NuTone IMA4406 Connecting Power Transformers, Mounting the Transformer Cover

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INSTALLATION (Continued)

CONNECTING THE

POWER TRANSFORMERS

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!

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

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!

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.

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.

FIGURE 14

FIGURE 15

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Contents Model IMA-4406 Series Master Station AM/FM RADIO/CD Player Intercom SystemTable of Contents InstallationRemote Station Wiring Contents of CartonPrecautions and Guidelines Wiring SpecificationsConnecting Volume Control Wiring Connecting the Remote WiringMounting the Terminal Board Connecting Door Speaker Wiring Mounting the Master Station Mounting the Transformer Cover Connecting Power TransformersConnecting the Master Station to the Terminal Board Connecting the Optional Chime Module Connecting the Radio AntennaConnecting Optional Electronic Chime Connecting Power to the Optional CP-95 Cassette Player Connecting Optional AccessoriesSecuring the Master Panel Mounting and Connecting Optional Door Release PushbuttonConnecting the Memory Back UP Battery Powering UP the SystemSystem Operating Controls Operational CheckoutDigital Clock Setting Program Audio ControlsSystem Checkout Setting the External Audio Source Level Setting Intercom VolumeSetting Internal Intercom Volume Control Setting the Beep Tone LevelResetting the Microprocessor Diagnostic TestsINSTALLER’S Troubleshooting Guide Make separate cable IW-6 runs from each Remote Station to Cannot receive radio station Faulty antenna connection Page Product specifications subject to change without notice