4. OPERATION AND TESTING
OPERATION: The smoke alarm is operating once A.C. power is applied, fresh
batteries are installed and testing is complete. When the smoke alarm ionization
chamber senses products of combustion, the horn will sound a loud (85db) tem-
poral alarm until the sensing chamber is cleared of smoke particles.
SMART HUSH
TM
CONTROL: The “HUSH” feature has the capability of temporarily
desensitizing 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 HUSH feature cannot be activated unless the smoke alarm is sound-
ing in the originating alarm mode.The smoke alarm is desensitized by pushing
the “TEST/HUSH” button on the smoke alarm cover. If the smoke is not too
dense, the alarm will silence immediately. The red LED will illuminate for 1.5 sec-
onds every 8 seconds while in hush. This indicates that the alarm is in a tem-
porarily desensitized condition. The smoke alarm will automatically reset after
approximately 8 minutes and sound the alarm if particles 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/Hush button on the
alarm will end the hush period.
NOTE: DENSE SMOKE WILL OVERRIDE THE HUSH CONTROL FEATURE AND
SOUND A CONTINUOUS ALARM.
CAUTION: BEFORE USING THE ALARM HUSH FEATURE, IDENTIFY THE
SOURCE OF THE SMOKE AND BE CERTAIN A SAFE CONDITION EXISTS.
LED INDICATORS: This smoke alarm is equipped with red and green LED indica-
tors. The green LED (when illuminated) indicates the presence of AC power.
The red LED has four modes of operation:
Standby Condition: The red LED will flash every 30-40 seconds to indicate
that the smoke alarm is operating properly.
Alarm Condition: When the alarm senses products of combustion and
goes into alarm, the red LED will flash one flash per
second. The flashing LED and pulsating alarm will
continue until the air is cleared.
WHEN UNITS ARE INTERCONNECTED, only the red LED
of the alarm which senses the smoke or is being tested
(the originating unit) will flash. All other units in the
interconnect system will sound an alarm but their red
LED’s will NOT be flashing.
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