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9. Pull the Battery Pull Tab (yellow tab protruding from unit)
completely out of unit. This will automatically connect
the battery.
Step 4: Testing the Alarm
CAUTION: Due to the loudness (85 decibels) of the
alarm, always stand an arms length away from the
unit when testing.
The test/reset button has four purposes. It tests the unit’s
electronics, resets the CO alarm, activates the HUSH fea-
ture, and activates the Peak Level Memory Feature.
After installation, TEST THE UNIT’S ELECTRONICS by press-
ing and releasing the test/reset button. A series of beeps
will sound, followed by the message “Fire! Fire!” then
another two series of beeps and the message “WARNING!
CARBON MONOXIDE!” followed by 4 additional short
beeps.
Weekly testing is required! If at anytime it does not perform
as described, verify power is connected correctly and that
the battery doesn’t need replacing. Clean dust and other
buildup off the unit. If it still doesn’t operate properly call
the Consumer Hotline at 1 (800) 880 6788.
Interconnect Feature
Your Combination Smoke/CO Alarm can be interconnected to
other multiple station Kidde, Nighthawk, Kidde/Fyrnetics, and
Kidde/FireX products:
• When compatible smoke alarms and heat alarms are inter-
connected to your Smoke/CO Alarm, they will only respond
to a smoke related event.
• When mixing compatible models with battery backup with
models without battery backup, be advised that the models
without battery backup will not respond during an AC
power failure.
• This unit is only approved to interconnect with other
Kidde/Nighthawk products. It is NOT approved to intercon-
nect with any other brand of detection product.
14
Operating and Installation Instructions