I n s t a l l a t i o n
• Do not install in areas where the temperature is colder
than 40˚F (4.4˚C) or hotter than 100˚F (37.8˚C). These
areas include unconditioned crawl spaces, attics,
porches and garages. Extreme temperatures will affect
the sensitivity of the CO alarm.
• Do not install CO alarm near deep cell large batteries.
Large batteries have emissions that can cause the CO
alarm to perform at less than optimal performance.
The following conditions can result in transient CO situations:
• Excessive spillage or reverse venting of fuel burning
appliances caused by outdoor ambient conditions, such as:
- Wind direction and/or velocity, including high gusts
of wind. Heavy air in the vent pipes (cold/humid air
with extended periods between cycles).
- Negative pressure differential resulting from the use
of exhaust fans.
- Simultaneous operation of several fuel burning
appliances competing for limited internal air.
- Vent pipe connections vibrating loose from clothes
dryers, furnaces or water heaters.
- Obstructions in or unconventional vent pipe designs
which can amplify the above situations.
• Extended operation of unvented fuel burning devices
(range, oven, fireplace, etc.).
• Temperature inversions which can trap exhaust gasses
near the ground.
• Car idling in an open or closed attached garage, or near
a home.
Powering the Alarm
To install, choose a standard unswitched 120 volt outlet to
plug the unit into. For model
KN-COB-LCB-A
, pull the
yellow tab to activate the battery. Plug the alarm into an
unswitched outlet.
CAUTION: Do not rotate unit while it is plugged into an outlet,
as damage to the plug may result.
O p e r a t i o n
When the alarm is first powered up, the red alarm light
will come on and the alarm will sound briefly, then the
green operate light will come on. This is to show that the
CO alarm is receiving power and that the alarm circuit is
functioning.
Within a few minutes, the alarm will start monitoring for
carbon monoxide and will continue to do so as long as it
receives power.
Model
KN-COB-DP-H
only: If the alarm is unplugged or
loses power, a fading alarm will sound briefly to alert that
it has been disconnected from its power source. This
fading alarm will also sound in the event of a power
outage. A brief alarm will sound to alert when the power
is restored. THIS CO ALARM WILL NOT OPERATE
WITHOUT 120V AC POWER.
Model
KN-COB-LCB-A CO
only: If the alarm loses power,
and a good 9V battery is installed, the alarm will
automatically switch to its battery backup mode and the
green LED will flash approximately every 10 seconds. The
unit will continue to operate normally and detect CO for
at least 20 hours.
When AC power is restored, the alarm will automatically
switch back to normal operating mode and the green LED
will light continuously.
When the model
KN-COB-LCB-A CO
alarm is unplugged
it will produce a constant tone until the battery is removed
or the unit is plugged back into the wall - unless the
Power-Disconnect Alert has been deactivated or disabled
as described in the
Features
section.
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