4. OPERATION AND TESTING
OPERATION: The smoke alarm is operating once a fresh battery is
installed and testing is complete. When products of combustion
are sensed, the unit sounds a loud 85db pulsating alarm until the
air is cleared.
INTELLIGENT HUSH
TM
CONTROL
Note: The model 29J does not have Hush
®
The “HUSH
®
” feature has the capability of temporarily desensitiz-
ing the alarm circuit for up to 8 minutes. This feature is to be used
only when a known alarm condition, such as smoke from cooking,
activates the alarm. The smoke alarm is desensitized by pushing
the “HUSH
®
” button on the smoke alarm cover. If the smoke is
not too dense, the alarm will silence immediately and the red LED
will flash every 1.5 seconds while in Hush®. This indicates that the
alarm is in a temporarily desensitized condition. The smoke alarm
will automatically reset after 8 minutes and sound the alarm if par-
ticles of combustion are still present.
The “HUSH
®
” feature can be used repeatedly until the air has
been cleared of the condition causing the alarm. Pushing the
test/reset button on the alarm will end the Hush
®
period.
(- )
(+)
FIGURE 10
FIGURE 12
ALARM 1
ALARM 12
FIGURE 11