INSTALLATION
INSTRUCTIONS
This booklet contains information for installing the master
station. All system wiring and rough-in frames should be
installed before mounting and wiring the master station.
Refer to the installation instructions packaged with the
rough-in frames for detailed wiring information. For more
detailed information on wiring and mounting other system
components (i.e., speaker, remote control, etc.), refer to the
installation instructions packaged with each separate
component.
AM/FM
RADIO/CD PLAYER
INTERCOM SYSTEM
MODEL: IM-4406 SERIES MASTER STATION
IM-4406 SERIES REPRESENTATIVE WIRING ILLUSTRATION
NUTONE CHIME
TRANSFORMER
14/2 WITH GROUND
(OBSERVE LOCAL CODES)
120V 60HZ (CLASS 1)
Use this diagram for reference only.
See IR-105 Rough-in frame instructions
for detailed wiring.
120V 60HZ
(CLASS 1)
(OBSERVE
LOCAL CODE)
NUTONE
IW-6
OUTSIDE
REMOTE
IW-2
OUTSIDE
PUSHBUTTON FOR
OPTIONAL CHIME
MODULE
(2) 801T
TRANSFORMERS
SECONDARY:
18V, 72VA
SPEAKER
CONTROL
INSIDE
REMOTE
CONTROL
IW-2
INSIDE
ANTENNA
INSIDE
SPEAKER
EARTH
GROUND
ATTIC
OPTIONAL
ELECTRONIC
DOOR CHIME
INSIDE
SPEAKERS
W/CONTROLS
14 GA
300´ MAX
NUTONE IW-2
IW-6
200´ MAX
NUTONE
IW-2
TRANSFORMER
120V 60HZ
(CLASS 1)
(OBSERVE
LOCAL CODE)
301T
IM-4406
MASTER STATION
100´ MAX S-143
100´ MAX S-143
OPTIONAL WIRING
14 GA
GROUND
IW-2
FOR DOOR
RELEASE
DR-1/DR-2
DOOR RELEASE
SHIELDED
AUDIO
CABLES
MUSIC
DISTRIBUTION
VOLUME
CONTROL
IA-6C
RECEPTACLE
DESKTOP
FRAME WITH 5˝
REMOTE
OPTIONAL
MUSIC
SOURCE
5˝ PATIO
DOOR
SPEAKER
SPEAKER
IA-6
PLUG
W/CONTROLS
MUSIC
DISTRIBUTION
SPEAKER
DOOR SPEAKER MODELS WITH CHIME
PUSHBUTTON ALSO REQUIRE 18/2 (S-143)
TO CHIME LOCATION OR IW-2 TO MASTER
IF CHIME MODULE IS USED.
120V. 60HZ (CLASS 1)
(OBSERVE LOCAL CODE)
300´ MAX
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INSTALLATION
CONTENTS OF CARTON
Check (✓) for the following IM-4406 carton contents.
Use NuTone IW-2, 22 ga. twisted pair for connecting:
• Door speakers to master
• Remote controls to speakers
❏ IM-4406 master station
❏ Terminal board
❏ Transformer cover
❏ Hardware bag assembly containing:
2 - shoulder screws
• Speaker volume control (IC901) to master
• Speaker volume control (IC901) to speakers
• Electronic chime audio output to master
• Pushbutton to chime module
12 - No. 6 x 3/8 screws
4 - colored panel mounting screws
4 - ‘L’ panel mounting brackets
❏ Homeowner’s manual with room labels
❏ Installation instructions
Use NuTone S-143, 18 ga. twisted pair for connecting:
• Pushbutton to electronic chime
• Electronic chime to chime transformer
❏ Product Registration Warranty Card
Use Nº14/2 power cable with ground, Class 1 UL Listed
(Observe local codes) for connecting:
NOTE TO INSTALLER: Do not discard these
installation instructions. Please transfer all
installation instructions, warranty registration
and homeowner’s manual to the homeowner.
• Transformers to 120v AC
Use shielded audio cable for connecting external audio
sources to the master station.
REMOTE STATION WIRING
PRECAUTIONS AND GUIDELINES
An individual 6-wire cable (IW-6) must be connected from
each remote station or remote control location to the master
station’s terminal board.
Maximum station wire length: 750 ft.
Maximum total length of IW-6 cable per system: 4,000 ft.
The NuTone IM-4406 master station has been designed for
ease of installation. Please read and follow ALL installation
instructions, guidelines and precautions. Any deviation from
these instructions or miswiring combinations may result in
unit failure and void of warranty.
WARNING!
IMPORTANT! NuTone cannot be responsible for
improper system operation that results from
interference generated by light dimmers, fluorescent
lighting fixtures, and similar electrical products. Such
interference must be corrected at the source. TO HELP
REDUCE THIS INTERFERENCE, ALL WIRING
CONNECTIONS TO THE MASTER MUST BE PLACED
AT LEAST 12 INCHES FROM ANY AC POWER WIRING.
AVOID RUNNING INTERCOM WIRES PARALLEL TO
AC POWER WIRING.
120 Volt AC Power to Transformers in the IR-105
Rough-in MUST Remain OFF until ALL System Wiring
at the Master and Remote Stations is Complete.
• Observe all local building regulatory codes in your area.
• All screw terminals at the master and remote stations must
be secure.
• Observe all color code connections of wires when
connecting the remote stations to the master.
• The IM-4406 is designed to be installed with only NuTone
specified wire. No other wire should be used. The use of
wire other than NuTone wire will void all NuTone warranties
and may result in faulty installation and improper operation.
MAXIMUM NUMBER OF REMOTE STATIONS
The master station will accommodate up to 9 connections
at the terminal board. These connections can be any
combination of remote stations, remote controls or volume
controls. It will also accommodate 3 door speaker
connections.
IMPORTANT WARNING!
