NuTone IM-440 Series Make separate cable IW-6 runs from each Remote Station to

Page 17

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

If speakers are mounted directly back to back, one speaker will have

 

mounted on common wall, or

to be relocated. If speakers are in a common wall, try placing

 

mounted back to back.

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

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

 

installation.

 

 

 

 

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

A dimmer may cause interference. For dimmer and fluorescent

 

electrical fixtures.

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

A dimmer may cause interference. For dimmer and fluorescent

 

electrical fixtures.

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

 

 

NuTone Part No. 1559A-000).

 

 

 

 

Interference from household

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

 

electrical appliances.

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.

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

 

 

 

 

Speaker.

Check with a speaker known to be in working order.

 

 

 

Optional Electronic Chime

Wire installation.

Be certain the chime is properly connected to the master station. Also,

(Models IA-28 or IA-29) does

 

be certain the front, side and rear buttons are properly connected to

not operate or operates at a

 

the chime board.

low level.

 

 

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

Improper volume setting.

Be certain the electronic chime is properly connected to the master

heard through the master

 

station's electronic chime input screw terminals.

station or remote speakers.

 

 

Improper volume setting.

Adjust the volume of the electronic chime by turning volume

 

 

 

potentiometer located on the chime.

 

 

 

 

 

-Continued-

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Contents Model IM-4406 Series Master Station AM/FM RADIO/CD Player Intercom SystemTable of Contents InstallationPrecautions and Guidelines Contents of CartonWiring Specifications Remote Station WiringMounting the Terminal Board Connecting the Remote WiringNever USE 8 OHM Stereo Speakers With this System Connecting Volume Control WiringConnecting Door Speaker Wiring Mounting the Master Station Mounting the Transformer Cover Connecting Power TransformersConnecting the Master Station to the Terminal Board Connecting Optional Electronic Chime Connecting the Radio AntennaConnecting the Optional Chime Module Connecting Power to the Optional CP-95 Cassette Player Connecting Optional AccessoriesConnecting the Memory Back UP Battery Mounting and Connecting Optional Door Release PushbuttonPowering UP the System Securing the Master PanelMaster Station Status Switches Sets the master station System Checkout Setting Program Audio ControlsDigital Clock Setting Internal Intercom Volume Control Setting Intercom VolumeSetting the Beep Tone Level Setting the External Audio Source LevelKEY Display Diagnostic TestsResetting the Microprocessor Trouble Possible Cause Possible Remedy INSTALLER’S Troubleshooting GuideMake separate cable IW-6 runs from each Remote Station to Cannot receive radio station Faulty antenna connection Page Two Year Limited Warranty

IM-440 Series specifications

The NuTone IM-440 Series is a highly acclaimed intercom system designed to enhance communication and convenience in both residential and commercial environments. Renowned for its utility and efficiency, this system combines advanced technology with user-friendly features, making it a popular choice for those looking to upgrade their intercom systems.

One of the standout features of the NuTone IM-440 Series is its versatile communication capabilities. The system supports both intercom communication and radio broadcasting, allowing users to not only communicate with different rooms but also listen to music or news throughout the premises. This dual functionality positions the IM-440 as an all-in-one solution for audio entertainment and inter-room communication.

The IM-440 series employs robust technology to ensure clear audio quality. Utilizing advanced circuitry, the system minimizes interference and enhances sound clarity, making conversations more intelligible and enjoyable. This technology is particularly useful in larger homes or commercial spaces where distance can affect sound quality.

Installation is made easy thanks to the IM-440 series' design, which supports a variety of mounting options and is compatible with numerous room types. The user interface is intuitive, featuring a simple-to-use control panel that allows for straightforward navigation and operation. This focus on user experience is evident in the attention to detail in the design, ensuring that even those who are not tech-savvy can operate the system with ease.

Another significant characteristic of the NuTone IM-440 Series is its scalability. The system can be easily expanded to accommodate additional rooms and features, allowing users to customize their intercom setup according to their specific needs. This makes it a future-proof investment that can adapt to changes in living or working environments.

Durability and reliability are also hallmarks of the IM-440 series. Built to withstand the rigors of daily use, the system features high-quality materials that ensure longevity. Additionally, the system's components are engineered to perform consistently over time, providing users with peace of mind that their communication system will be operational when needed.

In summary, the NuTone IM-440 Series stands out for its combination of advanced audio technology, user-friendly design, and scalability. Whether for communication or entertainment, this intercom system offers a compelling solution for those seeking to enhance their indoor audio experience. With its array of features and reliability, the IM-440 Series remains a top choice in intercom systems.
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