Reliable DDX-LP PrePak Instructions For Installation, Operation Care And Maintenance page 6

12. Open the alarm line valve.
13. If the Model B1 Accelerator Kit is installed, open valve
P. Prior to opening valve P, be sure that the Model B1
Accelerator has been successfully reset per Reliable
Technical Bulletin 323.
Note: The B1 Accelerator requires a minimum of 15
psi (1,0 bar) supervisory air or nitrogen pressure for
proper operation.
14. Slightly open the main valve controlling water supply
to the Model DDX-LP PrePak Deluge Valve. This will
begin to fill the deluge valve beneath the clapper with
water. Once any trapped air has been vented, close
the main drain valve. Observe if water leaks through
the ball drip valve into the 1" drain manifold through
the clear tubing. If no leakage occurs, the deluge
valve clapper is sealed. Fully open the main valve
controlling the water supply to the Model DDX-LP Pre-
Pak Deluge Valve and that it is properly monitored
15. Verify that the pushrod chamber supply valve is open.
16. Secure the handle of the Model B Manual Emergency
Station in the OFF position with a nylon tie (supplied
with the assembly).
Inspection And Testing Of The DDX-LP PrePak
Systems (Refer to Figure 2)
1. Water supply — Verify that the valve controlling water
supply to the deluge valve is opened fully and properly
monitored.
2. Pushrod Chamber supply — Verify that the valve sup-
plying water to the pushrod chamber is open.
3. Other trimming valves — Verify that the alarm line valve
is open as well as all of the pressure gauge valves. The
main drain valve, alarm test valve, and condensate
drain valve should be closed.
4. Ball drip valve — 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 small bleed hole
located on the underside of the Model DDX-LP PrePak
Deluge Valve pushrod chamber for leakage.
5. System air pressure — Verify that system air pressure
is in conformance with the values posted in Table A for
the supply water pressure.
6. Releasing device — Check the outlet of the (Model LP
Dry Pilot Actuator and Model B Manual Emergency Sta-
tion) for leakage. Also verify that tubing drain lines from
releasing devices are not pinched or crushed which
could prevent proper releasing of the deluge valve.
7. Testing alarms — Open the alarm test valve permit-
ting water from the supply to flow to the alarm pressure
switch and to the mechanical sprinkler alarm (if pres-
ent). After testing, close this valve completely. Push
in on the plunger of ball drip until all of the water has
drained from the alarm line.
8. Operational test — Open the Model B Manual Emer-
gency Station or, alternatively, reduce air/nitrogen pres-
sure on the system. Note: An operational test will cause
the Deluge Valve to open and flow water into the sprin-
kler system.
9. Secure the Model B Manual Emergency Station in
the OFF position with a nylon tie (included with the as-
sembly) after the deluge valve is reset.
Testing the Model DDX-LP PrePak Deluge
Valve Without Flowing Water (Refer to Fig-
ure 2)
1. Close the valve controlling water supply to deluge valve
and open the main drain.
2. Verify that the pushrod chamber supply valve is open,
allowing water to enter the pushrod chamber.
3. Close the air/nitrogen supply to the sprinkler system.
4. Decrease pneumatic pressure in the system by opening
the condensate drain valve, until the Model LP Dry Pilot
Actuator operates. Doing so will result in a sudden drop
of water pressure in the deluge valve pushrod chamber.
5. Reset the system per the directions listed in "System
Setup" section of this bulletin.
Draining Excess/Condensate Water From System
1. Close the main valve controlling water supply to the Model
DDX-LP system.
2. Close the pushrod chamber supply valve, and open the
main drain valve.
3. Slightly open the condensate drain valve until all water
has drained, then close.
Note: Leaving the condensate drain open for an extended
period of time may allow excess air/nitrogen to bleed off and
result in accidental release of the Model LP Dry Pilot Actua-
tor and/or the Model DDX-LP valve.
4. Close the main drain valve. Allow the system air/nitrogen
pressure to return to its previous level. Open the pushrod
chamber supply valve first, and then open the main valve
controlling water supply to the system.
6.