B.3.2: Iri Abort Switch - Honeywell nfs2-3030 Programming Manual

Releasing Applications
B.3.2 IRI Abort Switch
An IRI Abort Switch has a standard UL-type delay timer that complies with UL Standard 864,
operating like ULI but with additional functions for Cross Zones. Refer to "How Cross Zones
Work" on page 104 in this appendix for more information on cross zones.
When the first alarm occurs in a releasing zone programmed with a cross-zone code, pressing the
abort switch will prevent activation of the releasing zone should a second alarm occur while the
switch is held.
When the abort switch is released, if a second alarm has occurred while the switch was held, the
ten-second IRI timer activates immediately, and the control panel activates the releasing zone
outputs at the end of the IRI timer countdown.
When the abort switch is released and a second alarm has not occurred while the switch was held,
the panel waits for the cross-zone conditions to be met before activating the releasing zone.
WARNING:
!
THE IRI ABORT SWITCH WILL ONLY WORK IF IT IS PUSHED BEFORE THE SECOND ALARM
OCCURS. IF IT IS PUSHED AFTER THE SECOND ALARM, THE RELEASING ZONE WILL
ALREADY HAVE BEEN ACTIVATED, AND THE SWITCH WILL HAVE NO EFFECT.
Program selections for this releasing zone
Delay Time: 15 seconds
Abort Switch: IRI
Cross Zone: Z
Soak Time: 0
Total time from when Abort Switch 
is pressed to output activation: 
15 + 10 = 25 seconds
Total time from when Abort Switch 
is released to output activation: 10 seconds
100
Abort Switch held 15 sec.
0 sec 5 sec 10 sec
5 sec
5 sec
Alarm 1
Press and hold
the Abort
Switch for 15
seconds
Alarm 2
(Cross-zone
conditions met)
Figure B.4 IRI Abort Switch
NFS2-3030 Programming Manual — P/N 52545:K1 03/20/2012
20 sec 30 sec
10 sec
10 sec
Release the abort
switch; a 10-second
IRI timer begins
At the end of the 10
seconds, the
control panel
activates releasing
zone outputs
Abort Switches