See arrow markings on transformer to determine correct screw terminals for 8, 16, or 24 volt

connection (see Figure 6).

TO REPLACE EXISTING TRANSFORMER, FOLLOW INSTRUCTIONS ABOVE (OMIT STEP 2). LABEL WIRES PRIOR

TO REMOVAL OF EXISTING TRANSFORMER.

P.O. Box 90045

Bowling Green, KY 42102-9045

Figure / Figura 1 Figure / Figura 2

Figure / Figura 6Figure / Figura 5

1/2"

Figure / Figura 3

Figure / Figura 4

8V 10VA 16V 10VA

24V 20VA

LOAD

8V 10VA 16V 10VA 24V 20VA

8V 10VA 16V 10VA

24V 20VA

LOAD

8V 10VA 16V 10VA

24V 20VA

LOAD

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P.O. Box 90045 Bowling Green, KY 42102-9045 1/2" Figure / Figura 3 Figure / Figura 1 8V 10VA 16V 10VA 8V 10VA 16V 10VA 8V 10VA 16V 10VA LOAD LOAD LOAD 24V 20VA 24V 20VA 24V 20VA 8V 10VA Figure / Figura 5 Figure / Figura 4 Figure / Figura 2 16V 10VA 24V 20VA Figure / Figura 6 TRANSFORMER INSTALLATION INSTRUCTIONS IMPORTANT: READ ALL INSTRUCTIONS BEFORE INSTALLING TRANSFORMER. FOLLOW ALL NATIONAL AND LOCAL ELECTRICAL CODES.
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INSTRUCCIONES PARA INSTALAR EL TRANSFORMADOR IMPORTANTE: LEA TODAS LAS INSTRUCCIONES ANTES DE INSTALAR EL TRANSFORMADOR. CUMPLA CON TODOS LOS CÓDIGOS ELÉCTRICOS NACIONALES Y LOCALES. SI TIENE ALGUNA PREGUNTA RELACIONADA CON LA ADAPTABILIDAD DEL SISTEMA, PÓNGASE EN CONTACTO CON UN ELECTRICISTA CALIFICADO. 1. ADVERTENCIA: CORTE LA ALIMENTACIÓN EN EL FUSIBLE O DISYUNTOR ANTES DE INSTALAR EL TRANSFORMADOR. 2. Ubique o instale la caja de empalme cerca de la ubicación seleccionada para el montaje de su campana.