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7.

ed.  One terminal box contains all of the 24 VDC connections and 
one contains the 120 VAC (or 220 VAC) connections. The diagrams 
illustrating this translation of terminals are shown in Figures 2 and 3.  
The Reliable Model H PrePaK is delivered with five factory-installed 
electrical devices.  They consist of the following:  
1.  A low air, supervisory pressure switch, which is used to monitor 

sprinkler piping.

2.  A waterflow indicating pressure switch.
3.  A releasing solenoid valve.
4.  A 1/6 HP tank-mounted air compressor.
5.  A supervised, slow-close control valve.

The factory electrical connections for these devices are illustrated 

in Figure 4.  For information on how to install fire detection devices to 
Initiating Zones 1 and 2, refer to Figures 5 or 6.  For information on 
how to install output devices, i.e., alarm bells or trouble annunciators, 
refer to Figure 7.  The power supply, standby emergency power 
supply, battery charger and rectifier circuitry are all contained within 
the PFC-4410-RC Panel. Batteries that provide 90 hours of standby 
power are provided with the panel. For additional information and 
detailed wiring diagrams, refer to Potter Manual #5403550, Installa-
tion, Operation and Instruction of PFC-4410-RC Releasing Control 
Panel.

Note:

In order for the solenoid valve to maintain Reliable’s war-
ranty it must remain sealed as it came from the factory. If 
there are concerns about the valve’s internal components, 
immediate replacement is recommended.

System Operation (Single Interlock)

To activate the Reliable Model H 1½” (40mm) PrePaK in a single 

interlock application, an electrical detector (two detectors with cross-
zoned detection) must activate to fill the system with waters. Sub-
sequently, a sprinkler head must open to discharge water on the 
fire. When a fire is detected, the releasing control panel energizes 
the solenoid valve open and water flows from the supply through 
the PrePaK to the system and to the waterflow indicating pressure 
switch.  The valve maintains its open position until the solenoid is 
de-energized.

CAUTION:

 THE SOLENOID VALVE MUST BE MAINTAINED 

OPEN TO PREVENT AUTOMATIC CLOSING OF THE MODEL H 
DELUGE RISER ASSEMBLY. THE POTTER MODEL PFC-4410-
RC RELEASING CONTROL PANEL HAS A LATCHING FEATURE 
FOR THIS PURPOSE. 

After system shutdown and draining, the Model H Riser Assem-

bly is easily reset without special tools. Restore detection devices 
by resetting or replacing any operated device. Once detection de-
vices are restored, reset the releasing control panel (Potter Manual 
#5403550) and the supply pressure (see Bulletin 507, System Op-
eration).

System Operation (Double Interlock) 

To activate the Reliable Model H 1½” (40mm) PrePaK in a double 

interlock application, two independent events must coexist before 
water flow will occur.  A fire detection device must operate and the 
system pressure switch must actuate by reducing the system su-
pervising air pressure (as a result of sprinkler operation).  Operation 
of either one of these items will only cause an alarm to annunciate, 
and will not fill the sprinkler system piping with water.  With coexisting 
initiating signals, one electric and one pneumatic, the control panel 
will now energize the solenoid valve to release water through the 

PrePaK into the system piping and out the open sprinkler for com-
plete operation of the system.

When the releasing control panel energizes the solenoid valve 

open, water flows from the supply through the riser  into the system 
and to the waterflow  indicating pressure switch.  The valve main-
tains its open position until the solenoid is de-energized.

CAUTION:

 THE SOLENOID VALVE MUST BE MAINTAINED 

OPEN TO PREVENT AUTOMATIC CLOSING OF THE MODEL H 
DELUGE RISER ASSEMBLY. THE POTTER MODEL PFC-4410-
RC RELEASING CONTROL PANEL HAS A LATCHING FEATURE 
FOR THIS PURPOSE. 

After system shutdown and draining, the Model H Riser Assem-

bly is easily reset without special tools. Restore detection devices 
by resetting or replacing any operated device. Once detection de-
vices are restored, reset the releasing control panel (Potter Manual 
#5403550) and the supply pressure (see Bulletin 507, System Op-
eration).

