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3. PREACTION (SPECIAL) SYSTEMS

3.1 General Description

A preaction system employs closed sprinklers and is used to provide fire protection primarily in water sensitive 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 in the sprinkler piping. However, they may contain air at atmospheric pressure (i.e., unsupervised systems), or a slightly compressed gas (air or dry nitrogen) for the purpose of supervising the leak tightness of a sprinkler system. Usually, supervising of sprinkler piping is done at a pressure of 1 to 2 psi (0,1 bar); however, some types of preaction systems require supervising at pressure levels between 15 and 50 psi (1,0 and 3,5 bar). For example, when using RELIABLE Model G3 dry sprinklers, which require nearly 7 psi (0,5 bar) of opening pressure, system supervising should employ a pneumatic pressure of approximately 15 psi (1,0 bar). Also, a pneumatic preaction system using a Model A Dry Pilot 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 is activated by a fire detection device, and not by exclusive operation of a sprinkler head in the system piping, 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 flow into the sprinkler piping in readiness for possible subsequent opening of one or more sprinklers, i n the event the fire cannot be extinguished by hand-held means. With the flow of water into the sprinkler system piping, alarm devices are activated. This type of system is often referred to as a SINGLE-INTERLOCK PREACTION SYSTEM, and it is used to provide fire protection in computer rooms, libraries, museums, and telephone equipment rooms. When local codes permit and Factory Mutual Approval is not required, it may be desirable to arrange electrical detectors in a cross-zoned array. This arrangement (see Section 1.4.1.2) will prevent a false activation of one detector from causing water to flow into the sprinkler piping prematurely since two detectors must operate before water 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 temperatures are below freezing, is an example. Double-interlock systems can also be used in museums and electronic equipment rooms. In contrast to single-interlocking, double interlocking prevents flow of water into a sprinkler system, until both a detecting device and a sprinkler head are operated simultaneously. Operation of either a detector or a sprinkler will produce an alarm, but is insufficient to produce water flow into the system. When freezing refrigerated systems are protected by a preaction system, double-interlocking assures that once water flows into the system, it will continue to flow through one or more open sprinklers. This minimizes the possibility of ice blockage which could occur with a single-interlock system that holds the water statically until a sprinkler operates.

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The Fire Protection Handbook, published by the National Fire Protection Association (NFPA), contains a comprehensive description of preaction systems. The water supply to each preaction system is controlled by a primary control valve which is usually a deluge valve. Deluge valves manufactured by RELIABLE are described in Section 1.1.1 and 1.1.2. On occasion, a dry pipe valve (see Section 1.1.3) may be used as the primary control valve for a NON-INTERLOCK PREACTION SYSTEM. With this arrangement, a detector operating first will cause water to flow into the sprinkler piping in readiness for the operation of a sprinkler (just like a single-interlock system). However, whenever a sprinkler head operates first, this system will respond as a dry pipe system with water flow from the sprinkler within 60 seconds. More information on this type of combined 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. The closed, 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 chamber of 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 loss in the chamber of the deluge valve causes it to open and allow water flow into the sprinkler system piping. The sprinkler system is now in readiness for conditions that cause a sprinkler head to open and immediately discharge water on the fire. Note that water discharge from a pilot line sprinkler contributes little toward fire control. When quick response sprinkler heads are used, quick response pilot heads should have a lower temperature rating. Manual emergency pull stations (see Section 1.2.4.1) can provide a remote hydraulic method of causing 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) b) It is not to be installed in an area subject to freezing. It is not to be installed in an area where temperatures in excess of 150°F (66°C) are anticipated. NFPA Pamphlet No. 13, or the Authority Having Jurisdiction, should be consulted for pilot sprinkler spacing requirements. It is to be installed in accordance with the following table. See the Appendix Section 4.1 for the combination of height and distance limitations

c)

d)

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

Average Supply Pressure At Valve psi 20 40 60 80 100 120 140 160 175 bar 1,4 2,8 4,2 5,6 7,0 8,4 9,8 11,3 12,1 Maximum Height of Wet Pilot Line Above Deluge Valve Feet (Meters) 2½ (65mm) 7.7 12.3 21.6 30.8 43.1 53.9 67.8 80.1 92.4 (2.3) (3.8) (6.6) (9.4) (13.1) (16.4) (20.7) (24.4) (28.2) 4 (100mm) 7.7 18.4 27.8 37.0 44.6 52.4 66.2 78.5 84.6 (2.3) (5.6) (8.5) (11.3) (13.6) (15.9) (20.2) (23.9) (25.8) 6 (150mm) 10.8 21.5 32.3 43.1 50.8 58.5 75.5 81.6 84.7 (3.3) (6.6) (9.8) (13.1) (15.5) (17.8) (23.0) (24.9) (25.8)

All RELIABLE Deluge Valves are listed and approved by Underwriters Laboratories, Inc., and Factory Mutual Research Corp. when used with the above trim sets. Supervision of a hydraulic preaction system may not be required. However, when supervision is required, a riser check valve must be installed on the system side of the deluge valve to prevent the supervising 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. Supervising pressure provided by a RELIABLE Model B or C Compressor Panel (see Section 1.4.2.2.1) or a Model C Pressure Maintenance Device (see Section 1.4.2.2.2) requires the check valve to be capable of leak-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 the wet deluge system. If supervised, you must add a check valve and supervisory air equipment.

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3.3 Pneumatic (Dry Pilot) Activation

3.3.1 Non-Interlock Type

Dry pilot line operation of this type is the least costly pneumatic preaction system. This non-interlock system will respond as a true preaction system whenever a pilot line quick response sprinkler (heat detector) operates before a system sprinkler. However, if a system sprinkler should operate first, then the system will respond exactly like a dry pipe system. When a sprinkler head operates, as the result of being damaged, the inherent safeguarding provided by a preaction system against accidental water discharge does not exist with this system. When water damage, due to accidental discharge would be a negligible factor, this preaction system can be quite cost effective.

