Victaulic FireLock 758-EPA Series Installation, Maintenance, & Testing Manual Download | Manualshive

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Series 758-EPA

FireLock

™

Preaction Valve

with Series 79N

Electric/Pneumatic Actuator

Double-Interlock Electric/Pneumatic Release

Hang these instructions on the

installed valve for easy future reference.

Failure to follow instructions and warnings can result in serious personal injury, property damage, and/or product failure.

• Read and understand all installation instructions before attempting to install any Victaulic piping products.

• Wear safety glasses, hardhat, and foot protection.

If you need additional copies of any literature, or if you have any questions about the safe installation and operation of this product,
contact Victaulic Company, P.O. Box 31, Easton, PA 18044-0031, USA, Telephone: 1-800-PICK VIC, e-mail: [email protected].

Installation, Maintenance, & Testing Manual

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Summary of Contents for FireLock 758-EPA Series

Page 1: ...product failure Read and understand all installation instructions before attempting to install any Victaulic piping products Wear safety glasses hardhat and foot protection If you need additional cop...

Page 2: ...Actuator Trim Assembly Drawing Numbers 5 Section View Drawing and Description 79N Electric Pneumatic Actuator 6 Section View Drawing and Description Series 746 Dry Accelerator 7 Compressor and Air Ma...

Page 3: ...visitors away Keep all visitors a safe distance away from work areas MAINTENANCE AND TESTING 1 Notify the authority having jurisdiction Always notify the authority having jurisdiction before taking a...

Page 4: ...38 356 508 394 292 191 127 127 19 1 29 5 4 4 500 15 03 31 00 15 00 21 00 15 00 12 00 8 00 9 00 6 00 55 0 95 0 100 114 3 381 76 787 381 533 381 305 203 229 152 24 9 43 1 6 6 625 16 00 30 00 16 00 22 00...

Page 5: ...eries 757 Air Maintenance Device Optional 8 Alarm Line Ball Valve NO 27 EPS 10 Alarm Pressure Switch Optional 9 Series 729 Drip Check Valve 28 EPS 40 Supervisory Switch Optional 10 Alarm Test Ball Val...

Page 6: ...58830 Z024758880 8 Z080758830 Z080758880 200 3 Z024758830 Z024758880 80 1 17 16 12 11 21 20 9 4 19 3 10 18 7 6 5 8 14 13 2 15 BILL OF MATERIALS 1 Valve Body 8 Bolt Seal 15 Cover Plate Bolts Qty 7 2 Cl...

Page 7: ...stem air pressure decays to 6 5 psi 45 kPa the auto vent s compression spring exerts a force greater than the air pressure in the upper middle chamber The auto vent opens and all air pressure in the u...

Page 8: ...strictor When a rapid loss of system air pressure occurs such as an open sprinkler air escapes from the closing chamber faster than it does from the opening chamber As the sprinkler system s pressure...

Page 9: ...Regulate the air pressure to the proper system air pres sure Air pressure differing from the required system air pressure could adversely affect system operation 4 Restrict the air supply to ensure th...

Page 10: ...746 Dry Accelerators 1 When a Series 746 Dry Accelerator is used with the Series 79N Electric Pneumatic Actuator the air mainte nance trim assembly MUST be used with the air regula tor 2 In the event...

Page 11: ...pneumatic system Both switches must be set to the notes below 1 Wire the air supervisory switches to activate a low pressure alarm signal NOTE The authority having juris diction may also require a hi...

Page 12: ...to the accelerator is closed 5 Open the piston charge line ball valve SERIES 749 AUTO DRAIN ASSEMBLY 6 Remove the protective cap from the Series 749 Auto Drain Make sure the Series 758 Preaction Valv...

Page 13: ...to between 13 psi 90 kPa minimum and 18 psi 124 kPa maximum 8a Confirm that the system is charging by observing the air pressure gauge If the gauge is not showing an increase in air pressure there is...

Page 14: ...evice 9 Open the slow fill ball valve on the air maintenance device 10 Open the piston charge line ball valve 11 Remove the protective cap from the Series 749 Auto Drain Make sure the protective cap i...

