hpco2(2)

Carbon Dioxide System Components

CV-98 Cylinder Shipping Assembly

Description

The CV-98 cylinder is factory filled with carbon dioxide. Asingle cylinder may be used or multiple cylinders can bemanifolded together to obtain the required quantity ofagent for total flooding or local application methods. TheCV-98 cylinder can be actuated electrically, pneumatically,and/or manually with approved valve actuation compo-nents.

The cylinders are shipped with a maintenance record cardand protective shipping cap attached to the threaded neckof each cylinder. This cap entirely encloses and protectsthe valve while in shipment.

The 35 and 50 lb. (15.9 and 22.7 kg) cylinders are manu-factured with a bent siphon tube which allows for eitherhorizontal or vertical mounting.

ANSUL

Component Material Thread Size/Type Approvals

Cylinder Steel 1-11 1/2 NPT, Female Meets DOT 3A1800 or 3AA1800

CV-98 Valve Brass 1-11 1/2 NPT, Male x1 5/16-12UN-3A Outlet Thread – Male

Safety Relief Valve Brass .6250-18UNF-3B, Male In Accordance with Bureau ofExplosives

Valve/Tank UL (EX-2968), FM Approved, CompliesAssembly with Regulations of the U.S. Coast

Guard (162.038/7/0) and meetsrequirements of NFPA 12.

Shipping Cap Steel 3.125-11 NS1, Female

ShippingAssembly Weight Of CO2 Approximate Weight Dimension A Dimension BPart No. lb. (kg) lb. (kg) in. (cm) in. (cm)

Finish: Red Enamel Paint

426242 35 (15.9) 121 (54.9) 35 3/4 (90.8) 8 1/2 (21.6)426244 50 (22.7) 165 (75) 52 3/4 (128.9) 8 1/2 (21.6)426246 75 (34.0) 200 (91) 57 3/4 (146.7) 9 1/4 (23.5)426248 100 (45.4) 300 (136) 59 3/4 (151.8) 10 3/4 (27.3)

Finish: Red Epoxy Paint

426243 35 (15.9) 121 (55) 35 3/4 (90.8) 8 1/2 (21.6)426245 50 (22.7) 165 (75) 52 3/4 (133.9) 8 1/2 (21.6)426247 75 (34.0) 200 (91) 57 3/4 (146.7) 9 1/4 (23.5)426249 100 (45.4) 300 (136) 59 3/4 (151.8) 10 3/4 (27.3)

1-1.1

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NOTE: Use Flexible Discharge Bend, Part No. 42424, when attaching valve to supply pipe or manifold.

ANSUL INCORPORATED, ONE STANTON STREET, MARINETTE, WI 54143-2542 715-735-7411 Form No. F-9880 ©1998 Ansul Incorporated Litho in U.S.A.

A

HEIGHTTO

OUTLET

B

RECORD TAG

CYLINDER SHIPPING CAP

SAFETY DISCNUT

VALVE SHIPPING CAP

CV-98 VALVE

SIPHON TUBE ADAPTOR

SIPHON TUBE

001416

ANSUL is a registered trademark.

001816

CV-98 CO2 VALVE

The CV-98 valve has a ten (10) year warranty. The valverequires no internal maintenance. The valve is sealedclosed and must never be disassembled. If there is ever amalfunction of the CV-98 valve, the complete valve mustbe sent back to Ansul for warranty replacement. If theexternal seal is broken, the warranty is voided.


CV98/CV90/AP-8 Valve Flexible Discharge Bend

Description

The CV98/CV90/AP-8 valve Flexible Discharge Bend(Part No. 427082) is a 5/8 in. (1.59 cm) I.D. extra-heavyflexible hose which connects the valve discharge outlet tothe fixed piping or header manifold. The discharge bendhas a female 1.3-12-UN-3B thread for connecting to thevalve outlet and a male 1/2 in. NPT thread for connectingto the fixed piping or manifold. The discharge bend willwithstand a pressure of 9000 psi (621 bar). Its flexibleconnection allows for easy alignment of multiple cylinderbanks to fixed piping. Each bend has a built-in checkvalve that prevents loss of agent should the system dis-charge while any cylinder is removed.

