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Programming
NAC #
1=ZONE
00 00 00 00 00
2=SIL INHIBITED NO
NAC Screen #3
NAC #
1=SYNC TYPE
NAC Screen #4
100
3.6.5.5.6 Zone
A maximum of five zones can be programmed to each main circuit board NAC. Pressing 1
while viewing NAC Screen #3 displays the following screen:
Z00 Z** Z** Z** Z**
Note that Z** represents the Zone Number(s) corresponding to the selected NAC. The factory
default for an unprogrammed device is Z00 for general alarm zone. A flashing cursor will
appear on the first 0 to the left. Enter the two digit number corresponding to the zone that is to
be assigned to this NAC. The cursor moves to the next Z** designation. Continue entering
zone assignments or the remaining zones can be left blank or programmed as general alarm
zone Z00. When all desired changes have been made, press the Enter key to store the zone
assignments. The display will return to the NAC Screen #3 which will show the zone
assignments just entered.
Note: Zones do not apply to NACs programmed as Door Holder, Reset Power or Non-Reset
Power.
3.6.5.5.7 Silence Inhibited
The Silence Inhibit feature, when enabled, prevents the silencing of the selected main circuit
board NAC for a period of one minute. Resetting the FACP will also be prevented for one
minute while the NAC programmed for silence inhibit is activated. Pressing 2 while viewing
NAC Screen #3 will cause the display to change from the factory default of Silence Inhibit No
to Silence Inhibit Yes. Each press of the 2 key will cause the display to toggle between the two
options.
3.6.5.5.8 Sync Type
If synchronized strobes were selected as the Type of device installed, the type of
synchronization must be selected in this option. Pressing 1 while viewing NAC Screen #4 will
cause the following screen to be displayed:
1=SYSTEM SENSOR
2=WHEELOCK
3=GENTEX
Pressing 1 while viewing this screen will select System Sensor synchronization, 2 will select
Wheelock and 3 will select Gentex.
3.6.5.5.8.1 Maximum Number of Strobes for Synchronization
The total current draw for each Notification Appliance Circuit cannot exceed 2.5 amps. Refer
to the manufacturer's documentation supplied with the Strobes to determine the maximum
current draw for each strobe and ensure that the circuit maximum is not exceeded.
To ensure proper strobe and circuit operation, there is also a limit to the number of strobes that
can be attached to each circuit. Following is a list of the strobes that have been tested with this
FACP and the maximum number that can be connected to each NAC. Make sure that the NAC
maximum current is not exceeded:
System Sensor: 40 Strobes
Wheelock: 25 Strobes
Gentex: 23 Strobes
ZONE ASSIGNMENT
Zone Screen
NAC SYNC TYPE
MS-9050UD PN 52413:C 01/23/08
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