Emerson VSSG, VSG manual Coalescing Oil Return Line Setup, Operation

Page 58

Coalescing Oil Return Line Setup

Section 4 • Operation

Coalescing Oil Return Line Setup

Over time, oil will accumulate on the coalescing side of the oil separator. As a result, an oil return line with a shut-off valve, sight-glass, check valve and needle valve are installed between the coalescing side and compres- sor to return this oil back to the compressor.

To adjust the return ﬂow, proceed with the follow procedure:

NOTE

Do not fully open the needle valve unless directed by Vilter Customer Service. Leaving the needle valve fully open will reduce efﬁciency of the compressor unit.

1.Open shut-off valve on coalescing side of oil separa- tor, see Figure 4-14.

2.While the unit is in operation, crack open needle valve and observe oil ﬂow through sight-glass.

3.Slowly open needle valve more until a small amount of oil is seen in the sight-glass.

NOTE

The sight-glass should never be full with oil.

4.Periodically check oil in the sight-glass and ensure that there is ﬂow.

Needle

Valve

Coalescing Oil Return Line

Figure 4-14. Coalescing Oil Return Line

Check Valve

Sight-Glass

Shut-Off

Valve

4 – 14

VSG/VSSG • Installation, Operation and Maintenance Manual •Vilter/Emerson • 35391SSG