THE POWER TRANSFORMER CONTAINS AN
INTERNAL FUSE.
If more than 9 stations are required, use the optional
DO NOT SHORT THE LOW VOLTAGE CONNECTING
SCREWS OF THE TRANSFORMER OR THE
TRANSFORMER WILL BE DESTROYED!
NOTE: NEVER connect more than one remote
station to a set of screw terminals.
Model Nº IA-440 expansion kit. This will allow an additional
6 connections at the master.
WIRING SPECIFICATIONS
See the IR-105 master rough-in frame installation instructions
for detailed wiring information.
Use NuTone IW-6, 3 twisted pair for connecting:
• Remote controls to master
• Remote stations to master
3
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INSTALLATION (Continued)
2. Refer to Figure 2. Connect the IW-6 cable from each
WARNING! NEVER EXCEED A TOTAL OF 15 NUTONE
25 OHM SPEAKERS ON THIS SYSTEM.
remote to the appropriate set of terminal screws at the
master station’s terminal board. When connecting the
cable to the terminal board, be sure to observe the
matching of all color codes.
WARNING! NEVER USE STANDARD 8 OHM STEREO
SPEAKERS ON THIS SYSTEM. USE ONLY NUTONE
SPECIFIED SPEAKERS ON THIS MASTER.
Connect:
RED to RED
RED/WHT to RED/WHT
BLK to BLK
BLK/WHT to BLK/WHT
ORN to ORN
ORN/WHT to ORN/WHT
MOUNTING THE TERMINAL BOARD
Only connect one remote to each set of screw terminals.
After completing all connections, check for any shorted
wires. Dress cables flat against the terminal board to allow
space for the master station to be properly secured.
1. Remove and clean any drywall debris or dust from the
rough-in before beginning installation.
2. Refer to Figure 1. Locate the terminal board in the left
rear section of the rough-in frame.
3. Use four (4) Nº 6 x 3⁄8“ screws supplied to secure the
terminal board to the rough-in frame.
IW-6
MOUNTING HOLES
4. Make certain the lower right-hand screw is secure and
snug against the ground lug which covers the mounting
hole in the terminal board. Do not bend ground lug.
Make sure it is positioned between the screw and
terminal board.
RED
RED/WHT
BLK
IMPORTANT
DO NOT APPLY POWER TO THE SYSTEM UNTIL ALL
CONNECTIONS ARE COMPLETE AT THE MASTER
AND REMOTE STATIONS.
BLK/WHT
ORN
ORN/WHT
FIGURE 2
3. Refer to installation instructions packaged with the remote
stations and remote controls for wiring these units.
4. Refer to Figure 3. Use the Wire Matching Chart if you are
retro-fitting a system with the previously used IW-6R cable.
IMPORTANT – WHEN NUTONE MODEL IW-6R
WIRING IS USED:
CONNECT TO THE
SCREW TERMINALS
ON THE TERMINAL
BOARD MARKED:
FIGURE 1
CONNECTING THE REMOTE WIRING
1
2
3
4
5
6
ORN
BLK
BLK/WHITE
ORN/WHITE
RED
All Remote Stations, Remote Controls, Speaker
Volume Controls, and Door Speaker Wiring MUST
Return Directly to the Master Station. DO NOT
CONNECT WIRING FROM SPEAKER TO SPEAKER!
RED/WHITE
1. Dress all remote wiring through the rectangular holes
in the upper right and left sides of the rough-in frame.
All wiring connections are made to the master station’s
terminal board.
BLUE STRIPE
FIGURE 3
4
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INSTALLATION (Continued)
CONNECTING VOLUME CONTROL WIRING
PREPARING MASTER STATION PANEL FOR
OPTIONAL DOOR RELEASE PUSHBUTTON
Refer to Figure 4. If a NuTone Volume Control is installed in
the system, connect the control’s IW-2 wiring to the ORN and
ORN/WHT screw terminals at the master station. Only ONE
NuTone speaker may be connected to each volume
control. Each volume control/speaker counts as a
remote station. Remember: The maximum remote
connections to the Master Station is 9. Adding the
optional IA-440 expansion module will increase the
system remote capability to 15 stations.
To remove the pushbutton cover, position the master station
face up. Be careful not to damage the cables on the back of
the unit.
1. Refer to Figure 6. Open the left-hand door on the master
station panel.
FIGURE 6
ORN
2. Cut the 4 retainer webs from the pushbutton cover.
ORN/WHT
3. Remove cover. The door release pushbutton will be
installed and connected after the master panel has been
mounted to the rough-in frame.
MOUNTING THE OPTIONAL CHIME
MODULE IN THE MASTER STATION PANEL
FIGURE 4
1. Position the master station panel face down on a soft cloth.
NEVER USE 8 OHM STEREO SPEAKERS
WITH THIS SYSTEM!
2. Refer to Figure 7. Align the optional NuTone IA-28 or
IA-29 chime module onto the mounting bracket located in
the master station.
Refer to the installation instructions packed with the speaker
volume control for wiring this unit.
SNAP IN PLACE
CONNECTING DOOR SPEAKER WIRING
The Door Speakers connect to the Master Station Terminal
Board with twisted pair IW-2 wire.
1. Refer to Figure 5. Connect the two wires from the Door
Speaker(s) to the 2 screw terminals marked DOOR
SPEAKER on the master station terminal board.
RED
WIRE
IA-29 ONLY
FIGURE 7
3. Apply firm, but even pressure to each side of the chime
module until it snaps into place.
4. Plug the 4 pin connector on the module into the connector
located on the master. When properly installed, the ribbon
cable will point away from the master station’s circuit
boards, as illustrated.
5. Connection from the pushbuttons to the master will be
made after the master panel has been mounted.
