Operating Instructions

2nd-Shot Water Switch

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

i3 smoke detectors will be polled for maintenance and freeze conditions (temperature less than

45oF) 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.

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MRP-2001 & MRP-2001E PN 53040:A 4/16/2007