Figure 1 Model A Dry Pipe Valve - Model A Trimmings

Pilot line pressure is maintained at a level somewhere between 20 and 50 psi (1,4 and 3,5 bar), and is simultaneously the pressure in the sprinkler system piping. A Model A Compressor (see Bulletin 275 for proper sizing) and Model B-1 Pressure Maintenance Device should be used to provide this level of pressure. If a compressed air system is constantly available on the site, than a Model A-2 Pressure Maintenance Device (see Section 1.4.2.1.2 for maintenance device information) should be used to simultaneously supply the pilot line and sprinkler piping. Maintaining pneumatic pressure, according to Table 1, will hold a RELIABLE Dry Pipe Valve (primary control valve) closed (see Section 1.1.3). This same level of pressure will also hold a Model A Dry Pilot Actuator releasing device (see Section 1.2.2) closed, preventing system pressure from entering the intermediate chamber of the dry pipe valve. When one or more pilot heads open, due to fire conditi ons, the loss of pilot line pressure allows the dry pilot actuator to open. This sufficiently pressurizes the intermediate chamber of the dry pipe valve causing it to release and flow water into the sprinkler system. Subsequent opening of one or more sprinkler heads will soon result in water flow on the fire.

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Figure 2 Model D Dry Pipe Valve - Model D Basic Trimming

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 that discharging pneumatic pressure is directed away from the person that operated the station. Pneumatic supervision of sprinkler piping leak tightness in a non-interlock preaction system is accomplished by employing a low pressure switch to activate a trouble annunciating device when pilot line pressure falls below a predetermined level. Ignoring this warning can result in a significant loss of pneumatic pressure which will open the primary control (dry pipe) valve to flow water into the system. Models A and D Dry Pipe Valves require a basic trim set for convenient and compact connection points to alarm and other devices. Basic Trim Sets (Figures 1 & 2) provide a main drain connection, alarm devices connection, alarm test connection, and gauges for water supply and pneumatic pressures.

Water Pressure In Supply Line, psi (bar) Maximum 20 (1,7) 50 (3,5) 75 (5,1) 100 (7,0) 125 (8,6) 150 (10,3) 175 (12,1) Pneumatic Pressure to be Pumped Into System, psi (bar) Not Less Than 10 (0,7) 15 (1,0) 20 (1,4) 25 (1,7) 30 (2,1) 35 (2,4) 40 (2,8) Not More Than 20 (1,4) 25 (1,7) 30 (2,1) 35 (2,4) 40 (2,8) 45 (3,1) 50 (3,5)

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Preaction System

Pneumatic (Dry Pilot) Activation Non-Interlock Type

(1)

Design Specifications & Ordering Information

System Equipment Manufacturers

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

(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.

ITEM No.

1 7 8 15 16 18 19

COMPONENT PART

Isolating Valve Water Flow Pressure Switch (Optional) Mechanical Alarm (Optional) Sprinklers Manual Emergency Station (Optional) Air Compressor Pressure Maintenance Device

(1)

DESCRIPTION

OS&Y or Butterfly Type

G D D D I D

Model EPS 10-1 (SPDT) Model EPS 10-2 (DPDT) Mod. C (Bulletin 612 & 613) Closed Type (Bulletin 110, 117, 131, 136, etc.) Mod. A Hydraulic (Pilot Line) Type Mod. A, 1 3, 3 4, 11 2 hp (Bulletin 275) Mod. B-1, Use with Item No. 18 (Bulletin 251) Mod. A-2, Use with N2 or Owner's Air Supply (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 25 26 28

Basic Trim Set (Dry Pipe Valve) Low Pressure Switch (10-100 psi) Air Pressure Gauge Dry Pilot Actuator

D G D D

Mod. A, (Bulletin 353) Mod. D, (Bulletin 350) Model EPS 40-1(SPDT) Mod. UA 0-250 psi (Bulletin 206) 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 in non-interlock systems. These add to the cost of a preaction system; however, they do provide desirable features described below. The primary control valve is a deluge valve instead of a dry pipe valve, as employed in the non-interlock system (see Section 3.3.1). The operating characteristics of RELIABLE Deluge Valves are discussed in Section 1.1.1 (2 ½ Model A) and Section 1.1.2 (4 & 6 Model B & BX). Sprinkler piping in single-interlock systems can be effectively supervised by using the same air supply required for pressurization of the dry pilot actuator (See Section 1.4.2.1). Loss of the supervising pneumatic pressure, due to a damaged sprinkler or pipe line, will not cause water flow through a deluge valve and into the system piping. It will, however, produce a trouble condition annunciation.

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

A dry pilot line of closed sprinklers (thermal detectors) is located over an area to be protected, and is pressurized with compressed gas, such as air or dry nitrogen. This pressurized pilot line is connected to a Model A Dry Pilot Actuator releasing device (see Section 1.2.2), which functions like a small dry pipe valve. While the pilot line is pressurized adequately, the actuator remains closed keeping sufficient water pressure in the top chamber or push rod chamber of a RELIABLE Deluge Valve (see Figure 1 or 2) to keep it closed. When a pilot line sprinkler operates, the pneumatic pressure is reduced until the actuator is no longer able to hold water pressure in the top chamber or push rod chamber. The deluge valve is then released to open and flow water into the sprinkler system. A dry pilot line is only for thermal detection purposes.

Figure 2 Model BX Deluge Valve with Single-Interlock Preaction, Dry Pilot Line Trim

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It will not discharge water from any of its opened sprinklers. Model A Manual Emergency Pull Stati ons (see Section 1.2.4.1) can be incorporated into the dry pilot line, and they should be piped so that discharging pneumatic pressure is directed away from the person operating the station. It is very important that suitable automatic pressure maintenance equipment (see Section 1.4.2.1) be used to safeguard against accidental deluge valve operation due to possible pressure leakage in the dry pil ot line. 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 for supervision 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 by the following table:

Water Pressure, psi (bar) Maximum 20 (1,7) 50 (3,5) 75 (5,1) 100 (7,0) 125 (8,6) 150 (10,3) 175 (12,1) Pneumatic Pressure to be Pumped into Dry Pilot Line, psi (bar) Not Less Than 10 (0,7) 15 (1,0) 20 (1,4) 25 (1,7) 30 (2,1) 35 (2,4) 40 (2,8) Not More Than 20 (1,4) 25 (1,7) 30 (2,1) 35 (2,4) 40 (2,8) 45 (3,1) 50 (3,5)

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

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Model B/BX 4 & 6

Model A - 2½

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Preaction System

Pneumatic (Dry Pilot) Activation Single - Interlock Type

(1)

Design Specifications & Ordering Information

System Equipment Manufacturers

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

(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.

ITEM No.

