Reliable N2-Blast DDX, Instructions For Installation, Operation Care And Maintenance

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4.
3. Shipping Weight:
System Size Weight
2” (50mm)
950 lbs (431 kg) 2-1/2” (65mm)
3” (80mm)
4” (100 mm) 1075 lbs (488 kg)
4. Please reference Figure 1 for dimensions.
The following is a list of Technical Data Bulletins which describe
the valves and devices which are used in the system:
Device
Reliable Bulletin #
(unless otherwise noted)
Model DDX Deluge Valve Reliable Bulletin 519
Type D Double Interlock Preaction Trim Reliable Bulletin 750
Low Air Pressure Switch Potter 5400928
Alarm Pressure switch Potter 5400928
Releasing Control Panel Potter Manual #5403550
The following table provides a quick reference to various pro-
grams (found in this bulletin and the Potter Manual #5403550) that
may be utilized with a Model DDX PrePaK system:
Desired Application Program
Single Interlock,
Single Zone
Potter Program #6
(Factory Setting)
Potter Program #7
Single Interlock,
New York City
Custom NYC Program
Double Interlock,
Single Zone
Potter Program #9
Double Interlock,
Cross Zoned
Potter Program #10
*Note: Factory Program setting.
Installation Requirements
The automatic sprinklers, releasing devices, fire detection
devices, manual pull stations, and signaling devices which
are utilized with the Reliable Model DDX Type D PrePaK sys-
tem must be UL and/or ULC Listed or FM Approved, as ap-
plicable.
The steel enclosure and all the interconnecting piping
must be located indoors in a readily visible and accessible
location and in an area that can be maintained at a mini-
mum temperature of 40°F (4°C).
Note: Heat tracing is not
permitted. The solenoid valve is operated and supervised
by the Potter Model PFC-4410-RC Releasing Control Panel.
Details on the electrical connections of this system to the
Potter Panel can be found in the Potter Manual #5403550,
Installation, Operation and Instruction of PFC-4410-RC Re-
leasing Control Panel (this manual is included with other
pertinent manuals and shipped inside the enclosure). This
panel is fully zone and output programmable and may be
adapted to several applications.
Optional Seismic Kit
Reliable part number 6501200041 (25” x 28” cabinet for 2”
-4” systems without nitrogen generator) and 6501200042 (30”
x 33” cabinet for 6” and 8” systems, and all units with nitrogen
generator) are seismic upgrade kits required to make the Re-
liable PrePaK OSHPD compliant. One kit is required for each
PrePaK (reference Caution Sheet 331).
System Supervising Pressure Requirements
In accordance with NFPA 13, when using the Reliable
Model DDX Type D PrePaK system in double interlock ap-
plications, a minimum of 7 psi (0.5 bar) pneumatic pressure
is required to supervise the sprinkler system. When initially
filling the system with air, the enclosure’s door should re -
main open in order to provide maximum intake air flow to
the air compressor. The air compressor is connected to an
ASME rated storage tank. This tank functions as a reser-
voir, providing make-up air to compensate for small, inter-
mittent leaks in the sprinkler system. It should be noted that
significant leaks may overburden this storage tank, thereby
causing the air compressor to continuously cycle on and off.
The Pressure Maintenance Device supplied with the sys-
tem is factory set to maintain system pneumatic pressure
at approximately 10 psi (0.7 bar). Readjusting system pres-
sure to approximately 10 psi (0.7 bar), if necessary, is ac-
complished by first loosening the locknut on the air pressure
regulator and turning the adjustment screw. The system air
pressure gauge that is attached to the vertical pipe/manifold
(mounted directly above the Model DDX Deluge Valve) may
be used to verify the correct level of pneumatic pressure.
The system air pressure switch is factory set to operate
between 8 psi and 4 psi (0.6 bar and 0.3 bar) with decreas-
ing pressure.
System Electrical Requirements
All releasing, alarm, and detection devices in the Reli-
able Model DDX Type D PrePaK system are supervised by
a Potter Model PFC-4410-RC Releasing Control Panel. All
of the terminals are translated to a water-tight terminal box
mounted on the interior of the enclosure. All field wiring
is connected to this terminal box. Note: The EOL (End of
Line) resistors have also been relocated.
The Reliable Model DDX PrePaK system is delivered with
six factory-installed electrical devices. They consist of the
following:
1. A system air pressure switch, which is used to monitor
sprinkler piping.
2. An alarm pressure switch, which indicates an actuation
of the deluge valve.
3. A normally-closed, releasing solenoid valve, which is
used to actuate the deluge valve.
4. A 1/2 HP (2”, 2-1/2”, & 3” valve), or 1 HP (4” valve) air
compressor with tank.
5. A supervised butterfly (main control) valve ( Note: A
system side butterfly valve is available as an option).
6. A release control disable switch (RCDS) which is used
to disable the solenoid valve for test purposes.