Section V Preparing for Maintenance or Service | Quinny 65040-AB

Section V - Preparing for Maintenance or Service

The following procedure should be used for maximum safety when preparing for maintenance or service:

1)Disconnect and lockout the main power switch and hang a sign at the switch of the unit being serviced.

2)Close the manual shut-off valve (block valve) between the receiver and plant air system to prevent any back-up of air flow into the area to be serviced. Never depend upon a check valve to isolate the system.

3)Open the manual vent valve and wait for the pressure in the system to be completely relieved before starting service. DO NOT close the manual vent valve at any time while servicing.

4)Shut off water and depressurize system if water- cooled.

!WARNING

Never assume the compressor is ready for maintenance or service because it is stopped. The automatic dual control may start the compressor at any time. Death or serious injury could result.

24	Quincy Compressor® - QSD™

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Quinny 65040-AB manual Section V Preparing for Maintenance or Service

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 General Safety Alert Symbols Spare Parts Ordering Information Section II Description General Description Compression Cycle and Air Flow Moisture Separator Cooling SystemLubricating Fluid System Water-cooled Capacity Control System Electrical System Back-up Control Shutdown Conditions Main Power on Light IndicatorsSafety Sensors High Discharge Air Temperature Lights Section II Description Receiving Section III InstallationMoving the Unit to the Installation Site Location Piping Connections Manual Shutoff Valve Piping Fit-up Electrical Guards Water Flow Water Quality Fluid Level Fan Rotation Starting the Compressor Section IV Operating ProceduresPrior to Starting Stopping the Compressor Normal Operation Stopping 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 Life Preparation for New Seal Installation Input Shaft Seal Seal Installation Airend Sealing System Pressure Switch Back-up Operating Mode Section VII Service AdjustmentsPressure Switch Adjusting Pressure Switch This page Intentionally Left Blank Back-up Mode Operation Section Viii Power$ync II OperationIntroduction to Power$ync Do not switch modes with power on the compressor Single Machine Operational Modes Multiple Machine Operational ModeAuto Dual Time Delay Continuous Run Pressure Settings Network Load Delay Time Network Installation Connecting Cable to the Power$ync II Circuit Board Rocker Switch Settings UP/DOWN DEADBAND, F1 EDIT, Enter Return Network Voltage Tests on Power$ync II SystemsNetwork Setup Power-up Displays Start-up Section Viii Power$ync II Operation Compressor in Back-up Mode U19 Memory Failure Contact Your Service Representative U19 Data not Initialized Press F2 to Initialize Deadband Data Error Press F1 to ClearU19 Data Checksum Error Press F2 to Update Filter Needs Servicing Please Replace AS Soon AS Possible Additional Sensors Start-up DisplaysOperational Displays Compressor is Starting Programmed Shutdown Compressor is Unloaded Minutes Left to ShutdownCompressor is Unloaded Compressor Mode of Operation Auto Dual Timed Stop Press F1 Compressor Settings and Maintenance DisplaysMode and Pressure Displays Press F2 Read Pressure Settings pages 34-35 before Press F1 to change the load and unload pressures Machine ID for this Compressor Press Enter to Accept Value Machine ID SetupPlease Wait Network Configuration in Progress UP/DOWN POSITION, F1 EDIT, Enter Return Before setting or changing a sequence, readSequence Network Data UP/DOWN Machine ID, Enter Return DAY Monday SEQ Network Configuration MenuDAY Monday SEQ Abcd To clear a particular sequence from the memory, press F1 Compressor Hourmeter Menu Compressor Hourmeters Filter Service HourmetersReset Service Hourmeters Intake Filter Hours Press F1 to Reset Fluid Hours Press Enter to Return Press F1 to Reset Fluid Filter Hours Press Enter to ReturnFluid Filter Hours Reset to Press Enter to Return Fluid Hours Reset to Press Enter to Return To SET Time and Date Compressor Maintenance Menu Compressor Control TestTime Menu To View Current Time Time and Date Menu Current Time on this Control Unload Press HorsepowerCompressor Control Test Menu Unload Valve Test Press F1 Fluid Press Compressor Diagnostic Menu View Shutdown LOG Unit Configuration DateModem Baud Rate Setup Network Diagnostic Section Viii Power$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 Pressed Motor Overload STG 2 Discharge RTD Failure Control log has no entries at that point Section IX Troubleshooting Probable Causes Corrective Action Failure to Start Section IX Troubleshooting Unscheduled Shutdown Probable Causes Corrective Action Unscheduled Shutdown Probable Causes Corrective Action Low Air Delivery Frequent Air Cleaner CloggingHigh Discharge Air Temperature Frequent Fluid Filter Clogging Compressor does not Unload when there is no Air Demand Too Rapid Cycling Between Load and Unload Water in Buffing Air Vent Bowls Pressure Relief Valve ExhaustingExcessive Fluid in Buffing Air Vent Bowls Excessive Fluid in Gearbox Vent Bowl Low Delivery Pressure High Interstage Pressure Erroneous Displays Microprocessor Will Not Display Messages Section X- Maintenance Schedule Interval Action Daily Operating Record Quincy Compressor QSD Quincy Compressor QSD