707 Special Hazard and Special Systems Manual

7/27/2019 707 Special Hazard and Special Systems Manual

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An Informational Manual ForSPECIAL HAZARDS and SPECIAL SYSTEMS

Introduction

This Manual has been prepared by The Reliable Automatic Sprinkler Co., Inc. to provide a source ofinformation with sufficient guidelines that will enable designing and procuring of Deluge (SpecialHazards) and Preaction (Special) Systems for a broad variety of fire protection applications.

This Manual has been assigned Bulletin No. 707 and is complemented in the 700 Series by otherBulletins (708, 710, 712, etc.) which provide instructions for installation, operation and maintenance ofvarious systems.

With reference to the Table of Contents, Section 1 of this Manual describes the features of componentsmanufactured and distributed by Reliable for use in deluge or preaction systems. Various deluge typefire protection systems are presented in Section 2. Section 3 describes preaction systems available fora variety of water sensitive environments. Section 4 contains appendix information, including MasterSubmittal Sheets which can be copied and used to simplify costing or ordering procedures for any of

the systems described in Sections 2 and 3.Hopefully recipients of this Manual will find the information contained in it useful and arranged in a

user-friendly manner. Objectives will be achieved when users find designing, specifying and orderingof Special Hazard Systems or Special Systems to be convenient and trouble free.

Table of Contents

The Reliable Automatic Sprinkler Co., Inc., 525 North MacQuesten Parkway, Mount Vernon, New York 1055201/01

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1. COMPONENT DESCRIPTIONS 5

1.1 Primary Control Valves 5

1.1.1 Diaphragm Differential Deluge Valve 5

1.1.1.1 General 5

1.1.1.2 Operation 5

1.1.1.3 Detection and Actuation 6

1.1.1.4 Valve Description 2½″ (65mm) Model A Deluge Valve 7-8

1.1.1.5 Valve Description 1½″ (40mm) Model H Deluge Riser 9-10

1.1.2 Lever Differential Deluge Valve 11

1.1.2.1 General 11

1.1.2.2 Operation 11


1.1.2.4 Valve Description 13-15

1.1.3 Differential Dry Pipe Valve 16

1.1.3.1 General 16

1.1.3.2 Operation 16


1.2 Control Valve Releasing Devices 16



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The Reliable Automatic Sprinkler Co., Inc., 525 North MacQuesten Parkway, Mount Vernon, New York 10552

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1.2.1 Sprinkler Head (Hydraulic) 16

1.2.2 Dry Pilot Actuator (Pneumatic) 17

1.2.3 Solenoid Valve (Electric) 18

1.2.4 Manual Emergency Pull Station 19

1.2.4.1 Manual Pull Station (Hydraulic) 191.2.4.2 Manual Emergency Station (Electric) 20

1.3 Fire Detection Devices 21

1.3.1 Sprinkler Heads 21

1.3.2 Thermal Detectors 22

1.3.2.1 Fixed Temperature Type with Rate Anticipation 22

1.3.2.2 Rate-of-Rise Type with Fixed Temperature Element 23-24

1.3.3 Smoke Detectors 25

1.3.3.1 Ionization Type 25

1.3.3.2 Photoelectric Type 26

1.3.4 Flame Detectors 27

1.3.4.1 Infrared (IR) Type 27

1.3.4.2 Ultraviolet (UV) Type 27

1.3.4.3 Dual Spectrum (UV-IR) Type 28

1.4 Ancillary Components 29

1.4.1 Electrical Releasing Control Panels 29

1.4.1.1 Single-Area Operation 29

1.4.1.2 Single-Area, Cross-Zoned Operation 29

1.4.1.3 Two-Area Operation 29

1.4.1.4 Model RP-1001 Releasing Panel 29-31

1.4.2 Pneumatic Pressure Equipment 32

1.4.2.1 Dry Pilot Line (20-50 psi, 1,4 - 3,5 bar) 32

1.4.2.1.1 Air Compressors 32-33

1.4.2.1.2 Pressure Maintenance Devices 34-35

1.4.2.2 Supervisory Pressure (1-2 psi, 0,07 - 0,14 bar) 36

1.4.2.2.1 Air Compressor Panel 36

1.4.2.2.2 Pressure Maintenance Device 37

1.4.2.3 Supervisory Pressure (20-50 psi, 1,4 - 3,5 bar) 37

1.4.3 Alarm Devices 38

1.4.3.1 Mechanical (Water motor) Bell 38

1.4.3.2 Electrical Bells 39

1.4.3.3 Electronic Sounders With Optional Strobes 40-41

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1.4.4 Pressure Activated Switches 42

1.4.4.1 Alarm Type 42

1.4.4.2 Supervisory Type 42

2. DELUGE (SPECIAL HAZARDS) SYSTEMS 43

2.1 General Description 432.2 Hydraulic (Wet Pilot Activation) 43-47

2.3 Pneumatic (Dry Pilot) Activation 48-51

2.4 Electric Activation (Supertrol Systems) 52-59

3. PREACTION (SPECIAL SYSTEMS) 60

3.1 General Description 60

3.2 Hydraulic (Wet Pilot) Activation 61

3.2.1 Single-Interlock Type 61-63

3.3 Pneumatic (Dry Pilot) Activation 64

3.3.1 Non-Interlock Type 64-673.3.2 Single-Interlock Type 68-71

3.4 Electric Activation (Supertrol Systems) 72

3.4.1 Non-Interlock Type 73-80

3.4.2 Single-Interlock Type Supertrol Systems 81-87

NEW 3.4.2.1 PrePaK Preaction Systems 88-89

3.4.3 Double-Interlock Type Supertrol Systems 90

3.4.3.1 Type A 90-95

3.4.3.2 Type D 96-103

3.4.3.3 Nitrogen Regulating Device 104-1054. APPENDIX 106

4.1 Wet Pilot Line Hydraulic Data 106

2½″ (65mm) Deluge Valve Wet Pilot Line Table 106

4″ (100mm) Deluge Valve Wet Pilot Line Table 107

6″ (150mm) Deluge Valve Wet Pilot Line Table 108

4.2 Installation Measurements for Trimmed Primary Control Valves 109

4.2.1 Deluge Valve Trim for Wet, Dry or Electric Activation 109

4.2.2 Preaction Valve Trim for Pneumatic Activation, Single or Double Int. 110

4.2.3 Dry Pipe Valve Trim for Pneumatic or Electric Activation, Non-Interlock 1114.2.4 Installation Measurements for Deluge/Preaction Riser Assembly,

1½″ (40mm) Size112

4.3 Submittal Sheets A, B, C & D 113-117

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Revision lines on this bulletin indicate updated or new data.

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1. COMPONENT DESCRIPTIONS

1.1 Primary Control Valves

1.1.1 Diaphragm Differential Deluge Value

1.1.1.1 General

The Model A 2½″ (65mm) Deluge Valve is a hydraulic, direct diaphragm actuated valve designed for

use as a primary control valve in a fire protection system. Diaphragm actuation allows the valve to bereset by external hydraulic means, thereby eliminating the process of removing the cover plate.

The design features a limited compression piston which seals against a replaceable rubber seatretained in the valve body. This feature prevents localized compression set of the rubber seal.Compression set of the clapper seal in other valves require exact clapper-to-seat alignment whenresetting, and may result in leakage past the seal. Limited compression is accomplished by a metalretainer ring which allows the piston to squeeze the seal a predetermined fixed amount, regardless ofinlet supply pressure. The valve design also features a separately replaceable, molded diaphragmwhich incorporates an O-ring ends configuration on the inside and outside sealing diameters. TheO-ring ends provide more positive retention, clamping and sealing of the diaphragm to the piston andto the valve body.

1.1.1.2 Operation

The Model A 2½″ (65mm) Deluge Valve is aquick opening type consisting of (3)chambers: top (pressurized), outlet(normally dry) and inlet (pressurized). The(3) chambers are isolated from each otherby the diaphragm piston and compressionlimited seat seal. In the closed position(Figure 1), supply pressure in the top

chamber acts across the diaphragm andpiston holding the piston on the seat againstinlet supply pressure. The diaphragmpressure area is greater than the seatpressure area providing a closing forcedifferential of about 3 to 1.

When a fire is detected, the top chamber isvented to atmosphere through the outletport via an opened releasing device.

Figure 1 Model A Deluge Valve in CLOSED Position




The top chamber pressure cannot bereplenished through the restricted inletport as rapidly as it is vented from theoutlet port, and the chamber pressurefalls rapidly. When the top chamberpressure reaches about 1

3 the supplypressure, the upward force of the supply

pressure, acting on the piston face,overcomes the downward force on thediaphragm, and the piston moves to anopen position (Figure 2).

When the piston has opened, water flowsfrom the supply through the deluge valveinto the sprinkler system and through thealarm outlet to the alarm devices. Thevalve maintains the open position untilevery open releasing device is closed.CAUTION — THE RELEASING DEVICE

MUST BE MAINTAINED OPEN TOPREVENT AUTOMATIC CLOSING OFTHE MODEL A DELUGE VALVE.

1.1.1.3 Detection and Actuation

In general, the Model A 2½″ (65mm) Deluge Valve can be released by any listed or approved devicewhich opens sufficiently to vent the top chamber. The releasing device is connected to the topchamber outlet port and when this device opens to vent the top chamber, the deluge valve promptlyopens. Typical releasing devices include hydraulic manual emergency stations, pilot line sprinklers, drypilot actuators, and solenoid valves. Pilot line sprinklers perform both thermal detection and releasingfunctions, and no additional detectors are required when these devices are used. A solenoid valve

releasing device enables the use of various types of electrical fire detection devices. Typical detectiondevices include electrical manual emergency stations and thermal, flame, and ionization orphotoelectric smoke detectors. A releasing control panel (See Section 1.4.1) is required with asolenoid valve releasing device.

Figure 2 Model A Deluge Valve in OPEN Position


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1.1.1.4 Valve Description - 2½″ (65mm) Model A Deluge Valve

A. Rated working pressure: 175 psi (12, 1 bar).

B. Factory hydrostatic test pressure: 350 psi (24, 1 bar).

C. End and trim connections—three valve connection styles are available:

a. 2½″

(65mm) American Standard taper pipe threads inlet and outlet per ANSI BS.2(THD x THD).

• Threaded opening per ANSI B2.1.

• RELIABLE’s standard trim sets are compatible with American Standard taper pipethreads.

• Color—Black.

b. 2½″ (65mm) Grooved Inlet and Outlet Per ANSI/AWWA C606 (GRV x GRV).

• Threaded openings per ANSI B2.1.

• RELIABLE’s standard trim sets are compatible with grooved valves.

• Color—Black.

c. 2½″ (65mm) British Standard pipe threads inlet and outlet per BS21-1973.

• Threaded openings per ISO 7/1 - Rp

• RELIABLE’s standard trim sets may be used with metric valves providing trim isassembled carefully and extra thread sealant is applied to connections betweenvalves and trim.

• Color—light blue.

D. Shipping weight - 49 lbs. (22kg)

E. Friction Loss - Expressed in equivalent length of pipe, based on Hazen-Williams formula withC = 120 and a flowing velocity of 15 ft/s (4.6 m/s) : Equivalent Length = 17.1 ft. (5.2m)

F. Installation position - vertical.


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Groove Dimensions in Inches (mm)

Outlet Diameter Groove Diameter Groove Width Outlet Face to Groove

2.875 (73) 2.720 (69) 516 (8) 5

8 (16)




2½″ Model A Deluge ValveFeatures

1. Differential diaphragm type

• Lightweight.

• Dependable construction.

• Simple.

2. Simply and easily trimmed foractuation by a:

• Manual Device.

• Wet pilot sprinkler.

• Dry pilot actuator.

• Solenoid Valve.

3. Limited compression seat seal.

4. External hydraulic reset.

7. Listed by UNDERWRITERS LABORATORIES, INC. and UNDERWRITERS’LABORATORIES OF CANADA.

Approved by FACTORY MUTUAL RESEARCH CORP. and LOSSPREVENTION COUNCIL.

NYC BS & A NO. 587-75-SA

5. Furnished in 2½″ NPT, 2½″

grooved or 65 mm pipe threads.6. Separately replaceable diaphragm

and seat seal.

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1.1.1.5 Valve Description - Model H 1½″ (40mm) Deluge Riser Assembly

1.1.1.5.1 General

The Reliable Model H 1½″ (40mm) Deluge Riser incorporates a solenoid-operated di a-phragm type valve as the primary control valve in deluge, preaction or special types of fireprotection systems.

The valve is easily reset by external means which eliminates the need for removing thecover.

The trim is factory assembled for every Model H Deluge Riser. This trim provides su per-vised control valve, drain, electric alarm pressure switch and pressure gauges.

Actuation by solenoid enables a full range of electrical detectors to be used for remotesensing.

1.1.1.5.2 Operation

Reliable’s Model H 1½″ (40mm) Deluge Riser employs a quick-opening, hy drau li-cally-operated diaphragm actuated solenoid valve.

De-energized: supply pressure is retained at the solenoid valve inlet. Flow through thevalve is prevented by a plunger closing off the diaphragm pilot orifice and a diaphragm seal-ing against the main ori fice.

Energized: the plunger is lifted off the pilot orifice and vents the pressure behind the dia-

phragm. The venting creates a pressure imbalance across the diaphragm which causes thediaphragm to open the main orifice allowing flow through the solenoid valve.Once the solenoid valve has opened, water flows from the supply through the deluge riser

into the piping system and to the alarm initiating water flow pressure switch.After system shutdown and draining, the deluge riser is easily reset, without special tools,

by restoring detection devices to the ready condition. Once the detection system is readyand supply pressure is restored, the deluge riser will be reset. The external reset feature ofthe Model H 1½″ (40mm) Deluge Riser provides a means for simple, economical system test-ing which is one essential facet of a good maintenance program.

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1.1.1.5.4 Installation

The Reliable Model H 1½″ (40mm) Deluge Riser Assembly is factory assembled as il lus-trated on Page 9. The only piping connections required at the time of installation are an ap-propriate water supply connection, the system piping connection and a ¾″ NPT drain lineconnection. Preferred installation is vertical as illustrated; however, the riser assembly may beinstalled horizontally providing the solenoid is not located under the solenoid valve body.

