Reliable DDX PrePaK Instructions For Installation, Operation Care And Maintenance

Instructions for
Installation, Operation,
Care and Maintenance
8 psi - 24 psi (0.6 bar - 1.7 bar) Recommended Supervisory Pressure
Reliable Automatic Sprinkler Co., Inc., 103 Fairview Park Drive, Elmsford, New York 10523
Model DDX PrePaK™, Type F
Preaction System
2" (50mm), 2
1
4" (100mm), 6" (150mm) & 8" (200mm)
Double Interlock
Electric/Pneumatic Release
General Description
The Reliable Type F Model DDX PrePaK system is a com-
pletely self-contained, supervised preaction system that can be
readily installed within a floor space of less than 7.5 square
feet ( 0.70 square meters) (not including door swing). Refer to
Fig. 1 for cabinet dimensions. Installation of the PrePaK system
(not including exterior devices, i.e., detectors and alarm bells),
requires just three piping connections. These connections are
the water supply, the sprinkler system and the drain. Refer-
ence locations of these piping connections are shown in Fig.
1. Two electrical supply connections are required. Note: The
Model DDX PrePaK system is available with an optional 115V
VAC (60Hz) air compressor and an optional Potter Model PFC-
4410-RC Releasing/Control panel wired for a 120 VAC (50Hz)
or 220 VAC (50/60Hz) power supply.
Full assembly drawings for the units are available on the Reli-
able Automatic Sprinkler Company website (www.reliablesprin-
kler.com)
The Reliable Type F PrePaK system utilizes an optional Potter
Model PFC-4410-RC Releasing/Control Panel. This fully pro-
grammable, microprocessor-based releasing panel is Under-
writers Laboratories, Inc. Listed and is in compliance with NFPA
13 and NFPA 72. Because the PFC-4410-RC is totally zone
and output programmable, the Reliable Type F PrePaK system
can be utilized in many different preaction applications without
having to rewire any of the factory installed devices. Once the
previously described connections are completed, the 24 VDC
detectors, output devices, and relay contacts may be connect-
ed to achieve the desired system implementation.
The Type F PrePaK system is designed specifically for double
interlock applications. Reliable double interlock preaction sys-
tems are designed for water sensitive areas that require protec-
tion from inadvertent water flow into the sprinkler system piping.
The major benefits of a double interlock preaction System,
when compared with a wet pipe system, are as follows:
A. A fire alarm sounds prior to the flow of water from a
sprinkler, which may enable extinguishment of the
fire by handheld means before the operation of any
sprinkler occurs.
Bulletin 747 May 2021
/
" (65mm), 3" (80mm),
2