ANSUL

Thread Size/Type

Component Material Valve End Manifold End Approvals

5/8 in. Flexible SAE 100 R2 1 5/16-12-UN-3B 1/2 NPT Male U.S. Coast Guard (162.038/7/0)Discharge Bend Type AT Female UL (EX-2968)

FM Approved

1-6REV. 1

Shipping AssemblyPart No. Description

427082 Flexible discharge bend842430 Washer

ANSUL INCORPORATED, ONE STANTON STREET, MARINETTE, WI 54143-2542 715-735-7411 Form No. F-90132-1 ©1999 Ansul Incorporated Litho in U.S.A.

18 7/8 IN.(47.9 cm)

MANIFOLD/END

1/2 IN. NPTMALE COUPLING

FEMALE ADAPTOR (THREAD 1 5/16 IN.-12N-3)(BRONZE)

VALVE END

CHECKSWAGE ON

000658


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HF Electric Actuator

Description

Electrical actuation of an agent cylinder is accomplishedby an HF electric actuator interfaced through anAUTOPULSE Control System. This actuator can be usedin hazardous environments where the ambient tempera-ture range is between 0 °F to 130 °F (–18 °C to 54 °C).The HF electric actuator meets the requirements ofN.E.C. Class I, Div. 1, Groups B, C, D and Class II, Div. 1,Groups E, F, G. A maximum of two HF electric actuatorscan be used on a single AUTOPULSE release circuit.When utilizing only one HF electric actuator, an in-lineresistor, Part No. 73606, is required in the supervisedrelease circuit.

The actuator specifications are:

Nominal Rated VoltageVoltage Minimum Maximum

12 VDC @ 0.57 amps 10.4 VDC* 14.0 VDC

In auxiliary or override applications, a manual-local over-ride valve actuator or a manual cable pull actuator can beinstalled on top of the HF electric actuator by removingthe safety cap.

An arming tool is required to reset the actuator after oper-ation. The actuator contains a standard 1/2 in. threadedfemale straight connector for electrical conduit hookup.

ANSUL


73327 HF electric actuator

1-5


HF Electric Actuator Body: 1/2 in. Straight Female UL (EX-2968)Brass FM Approved

PlungerStainlessSteel

*Minimum operating voltage is 9.0 VDC.

ANSUL and AUTOPULSE are registered trademarks.


4 1/2 IN.(11.4 cm)

2 1/4 IN.(5.7 cm)

001395

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Description

The Booster Actuator, Part No. 428949, is used when elec-tric actuation is required on the 1 in. selector valve, 2 in.selector valve, or the CV-98 cylinder valve. The actuatormounts directly to the component and then a HF electricactuator mounts to the top of the booster actuator.

The Booster Actuator requires resetting after actuation. AReset Tool, Part No. 429847, is available for this use.

System ComponentsUL EX-4510 11-1-00 Page 1-3.6

Booster Actuator

TYCO SAFETY PRODUCTS, MARINETTE, WI 54143-2542 715-735-7411 Form No. F-2001066 ©2001 Ansul Incorporated

ANSUL and INERGEN are trademarks of Ansul Incorporated or its affiliates.

006037

Ø 2.50

3.025

1 1/4 – 18 UNEF

1 1/8 – 18 UNEF

ANSUL®

System ComponentsUL EX-4510 3-1-06 Page 1-3.3

REV. 3

Description

Selector valves are used to direct the flow of INERGEN®

into a single hazard of a multiple hazard system.

When pneumatic actuation is required for the 1 in. and 2 in.valves, a Stackable Actuator Assembly, Part No. 428566,must be ordered separately.

When electric actuation is required for the 1 in. and 2 in.valves, a Booster Actuator, Part No. 428949, must beordered separately.

When electric actuation is required for the 2 1/2 in., 3 in.and 4 in. valves, a Selector Valve Electric Actuation Kit,Part No. 426893, must be ordered separately. NOTE:These selector valves cannot be pressure operated.