DOOR
SPEAKER
FIGURE 5
5
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INSTALLATION (Continued)
Model IA-29 Only
2. Refer to Figure 10A and 10B. For rough-in frames which
are recessed into the wall opening, insert two (2) shoulder
screws (provided) into the front two holes in the rough-in
frame. For rough-in frames which are mounted flush with
the wall, insert two (2) shoulder screws into the back two
holes in the rough-in frame.
1. Refer to Figure 8. Locate the chime selector switch
mounting bracket in the master unit.
BACK HOLE – FOR
FLUSH MOUNTED
ROUGH-INS
FRONT HOLE –
FOR RECESSED
ROUGH-IN
FIGURE 10A
FIGURE 10B
3. Refer to Figure 11. Attach master panel to rough-in
frame by placing mounting hinge keyhole slots over
shoulder screw heads in the rough-in frame.
4. Refer to Figure 12. Slide master station panel to the right,
then forward until it is flush with the wall surface.
5. Align master panel with rough-in frame.
FIGURE 8
2. Remove and set aside the chime selector switch retaining
screw located in the master unit.
3. Remove and discard the square foam pads on the chime
selector switch PC board connected to the chime module.
4. Slide the PC board into the mounting bracket on the
master station.
5. Fasten the chime selector switch PC board with the
retaining screw (earlier removed).
FIGURE 11
FIGURE 12
6. Refer to Figure 13. Attach support strap to rough-in
frame by attaching metal hook into hole in top of rough-in
frame. Using pliers, squeeze hook closed. Hook must not
come loose when master is later secured.
MOUNTING THE MASTER STATION
NOTE: If an optional IA-440 expansion module is to be
installed into the IM-4406 master station, it should be
installed before mounting the master station. Refer the
installation instruction provided with the expansion module
before performing the following mounting steps.
FIGURE 13
1. Refer to Figure 9. Use two (2) #6x3⁄8˝ screws per bracket
to attach each of the four (4) mounting brackets to the
rough-in frame. Before tightening, slide the bracket so it is
flush with the wall surface (flush with rough-in frame if the
rough-in is installed after the wall board). Tighten all eight
(8) screws.
FIGURE 9
6
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INSTALLATION (Continued)
MOUNTING THE TRANSFORMER COVER
IMPORTANT: The transformer cover must be installed
for proper operation of the intercom.
CONNECTING THE
POWER TRANSFORMERS
1. Refer to Figure 15. Remove the left front and right rear
screws from the transformer enclosure. Set screws aside
for later installation.
2. Position the transformer cover (with insulator positioned
towards transformers) over the transformer enclosure so
holes in cover align with holes in enclosure.
CAUTION
BE SURE THE AC POWER IS OFF BEFORE
CONNECTING THE POWER TRANSFORMERS. DO
NOT TURN AC POWER ON TO TRANSFORMERS
UNTIL ALL WIRING AT THE REMOTE AND MASTER
STATIONS IS COMPLETE!
3. Fasten cover with two (2) screws previously removed.
1. Refer to Figure 14. The transformers’ primary leads
should already be connected to the 120 volt AC house
supply wiring. Be sure power is off before connecting
transformers to master unit.
IMPORTANT WARNING!
THE POWER TRANSFORMER CONTAINS AN
INTERNAL FUSE.
DO NOT SHORT THE LOW VOLTAGE CONNECTING
SCREWS OF THE TRANSFORMER OR THE
TRANSFORMER WILL BE DESTROYED!
2. Locate the two (2) sets of red/wht transformer leads on
the lower left corner of the master unit. Connect one pair
of low voltage leads to each transformer located in the
bottom of the rough-in.
FIGURE 14
FIGURE 15
7
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INSTALLATION (Continued)
CONNECTING THE MASTER STATION TO
THE TERMINAL BOARD
1. Refer to Figures 16 and 17. Plug all five connectors into
the terminal board.
1. • Insert black ribbon cable with 10 pin plug into CN104
connector.
1. • Insert multi-color ribbon cable with 14 pin plug into
CN102 connector.
1. • Insert multi-color ribbon cable with 9 pin plug into CN106
connector.
1. • Insert brown shielded cable with 12 pin plug into CN101
connector.
1. • Insert gray shielded cable with 11 pin plug into CN116
connector.
1. • No connection is made to connector CN111 unless
IA-440 expansion module is used.
2. Make sure the alignment keys are properly aligned before
applying pressure to the connector.
3. After all connectors are plugged into the terminal board,
position the extra ribbon cable length toward the top of the
rough-in frame.
FIGURE 16
4. If an IA-440 expansion module is included in this
installation, proceed with the connection of the module to
the expansion module terminal board at this time. Refer to
the installation instructions provided with the expansion
module.
CN106
MULTI-COLOR
RIBBON CABLE
WITH 9 PIN PLUG
CN101
CN116
GRAY CABLE
WITH 11 PIN
PLUG
BROWN CABLE
WITH 12 PIN
PLUG
CN104
CN102
CN111
USED WITH
OPTIONAL IA-440
EXPANSION
MODULE
BLACK RIBBON
CABLE WITH
10 PIN PLUG
MULTI-COLOR
RIBBON CABLE
WITH 14 PIN
PLUG
FIGURE 17
8
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INSTALLATION (Continued)
CONNECTING THE RADIO ANTENNA
CONNECTING THE OPTIONAL
CHIME MODULE
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.
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.
TAB
4. Refer to the instructions packed with the chime module
for information on chime volume level and chime tune
selection (IA-29 only).
FRONT
REAR
SIDE
COMMON
FIGURE 18
CHIME
VOLUME
NOTE: Any excess antenna cable should be located
outside of Rough-in.
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.
FIGURE 20
CONNECTING OPTIONAL
ELECTRONIC CHIME
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
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.
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.
IMPORTANT: Failure to use NuTone IW-2 cable will
cause the system to hum at all times.