1 2

COMPONENT PART

Isolating Valve Deluge Valve

(1)

DESCRIPTION

OS&Y or Butterfly Type 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

D

4 6 7 8 15 16 18

Preaction Trim Single-Interlock Dry Pilot Drain Manifold (Optional) Water Flow Pressure Switch (Optional) Mechanical Alarm (Optional) Sprinklers Manual Emergency Station (Optional) Air Compressor

D D G D D D D D

Mod. A Mod. B & BX 2½ Preaction or 4/ 6 Preaction Mod. EPS 10-1 (SPDT) Mod. EPS 10-2 (DPDT) Mod. C (Bulletin 612 & 613) Closed Type (Bulletin 110, 117, 131, 136, etc.) Mod. A Hydraulic (Pilot Line) Type Mod. A, 13, ¾, 1½ hp (Bulletin 275) Mod. A,

1 6

hp (Bulletin 707, Section 1.4.2)

19

Pressure Maintenance Device

D

Mod. B-1, Use with Item No. 18 (Bulletin 251) Mod. A-2, Use with N2 or Owner's Air Supply (Bulletin 251)

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3.4 Electric Activation (Supertrol System)

Electric activation of a primary control 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 Section 1.4.1). Electrically activated preaction systems are generally more costly than hydraulic and pneumatic systems. However, electrical systems offer the greatest number of features, design flexibility, 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 electrical signal to the releasing control panel immediately activates an alarm bell circuit and energizes open a normally closed solenoid releasing valve (see Section 1.2.3). The releasing control panel will electrically latch a solenoid releasing valve in the open position, and resetting it closed can onl y be accomplished by operating a resetting switch in the panel, after all detectors and electrical manual emergency pull stations have been reset. Manual emergency pull stations (see Section 1.2.4.2) are incorporated electrically into detector circuits. The single pole, Model BNG-1 is normally used; however, when a releasing control panel is arranged with the briefly delaying characteristic of cross-zoned operation (see Section1.4.1.2), then the two-pole, Model BNG-1F station is required. The two-pole station enables activation of both detector circuits simultaneously; circumventing the delaying characteristic by causing immediate water flow into the system when fire is visually observed. A releasing panel must have the capacity to supervise constantly the power supply, detector, alarm bell, and solenoid releasing valve electrical circuits; and to provide visual and audible trouble annunciation 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 the panel. With Class A wiring, a control panel will sound and display trouble signals, and simultaneously operate an alarm bell and solenoid releasing valve while single and some multiple unrepaired wiring faults exist. Class B detector circuit wiring uses two (2) wires to each detector and an end-of-line resistor. With Class B wiring, the control panel will sound and display trouble signals, but may not operate an al arm 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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In the event of a primary (120/230VAC) power failure, a control panel will automatically switch to battery power. Batteries are available to supply adequate power to operate the detection, signaling and releasing components, as required, for a minimum of 60 hours UL and 90 hours FM. Control panels include a charging circuit which constantly maintains gel cell batteries at full charge.

3.4.1 Non-Interlock Type

This non-interlock system will respond as a true preaction system whenever an electrical detector operates before a system sprinkler head does. However, if a system sprinkler should operate first, then the system will respond exactly like a dry pipe system. When a sprinkler head operates, as the result of being damaged, the inherent safeguarding associated with the preaction systems against accidental water discharge does not exist with this system. When accidental discharge of water from a sprinkler head would be a negligible factor, this type of preaction system is the most cost effective of the various electrical systems. Maintaining pneumatic pressure, according to the Table below, will hold a RELIABLE Dry Pipe Valve (Primary Control Valve) closed (see Section 1.1.3). A Model A Compressor (see Bulletin 275 for proper sizing) and Model B-1 Pressure Maintenance Device should be used to provide a proper level of pressure. If a compressed air system is constantly available on the site, then a Model A-2 Pressure Maintenance Device (see Section 1.4.2.1.2 for maintenance device information) should be used to supply the sprinkler piping.

Water Pressure In Supply Line, psi (bar) Maximum 20 (1,7) 50 (3,5) 75 (5,1) 100 (7,0) 125 (8,6) 150 (10,3) 175 (12,1)

Pneumatic Pressure to be Pumped Into System, psi (bar) Not Less Than 10 (0,7) 15 (1,0) 20 (1,4) 25 (1,7) 30 (2,1) 35 (2,4) 40 (2,8) Not More Than 20 (1,4) 25 (1,7) 30 (2,1) 35 (2,4) 40 (2,8) 45 (3,1) 50 (3,5)

When Model G3 or G3FR Dry Sprinklers are used, a minimum of 15 psi (1,0 bar) pneumatic pressure should be used.

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When one (1) electrical detector senses the presence of fire, the electrical releasing control panel latches the solenoid releasing valve in the open position. (Note that arranging detectors in a cross-zoned pattern will require operation of two (2) detectors before the solenoid valve can open.) This pneumatically pressurizes the intermediate chamber of the dry pipe valve causing it to release and flow water into the sprinkler system. Subsequent opening of one (1) or more sprinkler heads will soon result in water flow on the fire. A Model A Manual Emergency Pull Station (see Section 1.2.4.1) can be incorporated into the line supplying air pressure to the solenoid valve. This pull station should be piped so that discharging pneumatic pressure is directed away from the person that operated the station.

Figure 1 Model A Dry Pipe Valve - Model A Trimmings

Model BNG Electrical Manual Emergency Stations (see Section 1.2.4.2) are incorporated into the detector circuit(s). Pneumatic supervision of sprinkler piping leak tightness in a non-interlock preaction system is accomplished by employing a low pressure switch to activate a trouble annunciating device, when system pressure falls below a predetermined level that is considerably higher than the normal dry pipe valve releasing (tripping) pressure. Ignoring this annunciating device can result in further pneumatic pressure decrease leading to unintentional releasing (opening) of the dry pipe valve. Models A and D Dry Pipe Valves require a basic trim set for convenient and compact connection points to alarm and other devices. Basic trim sets (Figures 1 & 2) provide a main drain connection, alarm devices connection, alarm test connection, and gauges for water supply and pneumatic pressures.

Figure 2 Model D Dry Pipe Valve - Model D Basic Trimmings

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Preaction System

Electrical Activation Non-Interlock Type

(1)

Design Specifications & Ordering Information

System Equipment Manufacturers

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

(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.

ITEM No.

