NuTone 478-76, 478-77 User Manual
Apartment House
Intercoms
MODELS: 478-76 & 478-77
INSTALLATION INSTRUCTIONS
READ & SAVE THESE INSTRUCTIONS!
(Please see other side for Model 478-77)
Model 478-76
Use as a replacement control amplifier for the former Direct-A-Com 1 System,
Model 476 amplifier:
1. Install the Model 467 Postal/Main Door Timer module as described in the instructions
packaged with the unit.
2. Wire the amplifier-adapter to the system as shown in the wiring diagram.
TO APT. NO 3
TO APT. NO 2
DIR.
1
2
3
TWISTED
PAIR
DOOR REL.
POSTAL LOCK
LOBBY SPKR.
478-76
INLCUDES:
467
478
ADAPTOR
A2
A1
486B
APT. NO 1
R
A2
A1
C
TWISTED
PAIR
TWISTED
PAIR
ADAPTOR BOX
RING SWITCH
REMOTE COMMON
A2
A1
A2
A1
301
TRANSFORMER
RING COMMON 1
CONTROL
GROUND
16VAC
16VAC
Product specifications subject to change without notice.
4820 Red Bank Road, Cincinnati, OH 45227
Printed in U.S.A., Rev. 10/03, Part No. 48713
Model 478-77
Use as a replacement control amplifier for the former Direct-A-Com 1 with two
entry auto-call transfer, Model 477 amplifier:
1. Install the Model 467 Postal/Main Door Timer module and the Model 469 Auto-Call
Transfer module as described in the instructions packaged with each unit.
2. Wire the amplifier-adapter to the system as shown in the wiring diagram.
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
TO APT. NO. 3
TO APT. NO. 2
DIR. NO. 2
1
2
3
1
2
3
DIR. NO. 1
TWISTED
PAIR
TWISTED
PAIR
TWISTED
PAIR
TWISTED
PAIR
478-77
INCLUDES:
467
469
478
ADAPTOR
NO. 1
DOOR REL.
NO. 1 POSTAL LOCK
NO. 1 LOBBY SPKR.
NO. 2
DOOR REL.
NO. 2 POSTAL LOCK
NO. 2 LOBBY SPKR.
A2
A1
LAMP SIGNAL
RING COMMON 1
RING COMMON 2
CONTROL
GROUND
301
TRANSFORMER
486B
APT. NO. 1
R
A2
A1
C
A2
A1
ADAPTOR
478-77
REMOTE COMM.
DIR. LAMP
DIR. LAMP
RING SW NO. 2
RING SW NO. 1
A2
A1
16VAC
16VAC
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