Selector valves can be manually operated by mounting alever actuator either directly onto the valve or onto the topof the electric actuator. See Lever Release ActuatorComponent Sheet for correct actuator.

Selector Valves

Component Material Thread Size/Type ApprovalsEquivalent Length(Sch. 80 Pipe)

1 in. Selector Valve Bronze 1 in. NPT Female UL (EX-4510), FM 1/2 in. – 1.9 ft. (0.6 m)(Used for 1/2 in., 3/4 in. – 6.4 ft. (1.9 m)3/4 in. and 1 in. 1 in. – 10.4 ft. (3.2 m)pipe sizes)

2 in. Selector Valve Bronze 2 in. NPT Female UL (EX-4510), FM 1 1/4 in. – 16.2 ft. (4.9 m)(Used for 1 1/4 in., 1 1/2 in. – 22.4 ft. (6.8 m)1 1/2 in. and 2 in. 2 in. – 67.4 ft. (20.5 m)pipe sizes)

2 in., 2 1/2 in., 3 in. Ductile 3 in. Flange UL (EX-4510), FM 2 in. – 17 ft. (5.2 m)Selector Valve Iron American Standard 2 1/2 in. – 43 ft. (13.1 m)

Raised Face 3 in. – 78 ft. (23.8 m)

4 in. Selector Valve Ductile 4 in. Flange UL (EX-4510), FM 4 in. – 111 ft. (33.8 m)Iron American Standard

Raised Face

NOTE: The 3 in. and 4 in. flanged selector valves latch open upon actuation. They must be manually reset by pulling outthe reset knob on the side of the pressure actuator. If the valve is not reset, it will reopen the next time the system isactuated, even if a different hazard requires protection.


427185 1 in. selector valve – threaded427150 2 in. selector valve – threaded857433 2, 2 1/2, 3 in. selector valve – flanged857445 4 in. selector valve – flanged

426893 Electric actuator kit842402 Brass cap428566 Pressure operated stackable actuator

ANSUL®

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TYCO SAFETY PRODUCTS, MARINETTE, WI 54143-2542 715-735-7411 Form No. F-99024-3 ©2006 Ansul Incorporated

A B C DValve Size Body in. (mm) in. (mm) in. (mm) in. (mm)

1 in. Threaded – 5 1/2 (140) — 2 9/16 (67) 7 (178)1 in. NPT female

2 in. Threaded – 7 1/2 (191) — 3 1/2 (89) 8 9/16 (218)2 in. NPT female

2 in., 2 1/2 in., Flanged – 13 (330) 5 3/4 (146) 6 1/8 (156) 16 1/4 (413)3 in. 3 in.

4 in. Flanged – 4 in. 16 (406) 5 3/4 (146) 8 3/4 (222) 19 7/8 (505)

C

A

B

IF FLANGED

006035

ANSUL and INERGEN are trademarks of Ansul Incorporated or its affiliates.

PRESSUREACTUATORASSEMBLY

3 IN. AND 4 IN. FLANGED VALVE 1 IN. AND 2 IN. THREADED VALVE

NOTE: A lever actuator, brass cap, or CV-98electric actuator, must be used with each selectorvalve. Valve will not operate properly without oneof these on top of pressure actuator assembly.

A

C

RESETKNOB

DD

1 1/8 – 18 UNEF

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Connecting Link

Description

The connecting link is used to connect the lever releaseslocated on the pilot cylinders together. When cable ormanual actuation is required, all cylinders will actuatesimultaneously. The connecting link can be used onCV90, MAX, or AP-8 Ansul carbon dioxide valves.

One size connecting link is available for all size cylinders.