1 7 8 9 10

COMPONENT PART

Isolating Valve Water Flow Pressure Switch (Optional) Mechanical Alarm (Optional) Solenoid Releasing Valve Releasing Control Panel (Optional) Batteries (2 Required)

(1)

DESCRIPTION

OS&Y or Butterfly Type

G D C A A

Mod. EPS 10-1 (SPDT) Mod. EPS 10-2 (DPDT) Mod. C (Bulletin 612 & 613) Mod. 73218BN4UNLVNOC111C2 24VDC (Normally Closed) Mod. RP-1001 Mod. PS 12120 (90 Hrs. Back-up) (FM) Mod. PS 1270 (60 Hrs. Back-up)

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

12

Trouble Annunciator

G

Mod. SSM-24-6-24VDC / Polarized Bell Mod. H 12/24-24VDC / Polarized Horn

13

Manual Emergency Station (Optional)

A

Mod. BNG-1 (SPDT) 1 & 2 Area Detection Mod. BNG-1F (DPDT) Cross Zone Detection

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Preaction System

Electrical Activation Non-Interlock Type

(1)

Design Specifications & Ordering Information

System Equipment Manufacturers

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

(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.

ITEM No.

14

COMPONENT PART

Detectors (Optional) Thermal Thermal Thermal Adapter Smoke Smoke Base (Required with PSD & CPD Detectors)

(1)

DESCRIPTION

H

Mod. 302 Pendent / Interior, 135°F, 200°F Mod. 302H Horizontal / Interior, 135°F, 200°F Mod. 302AW Pendent / All Weather, 135°F, 200°F Mod. AP-P Adapter Plate (Mod. 302 Only)

B

Mod. PSD7155 Photoelectric Mod. CPD7051 Ionization

B D D D

Mod. 70-201000-001 Base (2-Wire) Mod. A Hydraulic (Pilot Line) Type Mod. A, Mod. A,

1 3

1 6

16 18

Manual Emergency Station (Optional) Air Compressor

, 3 4, 1 1 2 hp (Bulletin 275) hp (Bulletin 707, Section 1.4.2)

19

Pressure Maintenance Device

D

Mod. B-1, Use with Item No. 18 (Bulletin 251) Mod. A-2, Use with N2 or Owner's Air Supply (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 23 25 26

Basic Trim Set (Dry Pipe Valve) Accelerator (Optional) Low Pressure Switch (10-100 psi) Air Pressure Gauge

D D G D

Mod. A (Bulletin 353) Mod. D (Bulletin 350) Mod. B1 (Bulletin 320 & 322) Mod. EPS 40-1 (SPDT) Mod. UA 0-250 psi (Bulletin 206)

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3.4.2 Single-Interlock Type Supertrol Systems

Electric single-interlock preaction systems contain several components that differ from those in non-interlock systems. These add to the cost of a preaction system; however, they do provide desirable features described below. The primary control valve is a deluge valve instead of a dry pipe valve, as employed in the non-int erlock system (see Section 3.4.1). The operating characteristics of RELIABLE Deluge Valves are discussed in 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 C Air Compressor Panel or a Model C Pressure Maintenance Device (see Section 1.4.2.2). Loss of the 2.0 psi (0,14 bar) supervising pneumatic pressure, due to a damaged sprinkler or pipe line, will not cause water flow through a deluge valve and into the system piping. A significant loss of pneumati c pressure will activate a trouble annunciating device when system pressure falls below 7 psi (0,5 bar).

Figure 1 Model BX Deluge Valve with Electrical Actuation Preaction Trim

When one (1) electrical detector senses the presence of fire, the electrical releasing control panel activates fire alarm devices and latches the solenoid releasing valve in the open position. (Note that arranging detectors in a cross-zoned pattern will require operation of two (2) detectors before the solenoid valve can open.) The solenoid releasing valve (Figures 1 & 2), when closed, is preserving sufficient water pressure in the top chamber or push rod chamber of a RELIABLE Deluge Valve to hold it closed. Opening the solenoid release valve relieves that water pressure, and thereby opens the deluge valve to allow water flow in the sprinkler system. To fully operate a cross-zoned , single-interlock system, two (2) electrical detectors must activat e, and a sprinkler head must open. The operating sequence of a cross-zoned system follows. During the initial stages of a fire, smoke or heat activates the first detector which causes the panel to produce a local alarm and an alarm at the main fire alarm panel. Electrical relays inside the releasing cont rol panel can be used to shut down air moving equipment and computer systems or activate security doors and other electrical devices, when the panel goes into this "first alarm" condition. Subsequent activation of a second, nearby (adjacent) detector will cause the panel to energize the solenoid valve open and release pressure in the top or push rod chamber of the deluge valve which causes the clapper to unlatch. This immediately sends water into the sprinkler piping.

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Water flowing into the sprinkler piping will simultaneously produce water pressure in the alarm trim piping of the deluge valve, a condition that causes the transfer of dry contacts in one or more pressure switches mounted in this alarm line. Each pressure switch can electrically control the shutdown or start-up of equipment, such as, computers or other "second alarm" devices, respectively. The flow of water into the sprinkler piping effectively converts the heretofore dry system into a wet pipe system. In the event the fire subsequently produces sufficient heat to operate a sprinkler head, water will flow from that sprinkler on the fire. The major benefits of a single-interlock preaction system, when compared with a wet-pipe system, are as follows:

Figure 2 Model A Deluge Valve with Electrical Actuation Preaction Trim

A.

A fire alarm sounds prior to the operation of a sprinkler which may enable extinguishing the fire by hand-held means before the operation of any sprinkler head occurs. A trouble annunciator signals whenever the integrity of piping or sprinklers is accidentally or intentionally disturbed; however, no water flow or water damage will result at this time. Speedy detection and an early fire alarm is provided by fire detectors, without the delay 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 operated sprinkler head.

B.

C.

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Model B/ BX 4 & 6

Model A 2½ * When Model G3 or G3FR Dry Sprin klers are used (Ref. Sec tion 3.1) or when su per vi sory pressures above 15 psi are preferred, substitute the Model A-2 Pres sure Main te nance De vice (Item 19) and the Low Pres sure Switch (Item 25) for Item 17.

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

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84

Preaction System

Electrical Activation Single - Interlock Type

(1)

Design Specifications & Ordering Information

System Equipment Manufacturers

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

(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.

ITEM No.

