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.
After installation, TEST THE UNIT’S ELECTRONICS by pressing and 
releasing the test/reset button. You will hear one beep on the 
button push, and will then hear the 
following sequence of "beeps:
Three long beeps. 
Pause 
Three long beeps. 
Pause 
Single beep to reset 
Weekly testing is required! If at
anytime it does not perform as 
described, verify power is connected 
correctly. Clean dust and other buildup 
off the unit. If it still doesn’t operate properly call the Product 
Support Line at 1-800-880-6788.
Interconnect Feature
Your Smoke Alarm is interconnectable to other multiple station 
Kidde, Nighthawk and Kidde/Fyrnetics products:
•
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 interconnect 
with any other brand of detection product.
• This alarm is interconnect compatible with the following alarms
and accessories:
–Smoke alarms: 1235, 1275, 1276, 1285, i12020, i12020A,
i12040, i12040A, i12060, i12060A, i12010SCO, i12010S, 
i4618, i4618A, KN-SMFM-I, RF-SM-ACDC, PE120, P12040, 
Pi2000, Pi2010, i12080, i12080A, KN-COSM-I, 
KN-COSM-IB, KN-COSM-IBA
– Heat alarm: HD135F 
– CO alarms: KN-COB-IC, KN-COP-IC, KN-COPE-I 
– Relay modules: SM120X, CO120X 
– Strobe Light: SL177i, SLED177i
Installation Instructions
12
FIGURE 4 
Installing AC Quick 
Connect