Electrical connections are required between a releasing control panel and the solenoidvalve, supply water control valve monitor switch and the water flow alarm pressure switch.Refer to Bulletin 708 for further instructions when making these connections to the NotifierModel RP1001 Releasing Control Panel used with Re li able Supertrol Electrical Systems. Fea-tures and options available for Supertrol Electrical Systems, including fire detection means,are described elsewhere in this bulletin.

For the various Model H applications, see:

•Deluge Sys tem

Electric Activation Pages 58 and 59

• Preaction Sys tem Single-Inter lock Pages 86 to 87

• Preaction sys tem Double-Interlock Type D Pages 102 and 103

1.1.1.5.3 Description

1. Rated working pressure 175 psi (12,1 bar).

2. End connections - 1½″ American Standard taper pipe threads inlet and outlet per

ANSI B2.1.

3. Color - Galvanized pipe & Bronze valves.

4. Shipping Weight - 52 lbs. (23.6 kg).

5. Friction Loss - Expressed in Equivalent Length of Pipe. Based on Hazen-Williamsformula with C=120 and a flowing velocity of 15 ft/s (4.6 m/s): Equiv. Length = 29 ft.(8.84m) for the entire riser assembly.

6. Installation position: Vertical

7. Listed by Underwriters Laboratories, Inc. and Underwriters’ Laboratory of Canada.NYC MEA 258-93-E.

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1.1.2 Lever Differential Deluge Valve

1.1.2.1 General

Models B and BX Deluge Valves are hydraulically-operated differential type valves designed for use asprimary control valves in fire protection systems. Both models are easily reset; however, the Model Brequires cover plate removal, while the Model BX may conveniently be reset externally withoutremoving the cover plate.

Field replaceable bronze seat rings are incorporated in both models, and the push-rod assembly, leverand clapper assembly are all replaceable without removing the valve from the riser. The clapperassembly has been designed with a limited compression feature. This is beneficial to the rubberfacing which relies on pressure from the supply water to inflate the rubber facing, thereby providi ng thesealing force between the facing and the seat.

1.1.2.2 Operation

The Model BX Deluge Valve (closed) and the Model B Deluge Valve (open) are shown in Figures 3 and4, respectively. In the normally closed position, water supply simultaneously exerts pressure on theunderside of the clapper and in the push-rod chamber. The resulting chamber pressure force directedby the push-rod against the differential lever is to hold the clapper in the closed position against thesupply pressure.

Figure 3 Model BX Deluge Valve in Closed Position





1.1.2.4 Valve Description - 4″ & 6″ Model B and BX Deluge Valve.

A. Rated working pressure: 175 psi (12 bar).

B. Factory hydrostatic test pressure: 350 psi (24 bar).

C. End and trim connections - three-valve connection styles are available:

a. US Standard flanged inlet and outlet (FLNG x FLNG).

• Flanges mate with ANSI B16.1 (125lb) flange.


• RELIABLE’s standard trim sets are compatible with US flanged valves.

• Color - Black.

b. US Standard flanged inlet and grooved outlet (FLNG x GRV)

• Inlet flange mates with ANSI B16.1 (125 lb.) flange.

• Outlet Groove per ANSI/AWWA C606.


• RELIABLE’s standard trim sets are compatible with US flanged and grooved valves.

• Color—Black.

c. Metric flanged inlet and outlet.

• Flanges mate with DIN 2500 8.66, NF-E-29-282 and BS 4504 NP 16 flanges.


U.S. Flange Dimensions In Inches (mm)

Valve size

Bolt Circle

Diameter

Bolt Hole

Diameter

Flange Outside

Diameter

Flange

Thickness

Number of

Bolts4 (100) 7½ (191) ¾ (19) 9 (229) 15

16 (24) 8

6 (150) 9½ (241) 78 (22) 11 (279) 1 (25.4) 8

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Groove Dimensions in Inches (mm)

Valve Size Outlet Diameter Groove Diameter Groove WidthOutlet Face to

Groove

4 (100) 4.500 (114) 4.334 (110) 38 (9.5) 5

8 (16)

6 (150) 6.625 (168) 6.455 (164) 38 (9.5) 5

8 (16)



• Threaded openings per BS21-1957.

• RELIABLE’s standard trim sets may be used with metric valves providing trim isassembled carefully and extra thread sealant is applied to connections between valvesand trim.

• Color-light blue.

D. Face-to-Face “Take Out” dimension.

• 4″ and 100 mm - 14″ (355 mm).

• 6″ and 150 mm - 16″ (406 mm).

E. Shipping Weight:

F. Friction Loss - expressed in equivalent length of pipe, based on Hazen-Williams formulawith C = 120 and a flowing velocity of 15 ft/s (4.6 m/s):

G. Installation Position: Vertical.

H. External Reset Feature


Metric Flange Dimensions In Millimeters

Valve SizeBolt CircleDiameter

Bolt HoleDiameter

Flange OutsideDiameter

FlangeThickness

Number ofBolts

100 180 18.3 229 23.8 8

Size Flanged Inlet and Outlet Flanged Inlet and Grooved Outlet

4″ and 100 mm 115 lb. (52.0 kg) 105 lb. (47.6 kg)

6″ and 150 mm 200 lb. (90.7 kg) 186 lb. (84.3 kg)

Size Equivalent Length

4″ and 100 mm 15′ (4.57 m)

6″ and 150 mm 19′ (5.79 m)

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4″ & 6″ Model B & BX Deluge ValveFeatures

1. Differential lever type:• Lightweight.

• Dependable construction.

• Simple.

4. Bronze seat with O-Ring seals - resistcorrosion and leakage.

6. Tapered seat - provides precisedifferential operation.

3. Threaded in seat - simplifies replacement.

5. Pressure actuated facing - providesdependable seal.

2. Simply and easily trimmed foractuation by a:

• Manual device.

• Wet pilot sprinkler.

• Dry pilot actuator.

• Solenoid valve.

7. Three (3) connection styles available:

• ANSI flanged inlet and outlet.

• ANSI flanged inlet and US grooved

outlet.• Metric flanged inlet and outlet.

8. Simple to reset:

Model B No special tools required.Cover Plate must be

removed.

Model BX Reset Externally.Cover Plate removal isnot required.

10. Model BXListed by UNDERWRITERSLABORATORIES, INC. andUNDERWRITERS’ LABORATORIESOF CANADA.

Approved by FACTORY MUTUALRESEARCH CORP.

9. Model BListed by UNDERWRITERSLABORATORIES, INC. AndUNDERWRITERS’ LABORATORIESOF CANADA.

Approved by FACTORY MUTUALRESEARCH CORP. and LOSSPREVENTION COUNCIL.

NYC BS & A NO. 587-75-SA

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1.1.3 Differential Dry Pipe Valve

1.1.3.1 General

Models A and D Dry Pipe Valves are pneumatically activated valves designed for use as primary controlvalves in fire protection systems. Following each operation (releasing) of a dry pipe valve, the coverplate must be removed to reset the valve. Automatic or external resetting features are not available on

these dry pipe valves.

1.1.3.2 Operation

Features and the operation and installation details for RELIABLE Dry Pipe Valves are described inBulletins 352 and 353 (2½″ Model A) and Bulletins 350 and 351 (4″ & 6″ Model D).

1.1.3.3 Detection and Actuation

Dry pipe valves are occasionally used in some types of preaction systems and discussions of suchapplications are contained in Sections 3.3.1 and 3.4.1 of this document.

1.2 Control Valve Releasing Devices

1.2.1 Sprinkler Head (Hydraulic)

A closed sprinkler head becomes a primarycontrol valve releasing device when it islocated in a pipe (pilot) line that is attached tothe outlet from the hydraulically pressurizedtop or push rod chamber of a control valve.This arrangement is usually described ashydraulic (wet pilot) actuation of a system inwhich the pilot line sprinklers serve the dualpurpose of being control valve releasingdevices, as well as thermal detectors. SeeSection 1.2.1. and RELIABLE Bulletins 131and 136 for more information. Also, refer toRELIABLE Bulletins 501 and 503, and to theHydraulic Data (Section 4.1) for detailedinformation on pilot line elevation and lengthlimitations.


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1.2.3 Solenoid Valve (Electric)

A normally closed solenoid valve is a primary control valve releasing device located in the pipe li neattached to the outlet from the top or push rod chamber of a control valve. The solenoid valve releasingdevice separates water pressure in these chambers from atmospheric air pressure in a drain line.Whenever sufficient electrical current is provided for energizing the solenoid coil, this releasing valveopens and discharges water pressure from the chamber to a drain, thereby releasing the control valve.

This arrangement is referred to as electrical actuation of a system in which electrical heat, smoke, lightand manual detectors are used in conjunction with a solenoid valve releasing device.

SPECIFICATIONS:

SKINNERModel No. 73218BN4UNLVN0C111C2 Current: .42 amp HoldingRated working pressure: 175 psi (12 bar) Normally Closed/Powered to OpenPipe Size: ½″ NPT Female (R½) Listed by Underwriters LaboratoriesCv Factor: 4.0 NYC BS&A No 587-75-SAVoltage: 24 VDC Nominal Approved by Factory Mutual

Watts: 10 CSA CertifiedNEMA: 4X

ASCOModel No. 8210G207 Current: .44 amp HoldingRated working pressure: 175psi Normally Closed/Powered to OpenPipe Size: ½″ NPT Female (R½) Listed By Underwriters LaboratoriesCv Factor: 3.0 Approved by Factory MutualVoltage: 24 VDC Nominal CSA CertifiedWatts: 10.6NEMA: 4x


Skinner Solenoid Valve Shown

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Other Options Available



1.2.4 Manual Emergency Pull Station

1.2.4.1 Manual Pull Station (Hydraulic)

A manual pull station is a normally closed, quick opening valve which is a primary control valvereleasing device when it is located in the piping of a wet or line pilot line of sprinklers. It dischargeswater or air pressure from the pilot line, as an operated pilot line sprinkler would do. The quick openingreleasing valve is enclosed in an appropriately marked box which has a cover that must be opened by

overcoming a breakable strut. Once opened, the cover cannot remain closed without first replacing thebroken strut. RELIABLE Bulletin 506 gives detailed information on the Model A Manual Emergency PullBox (Station).


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1.2.4.2 Manual Emergency Stations (Electric)

A manual emergency station is used to electrically activate the solenoid valve releasing device whichreleases the primary control valve.

This non-break glass station is provided with a test/reset key. Semi-flush mount on a single gangconduit box. The station is operated by a pull on the cover. This causes a key latch to act against aretaining mechanism until adequate force is applied to open the station. As the station opens, a switch

is activated to initiate an electrical signal to the detector circuit in the releasing control panel. Theretainer is a permanent high tensile coil spring which is not released when key tested. When operated,the cover hangs down (and cannot be made to stay in a closed position) indicating that the station wasused to activate the alarm.


MODEL BNG-1 SINGLE POLEMODEL BNG-1F TWO POLE

Electrical Rating: 1 amp@ 6-125 VoltsUL ListedFM Approved

CFM 7150-0028:003NYC BS&A No. 750-76-SANOTE: The Model BNG-1F 2-pole version must be used

with cross-zoned detection devices, and doubleinterlock preaction systems

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Typical Wiring DiagramFor Listed Models, BNG-1, BRG-1

LRG-1,LNG-1

Typical Wiring DiagramFor Listed Models, BNG-1F, BRG-1F, BG-1F

IN (+) IN (-)

OUT (-)

OUT (+)

NormallyClosed

NormallyClosed

Common

Common

NormallyOpen

NormallyOpenForm C

Contacts

Form CContacts



1.3 Fire Detection Devices

1.3.1 Sprinkler Heads

Any closed sprinkler head can be used as a thermal detector whenever hydraulic or pneumaticactivation of the primary control valve is desired. Although a large variety of sprinkler temperatureratings exist, ratings between 135°F (57°C) and 212°F (100°C) are most common for use in wet or dry

pilot lines. RELIABLE Bulletins 110 and 117 illustrate suitable standard Model G and Model F1sprinklers, respectively. Model G Sprinklers may be coated with wax or lead for corrosion resistance.Quick response sprinklers installed in wet or dry pilot lines may be desirable as a means for hasteningoperation of a thermal detection system. Models GFR and F1FR sprinklers are described in RELIABLEBulletins 131 and 136, respectively. However, these quick response sprinklers cannot be coated forcorrosion-resistance.

Sprinkler heads used as thermal detectors must be spaced according to NFPA 13 sprinkler spacingrequirements. The sprinklers on the pilot lines must be spaced the same as the sprinkler spacingrequired for the Hazard to be protected. Refer to RELIABLE Bulletins 501 and 503, and to the HydraulicData (section 4.1) for detailed information on pilot line elevation and length limitations.


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1.3.2 Thermal Detectors:

1.3.2.1 Fixed Temperature Type with Rate Anticipation

A Model 302 detector operates within a controlled range of two tothree degrees of its set point, regardless of the rate of temperaturerise. Under rapid heat conditions, the rate anticipation featurecauses the detector to respond one to three degrees ahead of thesetting. However, it does not respond to momentary temperaturefluctuations below the selected protection level, thus eliminatingfalse alarms.

The detector automatically resets itself after an alarm whentemperature drops below the protection level. It is hermeticallysealed, shock and corrosion resistant, and tamper resistant. Anexplosion proof version is also available.

