Reliable H PrePak, Instructions For Installation, Operation Care And Maintenance

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4.
2. A minimum of two (2) detectors must be installed for each zone
in the protected area.
3. Only Class A method of wiring detectors shall be used.
For Double-Interlock Preaction Systems:
1. Are required for freezer or refrigerated room applications, or
where conditions will allow water to freeze in the system piping
prior to sprinkler actuation.
2. Cross-zoning of preaction system detectors is prohibited, ex-
cept where used as a secondary system to a gaseous sup-
pression system.
3. A minimum of two (2) detectors must be installed for each zone
in the protected area.
4. Only Class A method of wiring detectors shall be used.
*
Electrical devices and control panel must be specified to
meet Canadian requirements. This option is available.
Note:
Although PrePak units are UL Listed, custom built units are
sometimes supplied upon request. The components within these
special units maintain their individual Listings, whereas the assem-
bled units do not.
PrePak units are also available without their door-mounted Potter
PFC-4410-RC Releasing/Control Panel and Air Compressor. These
units will still retain their Listings, however the installing contractor
should make sure that any remote controlled Releasing/Control Pan-
els used with these units are Listed and programmed to handle the
required sequence of operation necessary to operate the automatic
sprinkler system.
Any unauthorized modification or addition made on-site to a fac-
tory built Listed unit will void the Listing. Such modifications or addi-
tions may void the units warranty as well. Consult Reliable’s Techni-
cal Services Department before proceeding with such modifications
or additions.
Technical Data
The Reliable Model H 1½” (40mm) PrePaK is rated for a minimum
supply pressure of 20 psi (1.4 bar) and a maximum supply pressure
of 175 psi (12 bar).
Friction loss, expressed in equivalent length of Sch. 40 pipe and
based on Hazen-Williams formula with C=120 and a flowing velocity
of 15 ft/s (4.6m/s), is 36 ft. (11m). This friction loss value includes all
components of the Model H Riser Assembly and Model G Right-
Check™ Check Valve.
Shipping Weight: 460 lbs. (209 kg)
Enclosure Dimensions: 64” H x 24” W x 27” D
(162.6cm H x 61cm W x 68.6cm D)
The following is a list of Technical Data Bulletins which describe the
valves and devices which in this system:
Deluge Valve 507
Right-Check™ Riser Valve 806
Low Air Pressure Switch 5400928 (Potter)
Hydraulic Emergency Station 506
Mechanical Sprinkler 612/613
Solenoid Valve 718
Water Flow Pressure Alarm 5400928 (Potter)
Pressure Maintenance Device 252
Releasing Control Panel (Potter Manual #5403550)
Detectors 722
Fire Alarm Devices 700
System Design Considerations
The automatic sprinklers, releasing devices, fire detection devices,
manual pull stations, and signaling devices which are utilized with
the Reliable Model H 1½” (40mm) PrePaK must be UL and/or ULC
Listed, as applicable.
The steel enclosure and all interconnecting piping must be locat-
ed in a readily visible and accessible location and in an area that can
be maintained at a minimum temperature of 40°F (4°C).
Note:
Heat
tracing is not permitted.
The solenoid valve is operated and supervised by the Potter Elec-
tric Releasing Control Panel. Details on the electrical connections of
this system to a Potter Model PFC-4410-RC Releasing Control Panel
can by found in Potter Manual #5403550, Installation, Operation and
Instruction of PFC-4410 Fire Alarm/Releasing Panel (this manual is
included with other pertinent manuals and shipped inside the enclo-
sure). This panel is fully zone and output programmable and may
be adapted to several applications. The following table provides a
quick reference to various programs (found in this Bulletin and Potter
Manual #5403550) that may be utilized with the Model H PrePaK:
Desired
Application (1)
Description Program No.
Single Interlock
Single Hazard, 2 Alarm Zones
with 1 Waterflow Zone and 2
Supervisory Zones
Potter Program #6
Custom Program
#1 (NYC)
Single Interlock,
Cross-Zoned
Single Hazard, Cross-Zoned, 2
Alarm Zones with 1 Waterflow
Zone and 2 Supervisory Zones
Potter Program
#7
(2)
Double Interlock,
2 Independent
Events
Single Hazard, 2 Alarm Zones
with 1 Waterflow Zone and 1
Supervisory Zone
Potter Program
#9
Double Interlock,
Cross-Zoned
3 Independent
Events
Single Hazard, Cross-Zoned, 3
Alarm Zones with 1 Waterflow
and 1 Supervisory Zone
Potter Program
#10
(1)
Refer to Potter Manual #5403550, included with the
PrePaK, for other programming options.
(2)
Factory Program Setting.
System Supervising Pressure Requirements
In accordance with NFPA 13 (1996), when using the Reliable
Model H 1½” (40mm) PrePaK in double interlock applications, a
minimum of 7 psi (0,5 bar) pneumatic pressure is required to super-
vise the sprinkler system. When initially filling the system with air, the
enclosure door should remain open to provide maximum air flow
to the compressor. The Model A-2 Pressure Maintenance Device,
supplied with the system, is factory set to maintain system pneu-
matic pressure at approximately 10 psi (0.7 bar).
Readjusting system pressure to approximately 10 psi (0.7 bar) is
accomplished by referring to Reliable Bulletin 251 for adjustment
procedure. The low pneumatic pressure supervisory switch is
factory set to operate between 8 and 4 psi (0.6 bar to 0.3 bar) with
decreasing pressure. Adjustment, if required, should be made ac-
cording to Potter Bulletin 5400928 included with the switch.
System Electrical Requirements
All releasing, alarm, and detection devices in the Reliable Model H
1½” (40mm) PrePaK are supervised by a Potter Model PFC-4410-
RC Releasing Control Panel. To utilize the door of the steel enclosure
as a mount for the releasing control panel, all of the terminals are
translated to two water-tight terminal boxes mounted on the interior
wall of the enclosure.
Note:
The EOL resistors have also been relo-
cated. It is from these terminal boxes that all field wiring is connect-