How to Program a Releasing Zone Appendix A: Releasing Applications
NFS-640 Programming Manual P/N 51333:B 10/03/2003 69
made to the countdown.
Examples:
1. The FACP programmed Delay Timer begins its 60 second countdown. The Manual
Release Delay switch is pulled when the FACP Delay Timer has counted down to 48
seconds. The 48 seconds remaining in the countdown are overridden by the 30-
second delay initiated by the Manual Delay switch. In this example, the total time
elapsing from FACP countdown initiation to agent release is 42 seconds (12 + 30),
less than the original 60 second FACP Delay Timer countdown.
2. The FACP programmed Delay Time begins its 60 second countdown. The Manual
Release Delay switch is pulled when the FACP Delay Timer has counted down to 8
seconds. The 8 seconds remaining in the countdown is not changed. In this example,
the total time elapsing from FACP countdown initiation to agent release is 60
seconds.
3. The FACP programmed Delay Time is not running (as would happen if the
releasing station were pulled before an alarm registered). The Manual Release Delay
Switch is activated by the pull station. Agent release will occur in 30 seconds.
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