Electrical Rating:5 amp @ 6 to 125 VAC1 amp @ 6 to 25 VDC

FM spacing guide: 30′ x 30′ (9.1m x 9.1m) max.* AP-P (Adaptor Plate) - White Plastic for302 Detectors

Spacing must be according to NFPA 72 Mounts to 4″ (102mm) conduit box.Maximum Plate Diameter: 4.5 (114mm)

4.50″ (114.3mm)* The type and height of ceiling will Maximum (Detector Installed) Pendent

determine the maximum spacing allowed. Length: 3.25″ (82.6mm)


Model

Temperature °F (°C)

ApprovalsUL Rating

ft. x ft. (m x m)maximum*

MountingOperating

Max.Ceiling

302-135 135 (57) 100 (38) UL, FM 50 x 50 (15.2 x 15.2) Interior Vertical

302-200 200 (93) 150 (67) UL, FM 50 x 50 (15.2 x 15.2) Interior Vertical

302-AW-135 135 (57) 100 (38) FM All Weather Vert

302-AW-200 200 (93) 150 (67) FM All Weather Vert

302-H-135135 (57) 100 (38) UL, FM

40 x 40 (12.2 x 12.2)InteriorHorizontal

302-H-200200 (93) 150 (67) UL, FM

40 x 40 (12.2 x 12.2)InteriorHorizontal

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Heat Collector Marking Model

Maximum Rated Spacing *

UL FM

None 601 (1) 50 x 50 ft. (15.2m x 15.2m) 30 x 30 ft. (9.1m x 9.1m)

Gray ring 602 (1) 50 x 50 ft. (15.2m x 15.2m) 30 x 30 ft. (9.1m x 9.1m)

Gray spot 603 (2) 25 x 25 ft. (7.6m x 7.6m) 20 x 20 ft. (6.0m x 6.0m)

Gray spot & ring 604 (2) 15 x 15 ft. (4.6m x 4.6m) 15 x 15 ft. (4.6m x 4.6m)

Notes:(1) Models 601 and 602 are combination detectors.(2) Model 603 and 604 are fixed temperature only detectors.*(3) Spacing must be according to NFPA-72. The type and height of ceiling will

determine the maximum spacing allowed.(4) NYC BS&A No. 6-87-SA

Rate of Rise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15°F /min

8.3°C /min

Fixed Temperature

601, 603 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135°F(57°C)

602, 604. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . 200°F(93°C)

Ambient Temperature

601, 603 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . less than 100°Fless than 38°C

602, 604 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . 100°F, 150°F38°C,66°C

Color . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . .. . . . . . . White

Electrical

Normally Open Contacts . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . .. 3.0 A @6-125 VDC1.0 A @ 6-38 VDC0.3 A @ 125 VDC0.1 A @ 250 VDC

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1.3.3 Smoke Detectors

1.3.3.1 Ionization Type-

The Model CPD 7051 2-wire, dual chamber, ionization smoke detector contains a minute amount ofAmericium 241 which ionizes the internal air making it conductive. Visible and invisible combustionproducts introduced from any direction cause a reduction of the conductivity of the ionized air resultingin detector operation. A detector L.E.D. pulses at about 6 second intervals during normal standby

conditions and switches to steady illumination during alarm conditions.


UL 268 Listed for open area protection spacing.

Smooth Ceiling - 30′ (9.1m) Centers, 900 ft.2

(83.6m2).

NYC BS&A No. 1158-80-SA.

CFM 7256-074: 16

Max. Air Velocity: 2000 fpm (609.6mpm)

Finish: Off White, Textured

Electrical: Nominal Voltage 18-40 VDC

Standby Current: 60 uA

Alarm Current: 10-100 mA

Operating Temperature: 32°F (0°C) to100°F (38°C)

Radioactive Source: Less than 1.0Micro curies: Americium 241.

Mounting Base: Model 70-501000-001

Mounts directly to a 5″ (127mm) round or 4″ (102mm) octagonal box.

Maximum Base Diameter: 6.25″

(159mm)Maximum (Detector Installed) PendentLength: 3.00″ (76mm)

Spacing must be according to NFPA 72.

The type and height of ceiling will determinethe maximum spacing allowed.

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1.3.3.2 Photoelectric Type

The Model PSD 7155 2-wire photoelectric smoke detector responds to a broad spectrumof flaming and smoldering fire conditions. Three separate detection identifications are re-quired for alarm confirmation. This three-level detection sequence substantially reduces nui-sance alarms.

The detector L.E.D. pulses at about 10-second intervals during normal standby conditionsand switches to steady illumination during alarm conditions.


UL268 Listed for open area protection spacing.

Smooth Ceilings - 30′ (9.1m) Centers, 900 ft2

(83.6m2).

NYC BS&A No. 1158-80-SA

CFM 7256-074: 16

Finish: Off white textured.

Nominal Voltage: 10.2 to 36.8 VDC.

Standby Current: 55 uA.

Alarm Current: 10 to 100 mA.

Max. RMS Ripple: 50% of D.C. input.

Operating Temperature: 32°F to 100°F (0°C to 38°C)

Base-Model: 70-501000-001

Mounts directly to a 5″ (127mm) round or 4″ (102mm) octagonal box.

Maximum Base Diameter: 6.25″ (159mm)

Maximum (Detector Installed) PendentLength: 3.44″ (87.4mm)

Spacing must be according to NFPA 72

The type and height of ceiling will determinethe maximum spacing allowed.

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1.3.4 Flame Detectors

1.3.4.1 Infrared (IR) Type

Infrared radiation is present in most flames. Therefore, an IR detector can detect the presence of fireinstantaneously. A relatively long IR wavelength allows it to penetrate smoke, making detectionpossible. However, sources of IR radiation are not limited to fire.

Because there are so many sources of IR in the industry setting, the number of false alarms caused bydetection of non-fire-related sources has precluded use of a simple IR sensor as a viable fire detector.To make the ba sic IR de tec tor func tion in the in dus trial en vi ron ment, ad di tional dis criminating functionsmust be added.

A sig nif i cant ad vance ment in IR de tec tion is a de tec tor ca pa ble of sens ing a spe cific and lim ited bandof IR radiation in the wavelength range of 4.1 to 4.6 microns. Hydrocarbon fires all produce radiation inthis region, known as the “carbon dioxide spike.” This IR detector is still subject to false alarm, but to afar lesser extent than previous broadband IR detectors.

1.3.4.2 Ultraviolet (UV) Type

Ultraviolet detectors are not plagued by as many possible sources of false alarms. How-ever, they may not be able to detect a fire because of smoke obscuration, or the UV intensitymay be reduced by a buildup of dirt or oil on the lens. Sources of false alarms for UV de tec-tors are well de fined. The most common are:

• LightningLightning is the richest source of UV on earth. The electrical arc ionizes a path to the ground orfrom cloud to cloud and produces enough UV to actuate every detector in the area. However,the lightning strike is limited in duration and can normally be compensated for by a time delayof five or ten seconds. This, however, also limits the speed with which a real fire can be de-tected.

• X-RadiationBoroscopic examination of air craft as sem blies in han gars has emit ted enough ra di a tion to ac ti -vate UV detectors.

• Arc weld ing

A rich source of UV, arc welding is used frequently in industry and is undoubtedly the biggestsingle cause of false alarms in UV fire detection.


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1.3.4.3 Dual Spectrum (UV-IR) Type

This detection method employs a solar blind UV sensor with a narrow band IR detector.

As noted previously, a UV sensor is a good fire detector, but will react to x-rays, lightning, and arcwelding. To prevent false alarms caused by these sources, the UV-IR detector utilizes an IR detectorsensitive to wavelengths in the 4.1 to 4.6 micron range.


Model 850 Specifications:

Response time:150 msec typical for saturating fire signal.

Self-test:Manual and automatic through-the-lenscheck.

Temperature Range:Operating -40°F to 185°F

(-45°C to 85°C)Storage -85°F to 212°F

(-65°C to 100°C)Viewing Field (horizontal mounting)

Horizontal - 120°Electrical Requirements:

Input Power- 24 VDC (20 to 32 VDC, no ripple)

24 VDC Current Draw:90 mA (quiescent)110 mA (alarm)

Mechanical Characteristics:Enclosure- Explosion-proof to NFPA

Class I Groups B, C & DClass II Groups E, F & G

- Flame-proof to EExdIIBT5- Weather-proof to NEMA 4Water-tight and dust-tight

- Corrosion resistant epoxy paintWeight: 4.8 lbs. (2.2 kg) 24 VDC Model

Other options available. Request OMNIGUARD ®

Manual 1031216.

In the industrial environment, the predominantsources of false alarms for ultraviolet firedetectors are welding, lightning, electrical arcs,and x-rays. Sunlight, heaters, lamps, and hotequipment have been identified as thepredominant sources of false alarms for IRdetectors. Since these sources of false alarmsare mutually exclusive, logically combining thedetected signal for a UV and IR sensor greatlyreduces the false alarm rate. OMNIGUARD

®850

Series fire detectors owe their high level of falsealarm rejection to a patented circuit known asFEA (Fire Event Analysis). Most dual-spectrumfire detectors use a threshold level measurementto confirm a fire presence. Only the 850 Seriesuses Fire Event Analysis.

Features• Robust weather-proof construction certified

for hazardous locations.

• Major International third party approvals andcertifications.

• Microprocessor controlled operationincorporated patented Fire Event Analysis.

• Advanced Built in automatic diagnosticswith through the lens clarity checking andoutput device monitoring.

• Enhanced detection range capability with a120 degree field of view.

As with all OMNIGUARD®

flame detectors, theSeries 850 is easy as well as economical to in-stall. The self-contained concept means nocostly controller and no complicated wiring. In-

stallation requires 24 VDC, and connection ofthe detector’s for C relays to a commerciallyavailable fire control panel

* An ad di tional 24 VDC power sup ply may be re-quired when installed with the RP1001 Re-leasing Control Panel.

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• Annunciator Driver Module (4XLM)

The Annunciator Driver Module supports the Module RZA-4X Remote Annunciator. The An-nunciator Driver Module mounts to the main board, occupying one of the two option con nec-tors.

• Remote Annunciator (RZA-4X) The Remote Annunciator mounts on a standard single-gang box and provides the following:

• System Trouble LED (yellow) • Waterflow/Supervisory Bell LED (red)

• Local Piezo Sounder • Releasing Circuit 1 LED (red)

• Silence Switch (for local sounder) • Releasing Circuit 2/Supervisory Bell LED (red)

• Alarm/Waterflow Bell DetectedLED (red)

• Zone Relay Module (4XZM)

One Zone Relay Module is included with the basic RP1001 Panel.

The Zone Relay Module provides six (6) Form-C dry contacts for the following:

• Alarm/Waterflow Bell • Releasing Circuit 2/Supervisory Bell

• Waterflow/Supervisory Bell • System Alarm

• Releasing Circuit 1 • System Trouble


30



1.4.1.4 Model RP-1001 Releasing Panel


UL and ULC LISTEDFM ApprovedNYC MEA No. 419-91-ECFM 7165-0028:161

Battery OptionsPS 12120 90 Hrs (FM Required)PS 1270 60 Hrs

Panel Dimensions14.5″ (368.3mm) wide x 16″ (406.4mm)high x 5″ (127mm) deep

Mounting hole pattern (4 Holes)12.5″ (317.5mm) wide x 9.2″ (233.7mm)high x .25 (6.38mm) Dia.Specifications:

AC Power:120 VAC, 50/60 Hz, 1.2 amps230 VAC, 50 HZ, International (Optional)Wire size: Minimum #14 AWG with 600V

insulation.Initiating Circuits:

Power-limited circuitry.Operation: Class A/Class BStandby Voltage: 24 VDC (ripple -

10mV p/p)Alarm Current: 15 mA minimum.Short Circuit Current: 40 mA maximumMaximum detector current in standby:

2 mA per zone

Maximum loop resistance: 200 ohmsEnd-of-line resistor: 4.7K ohms, ½ wattDetector loop current is sufficient toensure operation of one (1) alarmeddetector per zone.Supervisory Current: 5 mA

Indicating Appliance and Releasing Circuits:Power-limited circuitryMaximum voltage drop due to wiring:

2.0 VDCStandby Voltage: 24 VDCFuses: 2AG, 4 AmperesTotal current to all external devices:

2.25 ampsMaximum signaling current per circuit:

2.25 ampsEnd-of-line resistor: 4.7K ohms, ½ watt

Alarm and Trouble Relays:2.0 amps @ 30 VDC0.5 amps @ 30 VAC

24 VNR Non-resettable PowerTotal DC current available from this outputis up to 200 mAMaximum ripple voltage: 10mV p/p

For detailed information and wiring diagrams, refer to RELIABLE Bulletin 708.

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1.4.2 Pneumatic Pressure Equipment

1.4.2.1 Dry Pilot Line (20-50 psi; 1,4 - 3,5 bar)

Dry pilot line operation is used to activate a primary control valve in areas which are sub-ject to ambient temperatures above 150° F (66°C), freezing conditions, or pilot line heightsand lengths greater than those allowed for wet pipe lines. In the area to be protected, theclosed pilot line sprinklers are pressurized with air or dry nitrogen gas. This pressurized line

is connected to a dry pilot actuator releasing device. (Ref. Section 1.2.2). The various com-ponents needed for maintaining pressure in pilot lines are described as follows :

1.4.2.1.1 Air Compressors

A 16 hp model is illustrated. Compressors are available

up to 2 hp. Refer to RELIABLE Bulletin 275 forinformation on larger compressor sizes. ContactReliable’s customer service department for informationon compressors with start/stop switches and tankmounted air compressors.NOTE: If compressor does not have a start/stop switch,a Model B-1 Air Maintenance Device is recommended(Ref. Bulletin 251).• Features of tankless compressors include:• Oil-less - Permanently lubricated.• May be mounted in any position.• No adjustment necessary.• Thermal protection (single phase).• Direct Drive - No belts or gears.• Can be riser mounted using bracket number

AK289• Air filter, one per cylinder.• Compatible with air maintenance devices having

unloader valves.• Safety Relief Valve - 50 psi (3,4 bar).• Underwriters Laboratories, Inc. Listed• CSA Certified


32




RPMNet

WeightMaximumPressure

Model Number Motor60

Cycle50

Cyclehp kW lbs (kg) psi (bar)

1LAA-10-M100X 115-60-1 17251

6 .12 17 (7.7) 50 (3,4)

1LAD-10-M104X 220-50-1 1425 16 .12 17 (7.7) 50 (3,4)

1LAA-11T-M100X 115-60-1 1725 16 .12 48 (21.8) 50 (3,4)

1 HAB-11T-M100X 115-60-1 1725 16 .12 48 (21.8) 90 (3,4)

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NOTE: A tank-mounted air com-pressor is recommended on alldouble-interlock preaction sys-tems.

33

Recommended Air Compressor Sizing for the Type D Double-Interlock Preaction Systems:

The above chart is based upon the Maximum Gallons of Capacity in the system when pressurized at10 psi (0,7 bar) within 30 minutes.

