STEP #7 cont.
d. If no alarms occur during the 120 second confirmation period, the 4002 returns automatically to the normal mode.
/Vote: If, any time during the alarm cycle, an alarm is sensed from another zone or contact device (heat
detector or manual station), the 4002 alarms immediately.
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Coded Input on Zone 1 (DIP Switch SWl-2 OFF and JW77 Cut)
The coded input operation is used for either coded stations or coded systems. When selected, this feature
allows the 4002 to connect to devices that input a specific code for their location. These devices must be wired
to zone 1. The coded input feature bypasses the normal latch circuit on zone 1 and allows the signals to foilow
the input code. All other alarm functions remain the same (e.g., auxiliary relays and city circuit operation). The
coded input signal takes priority over other signals while the code device is pulsing. The 4002 will turn priority
over to the other alarm functions after 30 seconds of silence from the coded input device.
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Waterflow on Zone 7 (DIP Switch SWl-3 OFF)
Zone 7 may be used for connecting to the waterflow contacts on a sprinkler system. When selected, zone 7 will
monitor normally-open waterflow contacts for closure to indicate an alarm. Notification appliance circuit 2 will turn
on and cannot be silenced as long as the waterflow contacts are closed. When the flow contacts are restored to
normal, notification appliance circuit 2 can then be silenced by the system reset push button.
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Sprinkler Tamm?r Switch Su,pervision on Zone 8 (DIP Switch SWl-4 OFF)
By setting DIP Switch SWl-4 to off, Zone 8 may be used for monitoring the position of sprinkler gate valves. It
can be connected to normally-closed sprinkler-tamper contacts. The 4002 allows up to five normally-closed con-
tacts, and the circuit is supervised for opens and shorts. When a contact opens, the following sequence occurs.
1. Zone 8 Alarm LED flashes.
2. The Auxiliary Trouble Relay and Piezo activates until silenced.
3. Activating the ALARM SILENCE push button silences the trouble circuit.
4. Restoring the valve to the normal position causes the zone LED to extinguish.
Notes:
1. The 4002 can be reset while a supervisory circuit is still open (not normal). If the circuit is still open when reset,
the sequence will again start at step 1 above.
2. ESP must be provided if operation of an Auxiliary Alarm Relay from Zone 8 is required.
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Sianal Cutoff Time Limit After 10 Minutes (DIP Switch SW14 OFF)
The signal cutoff feature provides an automatic signal silence function. When an alarm occurs, the signals will
sound for 10 minutes and then be silenced.
Note. If the signal silence inhibit feature (see below) is selected in conjunction with this option, the signals will
automatically silence 10 minutes after the conclusion of the signal silence inhibit time.
28
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