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Contents Installation, operation & maintenance manual VSG/VSSG compressor unitPage VSG/VSSG Standard Vilter Warranty Statement READ CAREFULLY BEFORE INSTALLING AND STARTING YOUR COMPRESSOR Important MessageVilter Manufacturing LLC Section Title Table of ContentsSection 3 Installation Section 1 General InformationSection Number Section 5 Maintenance/ServiceSection 6 Troubleshooting Section 4 OperationAppendices Section 7 Warranty and PartsList of Tables and Figures Table/FigureFigure 3-12. Installation of Coolers - Next to Buildling Section 1 General Information How To Use This Manual Section 1 General Information Gas Compressor Unit Model Designations Figure 1-1. Gas Compressor Unit Model DesignationSection 1 General Information System Unit Identiﬁcation Compressor Unit Component Identiﬁcation Section 1 General InformationFigure 1-2. Gas Compressor Unit Components 1 of Figure 1-2. Gas Compressor Unit Components 2 of Section 1 General Information Component Identiﬁcation Continued Figure 1-2. Gas Compressor Unit Components 3 ofSection 1 General Information Piping & Identiﬁcation Component Tags Position Transmitter Symbols and Identiﬁcations3-Way Thermostatic Valve High Side Float Valve Steady-Mount Bulb & Capillary 1 - 10 / Blank Oil Life and Oil Flow Section 2 Theory of OperationGas Flow Figure 2-1. Gas Compressor Unit P&IDControl System RTDs and Pressure TransducersThis is a continuous cycle Rigging and Lifting of Compressor Unit Section 3 InstallationDelivery Inspection Figure 3-1. Rigging and Lifting PointsLong Term Storage Recommendations The following are recommendations regarding long term storageRecommended Onsite Tools Compressor Unit Inspections Prior to Storage or InstallationAIR COOLED OIL COOLERS LONG TERM STORAGE LOG Compressor has been placed in operation as ofConsiderations Prior to Starting FoundationFoundation Materials Building the FoundationCompressor Unit Installation of both Check the ability of the soil to carry the loadLeveling and Grouting recommendations for setting, precautions, mixing, andAdditional Information Codes and Standards LEVEL Figure 3-6. Housekeeping Pad Dimension Detail - Top View2 - # CLOSED TIES CENTER LINE 5 - # 6 VERT COMPRESSOR UNIT HOUSEKEEPING PADSPiping 010Ä5*4+0- 214176 4%1//0&& 14 175-2+0 10%46 $#5Fz lbf Table 3-2. Maximum Allowable Flange LoadsNozzle Dia. in Fy lbfONE FAN DIAMETER NOT PREFERRED HOT AIR RECIRCULATION Figure 3-13. Discharge Elevation of Coolers Figure 3-14. Cooler Placement and SpacingPREFERRED Unit Oil Charging and Priming Pressure TestingInitial Oil Charging Using Non -Vilter Oils Do not hydro test compressur unit. Failure to complyMinimum Operating Level Normal Operating Level Maximum NON-Operating LevelBypass Valve OIL MIXING CLOSESUCTION INLET OPEN VALVEPriming Remote Oil Cooler and Piping Section 3 InstallationInitial Oil Charging REMOTEOIL FILTER OPEN SUCTION INLETMOTOR Section 3 Installation Pre Start-Up Pre Start-Up Checklist15. Verify that all valves are in the open position Section 3 Installation Start-Up Oil Inspection Section 4 OperationOperation Dual Oil FiltersStarting, Stopping and Restarting the Compressor Starting Control System CalibrationStopping/Restarting Calibrate Slide Valve ActuatorsFigure 4-2. Actuator Assembly Section 4 Operation Figure 4-4. Slide Valve Calibration Screen Compact Logix PLC Figure 4-5. Photo-chopperAngle/Slide Travel Table 4-1. Command Shaft Rotation SpeciﬁcationsCapacity Oil Temperature Control Valve Oil Mixing Valve Operation 18. Press the “Set Max” buttonFail Position Purging with Dry Nitrogen 10. Close discharge bleed valve while still purging Pressure Indicator Purging with Dry GasOIL SEPARATOR Section 4 Operation Figure 4-12. Suction Bypass Valve and Equalizing Solenoid Suction Oil Figure 4-13. Suction Oil Charging ValveCoalescing Oil Return Line Setup Unit Table 5-1. Maintenance/Service ScheduleOil Circuit ControlMaintaining Proper Operation Section 5 Maintenance/ServiceMaintenance/Service Compressor Unit Isolation forCompressor Unit Leak Check sample for analysis. For an example, see Figure 5-2. Fill Oil System Components Oil SamplingUse Vilter Oil Analysis Kit VPN 3097A to collect an oil Send samples immediately to the oil analysis lab afterOil Charging Dual Oil Filter Assembly Oil Filter ReplacementSingle Oil Filter Assembly Oil DrainingVent Valve Drain Valve Inlet Shut-Off Valves Coalescing Filter Coalescing Filter ReplacementCentering Strap Oil Pump Strainer View From Back of Oil Pump StrainerTable 5-3. Shaft and Hub Distances Drive Coupling Form-Flex BPU Hub InstallationSize Drive Center Member Installation and Alignment 17. Install set screw in hub cap to secure key in keyway of shaftTable 5-4. Hub Clamp Bolt and Set Screw Torque Speciﬁcations Table 5-5. Disc Pack Installation Torque SpeciﬁcationsAngular Alignment Drive Coupling Type C Sure-Flex Replacement Drive Coupling Form-Flex BPU Center Member and Hub RemovalCompressor Replacement Table 5-6. Clamping Bolts and Set Screw Torque SpeciﬁcationsLock Washer Compressor Shaft Bearing Float Inspections Figure 5-11. Bearing Axial Float InspectionFigure 5-12. Bearing Radial Float Inspection Gate Rotor Float and Gate Rotor Bearing Float InspectionTable 5-7. Maximum Bearing Float Figure 5-13. Gate Rotor FloatApplied Force Rigidly attach dial indicator Use bolt for fulcurm Table 5-8. Gate Rotor FloatFigure 5-14. Gate Rotor Bearing Float Gate rotor bearing float being measuredSection 5 Maintenance/Service Gate Rotor and Support Clearance Figure 5-15. Gate Rotor and Support Clearance - Minimum ClearancesGate Rotor Support Gate Rotor Figure 5-16. Gate Rotor and Support Clearance - MeasuringGate Rotor Support Gate Rotor Gate Rotor Support Gate Rotor Straight Edge Straight Edge Straight EdgeVSG 301-701 Compressors Gate Rotor Assembly Replacement All VSG & VSSG Compressors ExceptTable 5-9. Gate Rotor Tool Sets Figure 5-17. Gate Rotor Assembly Removal and Tools Figure 5-18. Gate Rotor Assembly RemovalFigure 5-19. Gate Rotor Assembly and Tools Figure 5-20. Gate Rotor and Shelf ClearanceGate Rotor Assembly Replacement VSG 301-701 Compressors ONLY Figure 5-21. Gate Rotor Assembly BreakdownFigure 5-23. Gate Rotor and Shelf Clearance Figure 5-22. Gate Rotor Thrust BearingFigure 5-25. Gate Rotor Blade Installation Gate Rotor DisassemblyFigure 5-24. Gate Rotor Blade Assembly Figure 5-27. Thrust Bearing Installation Figure 5-26. Gate Rotor Thrust BearingSlide Valve Actuator Assembly Replacement Figure 5-28. Roller Bearing AssemblyCommand Shaft Seal Replacement Command Shaft Assembly ReplacementFigure 5-29. Command Shaft Seal Figure 5-30. Command Shaft Seal Installation Solution Section 6 TroubleshootingProblem Table 6-1. Slide Valve Actuator Troubleshooting Guide 1 ofTable 6-1. Slide Valve Actuator Troubleshooting Guide 2 of Meaning Flash PatternTable 6-2. Slide Valve Actuator LED Blink Codes* 1 of calibrate the actuator. If this error has occurred and the cause was er before the calibration procedure was completed. The actuatorwill not move while this error code is displayed. To clear the error not the loss of 24V power during calibration, possible causes areTable 6-3. Troubleshooting Guide - General Problems & Solutions 1 of Table 6-3. Troubleshooting Guide - General Problems & Solutions 2 of Table 6-3. Troubleshooting Guide - General Problems & Solutions 3 of 6 - 8 / Blank On Site Service Support Section 7 Warranty and PartsWarranty Claim Processing Warranty does not cover labor and extraneous expensesRemanufactured Gas Bare Shaft Compressor Process Request a “VSG Single Screw Compressor Rebuild Form”Torque Specifications ft-lbs Appendix A Torque SpecificationsTorque Specifications for 17-4 Stainless Steel Fasteners ft-lbs Appendix B Motor Compressor - General Storage Instructions PRODUCT ANALYSIS REPORT Appendix C Oil Analysis ReportEvaluation No Action RequiredAppendix D Recommended Header Piping OUTLET ON TOP Appendix E Recommended Remote Air Cooled Oil Cooler PipingINLET ON BOTTOM Blank