1 2

COMPONENT PART

Isolating Valve Deluge Valve

(1)

DESCRIPTION

OS&Y or Butterfly Type 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

D

4 6 7 8 10

Preaction Trim Single-Interlock - Electric Drain Manifold (Optional) Water Flow Pressure Switch (Optional) Mechanical Alarm (Optional) Releasing Control Panel (Optional) Batteries (2 Required)

D D G D A A

Mod. A (Bulletin 715) Mod. B&BX (Bulletin 716) 2½ Preaction or 4/6 Preaction Mod. EPS 10-1 (SPDT) Mod. EPS 10-2 (DPDT) Mod. C (Bulletin 612 & 613) Mod. RP-1001 Mod. PS 12120 (90 Hrs. Back-up) (FM) Mod. PS 1270 (60 Hrs Back-up)

Optional Accessories

A

Mod. 4XTM Transmitter Module Mod. 4XLM Annun. Driv. Module Mod. RZA-4X Remote Annun. Mod. 4XZM Zone 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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Preaction System

Electrical Activation Single - Interlock Type

(1)

Design Specifications & Ordering Information

System Equipment Manufacturers

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

(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.

ITEM No.

12

COMPONENT PART

Trouble Annunciator (Optional)

(1)

DESCRIPTION

Mod. SSM-24-6-24VDC / Polarized Bell Mod. P2415-24VDC / Polarized Sounder

G

13

Manual Emergency Station (Optional)

A

Mod. BNG-1 (SPDT) 1 & 2 Area Detection Mod. BNG-1F (DPDT) Cross Zone Detection

14

Detectors (Optional) Thermal Thermal Thermal Adapter Smoke Smoke Base (Required with PSD & CPD Detectors) B D D B H Mod. 302 Pendent / Interior, 135°F, 200°F Mod. 302H Horizontal / Interior, 135°F, 200°F Mod. 302AW Pendent / All Weather, 135°F, 200°F Mod. AP-P Adapter Plate (Mod. 302 Only) Mod. PSD7155 Photoelectric Mod. CPD7051 Ionization Mod. 70-201000-001 Base (2-Wire) Closed Type (Bulletins 110, 117, 131, 136, etc.) Mod. B Air Compressor Panel 120 VAC / 60HZ Mod. C Air Compressor Panel 220 VAC / 50HZ Mod. C Pressure maintenance Device requires 40 to 100 psi Supply

15 17

Sprinklers Supervisory Pressure Supply (Optional)

19 20 25

Pressure Maintenance Device (Optional) Air Compressor with Tank Low Pressure Switch (10-100psi) (Optional)

D I G

Mod. B-1 (Bulletin 251) Mod. 1 HAB-11T-M100X, Mod. EPS 40-1 (SPDT)

1 6

hp 2 Gal. Tank

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1½ Preaction System

Electrical Activation Single-Interlock Type

(1)

(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.

Design Specifications & Ordering Information

System Equipment Manufacturers

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

ITEM No.

2 4 10

COMPONENT PART

Deluge Riser Assembly Preaction Trim Single-Interlock-Electric Releasing Control Panel (Optional) Batteries (2 Required) Optional Accessories

(1)

DESCRIPTION

Model H 1½ Thd x Thd (Bulletin 507) Model H (Bulletin 719) Model RP-1001 Model PS 12120 (90 Hrs. Back-up) (FM) Model PS 1270 (60 Hrs. Back-up) Model 4XTM Transmitter Module Model 4XLM Annunciator Driv. Module Model RZA-4X Remote Annunciator Model 4XZM Zone Module

D/C D A A A

11

Alarm Annunciator (Optional)

G

Model SSM-24-8-24VDC/Polarized Bell Model SSM-24-10-24VDC/Polarized Bell

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

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87

1½ Preaction System

Electrical Activation Single - Interlock Type

(1)

Design Specifications & Ordering Information

System Equipment Manufacturers

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

(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.

ITEM No.

12

COMPONENT PART

Trouble Annunciator (Optional)

(1)

DESCRIPTION

Mod. SSM-24-6-24VDC / Polarized Bell Mod. H 12/24-24VDC / Polarized Horn

G

13

Manual Emergency Station (Optional)

A

Mod. BNG-1 (SPDT) 1 & 2 Area Detection Mod. BNG-1F (DPDT) Cross Zone Detection

14

Detectors (Optional) Thermal Thermal Thermal Adapter Smoke Smoke Base (Required with PSD & CPD Detectors) B D D B H Mod. 302 Pendent / Interior, 135°F, 200°F Mod. 302H Horizontal / Interior, 135°F, 200°F Mod. 302AW Pendent / All Weather, 135°F, 200°F Mod. AP-P Adapter Plate (Mod. 302 Only) Mod. PSD7155 Photoelectric Mod. CPD7051 Ionization Mod. 70-201000-001 Base (2-Wire) Closed Type (Bulletins 110, 117, 131, 136, etc.) Mod. B Air Compressor Panel 120 VAC / 60HZ Mod. C Air Compressor Panel 220 VAC / 50HZ Mod. C Pressure Maintenance Device requires 40 to 100 psi Supply

15 17

Sprinklers Supervisory Pressure Supply (Optional)

20

Air Compressor with Tank (Optional)

I

Mod. 1 HAB-11T-M100X, 1 6 hp 2 Gal. Tank (Use with Mod. C Pressure Maintenance Device)

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The Reliable PrePaK Preaction Systems are completely self-contained supervised preaction systems for UL Applications that can be readily installed within a floor space of 4 or 7.5 square feet (0.37 or 2 0.7m ). 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 these piping 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 steel enclosure: · 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-CheckTM Valve, sizes 2½ - 6 (see Bulletin 806) · One Gast Tank-Mounted Air Compressor ­ Model 1 HAB-11T-M100X 1 6 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 the system in single interlock, single-interlock cross-zoned, double-interlock and double-interlock cross-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 n four different preaction applications without having to rewire any of the factory installed devices. Once the previously described connections are completed, the 24 VDC detectors, output devices, and relay contacts may be connected to achieve the desired system implementation. The PrePaK Preaction System can be used in both single and double-interlock applications. Reliable Single and Double-Interlock Preaction Systems are designed for water sensitive areas which require protection from inadvertent water flow into the sprinkler system piping. The major benefits of Single or Double-Interlock PrePaK Preaction Systems are described in Bulletins 723, 724, 725 and in Section 3.1 of this manual.

Approvals

The Reliable PrePaK Preaction Systems are Underwriters Laboratories Inc. (UL) Listed, and UL Certified for Canada*, as an assembled unit, in the "Special System Water Control Valves-Assembled Units" category (VKYL). The system components within the PrePaK enclosure are Factory Mutual Approved as Supertrol Single-Interlock Preaction Systems and Supertrol Double-Interlock Type D Refrigerated Area Preaction Systems for use in refrigerated rooms or buildings. (Refer to respective PrePak Bulletins for New York City MEA approvals, guidelines and limitations.) * Electrical devices and control panel must be specified to meet Canadian requirements. This option is available.