System Size Compressor Flow and Sizing

Gal. LitersCFM @10 PSI

m3/min @ 0,7 bar Air Compressor

Size

90 340.7 1.35 .03816 hp

150 567.8 1.35 .03816 hp

180 681.4 1.35 .03816 hp

300 1135.6 2.2 0.061

4 hp

400 1514.2 2.7 0.0814 hp

500 1892.7 2.7 0.0813 hp

600 2271.2 4.0 0.1112 hp

750 2839.1 4.0 0.1112 hp

800 3028.3 4.0 0.1112 hp

1000 3785.4 5.1 0.143

4 hp1250 4731.8 6.0 0.17 1 hp

1500 5678.1 9.5 0.27 11

2 hp

1750 6624.5 9.5 0.27 11

2 hp

2000 7570.8 9.5 0.27 11

2 hp

* As recommended by the GAST guide.



1.4.2.1.2 Pressure Maintenance Devices

Automatic pressure maintenance devices are used to maintain the correct pressure in the dry pilot l ineto connect dry pilot actuators. The devices described below eliminate the need for manual refilling ofdry pilot lines to overcome small leaks or temperature changes. RELIABLE Automatic PressureMaintenance Devices do not interfere with the prompt operation of Model A Dry Pilot Actuator releasingdevices.

• Model A-2

The Model A-2 Device is designed for use where a source of compressed gas is available, such as aplant wide compressed air system, a tank mounted air compressor with a pressure control switch, orcylinders of compressed gas. In areas where moisture-laden air could cause freezing problems in adry pilot line, the use of air dryers or cylinders of dry compressed gas, such as nitrogen, is suggested.Approved gas handling regulators and connections are required on these cylinders. For nitrogenregulators see Bulletin 253. The regulator in the Model A-2 Device will reduce the pressure from anacceptable gas source (175 psi (12 bar) maximum) to the level required in a dry pilot line. The ModelA-2 Device will maintain a constant pressure in the pilot line, regardless of fluctuations in the higherpressure compressed gas source being used.

The strainer prevents any foreign matter in theair from traveling to the regulator andcheck valve and interfering with their normaloperation. The shut-off valves permit theservicing of the strainer and regulator withoutshutting down the sprinkler system. Thebypass valve permits rapid restoration of therequired system pressure after service oroperation. The bypass valve must be closedand shut-off valves open for proper automaticoperation.

Refer to Bulletins 250 and 251 for moreinformation.

Pressure Rating:Adjustable Range 5-50 psi. (0,3 - 3,4 bar)Maximum Inlet Pressure 175 psi (12 bar)

Approvals:Underwriters Laboratories, Inc.Underwriters’ Laboratories of CanadaFactory Mutual Research Corp.NYC BS&A No. 587-75-SA


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• Model B-1

The Model B-1 Device is designed for use in conjunction with a tankless compressor which does nothave a pressure control switch to maintain the correct pressure in a dry pilot line. By wiring thecompressor motor to the adjustable electrical pressure switch of the Model B-1 Device, the operation ofthe compressor is controlled by the desired pressure in the dry pilot line.


A significant decrease in air pressure closes thepressure switch activating the compressor.When the air pressure is restored to thepre-adjusted setting, the pressure switch opens,stopping the compressor. The pressure switch isequipped with an unloader valve whichautomatically bleeds off the compressor outletpressure (through the copper tubing) each timethe pressure switch opens. This protects the

compressor motor from overload at the nextstart-up.

Like the Model A-2 Device, the Model B-1 has astrainer for contamination control, and thebypass valve must be closed and the shut-offvalves open for proper automatic operation.

Refer to Bulletins 250 and 251 for moreinformation.

Pressure Rating:Adjustable Range: 14 - 60 psi (1-4,1 bar)

Maximum Inlet Pressure: 175 psi (12 bar)

Electrical Rating: Single Phase Three Phase

115 Volts AC; 2hp 230 Volts AC; 5hp230 Volts AC; 3hp 460/575 Volts AC; 5hp

115-230 Volts DC; 2hp

Approvals:Underwriters Laboratories, Inc.Underwriters’ Laboratories of CanadaFactory Mutual Research Corp.NYC BS&A No. 587-75-SA

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1.4.2.2 Supervisory Pressure 1 to 2 psi (0,14 bar)

Supervisory pressure maintenance equipment provides low pressure (approx. 30 oz/in2) compressedgas to the sprinkler piping of a preaction system. Leakage, such as that caused by damage to thepiping or sprinklers, can cause the supervisory pressure to decrease. When pressure falls belowapproximately 11 oz/in2 (0,05 bar), either a horn is sounded (Model B & C Air Compressor Panel), or aswitch operated (Model C Pressure Maintenance Device). The switch must be connected to aseparate trouble annunciator.

1.4.2.2.1 Air Compressor Panel— For Single-Interlock Preaction Systems

Model B (120 VAC) and C (220 VAC) Air Compressor Panels are a completely self-containedsupervisory air supply. The panel is supplied with an externally connected assembly consisting of acheck valve, copper tubing, and tubing connector. The ¼″ NPT check valve must be installed at thesprinkler riser with its flow arrow pointing toward the riser. Install the check valve above the primingwater level. The copper tubing connects the inlet of the check valve to the air compressor panel ai routlet.


Width x Height x DepthIn Inches (mm)

Mounting Hole PatternWidth x Height x Dia.

In Inches (mm)Electrical

Requirements

Approvals(1)

16 x 20 x 8(406 x 508 x 203)

14¼ x 18¼ x ¼(362 x 463 x 6.4)

(1)120 VAC, 60hz, 1.5 Amp220 VAC, 50hz, .75 Amp

UL ListedFM Approved

NYC BS&A No.587-75-SA

Air flow capacity: .50 cfm Free, .45 cfm @ 35 oz/in2 (0,15 bar) pressure.

The panel is intended for wall mounting and contains an integral low pressure annunciator horn andlight. The panel will normally supply approximately 30 oz/in2 (0,13 bar) air pressure and the horn willsound for pressures less than approximately 11 oz/in2 (0,05 bar). A silence switch is provided to silencethe horn (but not the light) while supervisory pressure builds up or repairs are made. OS&Y monitorswitch connections are provided as terminals M1 and M2. Monitor switch contacts must be open whenthe OS&Y valve is open. Closing the OS&Y valve will cause the horn in the compressor panel toannunciate. The 120/220 VAC power connections are terminals L1 and L2. Additional dry contacts areincluded for transmission of low voltage supervisory signals. Refer to Bulletin 252.

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The Model C Mechanical Alarm, also called awater motor and gong, is a hydro- mechanicalalarm usually mounted on an outsidebuilding wall and energized by water flowingfrom special porting in a primary controlvalve. When a control valve is operated bythe fusing of one or more automaticsprinklers, water flows through the ¾″ strainerand ¾″ piping that connects to the watermotor. In the motor, water passes through thenozzle and impinges against the Pelton wheelblades causing the Pelton wheel to rotate.

The striker assembly connected to the Peltonwheel by the drive shaft also rotates causingthe striker to impact against the gongproducing a continuous piercing alarm. Thewater, after impinging against the Peltonwheel, drains off through the 1″ drain outlet inthe body motor.

The alarm continues to sound as long as water is in the sprinkler system. The water motor alarm maybe shut off by closing the alarm control valve, located in the trim of the primary control valve. Model CMechanical Alarms are self resetting after each operation, eliminating the need of removing cover

plates, etc. to reset internal mechanisms. Refer to Bulletins 612 and 613 for more information.

Listed by Underwriters Laboratories, Inc & Underwriters’ Laboratories of Canada.Approved by Factory Mutual Research Corporation & Loss Prevention Council.NYC BS & A No. 587-75-SA.

1.4.3 Alarm Devices

1.4.3.1 Mechanical (Water Motor) Bell

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1.4.3.2 Electrical Bells

The SSV/SSM Series bells are low current, audiblesignaling devices for use in fire systems or othersignaling applications. The SSM Series bells use alow-current high-efficiency DC motor to drive thestriker. These models are polarized for use with

electrical supervision circuitry. The SSV Series bellsuse a two-coil vibrator, and are for use with AC power.

Consult System Sensor Bulletin A05-260-02 for moredetails.

Low-Current Drain: 70 mA MAX @ 24 VDCMount to 4″ (100mm) square outlet box.

Red enamel finish standard.Model WBB weather-proof back box available foroutdoor use.

UL Listed.NYC BS&A No. 524-77-SA.FM Approved.


39

SSM-24-6SSM-24-8SSM-24-10SSV-120-6

SSV-120-8SSV-120-10

Bell, 6″ (150mm), 24 VDC, PolarizedBell, 8″ (200mm), 24 VDC, PolarizedBell, 10″ (250mm), 24 VDC, PolarizedBell, 6″ (150mm), 120 VAC

Bell, 8″ (200mm), 120 VACBell, 10″ (250mm), 120 VAC



1.4.3.3 Electronic Horns With Optional Strobes

The high reliability and low power requirements ofelectronic horns make them suitable for most fire alarmapplications. The horns are rated for continuous operationand may be used in systems installed in schools,institutions, industrial, commercial or residential buildings.

Visual strobe alarm signals are often required by localcodes.

Electronic horns provide high sound output at low current.During a fire alarm, the optional strobe brightly illuminates.

• Specifications for American Disabilities Actapproved Horn/Strobes

Horns and Strobes shall be System Sensor Spectra Alert Series or approved equal. They shall be U.L.Listed for fire protective service and shall provide 24 VDC inputs, with a maximum sound output of 101dBA measured at 10 feet. The horn shall include screw terminals for in-out field wiring. The horn and/orstrobe shall surface mount to a standard 2″ x 2″ x 1½″ (51mm x 51mm x 38mm) deep box or to a 2″ x4″ x 17

8″ (51mm x 102mm x 48mm) deep box.

The horn shall have the option of mounting a System Sensor flashing signal strobe, or equivalent, to thefront of the sounder and the strobe must be capable of operating in tandem or independently of thehorn.

The integral strobe shall have a translucent lens. The polarized strobe shall operate from a 24 VDCpanel and shall produce at least 15 Candela at approximately one flash every second. Consult SystemSensor Bulletin A05-936-02 for more details.

• Approvals:

Underwriters Laboratories, Inc.Underwriters’ Laboratories of CanadaFactory Mutual Research Corp.


Model Description

H 12/24 (Red) H 12/24W (White) Horn, 24VDC polarized

S2415 (Red) S2415W (White) Strobe, 24VDC polarized

P2415 (Red) P2415W (White) Horn/Strobe, 24VDC polarized

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• Accessories are not packaged with the Spectra Alert Horns or Strobes. Order by Model andSpecify 24 VDC voltage along with the mounting accessories to suit your requirements.

• Specifications for Non-ADA Re quire mentsSystem Sensor Multi Alert SS 24 Lo-Strobe MASS24LO Sounder with Strobe and MA 12/24D

Sounder are UL Listed for secondary signaling where ADA Requirements do not apply.

Consult System Sensor Bulletin A05-207-05 for more details.


Model Description

S-MP (Red) S-MPW (White) Single Gang Mounting Plate

BBS (Red) BBSW (White) Surface Mount Back box

D-MP (Red) D-MPW (White) Universal Mounting Plate (Replacement)

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2. DELUGE (SPECIAL HAZARDS) SYSTEMS

2.1 General DescriptionA deluge system is intended to wet an entire area by causing water to flow from many nozzles orsprinklers that are open at all times. With suitable detection devices, like those described in Section1.3, a deluge system is capable of applying water to a fire more quickly than a system utilizing

temperature sensitive closed sprinklers. Deluge systems are usually associated with extra hazardoccupancies, ceilings that are unusually high, and where substantial draft conditions exist.Out-of-doors application for exposure fire protection are also common. Materials with high rates ofheat release, such as flammable liquids, other rapidly developing fires or moving materials onconveyors, are other applications. Typical installations include coal conveyors, dip tanks, electricaltransformers, aircraft hangars, oil refineries, and chemical plants. The FIRE PROTECTION HANDBOOK published by the NATIONAL FIRE PROTECTION ASSOCIATION (NFPA) contains acomprehensive description of deluge sprinkler systems.

The water supply to each deluge system is controlled by a primary control valve called a deluge valve.Deluge valves manufactured by RELIABLE are described in Sections 1.1.1 and 1.1.2.

2.2 Hydraulic (Wet Pilot) ActivationWet pilot line operation is the simplest andleast costly method of deluge valve actuation.It consists of a pilot line of closed sprinklerslocated over the area to be protected. Thisline contains water under pressure, and it isconnected to the outlet of the top chamber orpush rod chamber of a RELIABLE DelugeValve (see Fig. 1 or 2).

When one of the pilot sprinklers fuses, thechamber pressure is relieved and the deluge

valve operates. A wet pilot line is a detectionsystem and does not significantly contribute tocontrolling the fire. Hydraulic manualemergency stations (see Section 1.2.4.1) canprovide a remote, manual method ofoperation. They are used as an adjunct to anautomatic pilot line detection system, asrequired.


Figure 1 Model A Deluge Valve with Wet Pilot Trim

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Figure 2 Model BX Deluge Valve with Wet Pilot Trim

A wet pilot line functions as a thermal detecting and a releasing means, and it is to be installed subjectto the following restrictions:

a) It is not to be installed in an area subject to freezing.b) It is not to be installed in an area where temperatures in excess of 150°F (66°C) are

anticipated.c) NFPA Pamphlet No. 13, or the Authority Having Jurisdiction, should be consulted for

pilot sprinkler spacing requirements.d) It is to be installed in accordance with the following table. See Appendix Section 4.1

for combination height and distance limitations.

