alarm system). When the timer expires, the releasing appliances activate (assuming the abort switch is not active).
The timer range is 0 to 60 seconds, selectable in 5 seconds increments. The default setting for this option is 60 seconds.
• Abort Release Time Delay. The Abort Release Time Delay specifies the action that occurs when the abort switch is released. This
option applies only to Agent Release and combination Agent Release Preaction/Deluge applications (applications 1 through 4, and 9
through 13 in the application matrix described in Appendix D Applications with Relay Options. Refer to Programming Abort Switch
Operation for more information.
7.3 Manual Release
For systems intended for Halon 1301 (NFPA 12A), Halon 1211 (NFPA12B), or clean agent (NFPA 2001) release, a pre-discharge NAC must be
configured to warn building of the impending discharge. The setting of the release timer selects the duration of the pre-discharge signal.
Compliance with ADA requires Audible and Visible notification.
Activation of a manual release switch is indicated with the red "Manual Release" LED. Upon activation of the Manual Release switch, the
system will activate the applicable releasing circuits when the Manual Release timer expires. The system will also activate the applicable
releasing circuits upon expiration of a previously active automatic release timer, if the remaining time on the automatic release timer is less
than the programmed Manual Release timer. Note that setting the manual release timer to zero will result in an immediate release.
If a delay timer is used, the NAC2 cadence is a 120 BPM code while the timer counts down. When the timer expires, NAC2 horns change
from pulsing to ON steady.
Note: When the NAC2 horns pulse at 120 BPM, agent release is imminent.
7.4 Abort switch
An operator can prevent the release of the suppression agent by pressing the abort switch at any time between when the automatic
releasing sequence starts and the solenoid is activated. It is critical that all operators and building facilities' personnel understand the
following about the abort switch.
• Manual release stations override the abort switch. In other words, if a manual release station is activated while the abort switch is held
in, agent release occurs.
• No agent release occurs while the abort switch is held in.
• The abort switch has no effect on an activated releasing, preaction, or deluge system, for example, if the system is releasing agent or
water, pressing the switch will not stop the release.
• When the abort switch is released, one of the following occurs:
- If the alarm conditions clear and a system reset occurs before the switch is released, no agent release occurs.
- If the alarm conditions are not clear and the delay timer is still running, no agent release occurs until the timer expires.
- If the alarm conditions are not clear and the delay timer has expired, agent release occurs.
• Panel indication for Abort Switch Active
- During normal, non-alarm standby conditions, actuation of an abort switch causes the Supervisory LED to flash, and the sounder to
sound steadily until ACK is pressed, or the abort switch is released.
- During an active, non-acknowledged alarm, actuation of the abort switch causes the Abort Active LED to turn on steady, and the
sounder to pulse until ACK is pressed. If the abort switch is released, the LED turns off, but the sounder continues to pulse until
ACK is pressed.
- During an active acknowledge alarm, actuation of an abort switch causes the Abort Active LED to turn on steady, and the sounder to
sound steadily until ACK is pressed, or the abort switch is released.
7.5 Alarm Clear/Reset
Operators should be made aware that if the alarm is verified to be false, clearing the alarm condition and resetting the system prior to
releasing the abort switch prevents agent discharge.
7.6 Performing a Lamp Test
Performing a lamp test lights all of the LEDs on the system and allows you to verify that all of the system's LEDs are functioning.
To perform a lamp test, press and hold the ACK button for a duration of five seconds.
page 54 579-354 Rev. X
4004R Fire Alarm installation, programming, and operating instructions
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