AM/FM
AM ONLY
AM ANTENNA
(–)
(+)
ELECTRONIC
CHIME
FIGURE 21
FIGURE 19
9
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INSTALLATION (Continued)
CONNECTING OPTIONAL ACCESSORIES
CONNECTING POWER TO THE OPTIONAL
CP-95 CASSETTE PLAYER
1. Refer to Figure 22. To connect an external audio source
(NuTone Model CP-95 cassette, stereo system, VCR, TV,
etc. with low level audio output) to the IM-4406 master
station, locate the TAPE and AUXiliary inputs on the
upper center of the master station’s main circuit board.
2. Connect an RCA™ phono type plug to the shielded audio
cable coming from the external audio source. Follow the
phono plug manufacturer’s instructions when connecting
to the cable.
3. Insert the phono plug into the appropriate input jack
(TAPE or AUX) on the master station’s main circuit board.
NOTE: The TAPE and AUX inputs have input audio level
controls to allow matching of the external audio source
with the radio and CD audio of the master.
1. Refer to Figure 23. Cut the protective sleeving from the end
of the BLK/WHT CP-95 power supply leads.
2. Separate 2 inches of the supply leads.
3. Strip the outer insulation back approximately 5/8˝ from the
end of the cable.
4. Connect the power leads from the CP-95 to the CP-95 power
supply leads of the master station (polarity is not important).
Use wire nuts to protect the bare wires from shorting.
4. To use the selected source audio for recording onto a
cassette recorder, insert the recorder’s plug into the
master station’s LINE OUT jack.
5. Optional connection to provide program audio only:
• The CD, radio or optional audio sources can be
channeled through an auxiliary amplifier (purchase
a NuTone Model IMA-516 separately) to provide
uninterrupted music (no intercom) to separate
speakers. This type of installation can be used for
example, in a doctor’s office where intercom and
music are desired in the office area, but music only
is desired in the waiting room.
CONNECT CP-95
POWER LEADS
• NOTE: If an auxiliary amplifier is used, connect the
master station’s LINE OUT jacks to the auxiliary
amplifier’s low-level audio input wires using shielded
audio cable (not supplied by NuTone).
FIGURE 23
• NOTE: When using the LINE OUT for recording
program audio or distributing program audio only
through an external amplifier, the automatic CD PAUSE
should be disabled or the audio present on the LINE
OUT jack will stop when the intercom or chime is used.
To disable the CD PAUSE, refer to the homeowner’s
manual.
IMPORTANT
Be sure the power to the transformers in the IR-105 rough-in
is OFF before connecting the CP-95 power supply leads!!
AUX INPUT
LINE OUT
TAPE INPUT
FIGURE 22
10
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INSTALLATION (Continued)
MOUNTING AND CONNECTING
SECURING THE MASTER PANEL
OPTIONAL DOOR RELEASE PUSHBUTTON
1. Refer to Figure 26. Inspect all wiring connections to make
sure they are complete and correct.
You have previously prepared the master station for the
optional release pushbutton.
2. Make sure all antenna connections are secure.
1. Refer to Figure 24. Feed one wire from the door release
transformer and one wire from the door release mechanism
through the pushbutton hole in the master station panel.
3. Dress all remote station wires flat against the terminal
board.
CAUTION
WHEN RAISING THE MASTER PANEL TO ITS FINAL
POSITION, DO IT SLOWLY! BE CAREFUL NOT TO HIT OR
DAMAGE ANY OF THE CIRCUIT BOARDS OR CABLES.
FIGURE 24
2. Connect the two (2) wires to the PB1WHCL pushbutton.
3. Rotate the pushbutton so the screws are on the top and
bottom as illustrated, then snap the button into the
mounting hole.
CONNECTING THE MEMORY
BACK UP BATTERY
Refer to Figure 25. Connect the 2-pin plug from the battery
to the connector located on the control circuit board.
2 PIN PLUG
FIGURE 26
2 PIN
CONNECTOR
4. Position the master station panel over the rough-in frame
and align screw holes in master with mounting brackets.
Two (2) mounting holes are located behind the CD
Player door.
5. Secure the master station panel to the rough-in mounting
brackets with four (4) screws (provided).
NOTE: The mounting screws will pierce the wall surface
behind the mounting brackets. If the wall surface is hard, a
clearance hole must be drilled behind the mounting bracket
before securing the master station panel.
FIGURE 25
POWERING UP THE SYSTEM
Once all connections have been completed throughout the
system, it is time to apply power to the master station.
1. Apply power to the master station by turning on the circuit
breaker that supplies power to the transformers in the
IR-105 rough-in frame.
2. When power is first applied, the LCD display will flash
1:00 PM. Refer to the Operational Checkout section of
this manual for additional information.
PLEASE NOTE
If permanent AC power has not been connected, or the
AC power will be off for long periods of time, the
battery should not be connected at this time. When the
battery is connected, the correct time and programmed
radio memory stations will be retained for
approximately 30 hours on battery backup.
11
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OPERATIONAL CHECKOUT
SYSTEM OPERATING CONTROLS
SCAN: Activates scan tuning during AM/FM operation.
21 DISPLAY: Sets the LCD display mode: CLOCK, RADIO FREQUENCY,
1
2
3
TRACK NUMBER or TIME PLAYED.
▲▼ UP/DOWN TUNING: Provides manual tuning of the AM/FM radio.
22
23
INTERCOM VOLUME: Adjusts intercom audio level throughout the
system.
MEMORY 1-6 KEYS: Provides direct access to stored radio
frequencies.
MASTER STATION STATUS SWITCHES: Sets the master station in
one of the following modes: RADIO/INTERCOM, INTERCOM ONLY,
OFF or MONITOR.
4
TRACK : Returns to the beginning of the current track and/or previous
tracks.
5
6
TRACK : Advances the CD Player to the beginning of the next track.
