For quick installation instructions see the “Quick and Easy Guide to
Programming Your ONELINK
®
Alarm and Using the Optional Features”.
This combination Smoke/CO Alarm was designed to be mounted
on the ceiling or wall. It is not a tabletop device. You must install this
device on the ceiling or wall as outlined below. Read “Where To Install
This Alarm” before starting.
Tools you will need: pencil, drill with 3/16” or 5mm drill bit,
Phillips screwdriver, hammer.
• Do not install this unit over an electrical junction box. Air
currents around junction boxes can prevent smoke from
reaching the sensing chamber and prevent the unit from
alarming. Only AC powered units are intended for installation
over junction boxes.
If you want to lock the battery compartment, or lock the Smoke/CO
Alarm to the mounting bracket, please read the “Optional Locking
Features” section in the “Quick and Easy Guide to Programming
Your ONELINK
®
Alarm and Using the Optional Features” attachment
before you begin installation.
PARTS OF THIS SMOKE/CO ALARM
1
Test/Silence Button
2
Battery Compartment
3
Power/Smoke Alarm LED
4
CO Alarm LED
1. Hold the mounting bracket against the ceiling (or wall) so the vertical
mounting slot is aligned in the 12 o’clock position and trace around
the inside of the mounting slots (vertical and horizontal mounting).
2. Put the unit where it won’t get covered with dust when you drill the
mounting holes.
3. Using a 3/16” (5 mm) drill bit, drill a hole through the center of the
oval outlines you traced.
4. Insert the plastic screw anchors (in the plastic bag with screws) into
the holes. Tap the screw anchors gently with a hammer, if necessary,
until they are flush with the ceiling or wall.
5. Line the mounting bracket up over the plastic screw anchors.
6. Screw the mounting bracket to the ceiling or wall through the
mounting slots using the two screws provided.
7. Attach the Smoke/CO Alarm to the
mounting bracket. Line up the guides
on the alarm’s base with the guides
on the mounting bracket. When guides
are lined up, turn the base clockwise
(right) until it snaps into place.
NOTE: Once the Alarm is snapped
onto the mounting bracket, you
can rotate the Alarm to adjust the
alignment.
8. Test the Smoke/CO Alarm.
See “Weekly Testing” for details.
4
HOW TO INSTALL THIS ALARM
TO LOCK THE BATTERY COMPARTMENT
Do not lock the battery compartment until you install the
batteries and test the Alarm.
If the unit does not alarm during
testing, DO NOT lock the battery
compartment! Install new batteries
and test again. If the Alarm still does
not alarm, replace it immediately.
1. Using needle-nose pliers, detach
one locking pin from the mounting
bracket.
2. After batteries are inserted, then
push the locking pin through the
hole near the battery door latch on
the back of the Alarm.
OPTIONAL LOCKING FEATURES
TO LOCK THE MOUNTING BRACKET
1. Using needle-nose pliers, detach
one locking pin from the mounting
bracket.
2. Insert the locking pin through the
hole on the back of the Alarm as
shown in the diagram.
3. When you attach the Alarm to the
mounting bracket, the locking pin’s
head will fit into a notch on the
bracket.
The optional locking features are designed to prevent unauthorized removal of the batteries or alarm. It is not necessary to activate the locks
in single-family households where unauthorized battery or Alarm removal is not a concern.
These Alarms have two separate locking features: one to lock the battery compartment, and the other to lock the
Alarm to the mounting bracket. You can choose to use either feature independently, or use them both.
Tools you will need: • Needle-nose pliers • Standard flathead screwdriver.
Both locking features use locking pins, which are molded into the mounting bracket. Depending on which locking
features you use, remove one or both pins from the mounting bracket using needle-nose pliers.
To permanently remove either locking pin, insert a flathead screwdriver between the locking pin and the
lock, and pry the pin out of the lock.
TO UNLOCK THE BATTERY COMPARTMENT
1. Remove the Alarm from the
mounting bracket. If the unit is
locked to the bracket, see the
section “To Unlock the Mounting
Bracket.”
2. Insert a flathead screwdriver under
the head of the locking pin, and
gently pry it out of the battery
compartment lock. (If you plan to
relock the battery compartment,
save the locking pin.)
3. To relock the battery compartment,
close the battery door and reinsert
locking pin in lock.
4. Reattach the Alarm to the mounting
bracket.
When replacing the batteries, always
test the Alarm before relocking the
battery compartment.
TO UNLOCK THE MOUNTING BRACKET
1. Insert a flathead screwdriver into the
rectangular cut-out on the mounting
bracket nearest to the locking pin.
2. Pry the Alarm away from the bracket
by pushing up on the screwdriver and
turning the Alarm counterclockwise
(left) at the same time.
