Specifications

30.
7. Inspect and replace any portion of the detection system
and/or sprinkler system subjected to fire conditions.
8. Open valve A (Fig. 15) and allow water to fill the push rod
chamber. Close valve D (Fig. 15).
9. Bleed all air from the actuation piping.
A. Wet Pilot Line Single Interlock Preaction Trim—bleed
the entire wet pilot line until all air is removed at the
most remote sprinkler.
B. Electric Actuation Single Interlock Preaction Trim—
open the solenoid valve by operating a detector or
an electric manual emergency station. While water is
flowing through the solenoid valve, cause it to close
using the release control panel reset.
C. Dry Pilot Line Single Interlock Preaction Trim—open
valve D (Fig. 15) allowing water to flow through the
pilot line actuator. When all air has been expelled from
the release line, and there is a solid flow of water into
the drain cup H (Fig. 15), apply compressed air or
nitrogen through the pressure maintenance device to
close the pilot line actuator. Subsequently, close valve
D (Fig. 15) or (#7, Fig. 7 or #7, Fig. 8) and adjust the
air or nitrogen pressure to the appropriate value in
Table A as indicated on air pressure gauge (#72, Fig.
7 or #71, Fig. 8).
10. Close valve F (Fig. 15). Open the valve to restore air pres-
sure in the sprinkler system. Note: To build supervisory
air pressure in the sprinkler system, it may be neces-
sary to temporarily close the main drain valve, valve
B until air pressure has built up to the manufacturers
recommended levels.
11. Open valve F (Fig. 15). Verify the main drain valve, valve
B is open. Open slightly the main valve controlling water
supply (Fig. 15) to the Model DDX Deluge Valve, closing
drain valve B (Fig. 15) when water flows. Observe if water
leaks through the ball drip valve, valve G (Fig. 15), into the
drip cup, H (Fig. 15). If no leak occurs, the Deluge Valve’s
clapper is sealed. Open slowly and verify the main valve
controlling water supply is fully opened and properly moni-
tored.
12. Verify that valve A (Fig. 15) and valve F (Fig. 15) are open.
Valve A (Fig. 15) must remain open when the Deluge
Valve has been reset, to maintain water pressure in the
push rod chamber.
13. Verify that the Model B Manual Emergency Station, valve D
(Fig. 15) is secured in the OFF position with the appropriate
nylon tie (#57, Fig. 7 or #57, Fig. 8) see Fig. 12.
Inspection and Testing
Refer to Figs. 13, 14 & 15.
1. Water supply — be sure the valves controlling water sup-
ply to the Deluge Valve are opened fully and properly moni-
tored.
2. Alarm line — be sure that valve F (Fig. 15) is opened and
remains in this position.
3. Other trimming valves — check that valve A (Fig. 15)
is open, as well as all of the pressure gauge’s ¼“ 3-way
valves. Valves D, E & J (Fig. 15) should be closed.
4. Ball drip valve G (Fig. 15) — Make sure valve F (Fig. 15) is
open. Push in on the plunger to be sure ball check is off its
seat. If no water appears, the Deluge Valve’s water seat is
tight. Inspect the bleed hole (see Fig. 13 or Fig. 14) on the
underside of the push rod chamber for leakage.
5. Dry pilot trim — check air gauge pressure for confor-
mance to Table A.
6. Wet pilot and Electric Actuation trim — check that sys-
tem air pressure is approximately 7 psi (0,5 bar). Check
the pressure maintenance device for leakage and proper
pressure.
7. Releasing device — check outlet of the releasing device
(i.e., the dry pilot line actuator, solenoid valve, or the hydrau-
lic manual emergency station) for leakage. Also verify that
tubing drain lines from releasing devices are not pinched or
crushed which could prevent proper releasing of the Del-
uge Valve.
8. Testing alarms — Make sure valve F (Fig. 15) is open.
Open valve J (Fig. 15) permitting water from the supply to
flow to the electric sprinkler alarm switch and to the me-
chanical sprinkler alarm (water motor). After testing, close
this valve securely. Push in on the plunger of ball drip valve
G (Fig. 15) until all of the water has drained from the alarm
line.
9. Operation test — Open the Model B Manual Emergency
Station, valve D (Fig. 15).
Note: An operational test will cause the Deluge Valve to
open and flow water into the sprinkler system.
10. Secure the Model B Manual Emergency Station, valve D
(Fig. 15), in the OFF position with nylon tie after Deluge
Valve is reset (see Fig. 12).
Testing Detection System Without Operating
Deluge Valve
Refer to Figs. 7, 8 & 15.
1. Close the valve controlling water supply to Deluge Valve
and open the main drain valve B (Fig. 15).
2. Verify that valve A (Fig. 15) is open, allowing water to enter
the push rod chamber.
3. Operate detection system —
A. Wet Pilot Line Single Interlock Preaction Trim—open
Model B Manual Emergency Station, valve D (Fig.
15).
B. Dry Pilot Line Single Interlock Preaction Trim—directly
above the Model LP Dry Pilot Line Actuator, remove
the ¼” pipe plug (#58, Fig. 7 or #58, Fig. 8) and open
the ¼” three-way valve (#71, Fig. 7 or #70, Fig. 8) until
the Model LP actuator operates. This will be indicat-
ed by a sudden drop in water pressure on the Deluge
Valve’s pushrod chamber gauge. The operation of
the actuator will vent the pushrod chamber of the Del-
uge Valve and cause the valve’s clapper to open.
C. Electric Actuation— energize the solenoid valve by
operating a detector (or detectors if cross-zoned).
4. Operation of the detection system must result in a sudden
drop of water pressure in the push rod chamber.