24
REMOTE STATION STATUS SWITCHES: Sets the remote stations in
one of the following modes: RADIO/INTERCOM, INTERCOM ONLY,
OFF or MONITOR. Note: If the optional expansion module is installed, 6
additional switches will be located on the right side of the master.
RDM/RPT: (Random/Repeat) Set the CD play mode to: REPEAT ONE,
REPEAT ALL or RANDOM PLAY.
7
PLAY/PAUSE: Activates the operation of the CD Player. Pressing the
key during play operation will pause the CD Player.
25
26
DOOR RELEASE KNOCKOUT: Mounting hole for optional door
release pushbutton.
8
9
SEARCH : Quickly searches the track in the forward direction.
SEARCH : Quickly searches the track in the reverse direction.
CD PLAYER DOOR: Open CD door and snap CD disc onto spindle.
TIME SET: Used with the ▲ ▼ keys to set the clock and timer.
END CALL: Ends intercom communication and returns system to audio
source.
10
11
27
28
29
DOOR TALK: Initiates intercom communication to the door speakers.
INSIDE/PATIO: Initiates intercom communication to remote stations.
12 MEMORY SET: Stores desired radio frequencies into a selected
memory location.
TIMER: Enables or disables the radio timer. The indicator light will
illuminate next to the Timer key when the Radio Timer is activated.
13
14
15
16
CLOSE: Press here to close CD Player door.
30 PROGRAM AUDIO SOURCE: Selects the program audio source: AM,
FM, TAPE and AUX. The indicator light will illuminate next to the
selected program audio source.
TREBLE: Adjusts the high frequency audio content of the source audio.
STOP: Ends the CD Play mode and turns off the program audio.
BASS: Adjusts the low frequency audio content of the source audio.
ELECTRONIC CHIME TUNE SELECTION: Selects the tune of the
optional NuTone IA-29 Chime Module.
31
32
33
17 SYSTEM VOLUME: Adjusts the program audio level throughout the
system.
PROGRAM OFF: Turns off the selected program audio source. The
program Off key does not affect the intercom or chime operation.
18
19
OPEN: Causes the CD Player door to open.
LOUDNESS: Compensates for the bass and treble response the human
ear has when listening to audio at low volume levels.
MASTER VOLUME: Adjusts the volume at the master station.
20
MICROPROCESSOR RESET: Initiates a reset of the microprocessor.
NOTE: A reset of the microprocessor will erase the system’s memory.
1
2
3
5
6
4
7
8
9
33
32
31
30
29
28
27
26
13
18 17 16 15
14
25
20
12 11 10
24
23
21
19
22
12
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OPERATIONAL CHECKOUT (Continued)
3. Press the END CALL key. Intercom communication will
DIGITAL CLOCK
end and radio audio will return to all stations in the system.
SETTING THE TIME
The proper clock setting procedure is arranged in 4
segments. Each segment must be completed in 5 seconds.
Follow the procedure below.
4. Press the DOOR TALK key. Radio audio will mute and
audio from the initiating station will be heard at the door
speaker(s) and all stations in the system.
5. Release the DOOR TALK key. Audio from the door
1. Press the TIME SET key one time.
speaker(s) will be heard at all stations in the system.
SET
TIME
The ‘Hours’ display will begin
flashing, and the words ‘Set Time’
will display.
6. Press the END CALL key. Door communications will
end and radio audio will return to all stations in the
system.
:
PM
2. Within 5 seconds, press the ▲ or ▼ key until the correct
7. Press and hold the END CALL key for 2 seconds at any
Hour and AM/PM are displayed.
remote station. The radio will turn off.
3. Within the next 5 seconds, press the TIME SET key
8. Press and hold the END CALL key for 2 seconds at any
remote station. The radio will turn on. For additional
information on remote radio control, refer to the
homeowner’s manual.
again. The ‘Minutes’ display will begin flashing.
4. Again, within 5 seconds, press the ▲ and ▼ keys until the
correct minute is displayed.
5. Release the keys after entering the correct time. The
display will stop flashing in 5 seconds, and the time will
be set.
NOTE: Pressing the ▲ or ▼ keys momentarily will cause the
time to advance or reverse one digit. Pressing the ▲ or▼
keys continuously for more than 1⁄2 second will cause the
digits to advance or reverse at high speed.
9. With a CD in the CD player, press and hold the END
CALL key at any remote station until a BEEP BEEP is
heard at the remote station. In a few moments, the CD
will begin playing.
10. Press and hold the END CALL key for 2 seconds at any
remote station. The CD player and audio will stop. For
additional information on remote CD Player control, refer
to the homeowner’s manual.
SYSTEM CHECKOUT
11. Repeat procedure at all remote stations.
Set the following control settings and perform the indicated
tests.
SETTING PROGRAM AUDIO CONTROLS
1. Set all STATION STATUS SWITCHES to the RADIO
The volume levels required at each station may vary with the
location of the speaker and the size of the room where the
speaker is located. Spend some time experimenting with the
volume levels, and adjust each speaker so that you can
clearly hear the radio, CD and intercom. Use the following
procedures to set your system’s volume levels.
INTERCOM position.
2. Set the MASTER VOLUME control to 2⁄3 position.
3. Set each remote station VOLUME control to 2⁄3 position.
4. Set the SYSTEM VOLUME control to 1⁄3 position.
5. Set the INTERCOM VOLUME control to 2⁄3 position.
6. Set the BASS and TREBLE control to 1⁄2 position.
1. At each remote station, turn the VOLUME control
completely clockwise to maximum volume.
2. At the master station, set the REMOTE and MASTER
SPEAKER STATUS SWITCHES to the RADIO
INTERCOM position.
7. Press the OPEN key on the master station. The CD
Player door will open. Complete opening the door by
moving the CD door from left to right.