Maintenance 

 The Reliable Model H 1½” (40mm) PrePaK and associated equip-

ment shall periodically be given a thorough inspection and test.  
NFPA 25, Inspection, Testing and Maintenance of Water Based Fire 
Protection Systems, provides minimum maintenance requirements. 
Systems should be tested, operated, cleaned and inspected at 
least annually, and parts replaced as required.  Periodically, open 
the bleeder valve on the compressor tank to drain any condensate 
accumulation. Refer to Bulletin 507 for information regarding main-
tenance of the solenoid valve and the manual emergency station 
valve.  Bulletin 251 provides information on the Model A-2 Pressure 
Maintenance Device. Bulletin 806 describes the Model G Right-
Check™ Valve.  Potter Manual #5403550 describes the PFC-4410-
RC Releasing Control Panel.

Resetting Single Interlock Systems 

Refer to Figure 1.
1.  Close the supervised valve controlling water supply to the Mod-

el H Riser Assembly and shut off the system air supply at the 
Model A-2 Device.

2.  Open all drain valves and the manual emergency station valve 

to drain the system through the riser assembly.

3.  Open any low point drain valves and vents throughout the sys-

tem, closing all drain valves and vents when draining of water 
has stopped. 

4.  Inspect and replace any portion of the sprinkler system and de-

tection system exposed to fire conditions. Reset detectors and 
PFC-4410-RC Releasing Control Panel.  The PFC-4410-RC is 
reset by pushing the “System Reset” button.  This action will 
also close (reset) the solenoid valve. 

5.  Reset the Model H Riser Assembly in accordance with Bulletin 

507, Model H Deluge Riser Assembly Instructions for Installa-
tion, Operation, Care and Maintenance.

6.  Restore the system supervising pressure to approximately 10 

psi (0.7 bar) by opening the valves on the Model A-2 Pressure 
Maintenance Device (refer to Bulletin 251) and adjusting the 
regulator, as required.

7.  Verify that the supervised control valve is open, and proper 

monitoring has been restored. Also verify there is no leakage 
from the automatic drain valve, thereby confirming that supply 
water is not leaking into the system.

Summary of Contents for H PrePak

Page 1: ...iew Park Drive Elmsford New York 10523 ModelHPrePak PreactionSystem 1 40mm Bulletin 723 Rev H Bulletin723Rev H Instructionsfor Installation Operation CareandMaintenance 10 PSI 0 7 bar Pneumatic Supervising Pressure SingleInterlock DoubleInterlock ...

Page 2: ...e operation of two detectors before the solenoid valvecanopen Note Cross zoneddetectionsystemsarenotper mittedinNewYorkCityandarenotFactoryMutualApproved The solenoidvalve whenclosed ispreservingsupplywaterpressurein theinletoftheReliableModelHDelugeRiserAssembly Actuating the solenoid valve releases that water pressure allowing water flow into the sprinkler system in readiness for the subsequent ...

Page 3: ...Figure1 InstallationDimension 3 ...

Page 4: ...e steel enclosure and all interconnecting piping must be locat edinareadilyvisibleandaccessiblelocationandinanareathatcan bemaintainedataminimumtemperatureof40 F 4 C Note Heat tracingisnotpermitted ThesolenoidvalveisoperatedandsupervisedbythePotterElec tricReleasingControlPanel Detailsontheelectricalconnectionsof thissystemtoaPotterModelPFC 4410 RCReleasingControlPanel canbyfoundinPotterManual 540...

Page 5: ...YSTEM TBL SUP TBL GROUND FAULT SUP 1 ABORT SUPERVISORY 2 COMMON ALARM ALARM SILENCE STEADY DISCHARGED FLASHING PRE DISCHARGE RUN PROGRAM SET SELECT FUNCTION SCROLL DOWN BUZZER SILENCE SIGNAL SILENCE SYSTEM RESET SCROLL UP BUZZER SILENCE VIEWING ANGLE RED OUTPUT LED STEADY ABORT LAMP TEST Figure2 WiringDiagram ...

Page 6: ...6 Figure3 WiringDiagram ...

Page 7: ... annunciate andwillnotfillthesprinklersystempipingwithwater Withcoexisting initiating signals one electric and one pneumatic the control panel will now energize the solenoid valve to release water through the PrePaK into the system piping and out the open sprinkler for com pleteoperationofthesystem When the releasing control panel energizes the solenoid valve open water flows from the supply throu...