Average SupplyPressure At Valve

Maximum Height of Wet Pilot Line Above Deluge ValveFeet (Meters)

psi bar 2½″ (65mm) 4″ (100mm) 6″ (150mm)

20 1,4 7.7 (2.3) 7.7 (2.3) 10.8 (3.3)

40 2,8 12.3 (3.8) 18.4 (5.6) 21.5 (6.6)

60 4,2 21.6 (6.6) 27.8 (8.5) 32.3 (9.8)

80 5,6 30.8 (9.4) 37.0 (11.3) 43.1 (13.1)

100 7,0 43.1 (13.1) 44.6 (13.6) 50.8 (15.5)

120 8,4 53.9 (16.4) 52.4 (15.9) 58.5 (17.8)

140 9,8 67.8 (20.7) 66.2 (20.2) 75.5 (23.0)

160 11,3 80.1 (24.4) 78.5 (23.9) 81.6 (24.9)

175 12,1 92.4 (28.2) 84.6 (25.8) 84.7 (25.8)

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The trimmings for Model A, B, and BX Deluge Valves are arranged for rapid, compact attachment andserve as connection points to alarm and other devices. The required RELIABLE Deluge Valve trim setis:

Deluge Trim—Wet Pilot

See Figure 1 and 2. This trim set provides the main drain connection, (shown attached to an optionaldrain trim kit for added convenience) the alarm device connection, the alarm test connection, the top orpush rod chamber supply connection, and supply pressure gauge.

Also included is the connection to the top or push rod chamber outlet. This trim set connects to a wetpilot line and includes a gauge to read the chamber pressure, a valve for manual operation of thedeluge valve, and a connection for releasing devices.

All Reliable deluge valves are Listed and Approved by UNDERWRITERS LABORATORIES, INC. andFACTORY MUTUAL RESEARCH CORP., respectively, when used with the above trim sets.


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46




Deluge System

Hydraulic (Wet Pilot) Activation

Design Specifications&

Ordering Information

(1)System Equipment Manufacturers

(A) Notifier, Division of Pitway Corp.

(B) Fenwal Inc., Division of W. Kidde & Co., Inc.(C) Skinner Valve Division, Parker Hannifin Corp.(D) The Reliable Automatic Sprinkler Co., Inc.

(E) United Electric Controls Co.

(F) Meggitt Avionics(G) System Sensor, Division of Pitway Corp.(H) Thermotech, Inc.

ITEMNo. COMPONENT PART (1) DESCRIPTION

1 Isolating Valve OS&Y or Butterfly Type

2 Deluge Valve D Mod. A, 2½″ THD x THD or GRV x GRV

Mod. B, 4″ or 6″ FLNG x FLNG or FLNG x GRV

Mod. BX, 4″ or 6″ FLNG x FLNG or FLNG x GRV

3 Deluge TrimWet Pilot

D Mod. A (Bulletin 503),Mod. B&BX (Bulletin 501)

6 Drain Manifold(Optional)

D Mod. A (Bulletin 503)Mod. B&BX (Bulletin 501)

7 Water Flow Pressure Switch(Optional)

G Mod. SPDT EPS 10-1Mod. DPDT EPS 10-2

8 Mechanical Alarm (Optional) D Mod. C (Bulletin 612 & 613)

15 Sprinklers D Closed Type(Bulletin 110, 117, 131, 136, etc.)

16 Manual Emergency Station(Optional)

D Model AHydraulic (Pilot Line) Type

23 Sprinklers / Nozzles D Open Type (Bulletin 104 & 106)

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(I) Gast Manufacturing, Inc.



2.3 Pneumatic (Dry Pilot) ActivationDry pilot line activation of a deluge valve requiresthat the pilot lines contain pneumatic pressure in lieuof hydraulic pressure, as discussed in Section 2.2.Incorporating pneumatic pressure equipmentresults in a somewhat more costly deluge system,

when compared with a hydraulically activatedsystem. However, this additional cost is justifiedwhen freezing conditions or pilot lines of substantialheight and length prevent the use of wet pilot lines. Adry pilot line of closed sprinklers (thermal detectors)is located over an area to be protected, and ispressurized with compressed gas, such as air or drynitrogen. This pressurized pilot line is connected toa Model A Dry Pilot Actuator releasing device (seeSection 1.2.2), which functions like a small dry pipevalve. While the pilot line is pressurized adequately,the actuator remains closed keeping sufficient water

pressure in the top chamber or push rod chamber ofa RELIABLE Deluge Valve (see Figure 1. or 2.) tokeep it closed. When a pilot line sprinkler fuses, thepneumatic pressure is reduced until the actuator isno longer able to hold water pressure in the topchamber or push rod chamber. The deluge valve is then released to open and flow water into thesprinkler system.

A dry pilot line is only for thermaldetection purposes. It will notdischarge water from any of itsopened sprinklers. Model AManual Emergency Pull Stations,(see Section 1.2.4.1) can beincorporated into the dry pilot line,and they should be piped so thatdischarging pneumatic pressureis directed away from the personoperating the station.

Figure 1 Model A Deluge Valve with Dry PilotTrim

Figure 2 Model BX Deluge Valve with Dry Pilot Trim


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It is very important that suitable automatic pressure maintenance equipment (see Section 1.4.2.1) beused to safeguard against accidental deluge valve operation, resulting from possible minor pressureleakage in the dry pilot line.

The dry pilot line trim set, required when pneumatically activating a RELIABLE Model A, B, or BXDeluge Valve, includes a Model A Dry Pilot Actuator releasing device and a low pressure switch forsupervision purposes. This switch is factory set to activate a warning annunciator whenever pressure

falls below 25 psi (1,7 bar). The switch can be adjusted to other pressure levels, if required.Appropriate pneumatic pressures for dry pilot lines used with RELIABLE Deluge Valves are given bythe following table:


Water Pressure, psi (bar) Pneumatic Pressure to be Pumped into Dry Pilot Line, psi (bar)

Maximum Not Less Than Not More Than

20 (1,7) 10 (0,7) 20 (1,4)

50 (3,5) 15 (1,0) 25 (1,7)

75 (5,1) 20 (1,4) 30 (2,1)

100 (7,0) 25 (1,7) 35 (2,4)

125 (8,6) 30 (2,1) 40 (2,8)

150 (10,3) 35 (2,4) 45 (3,1)

175 (12,1) 40 (2,8) 50 (3,5)

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Deluge SystemPneumatic (Dry Pilot) Activation




(A) Notifier, Division of Pitway Corp.(B) Fenwal Inc., Division of W. Kidde & Co., Inc.(C) Skinner Valve Division, Parker Hannifin Corp.(D) The Reliable Automatic Sprinkler Co., Inc.

(E) United Electric Controls Co.(F) Meggitt Avionics(G) System Sensor, Division of Pitway Corp.(H) Thermotech, Inc.






3 Deluge TrimDry Pilot





G Mod. EPS 10-1 (SPDT)Mod. EPS 10-2 (DPDT)


15 Sprinklers D Closed Type

(Bulletin 110, 117, 131, 136, etc.)


D Mod. AHydraulic (Pilot Line) Type

18 Air Compressor I Mod. A, 13, ¾, 1½ hp (Bulletin 275)

I Mod. A, 16 hp (Bulletin 707, Section 1.4.2)

19 Pressure MaintenanceDevice

D Mod. B-1, Use with Item No 18(Bulletin 251)

Mod. A-2, Use with N2 or Owner’s Air Supply(Bulletin 251)

23 Sprinklers / Nozzles D Open Type (Bulletin 104 & 106)

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(I) Gast Manufacturing Inc.



2.4 Electric Activation (Supertrol System)Electric activation of a deluge valve requires heat, smoke, or flame detectors (see Sections 1.3.2, 1.3.3,and 1.3.4), which communicate electrically with an electrical releasing control panel (see Section1.4.1). Electrically activated deluge systems are generally more costly than hydraulic and pneumaticsystems. However, electrical systems offer the greatest number of features, design flexibility, speed ofoperation, and ability to interface with other building services systems.

When the detection section of an electrical deluge system senses the presence of fire, an electricalsignal to the releasing control panel immediately activates an alarm bell circuit and energizes open a

normally closed solenoid release valve (see Section 1.2.3). The solenoid release valve (Figures 1 & 2),when closed, is preserving sufficient water pressure in the top chamber or push rod chamber of aRELIABLE Deluge Valve to hold it closed. Opening the solenoid release valve relieves that waterpressure, and thereby opens the deluge valve to allow water flow into the sprinkler system. Thereleasing control panel electrically latches the solenoid releasing valve in the open position, andresetting it closed can only be accomplished by operating a resetting switch in the panel after alldetectors and manual emergency pull stations are reset.

Manual emergency pull stations (see Section 1.2.4.2) are incorporated electrically into detectorcircuits. The single pole Model BNG-1 is normally used. However, when a releasing control panel isarranged with the briefly delaying characteristic of cross-zoned operation (see Section 1.4.1.2), thenthe two-pole Model BNG-1F station is used. The two-pole station enables activation of both detector

circuits, simultaneously circumventing the delaying characteristic by causing immediate water flowinto the system when fire is visually observed.

A releasing panel has the capacity to supervise constantly the power supply, detector, alarm bell, andsolenoid releasing valve electrical circuits, and it will provide visual and audible trouble annunciationwhenever electrical faults occur in these circuits.

NOTE: A fire alarm panel may not be an approved releasing panel and may not havesufficient battery back-up.

Figure 1 Model BX Deluge Valve with Electrical Actuation


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Deluge SystemElectric Activation






(E) United Electric Controls Co.







3 Deluge TrimElectric




7 Water Flow Pressure Switch(Optional))

G Mod. EPS-10-1 (SPDT)Mod. EPS-10-2 (DPDT)


10 Releasing Control Panel

(Optional)

A Mod. RP-1001

Batteries A Mod. PS 12120 (90 Hrs. backup) (FM)

Mod. PS 1270 (60 Hrs Backup)

Optional Accessories A Mod. 4XTM Transmitter Module

Mod. 4XLM Annun. Driv. Module

Mod. RZA-4X Remote Annun.

Mod. 4XZM Zone Relay Module

11 Alarm Annunciator (Optional) G Mod. SSM-24-8-24VDC / Polarized Bell

Mod. SSM-24-10-24VDC / Polarized Bell

Mod. H 12/24-24VDC / Polarized Horn

Mod. P2415-24VDC Polarized Horn/Strobe

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56


(Future)





1½″ Deluge SystemElectric Activation







2 Deluge Riser Assembly D/C Model H 1½″ THD X THD (Bulletin 507)

10 Releasing Control Panel

(Optional)

A Model RP-1001

Batteries A Model PS 12120 (90 Hrs. Backup) (FM)

Model PS 1270 (60 Hrs. Backup)

Optional Accessories A Model 4XTM Transmitter Module

Model 4XLM Annunciator Driv. Module

Model 4ZA-4X Remote Annunciator

Model 4ZXM Zone Relay Module


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1½″ Deluge SystemElectric Activation







11 Alarm Annunciator (Optional) G Model SSM-24-8-24VDC / Polarized Bell

Model SSM-24-10-24VDC / Polarized Bell

Model H 12/24-24VDC / Polarized Horn

Model P2415 24VDC Polarized SounderHorn/Strobe

12 Trouble Annunciator(Optional)

GModel SSM-24-6-24VDC / Polarized Bell


13Manual Emergency Station(Optional) A

Model BNG-1 (SPDT)

1 & 2 Area Detection

14 Detectors (Optional)

Thermal H Model 302 Pendent / Interior, 135°F, 200°F

Thermal Model 302H Horizontal / Interior, 135°F, 200°F

Thermal Mod. 302AW Pendent / All Weather, 135°F, 200°F

Adapter Model AP-P Adapter Plate (Model 302 Only)

Smoke B Model PSD7155 Photoelectric

Smoke Model CPD7051 Ionization

Base (Required with PSD &CPD Detectors)

BModel 70-201000-001 Base (2-Wire)

23 Sprinkler/Nozzles Open Type (Bulletin 104 & 106)

59





3. PREACTION (SPECIAL) SYS TEMS

3.1 General DescriptionA preaction system employs closed sprinklers and is used to provide fire protection primarily in watersensitive environments where serious water damage would otherwise occur, as a result of a broken

sprinkler or broken sprinkler piping. Preaction systems, during normal conditions, contain no water inthe sprinkler piping. However, they may contain air at atmospheric pressure (i.e., unsupervisedsystems), or a slightly compressed gas (air or dry nitrogen) for the purpose of supervising the leaktightness of a sprinkler system. Usually, supervising of sprinkler piping is done at a pressure of 1 to 2psi (0,1 bar); however, some types of preaction systems require supervising at pressure levels between15 and 50 psi (1,0 and 3,5 bar). For example, when using RELIABLE Model G3 dry sprinklers, whichrequire nearly 7 psi (0,5 bar) of opening pressure, system supervising should employ a pneumaticpressure of approximately 15 psi (1,0 bar). Also, a pneumatic preaction system using a Model A DryPilot Actuator releasing device may require up to 50 psi (3,5 bar) of supervising pressure.

Preaction systems differ from dry pipe systems in that the primary control valve for preaction isactivated by a fire detection device, and not by exclusive operation of a sprinkler head in the systempiping, as is the case when a dry pipe valve is the primary control valve.

When a fire is detected by a preaction system, the primary control valve is opened to allow water flowinto the sprinkler piping in readiness for possible subsequent opening of one or more sprinklers, i n theevent the fire cannot be extinguished by hand-held means. With the flow of water into the sprinklersystem piping, alarm devices are activated. This type of system is often referred to as aSINGLE-INTERLOCK PREACTION SYSTEM, and it is used to provide fire protection in computerrooms, libraries, museums, and telephone equipment rooms. When local codes permit and FactoryMutual Approval is not required, it may be desirable to arrange electrical detectors in a cross-zonedarray. This arrangement (see Section 1.4.1.2) will prevent a false activation of one detector fromcausing water to flow into the sprinkler piping prematurely since two detectors must operate beforewater will flow.

Certain design conditions may exist which require that a system be arranged as a

DOUBLE-INTERLOCK PREACTION SYSTEM. A large refrigerated storage area, where temperaturesare below freezing, is an example. Double-interlock systems can also be used in museums andelectronic equipment rooms. In contrast to single-interlocking, double interlocking prevents flow ofwater into a sprinkler system, until both a detecting device and a sprinkler head are operatedsimultaneously. Operation of either a detector or a sprinkler will produce an alarm, but is insufficient toproduce water flow into the system. When freezing refrigerated systems are protected by a preactionsystem, double-interlocking assures that once water flows into the system, it will continue to flowthrough one or more open sprinklers. This minimizes the possibility of ice blockage which could occurwith a single-interlock system that holds the water statically until a sprinkler operates.

