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Preaction 328h
January 6, 2012
2" MoDEL G-2000P PrEACTIoN
TECHNICAL DATA
wITH ELECTrIC rELEAsE
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
Telephone: 269-945-9501 Technical services: 877-384-5464 Fax: 269-818-1680 Email: techsvcs@vikingcorp.com
C. Fire Condition (Double Interlock system):
In a �ire condition, o�eration o� the detection system activates the �irst initiating circuit in the release control �anel, causing an
alarm to activate. When a s�rinkler o�erates, air �ressure esca�es �rom the s�rinkler �i�ing. The air su�ervisory switch activates
the second initiating circuit in release control �anel. When BOTH initiating circuits have been activated, the release control �anel
energizes solenoid valve o�en. With the solenoid valve o�en, �rime water is drained �rom the �rime chamber, causing the G-
2000P �alve to o�en, �illing the s�rinkler �i�ing with water. Water �rom the intermediate chamber o� the Model G-2000P �alve
�ressurizes the sensing end o� the POR� causing the POR� to o�en. The o�en POR� �revents water �ressure �rom building in
the �rime chamber should the solenoid close.
Figure 7b - Fire Condition - Double Interlock system
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