Honeywell MRP-2001E Benutzerhandbuch

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Operating Instructions
2nd-Shot Water Switch
90
MRP-2001 & MRP-2001E   PN 53040:A  4/16/2007
4.9 2nd-Shot Water Switch
Following an initial waterflow release, an input circuit with the nonlatching Type Code of 2nd-Shot 
Water Switch, when activated, will cause another waterflow release to occur immediately.  If a 
manual switch is connected to the circuit, an operator has the option to perform any number of 
additional waterflow releases following an initial release.
4.10 Detector Functions
Maintenance Alert
i
3
 smoke detectors will be polled for maintenance and freeze conditions (temperature less than 
45
o
F) on initial entry into Normal mode.  Thereafter, each device will be polled every hour for 
freeze and every four hours for maintenance conditions  All alarm and system trouble conditions 
are annunciated on the control panel’s LCD.  
Note:  To ensure that the system is functioning properly, the FACP will perform a freeze check five 
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.
Important!  In order to avoid false alarms, input zones must be disabled prior to any service work 
being done.  After service is completed, the input zones must be re-enabled.
4.11 Time Functions: Real-Time Clock
The FACP includes a crystal-based clock that provides time of day, date and day of week.  Time is 
displayed as 12 or 24 hour time with month/day/year and is stored in RAM.  Daylight savings time 
change-over is programmable and automatic.  If both AC and battery are lost, the time must be 
reprogrammed.
4.12 Coded NAC Operation
The NAC circuits resident on the control panel main circuit board can be programmed for coded 
operation.  The available options which can be programmed for coded operation are as follows:
Steady - Steady output with no pulsing
March Time - Pulses at 120 ppm (pulses per minute)
California Code - 10 seconds On, 5 seconds Off
Temporal Code - Pulses at ½ second On, ½ second Off, ½ second On, ½ second Off, ½ 
second On, 1½ second Off
Cross-Zone:
 1st zone of a cross-zoned group in alarm causes programmed NAC output to pulse 1 
second on and 1 second off
 2nd zone of a cross-zoned group in alarm causes programmed NAC output to pulse ½ 
second on and ½ second off - Note: if more than three zones are cross-zoned, the 
programmed NAC output will continue to pulse ½ second on and ½ second off for each 
subsequent zone in alarm, until the final zone in the cross-zoned group goes into alarm
 all zones of a cross-zoned group in alarm causes the output programmed as a Releasing 
Circuit to perform a water release and the programmed NAC output to turn on steady
Synchronized output for System Sensor, Wheelock, Gentex, Faraday or Amseco - Refer to  
"Synchronized NAC Operation" on page 62 for additional information.