60



TheFire Protection Handbook , published by the National Fire Protection Association (NFPA), contains acomprehensive description of preaction systems.

The water supply to each preaction system is controlled by a primary control valve which is usually adeluge valve. Deluge valves manufactured by RELIABLE are described in Section 1.1.1 and 1.1.2. Onoccasion, a dry pipe valve (see Section 1.1.3) may be used as the primary control valve for aNON-INTERLOCK PREACTION SYSTEM. With this arrangement, a detector operating first will causewater to flow into the sprinkler piping in readiness for the operation of a sprinkler (just like asingle-interlock system). However, whenever a sprinkler head operates first, this system will respond asa dry pipe system with water flow from the sprinkler within 60 seconds. More information on this type ofcombined dry pipe preaction system is provided in Section 3.3.1.

3.2 Hydraulic (Wet Pilot) Activation

3.2.1 Single-Interlock Type

Wet pilot line operation is the simplest and least costly method for arranging a preaction system. Theclosed, quick response sprinklers in the pilot line serve as heat detectors over the area to be protected.The pilot line contains water at the same pressure as the water in the top chamber or push rod chamberof RELIABLE Deluge Valves (see Figures 1 or 2). Pilot line sprinklers function as both thermal detectors

and releasing devices, and when one or more operate, the resulting water discharge and pressure lossin the chamber of the deluge valve causes it to open and allow water flow into the sprinkler systempiping. The sprinkler system is now in readiness for conditions that cause a sprinkler head to open andimmediately discharge water on the fire. Note that water discharge from a pilot line sprinklercontributes little toward fire control. When quick response sprinkler heads are used, quick responsepilot heads should have a lower temperature rating.

Manual emergency pull stations (see Section 1.2.4.1) can provide a remote hydraulic method ofcausing water flow into the sprinkler piping when visual indications of fire precede thermal indications.

A wet pilot line installation is subject to the following restrictions:

a) It is not to be installed in an area subject to freezing.

b) It is not to be installed in an area where temperatures in excess of 150°F (66°C) areanticipated.

c) NFPA Pamphlet No. 13, or the Authority Having Jurisdiction, should be consultedfor pilot sprinkler spacing requirements.

d) It is to be installed in accordance with the following table. See the Appendix Section 4.1for the combination of height and distance limitations


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The trimmings for Model A, B, and BX Deluge Valves are arranged for rapid, compact attachment, andserve as connection points to alarm and other devices.

All RELIABLE Deluge Valves are listed and approved by Underwriters Laboratories, Inc., and FactoryMutual Research Corp. when used with the above trim sets.

Supervision of a hydraulic preaction system may not be required. However, when supervision isrequired, a riser check valve must be installed on the system side of the deluge valve to prevent thesupervising pressurized gas (air or dry nitrogen) from escaping through the alarm line of the deluge

valve. A riser check valve is not required, when supervision of the system is not necessary. Supervisingpressure provided by a RELIABLE Model B or C Compressor Panel (see Section 1.4.2.2.1) or a ModelC Pressure Maintenance Device (see Section 1.4.2.2.2) requires the check valve to be capable ofleak-tight sealing for a pressure of 2.0 psi (30 to 40 oz/in2 (0,15 bar)).

This system is not shown in detail because of its limited use. To order this system, use thewet deluge system. If supervised, you must add a check valve and supervisory airequipment.


Average SupplyPressure At Valve

Maximum Height of Wet Pilot Line Above Deluge ValveFeet (Meters)

psi bar 2½″ (65mm) 4″ (100mm) 6″ (150mm)

20 1,4 7.7 (2.3) 7.7 (2.3) 10.8 (3.3)

40 2,8 12.3 (3.8) 18.4 (5.6) 21.5 (6.6)

60 4,2 21.6 (6.6) 27.8 (8.5) 32.3 (9.8)

80 5,6 30.8 (9.4) 37.0 (11.3) 43.1 (13.1)

100 7,0 43.1 (13.1) 44.6 (13.6) 50.8 (15.5)

120 8,4 53.9 (16.4) 52.4 (15.9) 58.5 (17.8)

140 9,8 67.8 (20.7) 66.2 (20.2) 75.5 (23.0)

160 11,3 80.1 (24.4) 78.5 (23.9) 81.6 (24.9)

175 12,1 92.4 (28.2) 84.6 (25.8) 84.7 (25.8)

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63



3.3 Pneumatic (Dry Pilot) Activation

3.3.1 Non-Interlock Type

Dry pilot line operation of this type is theleast costly pneumatic preaction system.This non-interlock system will respond as

a true preaction system whenever a pilotline quick response sprinkler (heatdetector) operates before a systemsprinkler. However, if a system sprinklershould operate first, then the system willrespond exactly like a dry pipe system.When a sprinkler head operates, as theresult of being damaged, the inherentsafeguarding provided by a preactionsystem against accidental waterdischarge does not exist with this system.When water damage, due to accidental

discharge would be a negligible factor,this preaction system can be quite costeffective.

Pilot line pressure is maintained at a level somewhere between 20 and 50 psi (1,4 and 3,5 bar), and issimultaneously the pressure in the sprinkler system piping. A Model A Compressor (see Bulletin 275for proper sizing) and Model B-1 Pressure Maintenance Device should be used to provide this level ofpressure. If a compressed air system is constantly available on the site, than a Model A-2 PressureMaintenance Device (see Section 1.4.2.1.2 for maintenance device information) should be used tosimultaneously supply the pilot line and sprinkler piping.

Maintaining pneumatic pressure, according to Table 1, will hold a RELIABLE Dry Pipe Valve (primarycontrol valve) closed (see Section 1.1.3). This same level of pressure will also hold a Model A Dry PilotActuator releasing device (see Section 1.2.2) closed, preventing system pressure from entering theintermediate chamber of the dry pipe valve. When one or more pilot heads open, due to fire conditions,the loss of pilot line pressure allows the dry pilot actuator to open. This sufficiently pressurizes theintermediate chamber of the dry pipe valve causing it to release and flow water into the sprinklersystem. Subsequent opening of one or more sprinkler heads will soon result in water flow on the fire.


Figure 1 Model A Dry Pipe Valve - Model A Trimmings

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Preaction SystemPneumatic (Dry Pilot) Activation

Non-Interlock Type









G Model EPS 10-1 (SPDT)Model EPS 10-2 (DPDT)


15 Sprinklers D Closed Type(Bulletin 110, 117, 131, 136, etc.)



18 Air Compressor I Mod. A, 13, 3

4, 112 hp (Bulletin 275)

19 Pressure Maintenance Device D Mod. B-1, Use with Item No. 18(Bulletin 251)


21 Dry Pipe Valve D Mod. A, 2½″ THD x THD or GRV x GRV

Mod. D, 4″ or 6″ FLNG x FLNG or FLNG x GRV

22 Basic Trim Set(Dry Pipe Valve)

D Mod. A, (Bulletin 353)Mod. D, (Bulletin 350)

25 Low Pressure Switch(10-100 psi)

G Model EPS 40-1(SPDT)

26 Air Pressure Gauge D Mod. UA 0-250 psi (Bulletin 206)

28 Dry Pilot Actuator D Mod. A (Bulletin 504)

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3.3.2 Single-Interlock Type

Dry pilot single-interlock preaction systems contain several components that differ from those innon-interlock systems. These add to the cost of a preaction system; however, they do providedesirable features described below.

The primary control valve is a deluge valveinstead of a dry pipe valve, as employed inthe non-interlock system (see Section3.3.1). The operating characteristics ofRELIABLE Deluge Valves are discussed inSection 1.1.1 (2 ½″ Model A) and Section1.1.2 (4″ & 6″ Model B & BX).

Sprinkler piping in single-interlock systemscan be effectively supervised by using thesame air supply required for pressurizationof the dry pilot actuator (See Section1.4.2.1). Loss of the supervising pneumatic

pressure, due to a damaged sprinkler or pipeline, will not cause water flow through a delugevalve and into the system piping. It will,however, produce a trouble conditionannunciation.

A dry pilot line of closed sprinklers (thermal

detectors) is located over an area to beprotected, and is pressurized withcompressed gas, such as air or drynitrogen. This pressurized pilot line isconnected to a Model A Dry Pilot Actuatorreleasing device (see Section 1.2.2), whichfunctions like a small dry pipe valve. Whilethe pilot line is pressurized adequately, theactuator remains closed keeping sufficientwater pressure in the top chamber or pushrod chamber of a RELIABLE Deluge Valve(see Figure 1 or 2) to keep it closed.

When a pilot line sprinkler operates, thepneumatic pressure is reduced until theactuator is no longer able to hold waterpressure in the top chamber or push rodchamber. The deluge valve is thenreleased to open and flow water into thesprinkler system. A dry pilot line is only forthermal detection purposes.

Figure 1 Model A Deluge Valve withSingle-Interlock Preaction, Dry Pilot Line Trim

Figure 2 Model BX Deluge Valve with Single-InterlockPreaction,

Dry Pilot Line Trim

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It will not discharge water from any of its opened sprinklers. Model A Manual Emergency Pull Stations(see Section 1.2.4.1) can be incorporated into the dry pilot line, and they should be piped so thatdischarging pneumatic pressure is directed away from the person operating the station. It is veryimportant that suitable automatic pressure maintenance equipment (see Section 1.4.2.1) be used tosafeguard against accidental deluge valve operation due to possible pressure leakage in the dry pilotline. The dry pilot line trim set, required when pneumatically activating a RELIABLE Model A, B, or BX

Deluge Valve, includes a Model A Dry Pilot Actuator releasing device and a low pressure switch forsupervision purposes. This switch is factory set to activate a warning annunciator whenever pressurefalls below 25 psi (1,7 bar). The switch can be adjusted to other pressure levels, if required.

Appropriate pneumatic pressures for dry pilot lines used with RELIABLE Deluge Valves are given bythe following table:

When Model G3 or G3FR Dry Sprinklers are used, a minimum of 15 psi (1.0 bar) pneumatic pressure

should be used.


Water Pressure, psi (bar) Pneumatic Pressure to be Pumped into Dry Pilot Line, psi (bar)

Maximum Not Less Than Not More Than

20 (1,7) 10 (0,7) 20 (1,4)

50 (3,5) 15 (1,0) 25 (1,7)75 (5,1) 20 (1,4) 30 (2,1)

100 (7,0) 25 (1,7) 35 (2,4)

125 (8,6) 30 (2,1) 40 (2,8)

150 (10,3) 35 (2,4) 45 (3,1)

175 (12,1) 40 (2,8) 50 (3,5)

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Preaction SystemPneumatic (Dry Pilot) Activation

Single - Interlock Type










Mod. BX, 4″ or 6″ FLNG x FLNG or FLNG xGRV

4 Preaction TrimSingle-Interlock Dry Pilot

D Mod. AMod. B & BX

6 Drain Manifold (Optional) D 2½″ Preaction or 4″ / 6″ Preaction




15 Sprinklers D Closed Type

(Bulletin 110, 117, 131, 136, etc.)



18 Air Compressor D Mod. A, 13, ¾, 1½ hp (Bulletin 275)

D Mod. A, 16 hp (Bulletin 707, Section 1.4.2)


D Mod. B-1, Use with Item No. 18(Bulletin 251)


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72

3.4 Electric Activation (Supertrol System)Electric activation of a primary control valve requires heat, smoke, or flame detectors (see Sections1.3.2, 1.3.3, and 1.3.4), which communicate electrically with an electrical releasing control panel (seeSection 1.4.1). Electrically activated preaction systems are generally more costly than hydraulic andpneumatic systems. However, electrical systems offer the greatest number of features, designflexibility, speed of operation, and ability to interface with other building services systems.

When the detection section of an electrical preaction system senses the presence of fire, an electricalsignal to the releasing control panel immediately activates an alarm bell circuit and energizes open anormally closed solenoid releasing valve (see Section 1.2.3). The releasing control panel willelectrically latch a solenoid releasing valve in the open position, and resetting it closed can only beaccomplished by operating a resetting switch in the panel, after all detectors and electrical manualemergency pull stations have been reset.

Manual emergency pull stations (see Section 1.2.4.2) are incorporated electrically into detectorcircuits. The single pole, Model BNG-1 is normally used; however, when a releasing control panel isarranged with the briefly delaying characteristic of cross-zoned operation (see Section1.4.1.2), thenthe two-pole, Model BNG-1F station is required. The two-pole station enables activation of bothdetector circuits simultaneously; circumventing the delaying characteristic by causing immediatewater flow into the system when fire is visually observed.

A releasing panel must have the capacity to supervise constantly the power supply, detector, alarmbell, and solenoid releasing valve electrical circuits; and to provide visual and audible troubleannunciation whenever electrical faults occur in these circuits.

Releasing control panels accept both Class A and Class B detector circuit wiring. Class A wiring,required by Factory Mutual, uses two (2) wires to each detector, and two (2) wires returning to thepanel. With Class A wiring, a control panel will sound and display trouble signals, and simultaneouslyoperate an alarm bell and solenoid releasing valve while single and some multiple unrepaired wiringfaults exist.

Class B detector circuit wiring uses two (2) wires to each detector and an end-of-line resistor. WithClass B wiring, the control panel will sound and display trouble signals, but may not operate an alarm

bell and solenoid releasing valve while an unrepaired wiring fault exists.See page 53 for illustrations of Class A and Class B Wiring.


