Tyco DV-5 - DN100;DN150 Wet Pilot Trim Assembly

TFP1484
Page 13 of 16
Quarterly Solenoid Valve
Test Procedure for
Electric Actuation
Proper operation of the Solenoid Valves
for electric actuation must be verified at
least quarterly as follows:
Step 1. Close the Main Control Valve.
Step 2. Open the Main Drain Valve.
Step 3. Test the deluge releasing panel
in accordance with the manufacturer’s
instructions to energize the Solenoid
Valves.
Step 4. Verify that the flow of water
from the Solenoid Valve drain connec-
tion increases to a full flow.
Step 5. Verify that the Diaphragm
Chamber pressure has decreased
to below 25% of the water supply
pressure.
Step 6. Reset the electric detection
system in accordance with the manu-
facturer’s instructions to de-energize
the solenoid valve. Check the Solenoid
Valve drain for leaks. Correct any leaks
before proceeding to the next step.
Step 7. Slowly open the Main Control
Valve. Close the Main Drain Valve as
soon as water discharges from the
drain connection. Observe the Auto-
matic Drain Valve for leaks.
If there are leaks, determine/correct the
cause of the leakage problem.
If there are no leaks, the DV-5 Preac-
tion Type A Valve is ready to be placed
in service and the Main Control Valve
must then be fully opened.
Quarterly Solenoid Valve
Test Procedure for
Pneumatic Actuation Loop
(Detection Failure)
Proper operation of the Solenoid Valve
must be verified at least quarterly as
follows:
Step 1. Close the Main Control Valve.
Step 2. Open the System Drain Valve.
Step 3. Test the deluge releasing panel
in accordance with the manufacturer’s
instructions to de-energize the Sole-
noid Valve.
Step 4. Verify that the flow of water
from the Dry Pilot Valve drain connec-
tion increases to a full flow.
Step 5. Verify that the Diaphragm
Chamber pressure has decreased
to below 25% of the water supply
pressure.
Step 6. Reset the electric detection
system in accordance with the manu-
facturer’s instructions to energize the
Solenoid Valve. Check the Dry Pilot
Valve drain for leaks. Correct any leaks
before proceeding to the next step.
DELUGE VALVE
RELEASING PANEL
(AUTOMATIC
CONTROL UNIT
WITH BATTERY
BACK-UP)
ALARM
TEST VALVE
(NORMALLY
CLOSED)
WATER
SUPPLY
PRESSURE
GAUGE
POWER
SUPPLY
(TYPICALLY
230 VOLTS AC)
DIAPHRAGM CHAMBER
SUPPLY CONTROL VALVE
(NORMALLY OPEN)
MODEL FSV-1
FAIL-SAFE VALVE
(NORMALLY CLOSED)
WATERFLOW
PRESSURE
ALARM
SWITCH
TO
MECHANICAL
ALARM
AUTOMATIC
DRAIN VALVE
MAIN
DRAIN VALVE
(NORMALLY
CLOSED)
SYSTEM AIR
PRESSURE
GAUGE
SYSTEM
PRESSURE
GAUGE
SYSTEM
DRAIN VALVE
(NORMALLY
CLOSED)
WATER
SUPPLY
MAIN SUPPLY CONTROL/
SHUT-OFF VALVE
(NORMALLY OPEN)
AIR SUPPLY
CONTROL VALVE
(NORMALLY
OPEN)
ALARM
CONTROL
VALVE
(NORMALLY
OPEN)
MODEL DP-1
DRY PILOT
ACTUATOR
(NORMALLY
OPEN)
DV-5
DELUGE
VALVE
MODEL
CV-1FR
CHECK
VALVE
PNEUMATIC
ACTUATION
SOLENOID VALVE
(TYPICALLY 24 VOLTS DC,
NORMALLY OPEN;
ENERGIZED TO
CLOSE)
CONTROL VALVE
(NORMALLY OPEN)
AUTOMATIC
AIR/NITROGEN
SUPPLY
LOCAL
HYDRAULIC
MANUAL PULL
STATION
DIAPHRAGM
CHAMBER
PRESSURE
GAUGE
SYSTEM
ACTUATION
SOLENOID VALVE
(TYPICALLY
24 VOLTS DC,
NORMALLY
CLOSED)
LOW AIR
PRESSURE
ALARM SWITCH
ACTUATION LOOP
DRAIN VALVE
(NORMALLY
CLOSED)
SYSTEM PIPING WITH AUTOMATIC SPRINKLERS - NORMALLY DRY
RESTRICTION
STRAINER
STRAINER
FIGURE 6
DV-5 PREACTION TYPE A VALVE
FUNCTIONAL SYSTEM SCHEMATIC
OBSOLETE