Nutone Im-440 series User manual

INSTALLATION

INSTRUCTIONS

AM/FM

RADIO/CD PLAYER

INTERCOM SYSTEM

MODEL: IM-4406 SERIES MASTER STATION

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.

IM-4406 SERIES REPRESENTATIVE WIRING ILLUSTRATION

INSIDE

ANTENNA

NUTONE CHIME

TRANSFORMER

PUSHBUTTON

18/2 (NUTONE S-143)

OPTIONAL

ELECTRONIC

DOOR CHIME

200´ MAX

NUTONE

IW-2

14 GA

GROUND

SHIELDED

AUDIO

CABLES

DOOR

SPEAKER

5˝ PATIO

SPEAKER

W/CONTROLS

NUTONE

IW-2

NUTONE

IW-6

300´ MAX

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.

IA-6C

RECEPTACLE

IA-6

PLUG

OPTIONAL WIRING

FOR DOOR

RELEASE DR-1/DR-2

DOOR RELEASE

100´ MAX S-143

301T

TRANSFORMER

120V 60HZ

(CLASS 1)

(OBSERVE

LOCAL CODE)

INSIDE

SPEAKERS

W/CONTROLS

NUTONE IW-6

OUTSIDE

REMOTE

CONTROL

OUTSIDE

SPEAKER

INSIDE

REMOTE

CONTROL

INSIDE

SPEAKER

NUTONE

IW-6

(2) 801T

TRANSFORMERS

SECONDARY:

18V, 72VA

EARTH

GROUND

ATTIC

14 GA

300´ MAX

NUTONE IW-2

PUSHBUTTON FOR

OPTIONAL CHIME

MODULE

14/2 WITH GROUND

(OBSERVE LOCAL CODES)

120V 60HZ (CLASS 1)

IW-6

IW-2

DESKTOP

FRAME WITH 5˝

REMOTE

IM-4406

MASTER STATION

Use this diagram for reference only.

See IR-105 Rough-in frame instructions

for detailed wiring.

120V 60HZ

(CLASS 1)

(OBSERVE

LOCAL CODE)

IW-2

120V. 60HZ (CLASS 1)

(OBSERVE LOCAL CODE)

MUSIC

DISTRIBUTION

VOLUME

CONTROL

IW-2

MUSIC

DISTRIBUTION

SPEAKER

OPTIONAL

MUSIC

SOURCE

INSTALLATION

TABLE OF CONTENTS

INSTALLATION PAGE

Contents of Carton . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Precautions and Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Wiring Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Remote Station Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Maximum Number of Remote Stations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Mounting the Terminal Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Connecting the Remote Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Connecting Volume Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Connecting Door Speaker Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Preparing Master Station Panel for Optional Door Release Pushbutton . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Mounting the Optional Chime Module in the Master Station Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5, 6

Mounting the Master Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Connecting the Power Transformers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Mounting the Transformer Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Connecting the Master Station to the Terminal Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Connecting the Radio Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Connecting the Optional Chime Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Connecting Optional Electronic Chime . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Connecting Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Connecting Power to the Optional CP-95 Cassette Player . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Mounting and Connecting Optional Door Release Pushbutton . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Connecting the Memory Back Up Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Securing the Master Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Powering Up the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

OPERATIONAL CHECKOUT

System Operating Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Digital Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Setting Program Audio Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13, 14

Setting Intercom Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Setting Internal Intercom Volume Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Setting the BEEP Tone Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Setting the External Audio Source Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Diagnostic Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Resetting the Microprocessor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

INSTALLER’S TROUBLESHOOTNG GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16, 17, 18

WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

CONTENTS OF CARTON

Check (✓) for the following IM-4406 carton contents.

❏IM-4406 master station

❏Terminal board

❏Transformer cover

❏Hardware bag assembly containing:

2 - shoulder screws

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

❏Product Registration Warranty Card

NOTE TO INSTALLER: Do not discard these

installation instructions. Please transfer all

installation instructions, warranty registration

and homeowner’s manual to the homeowner.

PRECAUTIONS AND GUIDELINES

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!

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.