Page 15: ...ball valve on the Series 746 Dry Accelerator 14b Close the turn vent ball valve on the Series 746 Dry Accelerator This will set the accelerator 15 Observe the system air pressure over a 24 hour perio...

Page 16: ...n the alarm line s piping 20a If water is flowing from the drip check close the water supply s main control valve and start over at step 1 Refer to the Troubleshooting section on page 34 Take precauti...

Page 17: ...fer to table below 24 Notify the authority having jurisdiction remote sta tion alarm monitors and those in the affected area that the system is in service Valve Normal Operating Position Piston Charge...

Page 18: ...es sure 4 Verify that the valve s intermediate chamber is dry No water should flow from the drip check 5 Verify that the system is pressurized at the proper air pressure for the local water supply pre...

Page 19: ...4 Provide test results to the authority having jurisdic tion if required Water Flow Alarm Test Perform the water flow alarm test on a frequency required by the current NFPA 25 code The authority havin...

Page 20: ...tion of all alarms is verified 7 Open the alarm drain ball valve as shown above 8 Verify that all alarms stopped sounding that the alarm line drained properly and that remote station alarms reset prop...

Page 21: ...the authority having jurisdiction in the affected area 1 Notify the authority having jurisdiction remote station alarm monitors and those in the affected area that the water level and low air alarm te...

Page 22: ...re at which the low air alarm activates 8 Close the system main drain valve 9 Open the fast fill ball valve on the air maintenance device Bring the pressure back up to normal system pres sure 9a When...

Page 23: ...steady flow of water flows from the open water supply main drain valve 13 When a steady flow of water occurs close the water supply main drain valve Accelerator turn Vent Ball Valve Accelerator Isolat...

Page 24: ...in your area may require that you perform this partial trip test on a more frequent basis Verify these requirements by contacting the authority having jurisdic tion in the affected area 1 Notify the...

Page 25: ...ce section starting on page 11 Full Trip Test Victaulic recommends full trip testing every three years This test allows a full flow of water into the sprinkler sys tem therefore this test must be perf...

Page 26: ...ng the remote system test valve inspector s test connection to when water flows from the test connection s outlet d All information required by the authority having juris diction 7 Confirm that all al...

Page 27: ...ystem out of service 5 Open the water supply main drain valve as shown above 6 Confirm that no water is flowing from the water supply main drain Depressurize and drain piping systems before attempting...

Page 28: ...lapper out of valve body Inspect clapper seal and seal retaining ring Wipe away any contaminants dirt and mineral deposits Clean any holes in the valve body seat ring that are plugged DO NOT USE SOL V...

Page 29: ...pper Seal 1 Perform steps 1 11 of the Required Internal Inspec tion section starting on page 26 2 Remove seal assembly bolt bolt seal from clapper seal as shown above 3 Remove seal retaining ring Depr...

Page 30: ...eal ring is toward sealing surface of clapper seal as shown above 7 Insert seal washer carefully underneath sealing lip of gasket 8 Make sure clapper is free of contaminants dirt and mineral deposits...

Page 31: ...ing on page 26 2 Remove clapper shaft retaining plugs from valve body 3 Remove clapper shaft as shown above NOTE As the shaft is being removed the two spacers and clapper spring shown above will drop...

Page 32: ...shown above 9 Apply thread sealant to clapper shaft retaining plugs and install into valve body 10 Check clapper for freedom of movement 11 Replace the cover plate by following the Installing Cover Pl...

Page 33: ...e damage to cover plate gasket resulting in valve leakage Size inches Torque ft lbs Size inches Torque ft lbs Size inches Torque ft lbs 1 30 76 1 mm 60 6 115 40 41 81 150 156 2 30 3 60 165 1 mm 115 50...

Page 34: ...supplied strainer screen Insert the strainer screen into the strainer assembly 5 Install the strainer assembly into the Series 79N care fully Avoid damage to the o ring seals 6 Re install the Series...

Page 35: ...m and trim Confirm proper operation of air maintenance device Dry accelerator does not operate within a 5 psi 34 kPa pressure drop in system air pressure Loss of air pressure in upper air chamber of d...

Page 36: ...s to be free from defects in materials and workmanship under normal conditions of use and service Our obligation under this warranty is limited to repairing or replacing at our option at our factory a...

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