AC International 8200 Series instruction manual Not Enough Pressure

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TROUBLE SHOOTING (CONT.)

CAUSES

16.Impeller partially plugged.

17.Cavitation; insufficient NPSHA (Net Positive Suction Head Available).

18.Defective impeller.

19.Foot valve too small or

partially obstructed.

20.Suction inlet not immersed deep enough.

21.Wrong direction of rotation.

22.System head too high.

23.Defective mechanical seal.

24.Speed too low.

25.Air leaks in suction piping or stuffing box.

26.Mechanical defects.

27.Vortex at suction inlet.

28.Obstruction in liquid passages.

29.Air or gases in liquid.

CURES

See item 9.

a.Increase positive suction head on pump by lowering pump or increasing suction pipe and fittings size.

b.Sub-cool suction piping at inlet to lower entering liquid temperature.

c.Pressurize suction vessel.

Inspect impeller, bearings and shaft. Replace if damaged or vane sections badly eroded.

Area through ports of valve should be at least as large as area of suction pipe (preferably 1.5 times). If strainer is used, net clear area should be 3 to 4 times area of suction pipe.

If inlet cannot be lowered or if eddies through which air is sucked persist when it is lowered, chain a board to suction pipe. It will be drawn into eddies, smothering the vortex.

Symptoms are an overloaded driver and about one third rated capacity from pump. Compare rotation of motor with directional arrow on pump casing. If rotation is correct with arrow, impeller may have to be turned 180°. (See CHANGING ROTATION.)

See item 4.

Repair or replace seal.

Not Enough Pressure

See item 5.

See item 11.

See item 18.

See item 20.

Check to see if suction and discharge valves are fully open. Dismantle pump and inspect passages and casing. Remove obstruction.

May be possible to over rate pump to a point where it will provide adequate pressure despite condition. Better provide gas separation chamber on suction line near pump and periodically exhaust accumulated gas. See item 17.

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Contents Series Base Mounted Centrifugal Fire Pumps Table of Contents Operational Limits DescriptionMaximum Working Pressure Seal Operating LimitsSafety Instructions Safety InstructionsElectrical Safety Additional Safety RequirementsThermal Safety Mechanical SafetyInstallation Pump LocationReceiving Pump Temporary Storage LocationFoundation Grouting Procedure Base Plate Setting Before PipingSee ANSI/OSHA Coupler Guard REMOVAL/INSTALLATION Alignment ProcedureANSI/OSHA Coupler Guard REMOVAL/INSTALLATION InstallationRemoval Correct Alignment Incorrect AlignmentAngulardial Parallelindicator AlignmentDoweling Suction and Discharge PipingSuction Piping Suction Installations Piping Supports not ShownValves in Suction Piping Discharge PipingValves in Discharge Piping Pressure Gauges Pump InsulationStuffing BOX Lubrication Controlled Pressure System PRE-START Checks OperationPriming StartingField Testing MaintenanceGeneral Maintenance Maintenance of Pump DUE to Flood DamageCleaning Without Dismantling Pump Bearing Lubrication GreasePacking Seal Every Month Months Every Year Maintenance Time TableCauses Trouble ShootingCures No Liquid DeliveredNot Enough Pressure Pump Takes Too Much Power Causes CuresPump Operates For Short Time, Then Stops Changing Rotation Clockwise Rotation Viewed from the Coupling ENDCounterclockwise Rotation Viewed from the Coupling END Service Instructions Disassembly and Reassembly ProceduresDismantling Pump with Packing Page Dimension a = Assembly Pump with Packing 350 FT.LBS MIN. Torque Required Page Casing Data Appendix a Engineering DataStuffing BOX Data Impeller Design DataExploded View 8200 Series Fire Pump Clockwise Rotation Appendix BPart Number Part Name Quantity Replacement Parts ListInstructions for Ordering Parts Appendix C Field Test Report Useful Formulas Single Phase Motor Three Phase MotorFire Pump Canada

8200 Series specifications

The AC International 8200 Series represents a cutting-edge advancement in the realm of commercial and industrial automation. Tailored for efficiency and flexibility, this series is designed to meet the rigorous demands of modern applications across various sectors such as manufacturing, logistics, and energy management.

One of the standout features of the AC International 8200 Series is its robust control system. Equipped with an advanced microprocessor, the system ensures high performance, enabling real-time data processing and decision-making. This feature enhances the capability of users to manage complex operations while maintaining optimal productivity levels.

The 8200 Series integrates seamlessly with the latest communication protocols, such as Ethernet/IP and Modbus, allowing for smooth integration into existing infrastructures. This interoperability ensures that organizations can adopt the new series without incurring significant costs associated with overhauling their current systems.

Energy efficiency is another key characteristic of the 8200 Series. It incorporates a variety of smart technologies, including power monitoring and energy-saving modes, which help organizations reduce their operational costs and environmental footprint. These features are especially beneficial in industries where energy consumption is a significant concern.

In terms of user interface, the AC International 8200 Series offers a customizable touchscreen display that provides operators with real-time insights into their systems. This user-friendly interface facilitates quick troubleshooting and comprehensive monitoring, thereby promoting operational efficiency.

Furthermore, the series boasts enhanced safety features, including emergency stop functions and overload protection mechanisms. These safety characteristics are critical in environments where machinery operates at high capacities, ensuring the well-being of personnel and minimizing risks associated with operational failure.

With its modular design, the 8200 Series allows for easy scalability. This means that businesses can expand their systems according to growth and evolving demands without compromising performance or requiring extensive modifications.

Finally, AC International backs the 8200 Series with unparalleled customer support and comprehensive training resources, ensuring that businesses can fully harness the potential of their investments. As industries continue to evolve and embrace digital transformation, the AC International 8200 Series stands out as an essential solution for those looking to improve efficiency, safety, and sustainability in their operations.
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