Gardner Denver VST55A

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13-17-601 Page 72

14-2

Yearly Checks:

· Heat Exchangers (air and water-cooled) – Check cooling performance of air and oil cores – see

Section 6, page 49 of this manual for details on typical performance expectations as well as

recommended cleaning procedures.

· Pressure Relief Valve – Check operation of device – see Section 11, page 67 for test procedure.

· Compressor/Motor shaft couplings – Check coupling element for signs of wear and tear – see

Section 8, page 57 for detailed instruction on coupling inspection procedures.

Main Page

Maintain Compressor Reliability and Performance with Genuine Gardner Denver Compressor Parts and Support Services2
Instructions for Ordering Repair Parts2
Warning - Prohibition - Mandatory Label Information3
Safety Precautions5
Table of Contents6
Index7
List of Illustrations8
Section 1, General Information9
Figure 1-1 - Compression Cycle9
Figure 1-2 - Package Illustration (Air-Cooled) - External Details11
Figure 1-3 - Package Illustration (Air-Cooled) - Internal Details12
Figure 1-4 - Package Illustration (Water-Cooled) - External Details13
Figure 1-5 - Package Illustration (Water-Cooled) - Internal Details14
Section 2, Installation15
Figure 2-1 - Typical Compressor Room16
Figure 2-2 - Inlet Line Lengths18
Figure 2-3 - Package Maximum Current Consumption Summary20
Figure 2-4 - Line Reactor Sizing Recommendations21
Section 3, Starting & Operating Procedures22
Section 4, Controls & Instrumentation29
Figure 4-1 - Electrical Enclosure Hardware30
Figure 4-2 - Piping and Instrumentation Illustration33
Figure 4-3 - Wiring Diagram - (Air-Cooled) Two-Stage VS Control34
Figure 4-4 - Wiring Diagram - (Air-Cooled) Two-Stage VS Control35
Figure 4-5 - Wiring Diagram - (Air-Cooled) Two-Stage VS Control36
Figure 4-6 - Wiring Diagram - (Air-Cooled) Two-Stage VS Control37
Figure 4-7 - Wiring Diagram - (Water-Cooled) Two-Stage VS Control38
Figure 4-8 - Wiring Diagram - (Water-Cooled) Two-Stage VS Control39
Figure 4-9 - Wiring Diagram - (Water-Cooled) Two-Stage VS Control40
Figure 4-10 - Wiring Diagram - (Water-Cooled) Two-Stage VS Control41
Section 5, Compressor Lubrication - Separation, Filtration and Controls42
Figure 5-1 - Thermostatic Mixing Valve Element47
Figure 5-2 - Pressure Dew Point of Compressed Air48
Figure 5-3 - Oil Coalescing Element49
Section 6 - Heat Exchangers (Oil, Air), Axial Cooling Fans51
Figure 6-1 - Air Flow Chart52
Figure 6-2 - Cooler Housing Side Covers53
Figure 6-3 - Water-Cooled Heat Exchanger Coolant Requirements54
Figure 6-4 - Water Control Valve55
Section 7, Air Filter56
Figure 7-1 - Air Filter (Standard)56
Section 8, Shaft Coupling58
Figure 8-1 - Coupling Components58
Figure 8-2 - Coupling Element59
Figure 8-3 - Motor Removal Hardware60
Figure 8-4 - Coupling Installation Tool Kit63
Figure 8-5 - Coupling Removal Tool Kit63
Section 9, Minimum Pressure/Check Valve64
Figure 9-1 - Minimum Discharge Pressure/Check Valve65
Section 10, Inlet Control Valve66
Figure 10-1 - Inlet Control Valve (Body)66
Section 11, Pressure Relief Valve68
Figure 11-1 - Pressure Relief Valve68
Section 12, Ventilation Fans, Filters (Electrical Enclosure)70
Section 13, Motor Lubrication71
Section 14, Maintenance Schedule72
Section 15, Troubleshooting74

Gardner Denver VST55A - Page 73

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