EST LSS4 - Page 15

Figure
1-3:
Cross
Zoned
Release
Sequence
M NUA ”
ACPE
PI2E-DHGOD B 5 ,
5ABB EN
'
MANUAL
RELEASE
SE6u
ENCE
Figure1
-4:
Manual
Release
Sequence
IRI
Abort
Sequence
System
Introduction
The IRI
abort
sequencemay
onlybe
activated
priorto
alarm
receiptby
the
second
lnitiatin_• Dev ice
Circuitinc
FOSS
zoned
operation.
Operatin
and
maintainingthe
abort
switch
priortoal
armine ofthe
secondIDC
stopsand
holdsthe
automatic
a•ent
release
delay
timerat1
0
seconds.
and
holdsthe
discharge
warning=
Notification
.Appliance
Circuit.
Release
ofthe
abort
switch
restarts the
automaticayent
discharge
sequence
and
continuestheMAC
countdow'n.TheIRI
abort
sequence
doesnot
function
durinethe
manual
absent
release
sequence,or
when
onlyone
Initiating
Device
Circuit
is
usedto
startthe
agent
discharge
sequence.
LSS4
Installation,
Operation,and
Maintenance
Manual
1.9