Hochiki FirePro Xtinguish, Installation And Operation Manual

Page: 32 / 113

Page 32 of 113
FirePro Xtinguish I&O Manual V1.05 UL
10.8 Abort Switches
Where provided, the system abort switches shall be located within the protected area and shall be
located near the means of egress for the area.
All abort switches shall be UL listed and compatible with the control panel.
A telephone should be located near the abort switch.
An abort switch shall not be operated unless the cause for the condition is known and corrective
action can be taken.
The abort switch shall be of a type that requires constant manual pressure to cause abort.
The abort switch shall not be of a type that would allow the system to be left in an aborted mode
without personnel present. In all cases the manual emergency control shall override the abort
function.
Operation of the abort function shall result in both audible and distinct visual indication of system
impairment.
The abort switch shall be clearly recognizable.
10.9 Alarms Indicating Failure of Supervised Devices and Equipment
Alarms indicating failure of supervised devices or equipment shall give prompt and positive indication
of any failure and shall be distinctive from alarms indicating operation or hazardous conditions.
10.10 Warning and Instruction Signs
Warning and instruction signs at entrances to and inside protected areas shall be provided.
10.11 Pre-Discharge Alarms and Time Delays
For the aerosol extinguishing system, a pre-discharge alarm and time delay, sufficient to allow
personnel evacuation prior to discharge, shall be provided.
For hazard areas subject to fast growth fires, where the provision of a time delay would seriously
increase the threat to life and property, a time delay shall be permitted to be eliminated.
Time delays shall be used only for personnel evacuation or to prepare the hazard area for discharge.
Time delays shall not be used as a means of confirming operation of a detection device before
automatic actuation occurs.
10.12 Unwanted System Operation
Care shall be taken to thoroughly evaluate and correct any factors that could result in unwanted
discharges of the system.
To avoid unwanted discharge of an aerosol system during maintenance or when anyone enters the
protected enclosure, a supervised disconnect switch shall be provided.
The disconnect switch shall interrupt the releasing circuit to the
FirePro Xtinguish
condensed
aerosol system.
The disconnect switch shall be UL listed and compatible with the control panel.