INSTALLATION & OPERATING INSTRUCTIONS READ & SAVE THESE INSTRUCTIONS!
Central Amplifier
MODEL IMA-516
INTERCOM SYSTEM FOR HOME OR OFFICE
A typical system will include inside intercom speakers and door speaker(s) if door answering is required. A MAXIMUM OF TEN
(10) INSIDE REMOTE SPEAKER STATIONS AND TWO (2) DOOR SPEAKERS. Intercom speakers designed for outside installation are available. The Amplifier has provisions for connecting optional input equipment; i.e.: radio/music, electronic chime.
RADIO/MUSIC SOURCE – A separate NuTone Radio-Intercom System.
ELECTRONIC CHIME – A NuTone Electronic or Musical Chime may be connected to the amplifier to provide chime tones in the intercom speakers.
NOTE: Models IA-28 or IA-29 chime modules cannot be used with the IMA-516.
SPEAKER REFERENCE CHART
(Use applicable rough-in and specified wire with all models)
MODEL NUMBER |
DESCRIPTION |
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Inside Intercom Speakers |
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ISB-53 series |
Speaker with controls. Recess mounts with Model |
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IR-3 Rough-In or may be surface-mounted with |
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Model IA-15. |
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IS-75 |
5" Paging Speaker - Roto-groove. Recess mounts with |
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Model IR-75 Rough-In. |
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IS-76 |
8" Paging Speaker - round. Recess mounts with Model |
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IR-70 Rough-In. |
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ISA-78 Series |
8" Paging Speaker - rectangular. Recess mounts with |
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Model IR-80 Rough-In. |
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IC-501 |
Regulates volume in Inside Paging Speakers IS-75, |
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IS-76 or ISA-78. |
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Outside Intercom Speakers |
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ISB-53LW |
Speaker with controls - surface mounted. |
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ISA-77 |
8" Paging Speaker - surface-mounted. |
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IS-79 |
8" Paging Speaker - recessed. Recess mounts with |
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Model IR-9 Rough-In. |
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Door Speakers |
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IS-67 series |
Door Speaker with lighted pushbutton - molded. |
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Recess mounts with IR-6 Rough-In. |
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IS-69 series |
Door Speaker with lighted pushbutton - Classic Cast |
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Metal. Recess mounts with IR-6 Rough-In. |
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ISA-63 |
Door Speaker - no pushbutton. |
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Molded - surface-mounted. |
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ISB-64 |
Door Speaker with unlighted pushbutton. |
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Molded - surface-mounted. |
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IA-70 |
Surface-mounting frame for recessed door speakers. |
INSTALLATION DON'TS
1.Don't locate inside speaker stations on indoor exterior walls.
2.Don't place more than one speaker station in a room.
3.Don't locate two speaker stations in a common wall between rooms; rooms that share a common wall should not have the speaker stations on that wall.
4.Don't place a speaker station so it is facing another station, even if the other station is across a hallway in another room.
5.Don't locate speaker stations where doors or furniture will interfere with the operation of the speaker.
6.Don't locate the amplifier in an area where temperatures will exceed 120°F or fall below 32°F.
WIRING INFORMATION
CAUTION: This system is designed to be used with NuTone wire/cable. No other wire should be used. use of wire other than NuTone specified will cause improper operation.
*NuTone Model IW-6 – Use for connection between Amplifier and intercom speakers. IW-6 is a 3-twisted-pair cable (3 pairs of 22 gauge wire with variable twists; color-coded).
*NuTone Model IW-2 – Use for connections specified in diagrams. IW-2 is one twisted-pair cable (22 gauge).
IMPORTANT
1.Observe local code requirements.
2.Route all system wiring as far as possible (at least 12") from household power wiring, lamp dimmers, furnace controls, etc.
3.Avoid stapling cables.
4.Be sure amplifier is properly grounded to an earth ground source.