Technical Data

The 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).

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

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89

Model H 1½ PrePaK Shown

PrePaK Model Model H 1½ (40mm) PrePaK Model A 2½ (65mm) PrePaK Model BX 4 (100mm) PrePaK Model BX 6 (150mm) PrePaK

(1)

Friction Loss (1)

36 ft. (11m)

(2)

62 ft. (19m)(3) 58 ft. (18m)(4) 83 ft. (25m)(4)

Enclosure Dimensions 64 H x 24 W x 24 D (1626mm H x 610mm W x 610mm D) 64 H x 24 W x 24 D (1626mm H x 610mm W x 610mm D) 72 H x 36 W x 30 D (1829mm H x 914mm W x 762mm D) 72 H x 36 W x 30 D (1829mm H x 914mm W x 762mm D)

Shipping Weight

460 lbs (209kg) 480 lbs (218kg) 800 lbs (363kg) 900 lbs (408kg)

Friction Loss expressed in equivalent length of Schedule 40 pipe, based on the Hazen-Williams formula with C=120 and a flowing velocity of 15 ft/s (4.6m/s). (2) Includes Total Riser Assembly. (3) Includes Deluge Valve, 90° Elbow, Tee, Model G Right-Check® Valve, and Butterfly Control Valve. (4) Includes Deluge Valve, Model G Right-Check® Valve, Tee, and Butterfly Control Valve.

System Design Considerations

The automatic sprinkler releasing devices, fire detection devices, manual pull stations, and signal ing devices which are utilized with the Reliable PrePaK Preaction Systems must be UL and/or ULC Listed, as applicable. The steel enclosure and all interconnecting piping must be a minimum temperature of 40°F (4°C). NOTE: HEAT TRACING IS NOT PERMITTED The solenoid valve is operated and supervised by the Potter electric releasing control panel. Details on the electrical connections of this system to a Potter model PFC-4410 Releasing Control Panel can be found in Potter Manual #5403527, Installation, Operation, and Instruction of PFC-4410 Fire Alarm/Releasing Panel. This panel is programmable and may be adapted to several applications.

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3.4.3 Double-Interlock Type Supertrol Systems

Electric double-interlock preaction systems can be accomplished with several different arrangements of all the same components that comprise single-interlock preaction systems. A double-interlock system is defined as a system which requires the operation of both a detector and a sprinkler before water is able to flow through a primary control valve (deluge valve) into the sprinkler system pipi ng. Double-interlock systems are treated as a dry pipe system and therefore are more costly to install than the 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 a sprinkler subsequently operates. This brief time of waiting for a sprinkler operation could result in an impairment 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 extensive damage 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 much assurance as possible that water would continually flow through the deluge valve and open sprinklers when 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 is accomplished in the same manner as activation of single-interlock systems, and the reader is referred to Section 3.4.2 for a description of electrical activation.

3.4.3.1 Type A Double-Interlock Supertrol System (Interlocked Dry Pilot Actuator & Solenoid Valve Releasing Devices)

SUMMARY OF OPERATION The Model A Compressor and the Model B-1 Air Maintenance Device combine to provide air pressure in 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, thereby preventing the possibility of water flowing from the push rod or top chamber of the deluge valve. The dry 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 pressure maintenance device, is recommended. In series with and upstream of the dry pilot actuator is a second releasing device identified as the solenoid valve. The solenoid valve is activated electrically when a manual electrical emergency station or a thermal or smoke detector operates and signals the releasing control panel to open the solenoi d valve. 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 sprinkler system. When only a sprinkler head operates (or is broken), air pressure will be lowered which opens the dry pilot actuator and activates the low-pressure switch causing only an alarm annunciation. There will be no waterflow into the sprinkler system, as long as the solenoid valve remains closed.

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Conversely, if a smoke detector operates (or produces a false alarm), the signal to the control panel will, in turn, open the solenoid valve. However, the dry pilot actuator will remain closed thereby preventing the operation of the deluge valve. Again, only an alarm will sound, but there will be no waterflow into the sprinkler piping. In a fire scenario, operation of a sprinkler and at least one (1) detector will cause both releasing devices to open, thereby opening the deluge valve permitting water to flow into the sprinkler piping and out the open sprinkler head. Note that the air pressure in the sprinkler piping has the secondary purpose of supervising the integrity of the sprinkler piping. Any condition that would result in significant pressure reduction, such as a damaged sprinkler or broken fitting, would cause an alarm device to annunciate until the damage has been corrected. Also, supervision of various electrical circuits, such as the detector circuit, alarm bell circuit, solenoid circuit, and power supply circuits are all annunciated by a common trouble bell and individual circuit lights on the releasing control panel. See Section 1.4.1 for information on the Model RP1001 Panel. APPROVALS The 4 and 6 inch Supertrol Type A DoubleInterlock Preaction Systems are Factory Mutual Approved for use in refrigerated rooms or buildings. Refrigerated area sprinkler systems are FM Approved as complete systems. Only the approved components for this system as listed in this bulletin can be used in combination. Systems are FM Approved for use with thermal detectors and Class A detector circuit wiring only. The Reliable Type A Double-Interlock Preaction System is Listed By Underwriters Laboratories in the Special System Water Control ValvesDouble-Interlock Type (VLJH) Category. The components of the Supertrol DoubleInterlock Preaction Systems are individually listed by Underwriters' Laboratories of Canada.

Type A Double-Interlock System

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Type A Double-Interlock Systems must be used with Latching Deluge Valves such as 4 (100mm) and 6 (150mm) Models B & BX. Non-latching deluge valves may close prematurely if air pressure is permitted to increase above the Model A Dry Pilot Actuator.

Note: The Model A, 2½Deluge Valve is not available for Type A Systems.

4 & 6 Model BX PREACTION SYSTEM Electric Activation Double-Interlock Type A

*Optional compressor equipment includes: 1 6 thru 2 hp tankless or tank-mounted types (recommended). Item 19 must be a Model A-2 Pressure Maintenance Device when tank-mounted compressors are used.

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525 North MacQuesten Parkway, Mount Vernon, New York 10552

93

Preaction System

Electrical Activation Double - Interlock Type A

(1)

Design Specifications & Ordering Information

System Equipment Manufacturers

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

(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.

ITEM No.

