Technical data

SUREFIRE® SINGLE
INTERLOCKED PRE-PRIMED
PREACTION SYSTEM
TECHNICAL DATA
August 31, 2006
Preaction 353d
NOTE: THE COMPLETE SYSTEM OPERATION MUST BE TESTED AFTER SERVICING, CHANGING PROGRAMMING, ADDI-
TION OR DELETION OF SYSTEM COMPONENTS OR AFTER ANY MODIFICATION, REPAIR, OR ADJUSTMENT TO SYSTEM
HARDWARE OR WIRING. ALL COMPONENTS, CIRCUITS, SYSTEM OPERATION OR SOFTWARE FUNCTIONS KNOWN TO
BE AFFECTED BY A CHANGE MUST BE 100% TESTED.
2. Replace any sprinklers and/or spray nozzles that have been damaged or exposed to fire conditions.
D. Restore AC power to PAR-3 Control Panel (F.8). Ensure that standby batteries are charged or charging. Always connect and turn
on AC power source prior to connecting the standby batteries. Connecting the standby batteries to the PAR-3 Control Panel (F.8)
before the AC power is connected and turned on may damage the panel.
E. Return the system to service. Refer to Section E: “PLACING THE SYSTEM IN SERVICE”.
11. INSPECTIONS AND TESTS
It is imperative that the system be inspected and tested on a regular basis in accordance with NFPA 25.
Refer to INSPECTIONS and TESTS recommended in current Viking Technical Data describing individual components of the
SUREFIRE® Single Interlocked Pre-Primed Preaction System.
Where difficulty in performance is experienced, contact Viking Technical Service if any field adjustments are to be made.
The frequency of the inspections may vary due to contaminated or corrosive water supplies or corrosive atmospheres. For minimum
maintenance and inspection requirements, refer to NFPA 25. In addition, the Authority Having Jurisdiction may have additional main-
tenance, testing, and inspection requirements which must be followed.
WARNING: ANY SYSTEM MAINTENANCE WHICH INVOLVES PLACING A CONTROL VALVE OR DETECTION SYSTEM OUT
OF SERVICE MAY ELIMINATE THE FIRE PROTECTION CAPABILITIES OF THAT SYSTEM. PRIOR TO PROCEEDING, NOTIFY
ALL AUTHORITIES HAVING JURISDICTION. CONSIDERATION SHOULD BE GIVEN TO EMPLOYMENT OF A FIRE PATROL IN
THE AFFECTED AREAS.
NOTICE: THE OWNER IS RESPONSIBLE FOR MAINTAINING THE FIRE PROTECTION SYSTEM AND DEVICES IN PROPER
OPERATING CONDITION.
Refer to MAINTENANCE INSTRUCTION provided in the current Viking Technical Data describing individual components of the Viking
Single Interlocked SUREFIRE® Single Interlocked Pre-Primed Preaction used.
Where difficulty in performance is experienced, the valve manufacturer or his authorized representative shall be contacted if any field
adjustment is to be made.
WATER SUPERVISORY SWITCH SETTINGS
Water Supply
PSI
Detection Circuit
Two (DC2) PSI
Detection Circuit
Four (DC4) PSI
System Water
Normal PSI*
0 - 250
.75 X Water Supply
10 + DC2 N/A
0 - 250 * 15 + Pm 10 + DC2 25 + DC2
See system wiring diagram #13730
*For use when using lower supervisory pressure than the system
supply and the optional Pilot Pressure Regulating Valve
Pm = Maximum Head Pressure = H x 0.433
where H = height from switch (E.1) to highest sprinkler pipe point at celing
Table 1