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76





Preaction SystemElectrical Activation

Non-Interlock Type











9Solenoid Releasing Valve C Mod. 73218BN4UNLVNOC111C2 24VDC

(Normally Closed)

10 Releasing Control Panel(Optional)

A Mod. RP-1001

Batteries (2 Required) A Mod. PS 12120 (90 Hrs. Back-up) (FM)

Mod. PS 1270 (60 Hrs. Back-up)




Mod. 4XZM Zone Relay Module




Mod. P2415-24VDC / Polarized Horn Strobe

12 Trouble Annunciator G Mod. SSM-24-6-24VDC / Polarized Bell



A Mod. BNG-1 (SPDT)1 & 2 Area Detection

Mod. BNG-1F (DPDT) Cross Zone Detection

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78


(Future)




Non-Interlock Type








Thermal H Mod. 302 Pendent / Interior, 135°F, 200°F

Thermal Mod. 302H Horizontal / Interior, 135°F, 200°F


Adapter Mod. AP-P Adapter Plate (Mod. 302 Only)

Smoke B Mod. PSD7155 Photoelectric

Smoke Mod. CPD7051 Ionization


B Mod. 70-201000-001Base (2-Wire)



18 Air Compressor D Mod. A,13,

34, 1

12 hp (Bulletin 275)

D Mod. A, 16 hp (Bulletin 707, Section 1.4.2)


D Mod. B-1, Use with Item No. 18(Bulletin 251)


21 Dry Pipe Valve D Mod. A, 2½″ THD x THD or GRV x GRV

Mod. D 4″ or 6″ FLNG x FLNG or FLNG x GRV

22 Basic Trim Set(Dry Pipe Valve) D Mod. A (Bulletin 353)Mod. D (Bulletin 350)

23 Accelerator (Optional) D Mod. B1 (Bulletin 320 & 322)

25Low Pressure Switch(10-100 psi)

GMod. EPS 40-1 (SPDT)

26 Air Pressure Gauge D Mod. UA 0-250 psi (Bulletin 206)

79







3.4.2 Single-Interlock Type Supertrol Systems

Electric single-interlock preaction systems contain several components that differ from those innon-interlock systems. These add to the cost of a preaction system; however, they do provide desirablefeatures described below.

The primary control valve is a deluge valve instead of a dry pipe valve, as employed in the non-interlocksystem (see Section 3.4.1). The operating characteristics of RELIABLE Deluge Valves are discussedin Section 1.1.1 (2½″ (65mm) Model A) and Section 1.1.2 (4″ & 6″ (100mm and 150mm) Model B &BX).

Sprinkler piping in single-interlock systems can be effectively supervised by means of a Model B or CAir Compressor Panel or a Model C Pressure Maintenance Device (see Section 1.4.2.2). Loss of the2.0 psi (0,14 bar) supervising pneumatic pressure, due to a damaged sprinkler or pipe line, will notcause water flow through a deluge valve and into the system piping. A significant loss of pneumaticpressure will activate a trouble annunciating device when system pressure falls below 7 psi (0,5 bar).

When one (1) electrical detector senses the presence of fire, the electrical releasing control panelactivates fire alarm devices and latches the solenoid releasing valve in the open position. (Note thatarranging detectors in a cross-zoned pattern will require operation of two (2) detectors before thesolenoid valve can open.) The solenoid releasing valve (Figures 1 & 2), when closed, is preservingsufficient water pressure in the top chamber or push rod chamber of a RELIABLE Deluge Valve to holdit closed. Opening the solenoid release valve relieves that water pressure, and thereby opens thedeluge valve to allow water flow in the sprinkler system.

To fully operate a cross-zoned , single-interlock system, two (2) electrical detectors must activate, anda sprinkler head must open. The operating sequence of a cross-zoned system follows. During theinitial stages of a fire, smoke or heat activates the first detector which causes the panel to produce alocal alarm and an alarm at the main fire alarm panel. Electrical relays inside the releasing control panelcan be used to shut down air moving equipment and computer systems or activate security doors andother electrical devices, when the panel goes into this “first alarm” condition. Subsequent activation ofa second, nearby (adjacent) detector will cause the panel to energize the solenoid valve open andrelease pressure in the top or push rod chamber of the deluge valve which causes the clapper tounlatch. This immediately sends water into the sprinkler piping.


Figure 1 Model BX Deluge Valve with Electrical Actuation Preaction Trim

01/01

81



Water flowing into the sprinkler piping willsimultaneously produce water pressure in thealarm trim piping of the deluge valve, acondition that causes the transfer of drycontacts in one or more pressure switchesmounted in this alarm line. Each pressure

switch can electrically control the shutdown orstart-up of equipment, such as, computers orother “second alarm” devices, respectively.The flow of water into the sprinkler pipingeffectively converts the heretofore dry systeminto a wet pipe system. In the event the firesubsequently produces sufficient heat tooperate a sprinkler head, water will flow fromthat sprinkler on the fire.

The major benefits of a single-interlockpreaction system, when compared witha wet-pipe system, are as follows:

A. A fire alarm sounds prior to the operation of a sprinkler which may enableextinguishing the fire by hand-held means before the operation of any sprinkler headoccurs.

B. A trouble annunciator signals whenever the integrity of piping or sprinklers isaccidentally or intentionally disturbed; however, no water flow or water damage will

result at this time.

C. Speedy detection and an early fire alarm is provided by fire detectors, without thedelay of water delivery time, in the event of a fire. Note that with a wet-pipe system,the fire alarm is produced only after water has begun flowing from an operatedsprinkler head.


Figure 2 Model A Deluge Valve withElectrical Actuation Preaction Trim

01/01

82



83


Model B/BX 4″ & 6″

Model A 2½″

* When Model G3 or G3FR Dry Sprinklers are used (Ref. Section 3.1) or when supervisorypressures above 15 psi are preferred, substitute the Model A-2 Pressure Maintenance Device

(Item 19) and the Low Pressure Switch (Item 25) for Item 17.



84


01/01







(E) United Electric Controls, Co.(F) Meggitt Avionics(G) System Sensor, Division of Pitway Corp.(H) Thermotech, Inc.






4Preaction TrimSingle-Interlock - Electric


6 Drain Manifold (Optional) D 2½″ Preaction or 4″ /6″ Preaction





A Mod. RP-1001


Mod. PS 1270 (60 Hrs Back-up)




Mod. 4XZM Zone Module




Mod. P2415-24VDC / Polarized Horn/Strobe












(E) United Electric Controls, Co.



12Trouble Annunciator(Optional)

GMod. SSM-24-6-24VDC / Polarized Bell

Mod. P2415-24VDC / Polarized Sounder


A Mod. BNG-1 (SPDT)1 & 2 Area Detection










B Mod. 70-201000-001Base (2-Wire)

15 Sprinklers D Closed Type (Bulletins 110, 117, 131, 136, etc.)

17 Supervisory PressureSupply (Optional)

D Mod. B Air Compressor Panel 120 VAC / 60HZ

Mod. C Air Compressor Panel 220 VAC / 50HZ

Mod. C Pressure maintenance Device requires 40to 100 psi Supply

19Pressure MaintenanceDevice (Optional)

D Mod. B-1 (Bulletin 251)

20 Air Compressor withTank

I Mod. 1 HAB-11T-M100X, 16 hp 2 Gal. Tank

25 Low Pressure Switch(10-100psi) (Optional)

G Mod. EPS 40-1 (SPDT)

01/01

85




86


1½″ Preaction SystemElectrical Activation

Single-Interlock Type





(E) United Electric Controls, Co.(F) Meggitt Avionics(G) System Sensor, Division of Pitway Corp.(H) Thermotech, Inc.


2 Deluge Riser Assembly D/C Model H 1½″ Thd x Thd (Bulletin 507)

4Preaction TrimSingle-Interlock-Electric

DModel H (Bulletin 719)


A Model RP-1001

Batteries (2 Required) A Model PS 12120 (90 Hrs. Back-up) (FM)

Model PS 1270 (60 Hrs. Back-up)

Optional Accessories A Model 4XTM Transmitter ModuleModel 4XLM Annunciator Driv. Module

Model RZA-4X Remote Annunciator

Model 4XZM Zone Module

11 Alarm Annunciator (Optional) G Model SSM-24-8-24VDC/Polarized Bell

Model SSM-24-10-24VDC/Polarized Bell




87


1½″ Preaction SystemElectrical Activation









G Mod. SSM-24-6-24VDC / Polarized Bell


13 Manual Emergency Station(Optional) A Mod. BNG-1 (SPDT)1 & 2 Area Detection










B Mod. 70-201000-001Base (2-Wire)


17 Supervisory PressureSupply (Optional)

D Mod. B Air Compressor Panel 120 VAC / 60HZ

Mod. C Air Compressor Panel 220 VAC / 50HZ

Mod. C Pressure Maintenance Device requires 40to 100 psi Supply

20Air Compressor with Tank(Optional)

IMod. 1 HAB-11T-M100X, 1

6 hp 2 Gal. Tank(Use with Mod. C Pressure Maintenance Device)




The Reliable Automatic Sprinkler Co., Inc. 525 North MacQuesten Parkway, Mount Vernon New York 10552

88

3.4.2.1 PrePaK Systems

The Reliable PrePaK Preaction Systems are completely self-contained supervised preaction systemsfor UL Applications that can be readily installed within a floor space of 4 or 7.5 square feet (0.37 or0.7m

2). Installation for the PrePaK (not including exterior devices, i.e., detectors and alarm bells)

requires just three piping connections: a supply line, a system line, and a drain line. Locations of thesepiping connections are shown in Reliable Bulletins 723, 724, and 725 Figure 1. Also two 120 VAC

electrical supply connections are required for the Potter Panel and the air compressor.Each Reliable PrePaK Preaction System contains the following components within their gauge 12 steelenclosure:

• One of the following Reliable Deluge Valves:

– Model H 1½″ (40mm) Deluge Riser Assembly (see Bulletin 507). – Model A 2½″ (65mm) Deluge valve (see Bulletin 503). – Model BX 4″ (100mm) or 6″ (150mm) deluge valve (see Bulletin 501).

• One Reliable Model A-2 Pressure Maintenance Device (see Reliable Bulletin 251)

• One Model G Right-Check™ Valve, sizes 2½″ - 6″ (see Bulletin 806)

• One Gast Tank-Mounted Air Compressor

– Model 1 HAB-11T-M100X

16

hp with 2 Gal. (7.6 liters) Tank (1½″

and 2½″

PrePaK) – Model 5HCD-108 M550X ¾ hp with 10 gal. (37.9 liters) Tank (4″ and 6″ * PrePaK)

* For 6″ systems, a 1 ½ hp compressor is available as an option.

• One Potter Model PFC-4410 Fire Alarm/Releasing Panel (see Potter Manual #5403527)

• All required piping, fittings, gauges, electrical connectors, and electrical devices to utilize thesystem in single interlock, single-interlock cross-zoned, double-interlock and double-interlockcross-zoned applications.

The Reliable PrePaK Preaction Systems utilize the Potter Model PFC-4410 Fire Alarm Releasing Panel.This fully programmable, microprocessor-based releasing panel is Underwriters Laboratories, Inc.Listed and is in compliance with NFPA 13 and NFPA 72.

Because the PFC-4410 is totally zone and output programmable, the Reliable PrePaK can be utilized i nfour different preaction applications without having to rewire any of the factory installed devices. Oncethe previously described connections are completed, the 24 VDC detectors, output devices, and relaycontacts may be connected to achieve the desired system implementation.

The PrePaK Preaction System can be used in both single and double-interlock applications. ReliableSingle and Double-Interlock Preaction Systems are designed for water sensitive areas which requireprotection from inadvertent water flow into the sprinkler system piping.

The major benefits of Single or Double-Interlock PrePaK Preaction Systems are described in Bulletins723, 724, 725 and in Section 3.1 of this manual.

ApprovalsThe Reliable PrePaK Preaction Systems are Underwriters Laboratories Inc. (UL) Listed, and ULCertified for Canada*, as an assembled unit, in the “Special System Water Control Valves-AssembledUnits” category (VKYL). The system components within the PrePaK enclosure are Factory MutualApproved as Supertrol Single-Interlock Preaction Systems and Supertrol Double-Interlock Type DRefrigerated Area Preaction Systems for use in refrigerated rooms or buildings. (Refer to respectivePrePak Bulletins for New York City MEA approvals, guidelines and limitations.)

* Electrical devices and control panel must be specified to meet Canadian requirements. This option isavailable.

Technical DataThe Reliable PrePaK Preaction Systems are rated for a minimum supply pressure of 20 psi (1,4 bar)and a maximum supply pressure of 175 psi (12 bar).01/01





3.4.3 Double-Interlock Type Supertrol Systems

Electric double-interlock preaction systems can be accomplished with several different arrangementsof all the same components that comprise single-interlock preaction systems. A double-interlocksystem is defined as a system which requires the operation of both a detector and a sprinkler beforewater is able to flow through a primary control valve (deluge valve) into the sprinkler system piping.Double-interlock systems are treated as a dry pipe system and therefore are more costly to install thanthe single-interlock types.

Recall that single-interlock systems require only the operation of one (1) or two (2) (cross-zoned)detectors to cause water to flow into the sprinkler piping, making the system ready (wet) for when asprinkler subsequently operates. This brief time of waiting for a sprinkler operation could result in animpairment to fire protection if ambient temperature surrounding the sprinkler system is below freezing.Not only could ice forming inside the piping become an impairment, it could also cause extensivedamage to the sprinkler system and the area/materials being protected by the system.

Consequently, double-interlock arrangements were developed for fire protection that has as muchassurance as possible that water would continually flow through the deluge valve and open sprinklerswhen subfreezing conditions existed. These are the systems of choice for refrigerated warehouses.

Electrical detector activation of the releasing control panel for electrical double-interlock systems isaccomplished in the same manner as activation of single-interlock systems, and the reader is referredto Section 3.4.2 for a description of electrical activation.

3.4.3.1 Type ADouble-Interlock Supertrol System (Interlocked Dry Pilot Actuator & Solenoid ValveReleasing Devices)

SUMMARY OF OPERATION

The Model A Compressor and the Model B-1 Air Maintenance Device combine to provide air pressurein the sprinkler piping at an appropriate level between 20 and 50 psi (1,4 and 3,5 bar). The purpose of

this air is to maintain the Model A Dry Pilot Actuator releasing device in the closed position, therebypreventing the possibility of water flowing from the push rod or top chamber of the deluge valve. Thedry pilot actuator functions as described in Section 1.2.2. However, a tank mounted air compressor,supplying air pressure between 50 and 100 psi (3,5 and 6,9 bar) to the Model A-2 pressuremaintenance device, is recommended.

In series with and upstream of the dry pilot actuator is a second releasing device identified as thesolenoid valve. The solenoid valve is activated electrically when a manual electrical emergency stationor a thermal or smoke detector operates and signals the releasing control panel to open the solenoidvalve.

