NuTone IM-440 Series - Manual (Page 9)

9
CONNECTING THE RADIO ANTENNA
1. Refer to Figure 18. Plug radio antenna (supplied with
IR105 rough-in frame) into the 2-pin connector located on
the main circuit board. Be certain the tab on the connector
is facing towards the top of the master unit, as illustrated.
In most locations the antenna supplied with the rough-in
frame provides adequate AM reception; however, in rural or
weak signal areas, a separate AM antenna may be required.
Refer to the following instruction when selecting and
connecting an AM antenna.
1. Refer to Figure 19. Move the auxiliary antenna selector
switch to the AM position.
2. Connect 50 feet of 22 ga. insulated wire to the screw
terminal marked AM ANTENNA.
3. Run the wire from the master station location to the attic.
Fasten the insulated wire at one end of the attic; stretch
the wire to its full length and fasten at the opposite end.
Fasten the insulated wire at several locations between
ends to prevent sagging.
NOTE: Any excess antenna cable should be located
outside of Rough-in.
INSTALLATION (Continued)
CONNECTING THE OPTIONAL
CHIME MODULE
It is now time to connect the optional chime module that you
earlier installed into the master station.
1. Refer to Figure 20. Identify the front chime pushbutton
wires.
2. Connect the front pushbutton wires to the screw terminals
marked FRONT and COMMON on the chime module.
3. Repeat steps 1 and 2 for the REAR and SIDE chime
pushbuttons.
4. Refer to the instructions packed with the chime module
for information on chime volume level and chime tune
selection (IA-29 only).
CONNECTING OPTIONAL
ELECTRONIC CHIME
1. Refer to Figure 21. Connect NuTone IW-2 cable from the
chime to the (+) and (-) screw terminals on the master
station’s main circuit board.
2. Refer to the instructions packed with the chime for
complete wiring information.
FIGURE 18
FIGURE 19 FIGURE 21
IMPORTANT: Failure to use NuTone IW-2 cable will
cause the system to hum at all times.
AM/FM
AM ANTENNA
AM ONLY
(–) (+)
ELECTRONIC
CHIME
FIGURE 20
FRONT
REAR
SIDE
COMMON
CHIME
VOLUME
TAB