ANSUL

Component Material Approvals

Connecting Link Steel U.S. Coast Guard (162.038/7/0)UL (EX-2968)


42514 Connecting link

1-28


PIVOT PIN

14 1/4 IN. (36.2 cm)

3/4 IN.(19 mm)

15/16 IN.(24 mm)

FLEXLOCK HEX NUT

000661a

000661c

001840

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Header Safety

Description

The header safety is a device used to relieve high pressurebuild-up in a closed section of piping. If actuation pressureshould get inadvertently trapped and should an increase intemperature cause the pressure to rise to a dangerouslevel, the burst disc in the header safety will rupture, allow-ing the pressure to escape. The header safety is availablewith 1/2 in. or 3/4 in. NPT threads.


ANSUL


Header Safety Brass 1/2 or 3/4 in. NPT Male U.S. Coast Guard (162.038/7/0)UL (EX-2968)FM Approved

1-45



40094 1/2 in. header safety40076 3/4 in. header safety78756 Replacement burst disc

1/2 IN. OR3/4 IN. NPT

SAFETY DISC

SAFETY DISCWASHER

SAFETY DISC NUT

000706b

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Pressure Switch – DPST

Description

The pressure switch is operated off the carbon dioxidepressure when the system is discharged. The pressureswitch can be used to open or close electrical circuits toeither shut down equipment or turn on lights or alarms.The double pole, single throw (DPST) pressure switch isconstructed with a gasketed, water tight housing. Thehousing is constructed of malleable iron, painted red. A1/4 in. NPT pressure inlet is used to connect the 1/4 in.pipe from the carbon dioxide system.

ANSUL


46250 Pressure switch – DPST

1-50

Component Material Thread Size/Type Electric Rating Approvals

Pressure Switch Switch: Conduit Inlet: 3/4 in. NPT Female 2 HP – 240 VAC/ Coast GuardDPST BAKELITE Pressure Inlet: 1/4 in. NPT 480 VAC (162.038/7/0)

Housing: Female 2 HP – 250 VDC, UL (EX-2968)Malleable 30A 250V AC/DC FM ApprovedIron 5A 480V AC/DCPiston:Brass


3 5/8 IN.(9.2 cm)

TO ELECTRICALEQUIPMENT TOBE CONTROLLED

TO POWER

3/4 IN.ELECTRICALCONDUITOUTLETS

1/4 IN. PIPEFROM CYLINDERS

1/4 IN. UNION

PISTON “O”RING GASKET

BRASS PISTON

BRASS RESETPLUNGER

GASKET NUT

DOUBLE POLE –HEAVY DUTYTOGGLE SWITCHWITH FULLYENCLOSED BAKELITE BASE

MOISTUREPROOF JOINT

“O” RING GASKET

NAMEPLATE

MALLEABLE IRONFINISH – RED PAINT

000716a 000716b

2 7/8 IN.(7.3 cm)

4 9/16 IN.(11.5 cm)

ANSUL is a registered trademark and BAKELITE is a trademark of Union Carbide Corp.

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Cylinder Bracketing

Description

The cylinder bracketing is designed to rigidly support theinstalled carbon dioxide cylinders. The bracketing compo-nents are constructed of heavy structual steel. Bracketassemblies are available in modules for two to six cylindersand can also be mated together for any combination oversix. Bracketing can be assembled to support single row,double row or back-to-back rows of cylinders. Bracketinguprights and weigh rail supports are also available forweighing cylinders in place. Bracketing components arepainted with a red enamel coating. Uprights and backframe assemblies can be bolted or welded together, whichever makes the installation more convenient. For weighingcylinders, a scale and lifting yoke is also available.