3. Turn the MASTER VOLUME control to maximum volume.
8. Snap a CD disc onto the spindle of the CD player.
4. Turn the SYSTEM VOLUME control on the master station
to approximately 1⁄3 volume.
5. Select an AM or FM radio station with a strong, clear signal.
6. Adjust the master station’s SYSTEM VOLUME control
until you have ample volume at the remote station that
requires the highest volume (i.e. a large living room, family
room, basement, etc.)
CAUTION
Never touch the lens of the CD player or damage
will result!
9. Close the CD player door by moving the door from right to
left until the door latches closed.
10. Tune in a strong local FM radio station as follows:
• Press the FM key.
• Locate a strong FM radio signal by using the ▲ ▼ keys.
Beginning with the master station, check each station in the
system for proper operation using the following procedure.
PLEASE NOTE: The master station and all remote stations
(except door speakers) are equipped with volume controls.
Although the master station SYSTEM VOLUME sets the
system’s volume level, you may adjust an individual
speaker’s volume level as desired.
1. Press the INSIDE/PATIO key to initiate a call. Radio
audio will mute.
2. Release the INSIDE/PATIO key to hear the reply.
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OPERATIONAL CHECKOUT (Continued)
SETTING PROGRAM AUDIO CONTROLS
(CONTINUED)
7. Adjust the MASTER VOLUME control and all remote
station’s volume controls to the volume level you desire.
In order to have proper intercom audio levels, it is
SETTING THE BEEP TONE LEVEL
The internal BEEP tone volume control has been factory set
to a normal level for the BEEP tone to be heard when the CD
Player operation is initiated from a remote station by using
the AM/FM/CD CONTROL/END CALL key. Should that level
require adjustment, use the following procedure:
1. Refer to Figure 28. Using a thin-blade screwdriver, adjust
the BEEP TONE volume control counter-clockwise as
viewed from the rear of the master station panel to reduce
the BEEP level.
recommended that the MASTER VOLUME and remote
stations’ VOLUME controls be set at 2⁄3 volume or higher.
SETTING INTERCOM VOLUME
1. Initiate an intercom call from the master by pressing the
2. To increase the BEEP level, turn the control clockwise.
INSIDE/PATIO key.
2. Speak with a clear normal voice about 2-3 feet from the
master station’s speaker.
3. Adjust the INTERCOM VOLUME control until the initiating
station’s audio is clearly heard at all stations in the
system.
PLEASE NOTE: The volume control at all stations should be
set between 1⁄2 to maximum volume for proper intercom
operation.
4. Repeat the above procedure at several remote station
locations until an acceptable intercom audio level is
achieved at all stations.
BEEP TONE
SETTING INTERNAL INTERCOM VOLUME
CONTROL
FIGURE 28
The internal intercom volume control has been factory set for
optimum intercom operation. Should the intercom gain need
to be adjusted beyond the range of the Intercom Volume
Control behind the left front door, use the following procedure:
1. Refer to Figure 27. Using a thin-blade screwdriver, adjust
the internal control counter-clockwise as viewed from the
rear of the master station panel. This adjustment will
reduce the intercom gain.
SETTING THE EXTERNAL AUDIO
SOURCE LEVEL
The TAPE and AUX level controls have been factory set at
maximum. These controls can be adjusted to match the
external audio source level with the built-in radio and CD
Player levels. Use the following procedure:
1. Press the FM key.
2. Tune the radio to a strong local radio station.
3. Turn on the external audio source(s) connected to the
master station.
2. To increase the intercom gain, turn the internal control
clockwise.
4. Switch the master station from FM to TAPE or AUX.
5. Refer to Figure 29. Using a thin-blade screwdriver, adjust
the TAPE/AUX control to match the audio level of the
external audio source with the FM radio.
ROUGH-IN
AUX
TAPE
LEVEL
LEVEL
BOTTOM OF
MASTER
FIGURE 27
FIGURE 29
14
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OPERATIONAL CHECKOUT (Continued)
Remote Station Control Voltage Test – Displays the
voltage at the master’s microprocessor control line. To
activate, press and hold the following keys:
DIAGNOSTIC TESTS
The following diagnostic tests have been incorporated into
the NuTone IM-4406 master station to assist in system
troubleshooting.
• Master station keyboard test
• Remote station control voltage test
• Display test
1. ▲ key
2. ▼ key
Example:
3. Memory 2 key
4. Release all keys
Display
Voltage at Microprocessor
2:3.0
2:1.9
2:0.1
3.0 volts
1.9 volts
.1 volts
The following applies to all diagnostic tests:
1. To access any of the diagnostic tests, the system must be
in the PROGRAM OFF mode.
2. Pressing the MEMORY SET key will end the current
In this mode, the hours represent the diagnostic test, and the
minutes indicate the voltage at the master station’s
microprocessor.
diagnostic test.
3. The current diagnostic test will end after one minute of
inactivity.
Voltage Window
Mode
End Call
Inside/Patio
Door Talk
Quiescent
Maximum
.4 volts
2.4 volts
3.6 volts
5.0 volts
Minimum
0 volts
1.6 volts
2.8 volts
4.3 volts
PLEASE NOTE: An incorrect voltage caused by
miswiring, shorted wiring or a defective remote
station may cause the radio and/or CD Player to
turn off/on, thus preventing the unit from
entering the diagnostic mode. Should this occur,
the master station’s control timer will stop the
on/off cycling after 30 seconds.
The control voltage windows for the three intercom modes
and quiescent mode are listed above. For proper intercom
operation, the control voltage produced when an intercom
key is pressed at a remote station should fall between the
voltage indicated.
NOTE: Pressing the END CALL, DOOR TALK, or
INSIDE/PATIO keys at the master station will not change the
voltage on the control line. If a remote station does not
produce a voltage within the above window for a specific
intercom function, check the following:
• Make sure all connections from the master station are
properly installed at the terminal board.