Use NuTone IW-2, 22 ga. twisted pair for connecting:

•Door speakers to master

•Remote controls to speakers

•Speaker volume control (IC901) to master

•Speaker volume control (IC901) to speakers

•Electronic chime audio output to master

•Pushbutton to chime module

Use NuTone S-143, 18 ga. twisted pair for connecting:

•Pushbutton to electronic chime

•Electronic chime to chime transformer

Use Nº14/2 power cable with ground, Class 1 UL Listed

(Observe local codes) for connecting:

•Transformers to 120v AC

Use shielded audio cable for connecting external audio

sources to the master station.

REMOTE STATION WIRING

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.

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.

If more than 9 stations are required, use the optional

Model Nº IA-440 expansion kit. This will allow an additional

6 connections at the master.

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.

INSTALLATION

NOTE: NEVER connect more than one remote

station to a set of screw terminals.

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!

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

MOUNTING THE TERMINAL BOARD

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.

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.

CONNECTING THE REMOTE WIRING

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.

2. Refer to Figure 2. Connect the IW-6 cable from each

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.

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

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.

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.

WARNING! NEVER EXCEED A TOTAL OF 15 NUTONE

25 OHM SPEAKERS ON THIS SYSTEM.

WARNING! NEVER USE STANDARD 8 OHM STEREO

SPEAKERS ON THIS SYSTEM. USE ONLY NUTONE

SPECIFIED SPEAKERS ON THIS MASTER.

IMPORTANT

DO NOT APPLY POWER TO THE SYSTEM UNTIL ALL

CONNECTIONS ARE COMPLETE AT THE MASTER

AND REMOTE STATIONS.

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!

INSTALLATION (Continued)

▲

IMPORTANT – WHEN NUTONE MODEL IW-6R

WIRING IS USED:

CONNECT TO THE

SCREW TERMINALS

ON THE TERMINAL

BOARD MARKED:

1ORN

2BLK

3BLK/WHITE

4ORN/WHITE

5RED

6RED/WHITE

BLUE STRIPE

FIGURE 3

FIGURE 1

FIGURE 2

MOUNTING HOLES

IW-6

RED

RED/WHT

BLK

BLK/WHT

ORN

ORN/WHT

CONNECTING VOLUME CONTROL WIRING

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.

Refer to the installation instructions packed with the speaker

volume control for wiring this unit.

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.

PREPARING MASTER STATION PANEL FOR

OPTIONAL DOOR RELEASE PUSHBUTTON

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.

2. Cut the 4 retainer webs from the pushbutton cover.

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

1. Position the master station panel face down on a soft cloth.

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.

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.

INSTALLATION (Continued)

NEVER USE 8 OHM STEREO SPEAKERS

WITH THIS SYSTEM!

FIGURE 5

FIGURE 6

FIGURE 4

FIGURE 7

SNAP IN PLACE

RED

WIRE

IA-29 ONLY

ORN

ORN/WHT

DOOR

SPEAKER

Model IA-29 Only

1. Refer to Figure 8. Locate the chime selector switch

mounting bracket in the master unit.

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).

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.

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.

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.

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.

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.

INSTALLATION (Continued)

FIGURE 8

FIGURE 10A FIGURE 10B

FIGURE 11 FIGURE 12

FIGURE 13

BACK HOLE – FOR

FLUSH MOUNTED

ROUGH-INS

FRONT HOLE –

FOR RECESSED

ROUGH-IN

FIGURE 9

CONNECTING THE

POWER TRANSFORMERS

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.

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.

INSTALLATION (Continued)

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!

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!

▲

FIGURE 14

FIGURE 15

MOUNTING THE TRANSFORMER COVER

IMPORTANT: The transformer cover must be installed

for proper operation of the intercom.

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.

3. Fasten cover with two (2) screws previously removed.

INSTALLATION (Continued)

FIGURE 16

FIGURE 17

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.

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

CN101

CN116

CN104

CN102

BLACK RIBBON

CABLE WITH

10 PIN PLUG

BROWN CABLE

WITH 12 PIN

PLUG

MULTI-COLOR

RIBBON CABLE

WITH 9 PIN PLUG

GRAY CABLE

WITH 11 PIN

PLUG

CN111

USED WITH

OPTIONAL IA-440

EXPANSION

MODULE

MULTI-COLOR

RIBBON CABLE

WITH 14 PIN

PLUG

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

CONNECTING OPTIONAL ACCESSORIES

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.