1 2

COMPONENT PART

Isolating Valve Deluge Valve

(1)

DESCRIPTION

OS&Y or Butterfly Type

D Mod. B, 4 or 6 FLNG x FLNG or FLNG x GRV Mod. BX, 4 or 6 FLNG x FLNG or FLNG x GRV

5 6 7 8 10

Preaction Trim Double-Interlock Type A Drain Manifold (Optional) Water Flow Pressure Switch (Optional) Mechanical Alarm (Optional) Releasing Control Panel (Optional) Batteries (2 Required)

D D G D A A

Mod. B&BX (Bulletin 710) 4/6 Preaction Mod. EPS 10-1 (SPDT) Mod. EPS 10-2 (DPDT) Mod. C (Bulletin 612 & 613) Mod. RP-1001 Mod. PS 12120 (90 Hrs. Back-up) (FM) Mod. PS 1270 (60 Hrs Back-up)

Optional Accessories

A

Mod. 4XTM Transmitter Module Mod. 4XLM Annun. Driv. Module Mod. RZA-4X Remote Annun. Mod. 4XZM Zone 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

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

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(Future)

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95

Preaction System

Electrical Activation Double - Interlock Type A

(1)

Design Specifications & Ordering Information

System Equipment Manufacturers

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

(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.

ITEM No.

12

COMPONENT PART

Trouble Annunciator (Optional)

(1)

DESCRIPTION

Mod. SSM-24-6-24VDC / Polarized Bell Mod. H 12/24-24VDC / Polarized Horn

G

13

Manual Emergency Station (Optional)

A

Mod. BNG-1 (SPDT) 1 & 2 Area Detection Mod. BNG-1F (DPDT) Cross Zone Detection

14

Detectors (Optional) Thermal Thermal Thermal Adapter H Mod. 302 Pendent / Interior, 135°F, 200°F Mod. 302H Horizontal / Interior, 135°F, 200°F Mod. 302AW Pendent / All Weather, 135°F, 200°F Mod. AP-P Adapter Plate (Mod. 302 Only) D D Closed Type (Bulletins 110, 117, 131, 136, etc.) Mod. A, 1 3, ¾, 1½ hp (Bulletin 275) Mod. A,

1 6

15 18

Sprinklers Air Compressor

hp (Bulletin 707, Section 1.4.2)

19

Pressure Maintenance Device

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

Accelerator (Optional)

D

Mod. B1 (Bulletin 320 & 322)

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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 detector circuit in a cross-zoned panel whenever supervising dry nitrogen gas or air pressure in the sprinkl er piping drops below 5 psi (0,4 bar). Normally, the Model A-2 Pressure Maintenance Device would maintain the pressure at 7 to 10 psi (0,5 to 0,7 bar) for supervising the sprinkler system integrity. A special regulator will be required on nitrogen tanks to reduce their 2000 psi (138 bar) pressure down to approximately 175 psi (12 bar), which is the maximum level required for supplying the Model A-2 device. Refer to Section 3.4.3.3 and Bulletin 253 for information describing Reliable's Nitrogen Regulating Device. When a sprinkler head operates (or is accidentally broken), the resulting reduction of pressure at the low pressure switch will send a pneumatic signal to the RP1001 Releasing Control Panel causing the panel to 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 pushing the 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 the second 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 will operate, and it will be used to annunciate a "second" alarm (waterflow) condition. This switch (or multiples 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 Releasing Control 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, only then would water flow into the sprinkler system and out of the open sprinkler. Of course, the vari ous "second" alarm actions would also occur. The pneumatic system supervision feature has already been discussed. Supervision of various electrical circuits, such as the detector, alarm bell, solenoid valve, and power supply circuits are annunciated by a common trouble bell and individual circuit lights on the RP-1001 Releasing Control Panel. 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 sprinkler systems are FM Approved as complete systems. Only the approved components for this system as listed in this bulletin can be used in combination. Systems are FM Approved for use with thermal detectors and Class A detector circuit wiring only. The components of the Supertrol Double-Interlock Preaction Systems are individually listed by Underwriters' Laboratories of Canada. The 2½ (65mm), 4 (100mm), and 6 (150mm) Type D Double-Interlock Preaction Systems are Underwriters Laboratories Listed in the Special System Water Control Valves Double-Interlock Type (VLJH) Category.

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(Future)

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Model BX 4 & 6 Note: A Con stant source of pres sure is re quired. A tank mounted air com pres sor is rec om mended . Dry ni tro gen is an op tion for freezer ap pli ca tions.

Model A 2½

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99

Preaction System

Electrical Activation Double - Interlock Type D

(1)

Design Specifications & Ordering Information

System Equipment Manufacturers

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

(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.

ITEM No.

1 2

COMPONENT PART

Isolating Valve Deluge Valve

(1)

DESCRIPTION

OS&Y or Butterfly Type 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

D

5 6 7 8

Preaction Trim Double-Interlock Type D Drain Manifold (Optional) Water Flow Pressure Switch (Optional) Mechanical Alarm (Optional)

D D G D

Model A (Bulletin 713) Model B&BX (Bulletin 714) 2½ Preaction, 4/6 Preaction Model EPS 10-1 (SPDT) Model EPS 10-2 (DPDT) Model C (Bulletin 612 & 613)

10

Releasing Control Panel (Optional) Batteries (2 Required)

A A

Model RP-1001 Model PS 12120 (90 Hrs. Back-up) (FM) Model PS 1270 (60 Hrs Back-up)

Optional Accessories

A

Model 4XTM Transmitter Module 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 SSM-24-10-24VDC / Polarized Bell Model H 12/24-24VDC Polarized Horn Mod. P2415-24VDC / Polarized Horn/Strobe

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

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

100

(Future)

01/01

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

101

Preaction System

Electrical Activation Double - Interlock Type D

(1)

Design Specifications & Ordering Information

System Equipment Manufacturers

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

(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.

ITEM No.

12

COMPONENT PART

Trouble Annunciator (Optional)

(1)

DESCRIPTION

Model SSM-24-6-24VDC / Polarized Bell Model H 12/24-24VDC / Polarized Horn

G

13 14

Manual Emergency Station (Optional) Detectors (Optional) Thermal Thermal Thermal Adapter Smoke Smoke Base (Required with PSD & CPD Detectors)

A

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

H

Model 302 Pendent / Interior, 135°F, 200°F Model 302H Horizontal / Interior, 135°F, 200°G Mod. 302AW Pendent / All Weather, 135°F, 200°F Model AP-P Adapter Plate (Model 302 Only)

B

Model PSD7125 Photoelectric Model CPD7021 Ionization Model 70-201000-001 Base (2-wire)

15 19 20

Sprinklers Pressure Maintenance Device Air Compressor

D D I

Closed Type (Bulletins 110, 117, 131, 136, etc.) Model A-2, Use with Item number 20 (Bulletin 251) Model 1HAB-11T-M100X 1 6 & 2 Gal Tank Model 5LCA-11T-M550X ¾ & 20 Gal Tank

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

102

Preaction System 1½ Electrical Activation Double-Interlock Type D

(1) (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.