ANSUL

1-20


45120 50 lb. (22.7 kg) cylinder strap (single cylinder)45244 50 lb. (22.7 kg) cylinder channel with nuts and bolts (single cylinder)45121 75 lb. (34 kg) cylinder strap (single cylinder)45261 75 lb. (34 kg) cylinder channel with nuts and bolts (single cylinder)45122 100 lb. (45.4 kg) cylinder strap (single cylinder)45245 100 lb. (45.4 kg) cylinder channel with nuts and bolts (single cylinder)79638 Back frame assembly (2 cylinder)79639 Back frame assembly (3 cylinder)79640 Back frame assembly (4 cylinder)79641 Back frame assembly (5 cylinder)79642 Back frame assembly (6 cylinder)73257 Upright (used either for right or left side)73553 Single row or back-to-back row bracket foot (left side)73554 Single row or back-to-back row bracket foot (right side)73555 Double row bracket foot (left side)73556 Double row bracket foot (right side)73256 Center upright (required when weighing seven or more cylinders in a row)79413 Connector (required to hook together back frames for seven or more cylinders)73250 10 in. (25.4 cm) carriage bolt with nut (for single row 50 lb. (22.7 kg) cylinders)73251 10.5 in (26.7 cm) carriage bolt with nut (for single row 75 lb. (34 kg) cylinders)73252 12 in. (30.5 cm) carriage bolt with nut (for single row 100 lb. (45.4 kg) cylinders)73253 20 in. (50.8 cm) carriage bolt with nut (for double row 50 lb. (22.7 kg) cylinders)73254 20.5 in. (52.1 cm) carriage bolt with nut (for double row 75 lb. (34 kg) cylinders)73255 25 in. (63.5 cm) carriage bolt with nut (for double row 100 lb. (45.4 kg) cylinders)73266 Weigh rail (two cylinder)73267 Weigh rail (three cylinder)73268 Weigh rail (four cylinder)73269 Weigh rail (five cylinder)73270 Weigh rail (six cylinder)73091 Cylinder clamp (2 cylinders)73092 Cylinder clamp (3 cylinders

Component Material Approvals

Bracketing Steel U.S. Coast Guard(162.038/7/0)UL (EX-2968)FM Approved

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71683 Weigh rail support (single row)71682 Weigh rail support (double row)71684 Weigh rail support (back-to-back)74241 Scale69877 Lifting yoke


LEFT BRACKET FOOT

RIGHT BRACKET FOOT

BACK FRAME

UPRIGHT

WEIGH RAILSUPPORT

WEIGH RAIL

CARRIAGE BOLTWITH NUT

CYLINDERCLAMP

0001838


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Check Valve

Description

Check valves are used in main/reserve systems and onsystems protecting multiple hazards of different volumesusing selector valves to control the direction of agent flow.On main/reserve systems the check valve prevents pressur-ization of the reserve system manifold by blocking the flowof carbon dioxide from the main system. The check valveallows gas flow from the reserve (if actuated) to passthrough into the distribution piping. On selector valve sys-tems, the check valve prevents the cylinders from theselected hazard from pressurizing the manifold of the

cylinders required for protecting a larger hazard. Only thecylinders needed for the particular hazard are activated.

The check valves are available in sizes from 1/2 in. through3 in. Three body styles are available: threaded, weld neckflange, and threaded flange. The weld neck flange stylevalves are supplied with two (2) 600 lb. weld neck, flatfaced, forged steel flanges, complete with bolts, nuts andgaskets.

ANSULâ

Component Material Thread Size/Type Body Type Approvals

Check Valve Bronze 1/2 in. NPT Female Threaded U.S. Coast Guard (162.038/7/0)UL (EX-2968)FM Approved

Check Valve Bronze 3/4 in. NPT Female Threaded U.S. Coast Guard (162.038/7/0)UL (EX-2968)FM Approved

Check Valve Bronze 1 in. NPT Female Threaded U.S. Coast Guard (162.038/7/0)UL (EX-2968)FM Approved

Check Valve Bronze 1 1/4 in. NPT Female Threaded U.S. Coast Guard (162.038/7/0)UL (EX-2968)FM Approved


Check Valve Bronze 2 in. NPT Female Threaded U.S. Coast Guard (162.038/7/0)UL (EX-2968)FM Approved


1-36

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40860 1/2 in. check valve – threaded40852 3/4 in. check valve – threaded41470 1 in. check valve – threaded41549 1 1/4 in. check valve – threaded41463 1 1/2 in. check valve – threaded40649 2 in. check valve – threaded40656 2 1/2 in. check valve – threaded40794 2 in. check valve – weld neck flange46095 2 1/2 in. check valve – weld neck flange40672 3 in. check valve – weld neck flange40665 3 in. check valve – threaded flange

