NuTone LA-151WM Series Installation Instructions

Decorator
Door Chimes
LB-46, LD-49, LA-58, LA-70MA,
& LA-151WM SERIES
Your NuTone Door Chime is designed for three (3) door
operation. It will sound either 8 or 4 notes for the front door,
one (1) note for a second door and a different note for a third
door. Use the NuTone transformer packaged with the chime
for best results.
When installing this chime and wiring has been completed,
check to make sure that the pushbuttons are in good
operating condition. When installed correctly, they must not
stick – meaning they must return to the original position to
open the circuit.
HELPFUL HINTS – This chime is "protection
packed". Handle carefully as you would any
precision instrument. Comply with local wiring
codes when wiring the chime. Upon
completion of the installation, if the chime does
not operate, recheck your installation with these
instructions and wiring diagram. If the chime
still does not operate, check the pushbutton(s)
for poor contact or loose connections.
INSTALLATION
Select a central location to insure an audible
signal throughout the home. For a large ranch-
style or multi-story home, two chimes may be
needed. Refer to Figures 2 and 3 for Multiple
Chime Wiring Information.
WIRING
NOTE: BE SURE HOUSE POWER IS TURNED OFF WHEN
INSTALLING THE TRANSFORMER.
1. Mount the transformer to a convenient junction box (attic location
is not recommended) or circuit breaker box. Connect the
transformer leads to house power leads: black to black and
white to white.
IMPORTANT: All wiring connections must comply with
national or local codes. Run two conductor, 18 gauge wire from
the transformer and pushbuttons to the chime location. Bring wires
through wiring access hole in the chime baseplate and fasten the
baseplate to the wall with screws provided. Connect wires to
chime terminal board as illustrated in Figure 1. For two chime
installation refer to Figure 2. For one chime with one two-note
chime, refer to Figure 3.
®
To 115V 50/60 Hz A.C.
Power Supply
Terminal
Panel on
Back of
Chime
Two Electronic Chimes using two (2) Transformers, connected in phase. Transformers
are packaged with the chimes or use one (1) NuTone Model: 301-N Transformer.
To 115V
50/60Hz A.C.
Power Supply
Transformer
COMMON
8
8 OR 4 NOTE
SELECTOR
4
SWITCH
SOFT
VOLUME
READ & SAVE THESE INSTRUCTIONS!
One Chime using the Transformer supplied.
Rear
Door
Push-
button
Transformer
COMMON
8
8 OR 4 NOTE
SELECTOR 4
SWITCH
SOFT
VOLUME
Side
Door
Push-
button
COMMON
8 OR 4 NOTE
SELECTOR
SWITCH
FOR USE WITH 16vAC
TRANSFORMER
CAUTION: DO NOT CONNECT
OR DISCONNECT WIRES
LOUD
WITH POWER APPLIED TO
TRANSFORMER
37989
One Electronic Chime with one 2-Note Chime
To 115V
50/60Hz A.C.
Power Supply
Transformer
COMMON
8
8 OR 4 NOTE
SELECTOR 4
SWITCH
FOR USE WITH 16vAC
TRANSFORMER
SOFT LOUD
VOLUME

INSTALLATION INSTRUCTIONS

Side Door Front Door
Pushbutton Pushbutton
CAUTION: Do not
connect or disconnect
wires with power
applied to transformer
For 2 Door Operation
Do Not Connect
Side Door
Connect clock leads
or light leads to
terminal board
FOR USE WITH 16vAC
TRANSFORMER
attached to chassis
CAUTION: DO NOT CONNECT
(not shown).
OR DISCONNECT WIRES
LOUD
(Where applicable.)
WITH POWER APPLIED TO
TRANSFORMER
37989
Rear
Front
Door
Door
Push-
Push-
button
button
8
4
FOR USE WITH 16vAC
TRANSFORMER
CAUTION: DO NOT CONNECT
OR DISCONNECT WIRES
SOFT
LOUD
WITH POWER APPLIED TO
TRANSFORMER
VOLUME
Rear Door
Side Door
Pushbutton
Pushbutton
CAUTION: DO NOT CONNECT
OR DISCONNECT WIRES
WITH POWER APPLIED TO
TRANSFORMER
37989
FIGURE 1
FIGURE 2
37989
Front Door
Pushbutton
FRONT
TRANSFORMER
REAR
FIGURE 3