Quinny 65040-AB manual Compressor does not Unload when there is no Air Demand

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Section IX - Troubleshooting

Probable Causes:	Corrective Action:

High Discharge Air Temperature (continued):

INCORRECT FAN ROTATION

BLOCKED WATER FLOW OR AIR FLOW

CLOGGED AIR FILTER

FAULTY SOLENOID VALVE

FAULTY GAUGES

FAULTY INDICATOR

BLOWDOWN VALVE FAILURE

AIREND FAILURE

RTD READING INCORRECTLY

THE FAN SHOULD PUSH AIR THROUGH THE COOLERS. IF INCORRECT, REVERSE FAN MOTOR STARTER LEADS L1 AND L2.

CLEAN COOLER. LOCATE AND CORRECT CAUSE OF CONTAMINATION.

CLEAN OR REPLACE AS NECESSARY.

CHECK AND REPLACE 4-WAY SOLENOID VALVE AS NECESSARY.

CHECK AND REPLACE AS NECESSARY.

CHECK AND REPLACE AS NECESSARY.

CHECK AND REPLACE AS NECESSARY. BOTH MUFFLERS SHOULD BE EXHAUSTING AIR DURING UNLOADED OPERATION.

CONTACT AN AUTHORIZED QUINCY SERVICE TECHNICIAN.

CONTACT AN AUTHORIZED QUINCY SERVICE TECHNICIAN.

Compressor does not Unload when there is no Air Demand:

INCORRECT AIR PRESSURE SENSORS	ADJUST TO PROPER SETTING (BACK-UP MODE ONLY).
SETTING
FAULTY AIR PRESSURE SENSORS	REPLACE SENSORS.
FAULTY SOLENOID VALVE	REPAIR OR REPLACE AS NECESSARY.
LEAKS IN CONTROL LINES	CHECK ALL CONTROL LINE FITTINGS AND TUBINGS.
LEAKS IN SERVICE LINES	CHECK LINES BEFORE MPC VALVE.
FAULTY LIFT VALVE(S)	REPAIR OR REPLACE AS NECESSARY.
FAULTY BLOWDOWN VALVE(S)	REPAIR OR REPLACE AS NECESSARY.

74	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 OperationPressure Readings Temperature Readings Water-cooledStopping the Compressor Emergency Section V Preparing for Maintenance or Service This page Intentionally Left Blank Fluid Specifications SafetySection VI Servicing 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$ync II Circuit BoardRocker Switch Settings Network Setup Network Voltage Tests on Power$ync II SystemsUP/DOWN DEADBAND, F1 EDIT, Enter Return Power-up Displays Start-upSection Viii Power$ync II Operation Compressor in Back-up Mode U19 Memory Failure Contact Your Service RepresentativeU19 Data Checksum Error Press F2 to Update Deadband Data Error Press F1 to ClearU19 Data not Initialized Press F2 to Initialize Filter Needs Servicing Please Replace AS Soon AS Possible Start-up Displays Operational DisplaysAdditional Sensors Compressor is StartingCompressor is Unloaded Compressor is Unloaded Minutes Left to ShutdownProgrammed Shutdown Compressor Settings and Maintenance Displays Mode and Pressure DisplaysCompressor Mode of Operation Auto Dual Timed Stop Press F1 Press F2Read Pressure Settings pages 34-35 before Press F1 to change the load and unload pressuresPlease Wait Network Configuration in Progress Machine ID SetupMachine ID for this Compressor Press Enter to Accept Value Before setting or changing a sequence, read Sequence Network DataUP/DOWN POSITION, F1 EDIT, Enter Return UP/DOWN Machine ID, Enter ReturnDAY Monday SEQ Abcd Network Configuration MenuDAY Monday SEQ To clear a particular sequence from the memory, press F1 Filter Service Hourmeters Reset Service HourmetersCompressor Hourmeter Menu Compressor Hourmeters Intake Filter HoursPress F1 to Reset Fluid Filter Hours Press Enter to Return Fluid Filter Hours Reset to Press Enter to ReturnPress F1 to Reset Fluid Hours Press Enter to Return Fluid Hours Reset to Press Enter to ReturnCompressor Maintenance Menu Compressor Control Test Time Menu To View Current TimeTo SET Time and Date Time and Date Menu Current Time on this ControlHorsepower Compressor Control Test Menu Unload Valve Test Press F1Unload Press Fluid PressUnit Configuration Date Modem Baud Rate SetupCompressor Diagnostic Menu View Shutdown LOG Network DiagnosticSection Viii Power$ync II Operation ETOL00 FTOL00 Network Connection Data Confidence Modem INITIALIZATION** Init Indicator is lit, the indicator will remain litF1 to EDIT/ENTER to Accept Value 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