For this system, the double-interlocking feature requires both the dry pilot actuator and the solenoid

valve to be open simultaneously before the deluge valve will open to permit water flow into the sprinklersystem. When only a sprinkler head operates (or is broken), air pressure will be lowered which opensthe dry pilot actuator and activates the low-pressure switch causing only an alarm annunciation. Therewill be no waterflow into the sprinkler system, as long as the solenoid valve remains closed.


90









Double - Interlock Type A








2 Deluge Valve D


Mod. BX, 4″

or 6″

FLNG x FLNG or FLNG x GRV5 Preaction Trim

Double-Interlock Type AD Mod. B&BX (Bulletin 710)

6 Drain Manifold (Optional) D 4″ /6″ Preaction





A Mod. RP-1001


Mod. PS 1270 (60 Hrs Back-up)




Mod. 4XZM Zone Module

11Alarm Annunciator(Optional)

G Mod. SSM-24-8-24VDC / Polarized Bell




01/01

93




94


(Future)





3.4.3.2 Type D Double-Interlock Supertrol Systems(Interlocked Detector & Supervisory Pressure Switch)

SUMMARY OF OPERATION

The Type D Double-Interlock Supertrol System contains a pressure switch which activates one detectorcircuit in a cross-zoned panel whenever supervising dry nitrogen gas or air pressure in the sprinklerpiping drops below 5 psi (0,4 bar). Normally, the Model A-2 Pressure Maintenance Device wouldmaintain the pressure at 7 to 10 psi (0,5 to 0,7 bar) for supervising the sprinkler system integrity. Aspecial regulator will be required on nitrogen tanks to reduce their 2000 psi (138 bar) pressure down toapproximately 175 psi (12 bar), which is the maximum level required for supplying the Model A-2device. Refer to Section 3.4.3.3 and Bulletin 253 for information describing Reliable’s NitrogenRegulating Device.

When a sprinkler head operates (or is accidentally broken), the resulting reduction of pressure at the lowpressure switch will send a pneumatic signal to the RP1001 Releasing Control Panel causing the panelto annunciate a “first” alarm. However, there will not be waterflow into the sprinkler piping. Replacing the

broken sprinkler, permitting the pressure to return to the normal 7 to 10 psi (0,5 to 0,7 bar), and pushingthe reset button in the RP-1001 Releasing Control Panel will restore the system to a fire-ready condition.

However, in a fire scenario, the combined operation of a sprinkler and at least one (1) detector on thesecond detector circuit will cause the RP-1001 Releasing Control Panel to activate the solenoid valve,thereby releasing the deluge valve and flowing water into the piping and out the open sprinkler head.Simultaneously, the waterflow pressure switch mounted in the alarm line trim of the deluge valve willoperate, and it will be used to annunciate a “second” alarm (waterflow) condition. This switch (ormultiples thereof) can also be used to start or stop various items of electrical equipment.

It is likely that during a fire, a detector would operate before a sprinkler. Again, the RP-1001 ReleasingControl Panel would signal a “first” alarm without permitting waterflow into the system. After the fire had

developed sufficient heat to also operate a sprinkler, and subsequently the low pressure switch, onlythen would water flow into the sprinkler system and out of the open sprinkler. Of course, the various“second” alarm actions would also occur.

The pneumatic system supervision feature has already been discussed. Supervision of variouselectrical circuits, such as the detector, alarm bell, solenoid valve, and power supply circuits areannunciated by a common trouble bell and individual circuit lights on the RP-1001 Releasing ControlPanel.

APPROVALS

The 2½″ (65mm), 4″ (100mm), and 6″ (150mm) Supertrol Type D Double-Interlock Preaction Systems

are Factory Mutual Approved for use in refrigerated rooms or buildings. Refrigerated area sprinklersystems are FM Approved as complete systems. Only the approved components for this system aslisted in this bulletin can be used in combination. Systems are FM Approved for use with thermaldetectors and Class A detector circuit wiring only.

The components of the Supertrol Double-Interlock Preaction Systems are individually listed byUnderwriters’ Laboratories of Canada. The 2½″ (65mm), 4″ (100mm), and 6″ (150mm) Type DDouble-Interlock Preaction Systems are Underwriters Laboratories Listed in the Special System WaterControl Valves Double-Interlock Type (VLJH) Category.


96




(Future)

01/01

97



98

Model BX 4″ & 6″

Note: A Constant source of pressure is required. A tank mounted air compressor isrecommended . Dry nitrogen is an option for freezer applications.

Model A 2½″






Double - Interlock Type D








2 Deluge Valve D Model A, 2½″ THD x THD or GRV x GRV

Model B, 4″ or 6″ FLNG x FLNG or FLNG x GRV

Model BX, 4″ or 6″ FLNG x FLNG or FLNG x GRV

5 Preaction TrimDouble-Interlock Type D

D Model A (Bulletin 713)Model B&BX (Bulletin 714)

6 Drain Manifold (Optional) D 2½″ Preaction, 4″ /6″ Preaction


G Model EPS 10-1 (SPDT)Model EPS 10-2 (DPDT)

8 Mechanical Alarm (Optional) D Model C (Bulletin 612 & 613)


A Model RP-1001


Model PS 1270 (60 Hrs Back-up)


Model 4XLM Annun. Driv. Module

Model RZA-4X Remote Annun.

Model 4XZM Zone Module

11 Alarm Annunciator (Optional) G Model SSM-24-8-24VDC / Polarized Bell


Model H 12/24-24VDC Polarized Horn


01/01

99


*Priming water should not be used in systems maintained at temperatures below 32°F (0°C) .



100

01/01


(Future)



101

01/01



Double - Interlock Type D







12Trouble Annunciator(Optional)

GModel SSM-24-6-24VDC / Polarized Bell



A Model BNG-1 (SPDT)1 & 2 Area Detection


Thermal H Model 302 Pendent / Interior, 135°F, 200°F

Thermal Model 302H Horizontal / Interior, 135°F, 200°G






Model 70-201000-001Base (2-wire)


19Pressure MaintenanceDevice

DModel A-2, Use with Item number 20(Bulletin 251)

20 Air Compressor I Model 1HAB-11T-M100X 16″ & 2 Gal Tank

Model 5LCA-11T-M550X ¾″ & 20 Gal Tank




102

01/01


Preaction System1½″ Electrical Activation

Double-Interlock Type D




(A) Notifier, Division of Pitway Corp.(B) Fenwal Inc., Division of W. Kidde & Co., Inc.(C) Skinner Valve Division, Parker Hannifin Corp.

(D) The Reliable Automatic Sprinkler Co., Inc.

(E) United Electric Controls Co.(F) Meggitt Avionics(G) System Sensor, Division of Pitway Corp.

(H) Thermotech, Inc.


2 Deluge Riser Assembly D/C Model H 1½ Thd x Thd (Bulletin 507)

5 Preaction TrimDouble-Interlock-Type D

D Model H (Bulletin 720)


A Model RP-1001


Model PS 1270 (60 Hrs. Back-up)


Model 4XLM Annunciator Driv. Module

Model RZA-4X Remote Annunciator





01/01

103

Preaction System1½″ Electrical Activation

Double-Interlock Type D







11Alarm Annunciator (Optional) G Model SSM-24-8-24VDC / Polarized Bell



Model P2415-24VDC Polarized Horn/Strobe


G Model SSM-24-10-24VDC / Polarized Bell



A Model BNG-1 (SPDT)1 & 2 Area Detection


Thermal H Model 302 Pendent / Interior, 135°F, 200°FThermal Model 302H Horizontal / Interior, 135°F, 200°F

Thermal Mod. 302AW Pend./All Weather, 135°F, 200°F





Model 70-201000-001Base (2-Wire)


20Air Compressor

IModel 1LAA-11T-M100X, 1

6 hp Compressor and 2Gal. Tank (Bulletin 707, Section 1.4.2 & Bulletin720)





01/01

104

General DescriptionReliable Nitrogen Regulating De vices are used to pro vide ni tro gen pres sure in Re li able Supertrol Dou -ble-Interlock Preaction Type D Systems or any other Reliable system using a Reliable Model A-2 orModel C Pressure Main te nance De vice. The ni tro gen sup ply is ob tained from a high pres sure nitrogencylinder.

In stalled at the su per vi sory pres sure port of the sys tem, the Ni tro gen Regu lat ing De vice in cludes a sin -gle stage pressure regulator equipped with high pressure inlet and low pressure outlet gages. As thenitrogen is gradually depleted and the pressure inside the cylinder drops, the low pressure regulatedoutput remains stable. Connected to the regulator is a coiled copper tubing with connector andadapter for a flexible and direct connection to the above mentioned Reliable pressure maintenancedevices.

If desired, an optional adjustable low pressure switch kit is available. Installed between the NitrogenRegulating Device out let and the Model A-2 or Model C Pressure Maintenance Device inlet, it sig nals acontrol panel such as the Notifier RP1001 the approaching depletion of the nitrogen supply.

The Re li able Ni tro gen Regu lat ing De vice is avail able as sem bled, ready for con nec tion to the sys tem.

Figure 1 Nitrogen Regulating Device shown with optional low pressure switch kit

3.4.3.3 Nitrogen Regulating Device

ItemNo.

PartNumber Description

Qty.Req’d

1 6999991570 Pressure Regulator 1

2 98085630 Connector, ¼″ Tubing x ¼″ NPT 2

3 98768004 Tubing ¼″ O.D. X 6 ft. - Copper 1

4 98048025 Reducer Bushing, ¾″ x ¼″ - Galv. 1

5 6501200100 Optional - Low Pressure Switch Kit 1



Nitrogen Regulating DeviceP/N 6304030101 (Item 5 included)P/N 6304030100 (Without Item 5)

Technical DataThe Reliable Nitrogen Regulating Device consists of components shown in Fig. 1.

The single-stage pressure regulator, made of brass, has a 200-4000 psi (13,8 - 275,8 bar) cylinderpressure gauge and a 10- 200 psi (0,7 - 13,8 bar) out let pres sure gauge. A coiled ¼″ copper tubing al -lows for flexibility in connecting the Device to the system air supply inlet.

The low pressure switch kit consisting of galvanized tee, outlet nip ple, branch nipple, branch couplingreducer and adjustable low pressure switch is optional. Mounted between the Nitrogen RegulatingDevice and the supervisory pressure inlet, it sends a warning signal to replace a nitrogen cylinder thatis approaching a preset pressure depletion level.

The high pressure nitrogen cyl in der can typi cally be rented from a lo cal source, with rental fees varyingby supplier and cylinder sizes. Typical cylinders are:

Cylinder Size: “Q” “S” “K” “T”Nitrogen Weight lbs.(kg): 5.50 (2.50) 10.28 (4.66) 16.51 (7.50) 22.01 (9.98)

Nitrogen Volume cu. ft. (m

3

): 76 (2.2) 142 (4.0) 228 (65) 304 (8.6)Pressurized at psig (bar):* 2200 (151.7) 2200 (151.7) 2200 (151.7) 2640 (182.0)

* Note: Initial pressure and thus nitrogen weight and volume can vary slightly. Check with your localsupplier.

When used in conjunction with the Reliable Dou ble-Interlock Type D Pre ac tion Sys tem in a refrigeratedarea, the cal cu lated ni tro gen sup ply in lbs. (kg.) to pres sur ize var i ous sys tem ca paci ties to 10 psig (0,7bar) at different freezer temperatures is as follows:

** Note: When used in conjunction with the Reliable Model A-2 Pressure Maintenance Device hav ingby-pass line open.

The nitrogen used in refrigerated area systems minimizes a possibility of ice buildup and blockage insidethe sys tem pip ing that could pre vent proper sys tem op er a tion. The dew-point of nitrogen compressed to amaximum of 10 psig (0,7 bar) pressure in the Reliable Double-Interlock Type D Preaction System is -52°F(-46.7°C).

The fol low ing list of bul le tins de scribes the sys tems and de vices which are used in con junc tion with thisDevice:

Supertrol Double-Interlock Type DPreaction System 4″ & 6″ (100mm &150mm) size 714

2½″ size (65mm) 7131½″ size (40mm) 720

Control Panel 707/708Model A-2 Pressure Maintenance Device 251Model C Pressure Maintenance Device 252Low Pneumatic Pressure Switch (System Sensor) D770-08-00

SystemCapacity

Freezer Temperature °F (°C)Approx.Fill Time(min.)**

20° (-6.7°) 0° (-18°) -20° (-29°) -40° (-40°) -60° (-51°)Gal. (L)

250500

7501000

(946.4)(1892.7)

(2839.0)(3785.4)

4.49 (2.04)8.98 (4.07)

13.47 (6.11)17.97 (39.62)

4.69 (2.13)9.37 (4.25)

14.06 (6.38)18.75 (8.50)

4.90 (2.22)9.80 (4.45)

14.70 (6.67)19.60 (8.90)

5.1310.27

15.4020.54

5.39 (2.44)10.78 (4.90)

16.17 (7.33)21.56 (9.78)

12

34

105


01/01



4. APPENDIX

4.1 Wet Pilot Line Hydraulic Data


106




107




01/01

108






4.2.2 Preaction Valve Trim for Wet, Dry, or Electric Activation,Single or Double-Interlock

Installation measurements in inches for grooved or threaded inlet and outlet

Installation Dimensions in Inches (mm)

Valve A B C D E F G H J K L M N P

4(100)

53 / 4(146)

8(203)

10(254)

231 / 8(587)

191 / 8(486)

211 / 4(540)

311 / 2(800)

201 / 8(511)

301 / 2(775)

101 / 4(260)

121 / 2(318)

141 / 2(368)

147 / 8(378)

161 / 2(419)

6(150)

7(178)

9(229)

111 / 4(286)

267 / 8(683)

18(457)

243 / 8(619)

331 / 2(851)

215 / 8(549)

311 / 2(800)

101 / 4(260)

13(330)

15(381)

147 / 8(378)

161 / 2(419)

01/01

110






01/01

4.2.4 Installation Measurements for 1½″ Deluge/Preaction Assembly112

Preaction Assembly

Deluge Assembly



4.3 Submittal Sheets A, B, C & D

113

Documents

707 Special Hazard and Special Systems Manual