Tyco Grinnell F540 Quick Start Manual

RESIDENTIAL DOMESTIC SHUTOFF VALVE, AUTOMATIC
MODEL F540.1 INCH (25mmI
AUTOMATIC FIRE SPRINKLERS
FIRE SPRINKLER
SYSTEM PRESSURE
GAUGE
DRAIN AND TEST
CONNECTION
>
MODEL F540
RESIDENTIAL
DOMESTIC
WATERFLOW
DETECTOR
SHUTOFF
VALVE (AUTOMATIC)
CITY GATE
CONTROL VALVE
Y WATER MAIN
FIGURE A
MODEL F540 RESIDENTIAL DOMESTIC SHUTOFF VALVE
-TYPICAL ARRANGEMENT-
The 1 inch (25mm) Model F540 Resi-
dential Domestic Shutoff Valve (Ref.
Figure A) is intended for use in dual-
purpose residential supply piping that
serves both domestic and NFPA 13D
residential fire protection sprinkler sys-
tem needs. When an automatic fire
sprinkler operates, the F540 Valve au-
tomatically shuts off essentially all
water flow to the domestic system and
diverts the available water supply to
the fire sprinkler system.
Surveys have indicated that residen-
tial domestic water usage can be ex-
pected to vary from 5 GPM (18,9 LPM)
to 20 GPM (75,7 LPM), all depending
on the city main pressure, the design
of the piping system, and the number
of water outlets. These levels of water
usage could impair the performance of
a residential fire sprinkler system, if
they resulted in a significant reduction
in the anticipated water supply pres-
sure to the fire sprinkler system.
Printed in U.S.A. 9-93
Therefore, it is recommended that the
design of a residential fire sprinkler
system take into account the antici-
pated domestic water usage, unless
provision is made to shutoff essentially
all water flow into the domestic sys-
tem, upon operation of a fire sprinkler.
At a typical residual (flowing) pressure
of 40 psi (2,8 bar) at the inlet to the
F540 Valve, following operation of a
fire sprinkler, the flow into the domestic
system would automatically be re-
duced to less than l/4 GPM (0,9 LPM).
Use of the Model F540 Residential Do-
mestic Shutoff Valve should be consid-
ered when either the water supply can-
not adequately provide for both the
possible domestic usage and fire
sprinkler flow demand, or it is desirable
to increase the effectiveness of the fire
sprinkler system by automatically
shutting off essentially all domestic
flow.
The F540 maximizes the effective use
of an existing water supply and, there-
fore, in areas with limited water sup-
plies, it may eliminate the need to add
costly pumps, pressurized reservoirs,
or electrically operated domestic shut-
off valves. The F540 has a built-in
check valve in the fire sprinkler system
outlet, which eliminates the need for a
separate check valve. Also, the F540
automatically resets, thereby eliminat-
ing the need for valve disassembly
after a fire sprinkler system test or op-
eration.
The Model F540 Residential Domestic
Shutoff Valve is listed by Underwriters
Laboratories Inc. and is suitable for
use in water supply arrangements for
residential fire sprinkler systems de-
signed per NFPA 13D.
WARNING
The Model F540 Residential Domestic
Shutoff Valve described herein must
be installed and maintained in com-
pliance with this document, as well as
TM95