Tyco GRINNELL F445 Manual

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PREACTION SYSTEM. DOUBLE INTERLOCK
ELECTRIC/ELECTRIC RELEASE
MODEL F445 - 2-l/2 INCH (65 mm)
l- Model F445 Automatic
Resetting Deluge Valve
2- Model F52 Swing Check Valve
3- System Main Control Valve
(supervised in open position)
4- System Shut-Off Valve
(supervised in open position)
5- Solenoid Valve
6- Low Air Pressure Alarm Switch
7- Diaphragm Chamber Pressure
Gauge
9 Waterflow Pressure Alarm Switch
9- Manual Control Station
lo- Automatic Air/Nitrogen Pressure
Maintenance Device
1 l_ Water Motor Alarm (optional)
12- Cross-Zone Deluge Valve
Releasing Panel with Battery
Back-Up
13- Manual Pull Station (as required)
14- Alarm Bell
15 Heat Detectors (or other fire
detection devices)
16- Automatic Sprinklers
17- Water Supply Pressure Gauge
16 System Air Pressure Gauge
19- F445 Main Drain Valve
20- F52 Main Drain Valve
A- Power Supply To Panel
ulm
B- Audible Alarm Circuit
C- Fire Detection Initiating Circuit
(Zone 1)
D- Manual Pull Initiating Circuit
(Zone 1)
E- Low Pressure Alarm Initiating
FIGURE A
Circuit (Zone 2)
F- Releasing Circuit
MODEL F445 ELECTRIC/ELECTRIC
G- Waterflow Alarm Initiating Circuit
DOUBLE INTERLOCK PREACTION SYSTEM
- SCHEMATIC OF TYPICAL ARRANGEMENT-
The 2-l/2 inch (65 mm) Model F445 The F445 Electric/Electric Double In-
Electric/Electric Double Interlock Pre- terlock Preaction System utilizes a
action System (Ref. Figure A) is de- Model F445 Automatic Resetting Del-
signed for use in applications, such as
uge Valve and a Model F52 Swing
refrigerated areas, requiring the maxi-
Check Valve. The Swing Check Valve
mum degree of protection against in- isolates the Deluge Valve from the
Printed in
U.S.A.
1 l-97
advertent flooding of the sprinkler sys-
tem piping.
system air pressure. The releasing
trim for the Deluge Valve utilizes a
Solenoid Valve, which is operated by
energizing the releasing circuit of a
Cross-Zone Deluge Valve Releasing
Panel (automatic control unit).
Zone 1 of the Releasing Panel is oper-
ated by either a fire detection device or
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