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.

•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).

•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.

INSTALLATION (Continued)

FIGURE 22

FIGURE 23

IMPORTANT

Be sure the power to the transformers in the IR-105 rough-in

is OFF before connecting the CP-95 power supply leads!!

▲

CONNECTING POWER TO THE OPTIONAL

CP-95 CASSETTE PLAYER

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.

LINE OUT

AUX INPUT

TAPE INPUT

CONNECT CP-95

POWER LEADS

SECURING THE MASTER PANEL

1. Refer to Figure 26. Inspect all wiring connections to make

sure they are complete and correct.

2. Make sure all antenna connections are secure.

3. Dress all remote station wires flat against the terminal

board.

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.

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.

MOUNTING AND CONNECTING

OPTIONAL DOOR RELEASE PUSHBUTTON

You have previously prepared the master station for the

optional release pushbutton.

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.

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.

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.

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

FIGURE 25

INSTALLATION (Continued)

2 PIN PLUG

2 PIN

CONNECTOR

FIGURE 26

OPERATIONAL CHECKOUT

SCAN: Activates scan tuning during AM/FM operation.

▲▼ UP/DOWN TUNING: Provides manual tuning of the AM/FM radio.

MEMORY 1-6 KEYS: Provides direct access to stored radio

frequencies.

TRACK : Returns to the beginning of the current track and/or previous

tracks.

TRACK : Advances the CD Player to the beginning of the next track.

RDM/RPT: (Random/Repeat) Set the CD play mode to: REPEAT ONE,

REPEAT ALL or RANDOM PLAY.

PLAY/PAUSE: Activates the operation of the CD Player. Pressing the

key during play operation will pause the CD Player.

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.

MEMORY SET: Stores desired radio frequencies into a selected

memory location.

CLOSE: Press here to close CD Player door.

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.

SYSTEM VOLUME: Adjusts the program audio level throughout the

system.

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.

MICROPROCESSOR RESET: Initiates a reset of the microprocessor.

NOTE: A reset of the microprocessor will erase the system’s memory.

DISPLAY: Sets the LCD display mode: CLOCK, RADIO FREQUENCY,

TRACK NUMBER or TIME PLAYED.

INTERCOM VOLUME: Adjusts intercom audio level throughout the

system.

MASTER STATION STATUS SWITCHES: Sets the master station in

one of the following modes: RADIO/INTERCOM, INTERCOM ONLY,

OFF or MONITOR.

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.

DOOR RELEASE KNOCKOUT: Mounting hole for optional door

release pushbutton.

END CALL: Ends intercom communication and returns system to audio

source.

DOOR TALK: Initiates intercom communication to the door speakers.

INSIDE/PATIO: Initiates intercom communication to remote stations.

TIMER: Enables or disables the radio timer. The indicator light will

illuminate next to the Timer key when the Radio Timer is activated.

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.

ELECTRONIC CHIME TUNE SELECTION: Selects the tune of the

optional NuTone IA-29 Chime Module.

PROGRAM OFF: Turns off the selected program audio source. The

program Off key does not affect the intercom or chime operation.

MASTER VOLUME: Adjusts the volume at the master station.

▲

SYSTEM OPERATING CONTROLS

12345678 9

1617

20 10

CAUTION

Never touch the lens of the CD player or damage

will result!

DIGITAL CLOCK

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.

1. Press the TIME SET key one time.

The ‘Hours’ display will begin

flashing, and the words ‘Set Time’

will display.

2. Within 5 seconds, press the ▲or ▼key until the correct

Hour and AM/PM are displayed.

3. Within the next 5 seconds, press the TIME SET key

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.

SYSTEM CHECKOUT

Set the following control settings and perform the indicated

tests.

1. Set all STATION STATUS SWITCHES to the RADIO

INTERCOM position.

