NuTone Door LA 151WM User Manual

®
INSTALLATION INSTRUCTIONS  
READ & SAVE THESE INSTRUCTIONS!  
One Chime using the Transformer supplied.  
FIGURE 1  
Decorator  
To 115V 50/60 Hz A.C.  
Power Supply  
Side Door Front Door  
Pushbutton Pushbutton  
Rear  
Door  
Door Chimes  
Push-  
button  
CAUTION: Do not  
connect or disconnect  
wires with power  
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.  
applied to transformer  
Transformer  
For 2 Door Operation  
Do Not Connect  
Side Door  
COMMON  
8
8 OR 4 NOTE  
SELECTOR  
SWITCH  
Terminal  
Panel on  
Back of  
Chime  
Connect clock leads  
or light leads to  
terminal board  
attached to chassis  
(not shown).  
4
FOR USE WITH 16vAC  
TRANSFORMER  
CAUTION: DO NOT CONNECT  
OR DISCONNECT WIRES  
WITH POWER APPLIED TO  
SOFT  
LOUD  
(Where applicable.)  
TRANSFORMER  
37989  
VOLUME  
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.  
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.  
Rear  
Door  
Push-  
button  
Side  
Door  
Push-  
button  
Front  
Door  
Push-  
button  
To 115V  
50/60Hz A.C.  
Power Supply  
Transformer  
FIGURE 2  
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.  
COMMON  
COMMON  
8
4
8
4
8 OR 4 NOTE  
SELECTOR  
SWITCH  
8 OR 4 NOTE  
SELECTOR  
SWITCH  
FOR USE WITH 16vAC  
TRANSFORMER  
FOR USE WITH 16vAC  
TRANSFORMER  
CAUTION: DO NOT CONNECT  
CAUTION: DO NOT CONNECT  
OR DISCONNECT WIRES  
WITH POWER APPLIED TO  
TRANSFORMER  
OR DISCONNECT WIRES  
WITH POWER APPLIED TO  
TRANSFORMER  
SOFT  
LOUD  
SOFT  
LOUD  
VOLUME  
VOLUME  
37989  
37989  
WIRING  
One Electronic Chime with one 2-Note Chime  
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.  
Rear Door  
Pushbutton  
Side Door  
Front Door  
To 115V  
50/60Hz A.C.  
Power Supply  
Pushbutton Pushbutton  
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.  
Transformer  
FRONT  
COMMON  
TRANSFORMER  
8
4
8 OR 4 NOTE  
SELECTOR  
SWITCH  
REAR  
FOR USE WITH 16vAC  
TRANSFORMER  
CAUTION: DO NOT CONNECT  
OR DISCONNECT WIRES  
WITH POWER APPLIED TO  
TRANSFORMER  
SOFT  
LOUD  
VOLUME  
37989  
FIGURE 3  
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