NuTone IA-28 - Manuel (Page 7)

7
OPERATIONAL CHECKOUT
INTERCOM SYSTEM FOR HOME OR OFFICE VOLUME
SETTING – Each remote speaker's volume control should be set
between 3/4 and full volume. The intercom Volume Control in the
Amplifier should be set about 1/3 of its rotation. In general, keep
the remote speaker's volume control high and the amplifier
intercom volume control relatively low.
MODEL ISB-53 SPEAKER –
INTERCOM – Press the INTERCOM button to speak with inside
or patio speakers. To speak with the door speaker, lock in the
DOOR button and press INTERCOM button. To listen, release the
intercom button.
MONITORING – To monitor a specific speaker location, lock in
the TALK LOCK button. The speaker will now transmit sounds to
other speakers. NOTE: Be certain the speaker set for
monitoring has its volume control set to maximum level.
DOOR ANSWERING INTERCOM FOR APARTMENTS
To talk, place the intercom switch to TALK. To listen, place the
button to LISTEN. To activate the door release, press the DOOR
button to OPEN.
MUSIC-ONLY SPEAKER SYSTEM
The maximum volume for the radio/music is set at the source. The
amplifier has a Radio Volume control which can decrease the
volume which is set at the music source.
INSTALLER'S TROUBLESHOOTING GUIDE
TROUBLESHOOTING HINT: If system does not work, remove
remote speaker and accessory wiring from amplifier, then connect
a pair of test speakers. Connect one test speaker to the orange
pair terminals and connect the other test speaker to the red pair
terminals. If sound is heard, the amplifier is operational. Begin
connecting one remote speaker at a time and testing for proper
operation. If remote speaker does not work, check for wiring error
(improper connection or short).
1. System does
not work.
1a.Improper wire.
1b.Power supply.
1a.NuTone Model IW-6 cable
must be used with this
system. No other wire can
be used.
2. System worked
temporarily.
2. Improper
transformer.
2. NuTone Model 301T
transformer must be used.
3. No intercom. 3. Intercom gain
control.
3. Check setting of intercom
gain control.
4. No radio/music
(optional).
4a.Radio volume
control.
4a.Be certain volume control
on radio/music source is
set sufficiently high. Next
check radio volume control
on amplifier.
4b.Short in wiring. 4a.Be certain volume control
on radio/music source is
set sufficiently high. Next
check radio volume control
on amplifier.
1b.Check 120vAC, 60Hz
house power supply to
transformer