INSTALLATION INSTRUCTIONS
READ & SAVE THESE INSTRUCTIONS!
Two-Note Door Chime
MODEL: LB-18, LB-76 SERIES
•Designed for two-door operation.
•Model LB-76 is designed to be used with a NuTone Radio-Intercom system.
WIRING CAUTIONS: Before installing the transformer and chime, turn off the house power and leave it off until installation is complete.
Carefully fasten wiring to wall studs and ceiling joists
– avoid short circuits caused by staples or clips cutting through the wiring's insulation. When drilling into walls, be careful not to damage existing electrical cables.
All wiring must comply with local codes or the National Electrical Code. If you are unfamiliar with electrical wiring installation methods, secure the services of a qualified electrician.
NOTE: NuTone Model 101T (16V - 15VA) transformer is included with Model LB-76 Door Chime.
CHIME WIRING DIAGRAM
CAUTION: DO NOT USE THIS TRANSFORMER
FOR INTERCOM OR OTHER APPLIANCE
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FRONT DOOR |
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FRONT |
PUSHBUTTON |
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120v AC |
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WIRING |
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TRANS |
20-GAUGE INSULATED |
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2-CONDUCTOR WIRE |
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COMMON |
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REAR |
WIRES |
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NUTONE 101T |
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TRANSFORMER |
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REAR DOOR |
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PUSHBUTTON |
FIGURE 1
INSTALLATION
1.NuTone chimes are designed to be seen as well as heard. Locate the chime on a wall at eye level.
2.Mount the transformer to a convenient junction box or panel box. Connect the 120v AC house power leads to the transformer wires as follows: black to black;
black to white.
NOTE: Label all wires as they are run.
3.Run 20-gauge, 2-conductor wire from the transformer terminals to the chime site.
4.Wire and mount the pushbuttons. Run 20-gauge, 2-conductor wire from the pushbutton to the chime site.
5.If connecting Model LB-76 chime to a NuTone RadioIntercom, run NuTone IW-2 cable (22-gauge, 2-conductor) from the Radio-Intercom to the chime site. For connections to the Radio-Intercom, see instructions packaged with the Radio-Intercom Master Unit.
6.Pull all of the wires which have been run to the chime site through chime baseplate. Mount baseplate with supplied screws.
7.Connect wires as shown in Figure 1. Where applicable, make connections to Radio-Intercom as shown
in Figure 2.
8.Be certain the wires are not touching the chime tone bars or the power unit.
9.Restore the house power to transformer and test chime. If chime does not respond to pushbutton, check wire connection.
10.Install the chime over the baseplate.
NUTONE IW-2 CABLE
FROM RADIO-INTERCOM TO MODEL LB-76
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INTERCOM CHIME VOLUME CONTROL
TERMINAL BOARD
FIGURE 2
HOMEOWNER'S INFORMATION
“Sluggish” chime plungers
If chime plungers should ever get “sluggish” in their movement, clean the plungers with a non-flammable cleaning fluid and wipe dry.
CAUTION: Never oil chime plungers.
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