• Check IW-6 connections at the master station terminal
board and at each remote station.
• Confirm that the suspect remote station functions properly
by replacing it with a known good remote station.
Display Test – Displays all segments in the LCD display. To
activate, press and hold the following in this order:
1. ▲ key
2. ▼ key
Remote Station Keyboard Test – Verifies that all keys on
the master station are functioning properly. To activate: Press
and hold the following key in this order:
1. ▲ key
3. Memory 1 key
2. ▼ key
4. Release all keys
In this mode, the hours in the display represents the current
diagnostic test and the minutes indicate the current key being
pressed. The following will be displayed as the key is
pressed.
KEY
No key
Scan
DISPLAY
1:00
1:01
1:02
1:03
1:04
1:05
1:06
1:07
1:08
1:09
1:10
1:11
1:12
1:13
KEY
Memory 2
Memory 3
Memory 4
Memory 5
Memory 6
Play/Pause
RDM/RPT
Track
DISPLAY
1:14
1:15
1:16
1:17
1:18
1:19
1:20
1:21
1:22
1:23
1:24
1:25
1:26
▲
▼
3. Memory 3 key
4. Release all keys
Program Off
AM
RESETTING THE MICROPROCESSOR
FM
NOTE: Resetting the microprocessor will cause the radio
memory channels and clock time to be lost.
Tape
Aux
Track
Timer
Display
Should the system not operate properly, the internal
microprocessor may require resetting. To reset the
microprocessor, use the point of a pen to press the reset
button through the access hole behind the right lower door.
See “System Operating Control” section.
Inside/Patio
Door Talk
End Call
Memory 1
Stop
Time Set
Memory Set
15
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INSTALLER’S TROUBLESHOOTING GUIDE
TROUBLE
POSSIBLE CAUSE
No electrical power.
POSSIBLE REMEDY
No radio, no intercom.
(No Display).
Be certain 120VAC, 60Hz power has been provided to the primaries
of both 801T Transformers. No less than 16VAC should be
measured on the secondary of either Transformer.
Defective transformer.
Faulty Master Station.
Replace transformer.
No radio, intercom working.
(AM/FM indicator on.)
Isolate Master Station from installation by removing ribbon cables
from terminal board and wait one minute for timeout. With power on,
radio should be playing at Master. If no radio, Master is probably
faulty. If radio plays, reconnect ribbon cables.
Installation problem.
Antenna problem.
Check terminal board for shorted terminals or miswired cables.
Remove one 6-wire cable at a time to locate faulty line. When radio
comes on, check speaker connections and run continuity check of
speaker wiring.
Check for shorted antenna connection. Remove antenna connector
from tuner board and touch each pin with metallic object. If radio
plays, antenna is not functioning; be sure it is installed properly. In
weak signal areas, an outside antenna may be necessary. Also see
“Connecting the Radio Antenna”
Low or distorted radio
volume.
Incorrect volume setting.
Follow “Setting Program Audio Controls” instructions under
OPERATIONAL CHECKOUT.
Weak and distorted music,
chime and intercom audio.
Shorted or mis connected remote This unit contains a protection device which opens if the audio
speaker wiring.
amplifier detects an overload condition. If the music, chime and
intercom audio becomes weak and distorted, remove power from the
master station for 10 minutes; this will reset the protective device. If
the audio returns to normal, the remote speaker wiring and remote
speakers should be checked for bare, shorted and/or mis-connected
wires. The problem must be found and corrected before the master
station will properly function.
Be sure remote speaker set for MONITOR has its volume control set
Low or no intercom volume
from remote speaker in
MONITOR mode.
Improper operation.
between 1⁄
2
and max, and receiving speakers have volume controls
set between 1⁄
2
and max. Follow “Setting Intercom Volume”
instructions in OPERATIONAL CHECKOUT.
Program and Intercom Volume
Control adjustment.
Follow these instructions whenever the radio tends to overpower
transmissions from a remote speaker in the MONITOR mode. These
instructions will help you get the proper balance between the radio
and the monitored speaker.
1. Set system volume control to midpoint.
2. Set master to CD/TAPE or AUX position.
3. Adjust volume control for each remote station and speaker in
master station 3⁄
position.
4
4. Set master to AM or FM and tune to a strong AM or FM station.
5. Adjust program volume control for a desired listening level.
6. Increase Intercom volume control setting. Adjust clockwise to
desired monitor volume.
-Continued-
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INSTALLER’S TROUBLESHOOTING GUIDE
TROUBLE
POSSIBLE CAUSE
POSSIBLE REMEDY
System squeals when using Shorted wire on master or
Check for short between terminals or loose wire.
intercom.
remote terminal board.
Two or more Remote Stations on Make separate cable (IW-6) runs from each Remote Station to the
same wire run to Master.
Master.
Speakers in adjacent rooms
mounted on common wall, or
mounted back to back.
If speakers are mounted directly back to back, one speaker will have
to be relocated. If speakers are in a common wall, try placing
fiberglass insulation behind each speaker, or isolate the speakers
from the wall by placing rubber washers or weather stripping between
speaker and wall.
Improper wire used in
installation.
NuTone Model IW-6 6-conductor twisted pair cable must be used.
Hum in speakers.
Intercom wiring run too close to Keep intercom wiring as far as practical from household AC power
household AC power wiring. wiring. Do not run intercom wiring parallel to AC power wiring.
Shorted intercom power wiring or Check power connections to Master and connections to transformers.
power wiring shorted to ground.
Interference from household
electrical fixtures.
A dimmer may cause interference. For dimmer and fluorescent
lighting interference, use filters (G.E. 89G635 or equivalent;
NuTone Part No. 1559A-000).
Static.
Loose ground connection.
Check ground connection to Master and connection to earth ground
source.