IMPORTANT: NuTone cannot be responsible for improper radiointercom operation that results from interference generated by light dimmers, fluorescent lighting fixtures, and similar electrical products. Such interference must be corrected at the source. As an aid to help reduce this interference, all remote speaker wires and cables must be placed at least 12 inches from any A.C. power wiring.
INSTALLING THE AMPLIFIER
1.Determine exact location for all components. Check plans against the “Installation Don'ts.”
2.Run designated wire to component locations, including power wiring to transformer and low-voltage wiring between transformer and amplifier.
3.Make wire connections and mount components. Note that some components (especially speakers) may require a rough-in frame.
NOTE: After the first two speaker stations are wired, supply power to the system and test for proper operation. Wire and test the remaining speaker stations one at a time.
NOTE: If UL listed wire is required, use IW-6-UL and IW-2-UL.
MOUNTING THE TRANSFORMER
CAUTION: Do not install the transformer in attic, crawl space, or on lighting fixture. High ambient temperature will cause transformer to cut out.
IMPORTANT: If replacing an IM-516 with IMA-516, replace transformer with Model 301-T transformer
1.In keeping with local electrical code, mount 301-T transformer in one of the following locations: fuse box, circuit breaker box, or utility box in an accessible area.
2.Do not cover transformer with insulation. Do not use transformer for other appliances.
MOUNTING THE AMPLIFIER
The amplifier is surface-mounted to a finished wall, or mounted on a single-gang outlet box. It must be located in an area that is accessible for making adjustments and for servicing if required. Two mounting holes are provided in the amplifier base plate.
MOUNTING
HOLES
DECREASE |
DECREASE |
INCREASE |
INCREASE |
INTERCOM |
RADIO |
VOLUME |
VOLUME |
CONTROL |
CONTROL |
INPUT |
DOOR |
ORN /WHT |
BLK |
INPUT |
DOOR |
ORN |
BLK /WHT |
CHIME |
AC |
CHIME |
AC |
OUTPUT |
OUTPUT |
HI |
LO |
RED |
RED WHT |
CONNECTION TO RADIO-INTERCOM
This is the primary application. By connecting a non-intercom IMA-516 speaker system to a NuTone Radio-Intercom System (2000, 3000, 3300, 4000 or 5000 model series), radio/music can be provided to selected locations where intercom is not needed. Example: A doctor's office may need radio-intercom in the office areas and radio/music only in the waiting-reception area.
IMA-516 AMPLIFIER (WITH COVER REMOVED)
2
INTERCOM SYSTEM FOR HOME OR OFFICE
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MAXIMUM OF 10 REMOTE SPEAKER STATIONS AND 2 DOOR SPEAKERS |
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ISB-53 |
ISB-53 |
ISB-53 |
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SPEAKER/WIRE |
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SPECIFICATIONS |
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MAXIMUM OF 3 SPEAKERS MAY BE CONNECTED ON |
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SAME WIRE RUN. MAXIMUM CABLE LENGTHS. |
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1 SPEAKER |
500 FEET |
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2 SPEAKERS |
250 FEET |
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3 SPEAKERS |
150 FEET |
BLK / WHT |
BLK |
ORN/ WHT |
DO NOT EXCEED 4000 FEET OF IW-6 PER SYSTEM |
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ORN |
RED |
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RED / W |
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SPECIFICATIONS FOR LOW-LEVEL OUTPUT CONNECTION.
(1)Minimum 5mv for 50mv output (least useable output).
(2)50mv for 4 watts (full output).
(3)Maximum input voltage: 1 volt.
(4)Input impedence: 100K ohms.
LOW-LEVEL RADIO/MUSIC OUTPUT
(1)NuTone Radio-Intercom 2000, 3000, 3300, 4000 or 5000 model series. Lowlevel music output provided - black and blue wires connect with IW-2 (max.
10 ft.) to black and blue input wires on IMA-516 Amplifier.
