Instruction manual

11.
Bleed any air from the actuation piping by energiz-
ing the solenoid valve. This is done by operating a
detector or an electric manual emergency station.
While water is flowing through the solenoid valve,
cause it to close. Refer to Bulletin 700, “Special Haz-
ards & Special Systems” for details.
Note: All detection devices must be reset before the
releasing/control panel can be reset.
Close valve G (Fig. 6). Open the valve to restore air
pressure in the sprinkler system.
Open valve G (Fig. 6). Open slightly the main valve
controlling water supply (Fig. 6) to the Model DDX
Deluge Valve, closing drain valve B (Fig. 6) when
water flows. Observe if water leaks through the ball
drip valve, valve E (Fig. 6), into the drip cup, J (Fig.
6). If no leak occurs, the Deluge Valve’s clapper is
sealed. Open slowly, and verify that the main valve
controlling water supply is fully opened and properly
monitored.
Verify that valve A (Fig. 6) and valve G (Fig. 6) are
open.
Secure the handle of the Model B Manual Emergen-
cy Station, valve D (Fig. 6), in the OFF position with a
nylon tie (#66, Fig. 2).
Inspection and Testing
Refer to Figs. 2, 5, and 6.
Water supply — be sure the valve(s) controlling wa-
ter supply to the Deluge Valve are opened fully and
properly monitored.
Alarm line — be sure that valve G (Fig. 6) is opened
and remains in this position.
Other trimming valves — check that valve A (Fig.
6) is open as well as all of the pressure gauge’s ¼”
3-way valves. Valves D, F, and H (Fig. 6) should be
closed.
Ball drip valve E (Fig. 6) — make sure valve G (Fig.
6) is open. Push in on the plunger to be sure the ball
check is off its seat. If no water appears, the Deluge
Valve’s water seat is tight. Inspect the bleed hole
(see Fig. 5) on the underside of the push rod cham-
ber for leakage.
System pneumatic pressure — check that system
air pressure is approximately 35 oz/in
2
(2.2 psi or 0,2
bar). Check the pressure maintenance device for
leakage and proper pressure.
Releasing device — check outlet of the releasing
device (i.e., solenoid valve or the Model B Manual
Emergency Station, valve D (Fig. 6)) for leakage.
Also verify that tubing drain lines from releasing de-
vices are not pinched or crushed which could pre-
vent proper releasing of the Deluge Valve.
Testing alarms — make sure valve G (Fig. 6) is
open. Open valve F (Fig. 6) permitting water from the
supply to flow to the electric sprinkler alarm switch
and to the mechanical sprinkler alarm (water motor).
After testing, close this valve securely. Push in on
the plunger of ball drip valve E (Fig. 6) until all of the
water has drained from the alarm line.
9.
10.
11.
12.
13.
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4.
5.
6.
7.
Operational test — Open the Model B Manual Emer-
gency Station, valve D (Fig. 6), or operate by electri-
cal actuation (refer to Bulletin 700, “ Special Hazards
& Special Systems” for details). Note: An opera-
tional test will cause the Deluge Valve to open and
flow water into the sprinkler system.
Secure Model B Manual Emergency Station, valve D
(Fig. 6), in the OFF position with a nylon tie (#66, Fig.
2) after the Deluge Valve is reset.
Testing the Model DDX Deluge Valve With-
out Flowing Water
Refer to Fig. 6
Close the valve controlling water supply to Deluge
Valve and open the main drain valve B.
Verify that valve A is open, allowing water to enter the
push rod chamber.
Operate detection system – energize the solenoid
valve by operating a detector (refer to Bulletin 700,
“Special Hazards & Special Systems” for details).
Operation of the detection system will result in a sud-
den drop of water pressure in the push rod cham-
ber.
Reset detection system — reverse operations per-
formed in step three above and then proceed ac-
cording to the directions listed in the “Resetting the
Single Interlock Preaction System” section of this bul-
letin for resetting the Deluge Valve.
Draining Excess/Condensate Water From
System
Refer to Fig. 6
Close the main valve controlling water supply to Del-
uge Valve. Also close valve A and open main drain
valve B.
Open condensate drain valve H until all water has
drained. Close valve H. Note: Be sure not to keep
valve H open for an extended period of time because
that will cause enough system air to bleed off thereby
causing an undesirable activation of a trouble-an-
nunciating device.
Close main drain valve B. If system contains pres-
surized air, allow air pressure to come back up to
specification. Open valve A first, and then open the
main valve controlling the water supply to the Deluge
Valve.
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