NuTone BK240LWH Instructions

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NuTone offers two different mounting directions, horizontal
or vertical with this chime mechanism. This mechanism is
powered by a 16 volt AC transformer. (NuTone transformer
Model C915).
Use the appropriate wiring directions that follow.

WIRING

Turn Off Power at Service Entrance Before Wiring this Chime.
ALL ELECTRICAL WORK MUST BE DONE IN ACCORDANCE
WITH LOCAL AND/OR NATIONAL ELECTRICAL CODE AS
APPLICABLE.

ROUGH-IN WIRING

1. Install a standard single gang outlet box at desired location of
door chime.
2. Run 120 VAC line to the outlet box.
3. Run low voltage pushbutton wires to chime location. Note:
pushbutton wires MUST NOT be placed inside the outlet box
with the line voltage wires.
DO NOT MOUNT TRANSFORMER WHERE TEMPERATURE WILL
EXCEED 125° F.

FINAL WIRING

1. Wire Transformer to 120 VAC line (black to black; white to
white; green to ground).
2. Route the (2) yellow low voltage wires through the transformer
mounting plate as shown in Fig.1 (horizontal installation) and
Fig. 2 (vertical installation).
3. Secure transformer to outlet box with attached screws.
4. Route the (2) yellow wires from the transformer and all wires
from the door pushbutton(s) through the holes in the chime
base as shown in Fig.1 (horizontal installation) and Fig. 2
(vertical installation).
5. Secure door chime base to transformer using screws provided.
6. Connect the pushbutton and transformer wires to the chime
mechanism as shown in Fig. 3.
7. Install cover.
Button Wires
Transformer Wires
TWO NOTE
DOOR CHIME
FIG. 1
Chime
F
Mechanism
T
R
Rear Door
120 VAC (If Included)
Line In
Ground
16 VAC
Transformer
Transformer
Wires
Button
Wires
FIG. 2
Front
Door
FIG. 3