Check Valve - ThreadedDimension A Dimension B

Valve Size in. (cm) in. (cm)

1/2 in. 3 (7.6) 2 5/8 (6.6)3/4 in. 3 5/8 (9.2) 3 1/8 (7.9)

1 in. 4 1/8 (10.4) 3 3/4 (9.5)1 1/4 in. 5 (12.7) 4 1/2 (11.4)1 1/2 in. 5 1/2 (13.9) 5 1/8 (13)

2 in. 6 1/2 (16.5) 5 3/4 (14.6)2 1/2 in. 8 (20.3) 6 3/4 (17.1)

Component Material Thread Size/Type Body Type Approvals

Check Valve Body: N/A 2 in. Weld U.S. Coast Guard (162.038/7/0)Bronze Neck Flange UL (EX-2968)

Flange: FM ApprovedSteel

Check Valve Body: N/A 2 1/2 in. U.S. Coast Guard (162.038/7/0)Bronze Weld Neck UL (EX-2968)

Flange: Flange FM ApprovedSteel

Check Valve Body: N/A 3 in. Weld U.S. Coast Guard (162.038/7/0)Bronze Neck Flange UL (EX-2968)


Check Valve Body: 3 in. NPT Threaded U.S. Coast Guard (162.038/7/0)Bronze Flange UL (EX-2968)


000679a

B

A

BONNET

SPRING

CHECK

BODY


Check Valve - FlangedDimension A Dimension B

Valve Size in. (cm) in. (cm)

2 in. 10 1/4 (26) 7 1/2 (19)2 1/2 in. 10 3/4 (27.3) 8 11/16 (22.1)

3 in. 11 1/2 (29.2) 9 1/2 (24.1)

Check Valve - Threaded FlangeValve Dimension A Dimension B Dimension CSize in. (cm) in. (cm) in. (cm)

3 in. 11 1/2 (29.2) 15 (38.1) 9 1/2 (24.1)

A

C

B

CHECK

BODY

BONNET

SPRING

B

A

000683

001817


Header Vent Plug

Description

The header vent plug is used to release low pressure buildup that may occur in closed system utilizing time delays orselector valves. The header vent plug should also beinstalled on the cylinder sides of the check valves on bothmain and reserve systems to relieve any pressure that mayleak past the check valve and accidentally actuate thereserve system while the main system is discharging.


ANSUL


Vent Plug Body: 1/2 IN. NPT Male U.S. Coast Guard (162.038/7/0)Brass UL (EX-2968)

Spring: FM ApprovedBronze

Seal:Neoprene

1-46



40309 Header vent plug

7/8 IN.(2.2 cm)

STEM

BODY

WASHER

SPRINGCHECK SEAL

CHECKCUP

1/2 IN. NPT

29/32 IN.(2.3 cm)

000707a 000707b

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Nameplate – MAIN

Description

The ‘‘MAIN’’ nameplate is available for labeling compo-nents and/or remote pull stations to distinguish them fromreserve system components. The nameplate is furnishedwith four mounting holes for ease of installation.

ANSUL

Component Material Mounting Hole Size Approvals

Nameplate Aluminum 13/64 in. (.52 cm) U.S. Coast Guard (162.038/7/0)UL (EX-2968)FM Approved


41942 Nameplate – MAIN

1-21


1 7/8 IN.(4.7 cm)

4 – 13/64 IN. (.5 cm)DIAMETER HOLES

5/16 IN.(.8 cm)

2 1/2 IN.(6.4 cm)

5 1/2 IN.(13.9 cm)

4 7/8 IN.(12.4 cm)

MAIN

000723

PART NO. 41942



Nameplate – RESERVE

Description

The “RESERVE’’ nameplate is available for labeling com-ponents and/or remote pull stations to distinguish themfrom main system components. The nameplate is fur-nished with four mounting holes for ease of installation.