Page 8: ...te gauges There should be no pressure reading on the water gauge directly above the manual emer gencyreleasingstationwhenthesystemisproperlyreset Resetting Double Interlock Systems Refer to Figure 1 1 ClosethesupervisedvalvecontrollingwatersupplytotheMod el H Riser Assembly and shut off the system s air supply at the ModelA 2Device 2 Openalldrainvalvesandthemanualemergencystationvalve todrainthesy...

Page 9: ...E AC POWER POWER TBL SYSTEM TBL SUP TBL GROUND FAULT SUP 1 ABORT SUPERVISORY 2 COMMON ALARM ALARM SILENCE STEADY DISCHARGED FLASHING PRE DISCHARGE RUN PROGRAM SET SELECT FUNCTION SCROLL DOWN BUZZER SILENCE SIGNAL SILENCE SYSTEM RESET SCROLL UP BUZZER SILENCE VIEWING ANGLE RED OUTPUT LED STEADY ABORT LAMP TEST ...

Page 10: ...Figure5 WiringDiagram 10 ...

Page 11: ...11 Figure6 WiringDiagram ...

Page 12: ...Figure7 WiringDiagram 12 ...

Page 13: ... 4 Low Air Supervisory 1 ALARM X X 2 WATERFLOW X 3 SUPERVISORY X X 4 RELEASE X X INPUT 1 conventional zone 1 manual release zone 1 waterflow zone 1 low air zone 1 supervisory zone OUTPUT 1 general alarm bell 1 waterflow bell 1 supervisory bell 1 solenoid release circuit OPERATION Activation of either the conventional zone or the manual release will operate the solenoid release circuit and the gene...

Page 14: ...14 Figure8 WiringDiagram ...

Page 15: ...ell 1 solenoid release circuit OPERATION Activation of both conventional zones at the same time will operate the solenoid release circuit and the general alarm bell Activation of either conventional zone will operate the general alarm bell Activation of the waterflow zone will operate the waterflow bell Activation of either the low air zone or the supervisory zone will operate the supervisory bell...

Page 16: ...16 Figure9 WiringDiagram ...

Page 17: ...nd the low air alarm zone at the same time will operate the solenoid release circuit and the general alarm bell Activation of the conventional zone only will operate the general alarm output Activation of the low air supervisory zone will operate the bsupervisory bell output Activation of the waterflow zone will operate the waterflow bell output Activation of the low air alarm zone will operate th...

Page 18: ...18 Figure10 WiringDiagram ...

Page 19: ... OPERATION Activation of both conventional zones and the low air alarm zone at the same time will operate the solenoid release circuit and the general alarm bell Activation of either conventional zone only will operate the general alarm output Activation of the waterflow zone will operate the waterflow bell output Activation of the low air alarm zone will operate the supervisory bell output It wil...

Page 20: ...Figure6 DoubleInterlockPreaction ComponentIdentification 20 ...

Page 21: ...on until the display reads ZONE 3 OUTPUTS 18 Press the SELECT button The 1 should appear under the v 19 Press the SET button twice The panel is completely pro gramed except for the custom banner and zone messages If thesemessagesarenotdesired thenslidetheprogramswitch backup INPUTS 1 conventional zones 1 manual release zone 1 waterflow zone 1 low air zone 1 supervisory zone OUTPUTS 1 general alarm...

Page 22: ...22 Figure12 WiringDiagram ...

Page 23: ...SERVICE MAY ELIMINATE THE FIRE PROTECTION OF THAT SYS TEM PRIOR TO PROCEEDING NOTIFY ALL AUTHORITIES HAVING JURISDICTION CONSIDERATION SHOULD BE GIVEN TO EMPLOYMENT OF A FIRE PATROL IN THE AFFECTED AREA WARNING PRIOR TO OPERATING THE SOLENOID VALVE BE SURE TO CLOSE THE SYSTEM CONTROL VALVE TO AVOID UNINTENTIONAL OPERATION OF THE DELUGE VALVE 1 Inspections It is imperative that the system be inspec...

Page 24: ...sh automatic sprinklers Recessed automatic sprinklers Concealed automatic sprinklers Adjustable automatic sprinklers Dry automatic sprinklers Intermediate level sprinklers Open sprinklers Spray nozzles Alarm valves Retarding chambers Dry pipe valves Accelerators for dry pipe valves Mechanical sprinkler alarms Electrical sprinkler alarm switches Water flow detectors Deluge valves Detector check val...

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