Interference from household
electrical fixtures.
A dimmer may cause interference. For dimmer and fluorescent
lighting interference, use filters (G.E. 89G635 or equivalent;
NuTone Part No. 1559A-000).
Interference from household
electrical appliances.
Correct interference at the source: fish tank, heater, hand tool, coffee
pot, etc.
Remote Station not working. Wire installation.
Check terminal board for broken wire or loose connection. Check
continuity of wire.
Speaker.
Check continuity of speaker. Clean switch controls. Substitute with
speaker known to be in working order.
No door communication.
Wire installation.
Speaker.
Check continuity of wiring. Check connections at speaker and Master.
Check with a speaker known to be in working order.
Optional Electronic Chime
(Models IA-28 or IA-29) does
not operate or operates at a
low level.
Wire installation.
Be certain the chime is properly connected to the master station. Also,
be certain the front, side and rear buttons are properly connected to
the chime board.
Improper volume setting.
Adjust the volume of the chime module by turning the volume
potentiometer located on the chime module. NOTE: Chime Audio will
NOT be heard at stations selected to the OFF or MONITOR.
Electronic chime can't be
heard through the master
station or remote speakers.
Improper volume setting.
Improper volume setting.
Be certain the electronic chime is properly connected to the master
station's electronic chime input screw terminals.
Adjust the volume of the electronic chime by turning volume
potentiometer located on the chime.
-Continued-
17
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INSTALLER’S TROUBLESHOOTING GUIDE
TROUBLE
POSSIBLE CAUSE
POSSIBLE REMEDY
Cannot receive radio station Faulty antenna connection.
which is received by another
radio in home.
Antenna should be located in attic and connected to tuner in Master.
Check antenna connector to be sure it is connected to 2 pin
connector on master.
IU is displayed continuously, Shorted IW-6 wire going to
Set remote station status switches one at a time to the OFF position.
and the radio cycles on/off
continuously.
remote station. Defective remote If IU stops at certain station, that stations wire or remote station is
station.
defective.
Low intercom volume.
Intercom volume control
adjustment.
Increase intercom volume setting.
Volume controls on remote
Keep remote stations volume controls at 1⁄2 or higher for proper
intercom operation.
stations set below 1⁄2
.
Internal intercom volume control. Increase setting of internal intercom gain control.
When CD playback is started, Disc is badly scratched or
it stops immediately or stops warped.
Replace the disc.
during playback.
Disc is loaded with label facing
Install CD with label facing outward.
inward.
Improper data format (CD ROM) Replace with conventional music format CD.
Disc is dirty.
Clean disc if there are fingerprints or dirt on the disc. Wipe off with a
soft cotton cloth. Wipe the disc from the center to the outside edge.
Never use paint thinner, Benzene™ or conventional record cleaners.
With certain discs a loud pop Disc has bad scratch or is
Replace the disc.
is produced or play stops.
warped.
Disc is extremely dirty.
Clean disc if there are fingerprints or dirt on the disc. Wipe off with a
soft cotton cloth. Wipe the disc from the center to the outside edge.
Never use paint thinner, Benzene™ or conventional record cleaners.
18
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Two Year Limited Warranty
WARRANTY OWNER: NuTone warrants to the original consumer purchaser of its products that such products will be free from defects in materials or workmanship for a period
of two (2) years from the date of original purchase. THERE ARE NO OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
During this two year period, NuTone will, at its option, repair or replace, without charge, any product or part which is found to be defective under normal use and service.
THIS WARRANTY DOES NOT EXTEND TO FLUORESCENT LAMP STARTERS OR TUBES, FILTERS, DUCT, ROOF CAPS, WALL CAPS AND OTHER ACCESSORIES
FOR DUCTING. This warranty does not cover (a) normal maintenance and service or (b) any products or parts which have been subject to misuse, negligence, accident,
improper maintenance or repair (other than by NuTone), faulty installation or installation contrary to recommended installation instructions.
The duration of any implied warranty is limited to the one year period as specified for the express warranty. Some states do not allow limitation on how long an implied warranty
lasts, so the above limitation may not apply to you.
NUTONE’S OBLIGATION TO REPAIR OR REPLACE, AT NUTONE’S OPTION, SHALL BE THE PURCHASER’S SOLE AND EXCLUSIVE REMEDY UNDER THIS
WARRANTY. NUTONE SHALL NOT BE LIABLE FOR INCIDENTAL, CONSEQUENTIAL OR SPECIAL DAMAGES ARISING OUT OF OR IN CONNECTION WITH
PRODUCT USE OR PERFORMANCE. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may
not apply to you. This warranty gives you specific legal rights, and you may also have other rights, which vary from state to state. This warranty supersedes all prior warranties.
WARRANTY SERVICE: To qualify for warranty service, you must (a) notify NuTone at the address stated below or telephone 1/800-543-8687, (b) give the model
number and part identification and (c) describe the nature of any defect in the product or part. At the time of requesting warranty service, you must present
evidence of the original purchase date.
Date of Installation
Builder or Installer
Model No. and Product Description
IF YOU NEED ASSISTANCE OR SERVICE:
For the location of your nearest NuTone Independent Authorized Service Center:
Residents of the contiguous United States Dial Free 1-800-543-8687
Please be prepared to provide:
Product model number • Date and Proof of purchase • The nature of the difficulty
Residents of Alaska or Hawaii should write to: NuTone Inc. Attn: Department of National Field Service, 4820 Red Bank Road, Cincinnati Ohio 45227-1599.
Residents of Canada should write to: Broan-NuTone Canada, 1140 Tristar Drive, Mississauga, Ontario, Canada L5T 1H9.
Rev. 03/2001
4820 Red Bank Road, Cincinnati, Ohio 45227
Printed in China, Rev. 10/01, Part No. 86525
Product specifications subject to change without notice.
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