Design Specifications & Ordering Information

System Equipment Manufacturers

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

ITEM No.

2 5 10

COMPONENT PART

Deluge Riser Assembly Preaction Trim Double-Interlock-Type D Releasing Control Panel (Optional) Batteries (2 Required)

(1)

DESCRIPTION

Model H 1½ Thd x Thd (Bulletin 507) Model H (Bulletin 720) Model RP-1001 Model PS 12120 (90 Hrs. Back-up) (FM) Model PS 1270 (60 Hrs. Back-up)

D/C D A A

Optional Accessories

A

Model 4XTM Transmitter Module Model 4XLM Annunciator Driv. Module Model RZA-4X Remote Annunciator

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

103

Design Specifications & Ordering Information

Preaction System 1½ Electrical Activation

Double-Interlock Type D

(1)

System Equipment Manufacturers

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

(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.

ITEM No.

11

COMPONENT PART

Alarm Annunciator (Optional)

(1)

DESCRIPTION

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 Horn/Strobe

G

12

Trouble Annunciator (Optional)

G

Model SSM-24-10-24VDC / Polarized Bell Model H 12/24-24VDC / Polarized Horn

13 14

Manual Emergency Station (Optional) Detectors (Optional) Thermal Thermal Thermal Adapter Smoke Smoke Base (Required with PSD & CPD Detectors)

A

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

H

Model 302 Pendent / Interior, 135°F, 200°F Model 302H Horizontal / Interior, 135°F, 200°F Mod. 302AW Pend./All Weather, 135°F, 200°F Model AP-P Adapter Plate (Model 302 Only)

B

Model PSD7155 Photoelectric Model CPD7051 Ionization Model 70-201000-001 Base (2-Wire)

15 20

Sprinklers Air Compressor

D I

Closed Type (Bulletins 110, 117, 131, 136, etc.) Model 1LAA-11T-M100X, 16 hp Compressor and 2 Gal. Tank (Bulletin 707, Section 1.4.2 & Bulletin 720)

01/01

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

104 3.4.3.3 Nitrogen Regulating Device

General Description

Re li able Ni tro gen Reg u lating 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 Re li able Model A-2 or Model C Pres sure Main te nance De vice. The ni tro gen sup ply is ob tained from a high pres sure nitrogen cylinder. 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 single stage pres sure regu la tor equipped with high pres sure in let and low pres sure out let gages. As the ni tro gen is gradu ally de pleted and the pres sure in side the cyl in der drops, the low pres sur e regu lated output remains stable. Connected to the regulator is a coiled copper tubing with connector and adapter for a flexi ble and di rect con nec tion to the above men tioned Re li able pres sure main tenance devices. If de sired, an op tional ad just able low pres sure switch kit is avail able. In stalled be tween the Nitrogen Regu lat ing De vice out let and the Model A-2 or Model C Pres sure Main te nance De vice in let, i t sig nals a control panel such as the Notifier RP1001 the approachingdepletion of the nitrogen supply.

Figure 1 Ni tro gen Regu lat ing De vice shown with op tional low pres sure switch kit 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.

Item No. 1 2 3 4 5

Part Number 6999991570 98085630 98768004 98048025 6501200100

Description Pressure Regulator Connector, ¼ Tubing x ¼ NPT Tubing ¼ O.D. X 6 ft. - Copper Reducer Bushing, ¾ x ¼ - Galv. Optional - Low Pressure Switch Kit

Qty. Req'd 1 2 1 1 1

01/01

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

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

105

Technical Data

The 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) cylinder pressure 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 nipple, branch nipple, branch coupling reducer and adjustable low pressure switch is optional. Mounted between the Nitrogen Regulating Device and the supervisory pressure inlet, it sends a warning signal to replace a nitrogen cylinder that is 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 varying by supplier and cylinder sizes. Typical cylinders are: Cylinder Size: Nitrogen Weight lbs.(kg): Nitrogen Volume cu. ft. (m3): Pressurized at psig (bar):* "Q" "S" "K" 5.50 (2.50) 10.28 (4.66) 16.51 (7.50) 76 (2.2) 142 (4.0) 228 (65) 2200 (151.7) 2200 (151.7) 2200 (151.7) "T" 22.01 (9.98) 304 (8.6) 2640 (182.0)

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

System Capacity Gal. 250 500 750 1000 (L) 20° (-6.7°) Freezer Temperature °F (°C) Approx. Fill Time (min.)** 1 2 3 4

0° (-18°) 4.69 (2.13) 9.37 (4.25) 14.06 (6.38) 18.75 (8.50)

-20° (-29°) 4.90 (2.22) 9.80 (4.45) 14.70 (6.67) 19.60 (8.90)

-40° (-40°) -60° (-51°) 5.13 10.27 15.40 20.54 5.39 (2.44) 10.78 (4.90) 16.17 (7.33) 21.56 (9.78)

(946.4) 4.49 (2.04) (1892.7) 8.98 (4.07) (2839.0) 13.47 (6.11) (3785.4) 17.97 (39.62)

When used in conjunction with the Reliable Dou ble-Interlock Type D Pre ac tion Sys tem in a refrigerated area, the calculatednitrogen sup ply in lbs. (kg.) to pres sur ize var i ous sys tem ca paci ties to 10 psig (0,7 bar) at different freezer temperatures is as follows: ** Note: When used in conjunction with the Reliable Model A-2 Pressure Maintenance Device having by-pass line open. The nitrogen used in refrigerated area systems minimizes a possibility of ice buildup and blockage inside the sys tem pip ing that could pre vent proper sys tem op er a tion. The dew-point of nitrogen compressed to a maximum 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 this Device:

Supertrol Double-Interlock Type D

Preaction System Control Panel Model A-2 Pressure Maintenance Device Model C Pressure Maintenance Device Low Pneumatic Pressure Switch (System Sensor) 4 & 6 (100mm &150mm) size 2½ size (65mm) 1½ size (40mm) 714 713 720 707/708 251 252 D770-08-00

01/01

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

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