2. Set the MASTER VOLUME control to 2⁄3position.

3. Set each remote station VOLUME control to 2⁄3position.

4. Set the SYSTEM VOLUME control to 1⁄3position.

5. Set the INTERCOM VOLUME control to 2⁄3position.

6. Set the BASS and TREBLE control to 1⁄2position.

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.

8. Snap a CD disc onto the spindle of the CD player.

SET TIME

▲

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.

1. Press the INSIDE/PATIO key to initiate a call. Radio

audio will mute.

2. Release the INSIDE/PATIO key to hear the reply.

3. Press the END CALL key. Intercom communication will

end and radio audio will return to all stations in the system.

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

speaker(s) will be heard at all stations in the system.

6. Press the END CALL key. Door communications will

end and radio audio will return to all stations in the

system.

7. Press and hold the END CALL key for 2 seconds at any

remote station. The radio will turn off.

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.

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.

11. Repeat procedure at all remote stations.

SETTING PROGRAM AUDIO CONTROLS

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.

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.

3. Turn the MASTER VOLUME control to maximum volume.

4. Turn the SYSTEM VOLUME control on the master station

to approximately 1⁄3volume.

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.)

OPERATIONAL CHECKOUT (Continued)

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.

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

recommended that the MASTER VOLUME and remote

stations’ VOLUME controls be set at 2⁄3volume or higher.

SETTING INTERCOM VOLUME

1. Initiate an intercom call from the master by pressing the

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 1⁄2to 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.

SETTING INTERNAL INTERCOM VOLUME

CONTROL

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.

2. To increase the intercom gain, turn the internal control

clockwise.

OPERATIONAL CHECKOUT (Continued)

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.

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.

FIGURE 27

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.

2. To increase the BEEP level, turn the control clockwise.

FIGURE 28

FIGURE 29

BEEP TONE

ROUGH-IN

BOTTOM OF

MASTER

AUX TAPE

LEVEL LEVEL

KEY DISPLAY KEY DISPLAY

No key 1:00 Memory 2 1:14

Scan 1:01 Memory 3 1:15

▲1:02 Memory 4 1:16

▼1:03 Memory 5 1:17

Program Off 1:04 Memory 6 1:18

AM 1:05 Play/Pause 1:19

FM 1:06 RDM/RPT 1:20

Tape 1:07 Track 1:21

Aux 1:08 Track 1:22

Timer 1:09 Display 1:23

Inside/Patio 1:10 Stop 1:24

Door Talk 1:11 Time Set 1:25

End Call 1:12 Memory Set 1:26

Memory 1 1:13

OPERATIONAL CHECKOUT (Continued)

▲

Display Voltage at Microprocessor

2:3.0 3.0 volts

2:1.9 1.9 volts

2:0.1 .1 volts

In this mode, the hours represent the diagnostic test, and the

minutes indicate the voltage at the master station’s

microprocessor.

Voltage Window

Mode Maximum Minimum

End Call .4 volts 0 volts

Inside/Patio 2.4 volts 1.6 volts

Door Talk 3.6 volts 2.8 volts

Quiescent 5.0 volts 4.3 volts

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 3. Memory 3 key

2. ▼key 4. Release all keys

RESETTING THE MICROPROCESSOR

NOTE: Resetting the microprocessor will cause the radio

memory channels and clock time to be lost.

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.

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

The following applies to all diagnostic tests:

1. To access any of the diagnostic tests, the system must be

in the PROGRAM OFF mode.

Pressing the MEMORY SET key will end the current

diagnostic test.

3. The current diagnostic test will end after one minute of

inactivity.

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.

Remote Station Control Voltage Test – Displays the

voltage at the master’s microprocessor control line. To

activate, press and hold the following keys:

1. ▲key 3. Memory 2 key

2. ▼key 4. Release all keys

Example:

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.

TROUBLE

No radio, no intercom.

(No Display).

No radio, intercom working.

(AM/FM indicator on.)

Low or distorted radio

volume.

Weak and distorted music,

chime and intercom audio.

No electrical power.

Defective transformer.

Faulty Master Station.

Installation problem.

Antenna problem.

Incorrect volume setting.

Shorted or mis connected remote

speaker wiring.

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.

Replace transformer.

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.

