Electric Actuation - Tyco DV-1 Manual

Page 12 of 20
Electric
Actuation
The Electric Actuation Trim is required
for electric operation of the DV-1 Valve
by a detection system consisting of
electrical devices such as heat sensi-
tive thermostats, smoke detectors,
and/or electric manual pull stations.
Information on the various types of
separately ordered Solenoid Valves
that may be used with this trim pack-
age is given in Technical Data Sheet
TFP2180. Nominal installation dimen-
sions for the Electric Actuation Trim
are shown in Figure 10.
NOTE
Approval by Factory Mutual is contin-
gent on the use of an FM Approved
24VDC Solenoid Valve. FM only ap-
proves solenoid valves for use in non-
hazardous locations.
The Electric Actuation Trim is only to
be used in conjunction with an electric
deluge valve releasing panel (auto-
matic control unit) that is listed or ap-
proved (as appropriate) for fire protec-
tion system releasing service. In
SYSTEM PIPING WITH OPEN NOZZLES OR SPRINKLERS - NORMALLY DRY
DELUGE VALVE
RELEASING PANEL
(AUTOMATIC
CONTROL UNIT)
POWER SUPPLY
(TYPICALLY
120 VOLTS AC)
DIAPHRAGM CHAMBER
SUPPLY CONTROL VALVE
(NORMALLY OPEN)
addition, the deluge valve releasing
panel is only to be operated by listed
or approved (as appropriate) fire de-
tectors.
Operation of an electrical device such
as a heat sensitive thermostat, smoke
detector, or electrical manual control
station signals the deluge valve re-
leasing panel to energize the Solenoid
Valve. In turn, the energized Solenoid
Valve opens resulting in a rapid pres-
sure drop in the Diaphragm Chamber
of the DV-1 Valve, and the force differ-
ential applied through the Clapper
latch which holds the Clapper down in
the set position is reduced to below the
valve trip point.
Consult with the Authority Having Ju-
risdiction regarding installation criteria
pertaining to electric actuation cir-
cuitry.
ELECTRIC DETECTION SYSTEM
(TYPICALLY 24 VOLTS DC)
HEAT DETECTORS, SMOKE DETECTORS,
MANUAL PULL STATIONS, ETC.
SOLENOID VALVE
(TYPICALLY 24 VOLTS DC)
DRAIN
LOCAL
MANUAL
CONTROL
STATION
DRAIN
SYSTEM SCHEMATIC — ELECTRIC ACTUATION
NOTE
DIAPHRAGM
CHAMBER
PRESSURE
GAUGE
RESTRICTION
MAIN DRAIN VALVE
(NORMALLY CLOSED)
DRAIN
DIAPHRAGM CHAMBER
SUPPLY CONNECTION
FIGURE 8
TFP1330
WATERFLOW
PRESSURE
ALARM SWITCH
MODEL DV-1
DELUGE VALVE
WATER SUPPLY
PRESSURE
GAUGE
MAIN
CONTROL VALVE
(NORMALLY
OPEN)
WATER
SUPPLY