Quinny 65040-AB manual Manual Shutoff Valve, Piping Fit-up

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Section III - Installation

Piping Fit-up

Pressure Relief Valves

Care must be taken to avoid assembling the piping in a strain with the compressor. Piping should line up without having to be sprung or twisted into position. Adequate expansion loops or bends should be installed to prevent undue stress at the compressor resulting from the changes between hot and cold conditions. Pipe supports should be mounted independently of the compressor and anchored, as necessary, to limit vibration and prevent expansion strains. The piping should never be smaller than the connection on the compressor.

Pressure relief valves are sized to protect the system. Never change the pressure setting or tamper with the valve. Only the relief valve manufacturer or an approved representative is qualified to make such a change.

Manual Shutoff Valve

Install a manual shut-off valve (block valve) to vent the compressor and discharge line to the atmosphere. In those instances where the air receiver tank services a single compressor, the manual shut-off valve can be installed in the receiver. When a manual shut-off valve is used, a pressure relief valve is installed upstream from the manual shut-off valve. These valves should be designed and installed to permit maintenance to be performed in a safe manner. Never substitute a check valve for a manual shut-off valve if the purpose is to isolate the compressor from a system for servicing. If a manual shut-off valve is installed at the service connection, it must be open to allow air to pass to the service line when the compressor is operating. Provide drip legs in the air piping from the compressor as good installation practices dictate.

NOTE

Never operate the compressor with the shut-off valve closed. If the compressor is operated with the shut-off valve closed, a pressure related shutdown will occur.

!WARNING

Relief valves are to protect system integrity in accordance with ANSI/ASME B19 safety standards. Failure to provide properly sized relief valves could cause death or serious injury.

Relief valves are placed ahead of any potential blockage point which includes, but is not limited to, such components as shut-off valves, heat exchangers, and discharge silencers. Ideally, the relief valve should be threaded directly into the pressure point it is sensing, not connected with tubing or pipe. Always direct discharge from relief valves to a safe area away from personnel.

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Quincy Compressor® - QSD™

 

 

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Contents QSD Series Page Table of Contents Section V Maintenance or Service Preparation Standard Warranty Dimensional Data air-cooled Dimensional Data water-cooled Safety Precautions Section I GeneralSafety Alert Symbols Spare Parts Ordering InformationSection II Description General Description Compression Cycle and Air FlowCooling System Lubricating Fluid SystemMoisture Separator Water-cooledCapacity Control System Electrical System Back-up Control Shutdown ConditionsIndicators Safety SensorsMain Power on Light High Discharge Air Temperature LightsSection II Description Section III Installation Moving the Unit to the Installation SiteReceiving LocationPiping Connections Manual Shutoff Valve Piping Fit-upElectrical GuardsWater Flow Water QualityFluid Level Fan RotationSection IV Operating Procedures Prior to StartingStarting the Compressor Stopping the Compressor Normal OperationStopping the Compressor Emergency Temperature Readings Water-cooledPressure Readings Section V Preparing for Maintenance or Service This page Intentionally Left Blank Section VI Servicing SafetyFluid Specifications Air Filter Fluid LifePreparation for New Seal Installation Input Shaft SealSeal Installation Airend Sealing SystemSection VII Service Adjustments Pressure SwitchPressure Switch Back-up Operating Mode Adjusting Pressure SwitchThis page Intentionally Left Blank Section Viii Power$ync II Operation Introduction to Power$yncBack-up Mode Operation Do not switch modes with power on the compressorMultiple Machine Operational Mode Auto Dual Time DelaySingle Machine Operational Modes Continuous RunPressure Settings Network Load Delay TimeNetwork Installation Connecting Cable to the Power$ync II Circuit BoardRocker Switch Settings UP/DOWN DEADBAND, F1 EDIT, Enter Return Network Voltage Tests on Power$ync II SystemsNetwork Setup Power-up Displays Start-upSection Viii Power$ync II Operation Compressor in Back-up Mode U19 Memory Failure Contact Your Service RepresentativeU19 Data not Initialized Press F2 to Initialize Deadband Data Error Press F1 to ClearU19 Data Checksum Error Press F2 to Update Filter Needs Servicing Please Replace AS Soon AS Possible Start-up Displays Operational DisplaysAdditional Sensors Compressor is StartingProgrammed Shutdown Compressor is Unloaded Minutes Left to ShutdownCompressor is Unloaded Compressor Settings and Maintenance Displays Mode and Pressure DisplaysCompressor Mode of Operation Auto Dual Timed Stop Press F1 Press F2Read Pressure Settings pages 34-35 before Press F1 to change the load and unload pressuresMachine ID for this Compressor Press Enter to Accept Value Machine ID SetupPlease Wait Network Configuration in Progress Before setting or changing a sequence, read Sequence Network DataUP/DOWN POSITION, F1 EDIT, Enter Return UP/DOWN Machine ID, Enter ReturnDAY Monday SEQ Network Configuration MenuDAY Monday SEQ Abcd To clear a particular sequence from the memory, press F1 Filter Service Hourmeters Reset Service HourmetersCompressor Hourmeter Menu Compressor Hourmeters Intake Filter HoursPress F1 to Reset Fluid Filter Hours Press Enter to Return Fluid Filter Hours Reset to Press Enter to ReturnPress F1 to Reset Fluid Hours Press Enter to Return Fluid Hours Reset to Press Enter to ReturnCompressor Maintenance Menu Compressor Control Test Time Menu To View Current TimeTo SET Time and Date Time and Date Menu Current Time on this ControlHorsepower Compressor Control Test Menu Unload Valve Test Press F1Unload Press Fluid PressUnit Configuration Date Modem Baud Rate SetupCompressor Diagnostic Menu View Shutdown LOG Network DiagnosticSection Viii Power$ync II Operation ETOL00 FTOL00 Network Connection Data Confidence F1 to EDIT/ENTER to Accept Value Indicator is lit, the indicator will remain litModem INITIALIZATION** Init Compressor has Shut Down Emergency Stop Button WAS Pressed Sequence Data Error Press F1 to Clear Schedule Data Error Compressor has Shut Down Take Corrective Action Back-up Mode until all faults have been corrected Inlet Temp Fluid Pressure STG 1 OUT Temp STG 2 in Temp Shutdown Log Messages Emergency Stop PressedMotor Overload STG 2 Discharge RTD Failure Control log has no entries at that point Section IX Troubleshooting Probable Causes Corrective Action Failure to StartSection IX Troubleshooting Unscheduled ShutdownProbable Causes Corrective Action Unscheduled Shutdown Frequent Air Cleaner Clogging High Discharge Air TemperatureProbable Causes Corrective Action Low Air Delivery Frequent Fluid Filter CloggingCompressor does not Unload when there is no Air Demand Too Rapid Cycling Between Load and Unload Pressure Relief Valve Exhausting Excessive Fluid in Buffing Air Vent BowlsWater in Buffing Air Vent Bowls Excessive Fluid in Gearbox Vent BowlLow Delivery Pressure High Interstage PressureErroneous Displays Microprocessor Will Not Display MessagesSection X- Maintenance Schedule Interval ActionDaily Operating Record Quincy Compressor QSD Quincy Compressor QSD
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