(2)Speaker connected to an existing AM/FM radio music source. Use IW-2 (max. 10 ft.) to connect the IMA-516 low-level input leads to the speaker terminals.
NUTONE IW-2 (MAX. 200 FT)
120vAC, 60Hz HOUSE POWER
OBSERVE LOCAL CODE
NUTONE
ELECTRONIC CHIME
SEE CHIME
INSTALLATION
INSTRUCTIONS
18/2 |
18/2 |
MODEL 301T |
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(NUTONE |
(NUTONE |
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TRANSFORMER |
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S-143) |
S-143) |
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TO PUSH |
TO CHIME |
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BUTTON(S) |
TRANSFORMER |
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NUTONE IW-2
LOW-LEVEL
INPUT WIRES
BLUE & BLACK
DECREASE |
DECREASE |
INCREASE |
INCREASE |
INTERCOM VOLUME |
RADIO VOLUME |
CONTROL |
CONTROL |
INPUT |
DOOR |
ORN /WHT |
BLK |
INPUT |
DOOR |
ORN |
BLK /WHT |
CHIME |
AC |
CHIME |
AC |
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OUTPUT |
OUTPUT |
HI |
LO |
RED |
RED WHT |
IMA-516
CENTRAL AMPLIFIER
18 / 2 (NUTONE S-143 150 FT MAX.)
PROCEDURE FOR THIS
CONNECTION:
(1)Turn Radio Volume Control on IMA-516 Amplifier to minimum (extreme counterclockwise position)
(2)Make wire connections.
(3)Supply power and adjust the radio/music volume at the source.
(4)Finally, increase IMA-516 Radio Volume Control to desired level.
14 GAUGE
FIELD
GROUNDING
WIRE
DOOR SPEAKER MAY
BE CONNECTED TO
BLACK AND BLACK
WHITE TERMINALS
IN AMPLIFIER OR
REMOTE SPEAKER
DOOR SPEAKER
MODELS WITH
CHIME PUSHBUTTON.
RUN 18 /1 (S-143)
TO CHIME LOCATION
NUTONE IW-2 (MAX 400 FT)
DOOR
SPEAKER
NOTE: If desired NuTone Model: ISB-53W (outdoor speaker) may be used.
The ISB-53W has the same features as the ISB-53 except that it is weather-resistant.
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MUSIC-ONLY SPEAKER SYSTEM
A separate radio/music source may be connected to a nonintercom IMA-516 speaker system to provide a music-only system.
LOW-LEVEL RADIO/MUSIC OUTPUT
(1)NuTone Radio-Intercom. Low-level music output provided - black and blue wires; connect with IW-2 (max. 10 ft.) to black and blue input wires on IMA-516 Amplifier.
(2)Existing stereo receiver with tape output jacks. Make connection from black and blue low-level input wires on IMA-516 Amplifier - to - tape output jacks (use “y” adaptor to make connection to both channel A and B jacks). Use IW-2 (max. 10 ft.).
(3)Speaker connected to an existing AM/FM radio music source. use IW-2 (max. 10 ft.) to connect the IMA-516 low-level input leads to the speaker terminals.
MODEL 301T
TRANSFORMER
IMA-516
120vAC, 60Hz HOUSE
POWER
OBSERVE 18 / 2 (NUTONE S-143) LOCAL CODE
MODELS IS-75,
IS-76, ISA-77
ISA-78, IS-79
SPECIFICATIONS FOR LOW-
LEVEL OUTPUT CONNECTION
(1)Minimum 5mv for 50mw output (least useable output).
(2)50 mv for 4 watts (full output).
(3)Maximum input voltage: 1 volt.
(4)Input impedence: 100k ohms.
Procedure for this connection:
(1)Turn Radio Volume Control on IMA-516 Amplifier to minimum (extreme counterclockwise position).
(2)Make wire connections.
(3)Supply power and adjust the radio-music volume at the source.
