Operational Summary - Universal Security Instruments MCN400CN User Manual

CONDITION OF ALARM AUDIBLE & VISUAL SIGNALS BEFORE SOLUTION / RECOMMENDATION
POWER
HORN GREEN LED
Silent On and Blinks
off approx every
20 seconds
Silent Off and Blinks
on approx every
40 seconds
1 beep, Turns off
1 second when the
pause, 4 beeps start
4 beeps,
5 second
pause
4 beeps, Off
5 second
pause,
repeat
1 beep, Turns off
1 second when the
pause, beeps start
repeat
Horn sounds On and blinks
when no off approx every
hazard is 20 seconds
present
Silent On and blinks
off approx every
20 seconds
Silent On and blinks
off approx
every
20 seconds
Silent Off
On and blinks
Silent
off approx
every
20 seconds
1 beep, Turns off when
1 second the horn starts
pause,
4 beeps,
5 second
pause
3 chirps Off
approx every
20 seconds
Off
2 chirps
approx every
20 seconds
1 chirp On and blinks
approx every off approx
40 seconds every
20 seconds

OPERATIONAL SUMMARY

GAS CO
BLUE LED RED LED
Off Off
Off Off
Blinks in
Blinks in
sync with sync with
cycle of
cycle of the
4 beeps
first beep
Off Blinks in
sync with
cycle of
4 beeps
Blinks in Off
sync with
the horn
Blinks when Blinks when
no hazard is no hazard
present is present
Off Off and
blinks on
approx every
10 seconds
until reset
Off and Off
blinks on
approx every
10 seconds
until reset
Off Off and
blinks on
approx every
5 seconds
until reset
Off and blinks
Off
on approx
every
5 seconds
until reset
Blinks in Blinks in
sync with sync with
the first beep cycle of 4
beeps
Off Off
Off Off
Off Off
Page 11
SOLUTION /
RECOMMENDATION
AC Power is present. DC power is present
Alarm is powered by battery backup. AC Power is not
present. Check the breaker or fuse box for power. If the
breaker or fuse box looks normal, call a licensed
electrician for assistance.
The TEST button has been pressed. The test sequence
lasts for approximately 8 seconds after the button is
released.
Originating CO alarm - If a hazard is identified, please
take all precautions when an alarm sounds by calling an
Emergency Service and getting out of the home.
Originating Gas alarm - If a hazard is identified, please
take all precautions when an alarm sounds by calling an
Emergency Service and getting out of the home.
Nuisance Alarm - If there is no hazard present, verify the
alarm is mounted in the correct location (see User's
Manual, "AVOID THESE LOCATIONS" section). Reset
alarm as instructed below.
The CO Alarm Silence Feature is activated by pressing
and releasing the SILENCE button on the initiating alarm
while in alarm condition. The alarm will remain silent for
approx. 4 minutes, depending on the level of CO
detected. If CO levels drop below alarm levels, the alarm
will remain silent and return to normal operation. If CO
levels remain constant or increase, this indicates
potentially dangerous situation and the horn will sound
again. Ventilate area.
The Gas Alarm Silence Feature is activated by pressing
and releasing the SILENCE button on the initiating alarm
while in alarm condition. The alarm will remain silent for
a maximum of 20 seconds. If Gas levels drop below alarm
levels, the alarm will remain silent and return to normal
operation. If Gas levels remain constant or increase, this
indicates potentially dangerous situation and the horn
will sound again. Ventilate area.
CO Alarm Latching LED Indicator - The alarm has
previously detected CO and had alarmed. Follow the
reset instructions to remove the latching LED.
Gas Alarm Latching LED Indicator - The alarm has
previously detected Gas and alarmed. Follow the reset
instructions to remove the latching LED.
To reset the Alarm LED's, press the RESET button for 2
seconds. This will clear the Alarm LED's and clear the
Silence mode.
MCND-401CN and MCND601CN Series only: To reset
the peak CO memory, press and hold the RESET button
for 5 seconds until the peak level is cleared. The display
screen will display "000" when the peak CO level is reset
and then return to "- - -."
Trouble/Service Alarm. Replace the alarm.
End-of-Service Life Alarm. Replace the alarm.
Low Battery - Check to make sure the battery activation
pull tab has been completely removed, battery polarity is
correct and the battery terminals are making contact with
the alarm contacts in the battery compartment. If chirp
continues, replace the 9V battery.