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”

Follow “Setting Program Audio Controls” instructions under

OPERATIONAL CHECKOUT.

This unit contains a protection device which opens if the audio

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.

POSSIBLE CAUSE POSSIBLE REMEDY

INSTALLER’S TROUBLESHOOTING GUIDE

Low or no intercom volume

from remote speaker in

MONITOR mode.

Improper operation.

Program and Intercom Volume

Control adjustment.

Be sure remote speaker set for MONITOR has its volume control set

between 1⁄2and max, and receiving speakers have volume controls

set between 1⁄2and max. Follow “Setting Intercom Volume”

instructions in OPERATIONAL CHECKOUT.

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 3⁄4position.

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-

Optional Electronic Chime

(Models IA-28 or IA-29) does

not operate or operates at a

low level.

Improper volume setting.

TROUBLE

Hum in speakers.

Remote Station not working.

No door communication.

Intercom wiring run too close to

household AC power wiring.

Shorted intercom power wiring or

power wiring shorted to ground.

Interference from household

electrical fixtures.

Wire installation.

Speaker.

Wire installation.

Speaker.

Wire installation.

Improper volume setting.

Keep intercom wiring as far as practical from household AC power

wiring. Do not run intercom wiring parallel to AC power wiring.

Check power connections to Master and connections to transformers.

A dimmer may cause interference. For dimmer and fluorescent

lighting interference, use filters (G.E. 89G635 or equivalent;

NuTone Part No. 1559A-000).

Check terminal board for broken wire or loose connection. Check

continuity of wire.

Check continuity of speaker. Clean switch controls. Substitute with

speaker known to be in working order.

Check continuity of wiring. Check connections at speaker and Master.

Check with a speaker known to be in working order.

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.

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.

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.

POSSIBLE CAUSE POSSIBLE REMEDY

INSTALLER’S TROUBLESHOOTING GUIDE

Electronic chime can't be

heard through the master

station or remote speakers.

Static. Loose ground connection.

Interference from household

electrical fixtures.

Interference from household

electrical appliances.

Check ground connection to Master and connection to earth ground

source.

A dimmer may cause interference. For dimmer and fluorescent

lighting interference, use filters (G.E. 89G635 or equivalent;

NuTone Part No. 1559A-000).

Correct interference at the source: fish tank, heater, hand tool, coffee

pot, etc.

System squeals when using

intercom.

Shorted wire on master or

remote terminal board.

Two or more Remote Stations on

same wire run to Master.

Speakers in adjacent rooms

mounted on common wall, or

mounted back to back.

Improper wire used in

installation.

Check for short between terminals or loose wire.

Make separate cable (IW-6) runs from each Remote Station to the

Master.

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.

NuTone Model IW-6 6-conductor twisted pair cable must be used.

Improper volume setting.

-Continued-

When CD playback is started,

it stops immediately or stops

during playback.

Disc is badly scratched or

warped.

Replace the disc.

Install CD with label facing outward.Disc is loaded with label facing

inward.

Replace with conventional music format CD.Improper data format (CD ROM)

TROUBLE POSSIBLE CAUSE POSSIBLE REMEDY

INSTALLER’S TROUBLESHOOTING GUIDE

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.

Disc is dirty.

With certain discs a loud pop

is produced or play stops.

Disc has bad scratch or is

warped.

Replace the disc.

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.

Cannot receive radio station

which is received by another

radio in home.

Faulty antenna connection. 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.

Shorted IW-6 wire going to

remote station. Defective remote

station.

Set remote station status switches one at a time to the OFF position.

If IU stops at certain station, that stations wire or remote station is

defective.

Low intercom volume. Intercom volume control

adjustment.

Increase intercom volume setting.

Volume controls on remote

stations set below 1⁄2.

Keep remote stations volume controls at 1⁄2or higher for proper

intercom operation.

Internal intercom volume control. Increase setting of internal intercom gain control.

IU is displayed continuously,

and the radio cycles on/off

continuously.

4820 Red Bank Road, Cincinnati, Ohio 45227

Printed in China, Rev. 10/01, Part No. 86525Product specifications subject to change without notice.

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.