Grinnell F470 User Manual

Left Side
Front
NOTES:
(a.) f$gmncferance, additional 2’ (50 mm) is
(b.) Add Q”(230 mm) for optional F470 Double
Interlock Accelerator Trim.
Dim
A’
:
4 INCH SYSTEM
Inches
(mm)
23.25
;:;A; 7.00
12.00
(305)
Dim
A’
:
6 INCH SYSTEM
Inches
(mm)
26.25
5.25 :Fz;
12.00
FIGURE B
E
8.69
g; ED
8.69
14.56
I;::;
15.44
INSTALLATION CONFIGURATION
F 13.89 (348) F
14.50
AND CLEARANCE DIMENSIONS
l F520 or F5201
l F520 or F5201
panel must operate and open the So-
lenoid Valve upon automatic operation
of the electric fire detection initiating
circuit or manual operation of the elec-
tric-manual pull initiating circuit, and
the sprinkler system piping must lose
air pressure due to operation of one or
more sprinklers.
The Double Interlock Preaction Sys-
tem will automatically actuate only
when both the Dry Pilot Actuator and
the Solenoid Valve are open at the
same time. Accidental opening of just
the Dry Pilot Actuator (for example: a
lift truck accidentally dislodges a
sprinkler), or just energizing the Sole-
noid Valve (for example: an accidental
operation of an electric pull station),
will only cause an alarm, and will not
actuate the system or flood the sprink-
ler system piping.
Both the 4 and 6 inch (100 and 150
mm) F470 Double Interlock Preaction
Systems may be equipped, as an op-
tion, with the Model F311 Accelerator.
In the case of the F470 Double Inter-
lock Preaction System, the F311 oper-
ates as a quick opening device for the
Dry Pilot Actuator and provides a re-
duction in the time to open it, following
the operation of one or more automatic
sprinklers.
The 4 and 6 inch (100 and 150 mm)
Model F470 Electric/Pneumatic Dou-
ble Interlock Preaction Systems are
listed by Underwriters Laboratories
Inc. and Underwriters’ Laboratories of
Canada as Double Interlock Type
Water Control Valves, and they are
approved by Factory Mutual Research
Corporation as Refrigerated Area Sys-
tems for use in refrigerated rooms or
buildings.
WARNZNG
The 4 and 6 inch Model F470 Double
Interlock Preaction Systems with the
-2-
OBSOLETE

Grinnell F470 Specifications

General

Brand	Grinnell
Model	F470
Category	Control Unit
Language	English