
2322
4. Placement & Anchoring
The Reliable PrePaK™and all interconnected wet piping must be in a readily accessible location that is maintained at a
minimum temperature of 40°F (4°C). Heat tracing is not permitted as an alternative to locating the unit in a conditioned space.
Position the PrePaK™on a hard surface such that full 180° opening of the main door is provided for access. The units are also
provided with access panels on each side. For service and maintenance purposes, consideration should be given to keeping
the sides clear for access.
Where required, the unit can be anchored to the floor using the holes provided. Alternate methods of anchoring the PrePaK™
are acceptable when approved by the authority having jurisdiction.
Optional Seismic Kit: Reliable part number 6501200041 (25” x 28” cabinet for 2” -4” systems without nitrogen generator)
and part number 6501200042 (30” x 33” cabinet for 6” and 8” systems and ALL units with nitrogen generator) are seismic
upgrade kits required to make the Reliable PrePaK compliant with OSHPD Special Seismic Certication Preapproval (SDS(g) =
2.5 and z/h = 1). One kit is required for each PrePaK™; please reference Reliable Caution Sheet 331 for full details.
5. Piping Connections (Refer to Figures 1 & 2)
Verify compatibility of the water supply with the Model DDV valve materials prior to installation. Three pipe connections
(possibly four if units are side by side) are required for each unit:
Water supply—Lower front side (right or left) of unit
Drain—Lower rear side (right or left) of unit
System—Top of unit
Where necessary for the water supply and drain, reverse the outlet access panel (with rubber grommets) and the solid access
panel.
Note that the manifold size supplying the system may not match the system size. It is the customer’s responsibility to conrm
the size of the system supply pipe and provide appropriate transition ttings if necessary.
The drain should be routed to a safe discharge either outside of the building or other location acceptable to the owner and/
or authority having jurisdiction. Closed drain systems must be capable of handling the discharge of a fully opened main drain
valve under full system pressure.
6. Power Supply Connections
For convenience, separate Type SO power cables are provided for the release control panel, air compressor, and nitrogen
generator, where so equipped. These cables are extended through the floor of the unit for eld connection to an approved
permanent power source. A separate circuit is required for each device.
When required by a local electrical code or other authority having jurisdiction, these cables may be removed to the point
of connection on the appropriate device and replaced with approved wiring. Replacement of SO power cords with other
approved power wiring does not affect listing or warranty of the product.
7. Factory Wiring
Based upon the type of system and options selected, some or all the following electrical devices are factory-wired to a
watertight terminal box mounted on the interior of the enclosure:
Potter Electric PFC-4410RC Releasing Control Panel
Main Water Control Valve Tamper Switch
System Side Water Control Valve Tamper Switch
Pneumatic Pressure Supervisory Switch
Water Flow Pressure Alarm Switch
Normally Closed 24VDC Solenoid Valve
Release Control (Solenoid) Disable Switch
Solenoid Release Manual Pull Station
CoilKeeper™Solenoid Coil Supervisory Switch
Nitrogen Generator Controls
When ordered with the Potter PFC-4410 Releasing Control Panel, the power supply, standby batteries, battery charger, and
rectier circuitry are all contained within the panel. Batteries that provide 90 hours of standby power are provided with the
panel. For additional information on the releasing panel, please refer to Potter Manual #5403550 (Installation, Operation,
and Instruction Manual for the PFC4410-RC Releasing Control Panel). A copy of that document is provided with each unit so
equipped.
See Figures 14 through 17 for location and factory electrical connections of these devices.