(4)Finally, increase IMA-516 Radio Volume Control to desired level.
NUTONE IW-2
LOW-LEVEL
INPUT WIRES
BLUE & BLACK
DECREASE |
DECREASE |
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INCREASE |
INCREASE |
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INTERCOM VOLUME |
RADIO VOLUME |
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CONTROL |
CONTROL |
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INPUT |
DOOR |
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ORN /WHT |
BLK |
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DOOR |
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INPUT |
BLK /WHT |
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ORN |
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CHIME |
AC |
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CHIME |
AC |
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OUTPUT |
OUTPUT |
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HI |
LO |
FIELD |
RED |
RED WHT |
GROUNDING |
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WIRE |
IC-501 (OBSOLETE)
VOLUME CONTROL NUTONE IW-2 (MAX. 500 FT. TO 2 SPKR.) (MAX 250 FT TO 4 SPKR.) (MAX 125 FT. TO 8 SPKR.)
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TYPICAL SYSTEM LAYOUT
The IMA-516 system can be used for two types of apartment layouts: (1) low-rise garden apartments that have a single entrance,
(2) townhouse apartments that have separate entrances for each apartment.
(For systems using 481-B or N482-BX speakers with buzzers)
TO 3RD FLOOR
APARTMENTS
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TRANSFORMER WIRE |
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481B OR |
BUZZER WIRE |
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N482-BX |
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DOOR RELEASE |
APART- |
IW-6 |
WIRE |
MENT |
TO APT. SPEAKER |
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SPEAKER |
1ST FLOOR |
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2ND FLOOR |
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481-B or 482-BX |
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APARTMENT |
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SPEAKER |
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BLK/W |
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BLACK |
18 GA. |
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ORANGE |
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ORANGE |
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RED/W |
BUZZER |
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RED |
WIRE |
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TO |
TO |
TRANSFORMER |
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DOOR |
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RELEASE |
NUTONE IW-6, 4000 FT. MAX. PER SYSTEM. |
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500 FT. MAX. ANY ONE RUN |
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1ST FLOOR |
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DECREASE |
DECREASE |
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INCREASE |
INCREASE |
NUTONE IW-2 |
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(400 FT. MAX.) |
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INTERCOM |
RADIO |
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IMA-516 |
VOLUME |
VOLUME |
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CONTROL |
CONTROL |
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CENTRAL |
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AMPLIFIER |
INPUT |
DOOR BLK |
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ORN/WHT |
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INPUT |
DOOR |
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BLK /WHT |
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ORN |
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AC |
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CHIME |
AC |
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CHIME |
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GA.18 |
OUTPUT |
OUTPUT |
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GA.18 |
LO |
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HI RED |
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RED WHT |
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18/2 |
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(NUTONE S-143) |
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OBSERVE |
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LOCAL CODE |
MODEL 301T |
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TRANSFORMER |
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14 GA. |
FIELD |
DR-1 DOOR |
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RELEASE |
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120vAC, |
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GROUNDING |
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WIRE |
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60Hz HOUSE |
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POWER |
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2500 FT. MAX. TO |
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(18GA.) 2000 FT. |
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LAST SPEAKER BUZZER |
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MAX. BETWEEN DOOR RELEASE |
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AND LAST SPEAKER |
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TO 3RD FLOOR
APARTMENTS
CABLE CONDUCTOR-MULTI OR CONDUCTOR SINGLE .GA 18
1
2
3
MAIN ENTRANCE
DIRECTORY MODEL 498
OR INDIVIDUAL DOOR
SPEAKERS WITH
PUSHBUTTONS
(OPTIONAL) POSTAL LOCK SWITCH (MODEL 499). DOTTED LINE WIRING
LOW-RISE GARDEN APARTMENTS
A typical system includes an entrance directory (with pushbuttons and speaker), apartment speakers (with built-in door buzzer or a separate door chime), and an electric door release.
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