ANSUL

Component Material Mounting Hole Size Approvals

Nameplate Aluminum 13/64 in. (.52 cm) U.S. Coast Guard (162.038/7/0)UL (EX-2968)FM Approved


41943 Nameplate – RESERVE

1-22


1 7/8 IN.(4.8 cm)

4 – 13/64 IN. (.52 cm)DIAMETER HOLES

5/16 IN.(.8 cm)

2 1/2 IN.(6.4 cm)

5 1/2 IN.(13.9 cm)

4 7/8 IN.(12.4 cm)

RESERVE

000723

PART NO. 41943



Odorizer

Description

The odorizer is used to inject a small amount of winter-green scent into the carbon dioxide while flowing throughthe piping network. When the carbon dioxide dischargesinto the hazard area, it will carry a scent of wintergreenwith it. This wintergreen scent is a warning to personnelentering the hazard area that the area contains a concen-tration of carbon dioxide and precautions must be taken,either leave the area immediately or secure properbreathing apparatus. The internal ampoule containing theoil of wintergreen in the odorizer must be replaced aftereach system discharge.


ANSUL


42278 Odorizer42284 Replacement ampoule

1-49


Odorizer Steel 1 in. NPT Male U.S. Coast Guard (162.038/7/0)UL (EX-2968)FM Approved


000698

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AutoPulse

Detection and Control Components

Key Maintenance Switch

ANSUL

Features

• Stackable, screw-terminal, contact blocks

• Compatible with AUTOPULSE® control units

• Surface-mount assemblies listed by UnderwritersLaboratories, Inc.

• Components mounted on stainless steel switch plate

Applications

The Key Maintenance Switch is used to interrupt the releasecircuit signal to the fire suppression system. It is key-operat-ed to allow authorized personnel to deactivate the releasecircuit during service or maintenance. An indicator lamp,located on the switch plate, will light when the switch is in the“lock-out” mode to serve as a reminder that the release cir-cuit has been disconnected.

Description

The Key Maintenance Switch assembly consists of a key-operated switch, 24 VDC indicator lamp, normally-open con-tact block, normally-closed contact block, and stainless steelswitch plate with silk-screened label. Surface-mount assem-blies include a double-gang weather-proof box and gasket.

The stackable, screw-terminal contact blocks are rated for 28VDC @ 1.1 amp make/break or 6 amp continuous carry.

Listings and Approvals

The switch is UL listed when installed in the surface-mountbox (with gasket) that is provided with the surface-mountassembly.

Ordering Information

ShippingWeight

Part No. Description lb. (kg)

76498 Maintenance Switch, Surface-Mount 2.0 (0.9)

76499 Maintenance Switch, Flush-Mount 2.0 (0.9)

76485 Extra Contact Block, N.C. 0.25 (0.11)

76486 Extra Contact Block, N.O. 0.25 (0.11)

78179 Spare Key 0.25 (0.11)

470273 Extender-Back Box 0.25 (0.11)

3-33

MOUNTING DIMENSIONSSURFACE-MOUNT FLUSH-MOUNT

NORMALLOCK-OUT

ANSULFIRE SUPPRESSION SYSTEM ABORT

4 11/16 IN.(119 mm)

3 1/8 IN.(79 mm)

4 5/8 IN.(117 mm)

2 3/4 IN.(70 mm)

TYPICAL WIRING DIAGRAM

24 VDCACTUATOR

N.C.

N.O.

24 VDCINDICATOR LAMP

24 VDC POWERSOURCE

(–)

(+)

KEY-OPERATEDLOCK-OUT SWITCH

CONTROL UNITRELEASE CIRCUITTERMINALS*

POLARITY ISSHOWNIN ALARMCONDITION

* SEE CONTROL UNIT MANUAL FOR SPECIFIC WIRING REQUIREMENTS.

ANSUL and AUTOPULSE are trademarks of Ansul Incorporated or its affiliates.

ANSUL INCORPORATED, ONE STANTON STREET, MARINETTE, WI 54143-2542 715-735-7411 Form No. F-95110-1 2003 Ansul Incorporated Litho in U.S.A.

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hpco2(2)

Documents

remote pull

tyco safety

header vent

shipping assembly

back frame

weigh rail

weld neck

hf electric