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Operating Instructions
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3
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hour for freeze and every four hours for maintenance conditions.
NOTE: To ensure that the system is functioning properly, the FACP will perform a freeze check
within minutes after the panel is reset, followed by a maintenance check. If there is no freeze or
maintenance condition, the panel will continue to monitor for freeze conditions every hour and
maintenance conditions every four hours.
4.4 Trouble Operation
With no alarms in the system, the detection of a trouble will cause the following:
•
The piezo to pulse 1 second On and 1 second Off
•
The system Trouble indicator to flash one second On and one second Off
•
The output circuits programmed as Trouble Bell NAC to activate
•
The trouble relay to activate
•
TROUBL with device type, adjective/noun, address and trouble description will appear on the
LCD display
•
The same message, along with the time and date, is sent to the optional printer and the history
buffer.
Note that specific troubles will initiate additional actions; for example, loss of AC power will turn
off the AC Power indicator, etc.
Input Zone
For Input Zones, the following is a typical message that could appear on the LCD display for a
device trouble:
The information displayed in the above example provides the following information:
•
First line in display:
The type of event; in this example OPEN indicating a circuit trouble
Device type identifier; in this example, PULL STATION indicates a manual device. Other
device type identifiers which can be displayed include 2-WIRE SMOKE for Smoke
Detector, 2-WIRE HEAT for Heat Detector, etc.
•
Second line in display:
<ADJ>; refers to the user programmed adjective descriptor from library list resident in the
control panel or custom entry via PC.
<NOUN>; refers to the user programmed noun descriptor from library list resident in the
control panel or custom entry via PC.
•
Third line in display indicates Zone and the fault condition. Other possible troubles include:
– OPEN - indicating an open circuit
– DIRTY - maintenance alert indicating that a detector is near but below the allowed alarm
limit and is in need of maintenance before the performance is compromised
•
Fourth line in display:
Time; the current time in this example is 10:00A which represents 10:00 AM
Date; the current month, day and year in this example is 09 for September, 18 for the 18th
day of the month and 14 for the year 2014
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smoke detectors will be polled for maintenance and freeze conditions (temperature of
o
F or less) on initial entry into Normal mode. Thereafter, each device will be polled every
TROUBL PULL STATION
ZONE 1 OPEN FAULT
<ADJ> <NOUN>
10:00A 091814
MRP-2001 Series Manual — P/N 53040:H 1/26/2017
Trouble Operation
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