Gardner Denver AUTO SENTRY EAU99G - Oil Level Gauge and Minimum Pressure Valve; Inlet Valve Operation

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13-10-614 Page 24

WARNING

When the relief valve opens, a stream of high velocity air is released, resulting

in a high noise level and possible discharge of accumulated dirt or other debris.

Always wear eye and ear protection and stand clear of the discharge port when

testing the relief valve to prevent injury.

CAUTION

Never paint, lubricate or alter a relief valve. Do not plug vent or restrict

discharge.

WARNING

Operation of the unit with improper relief valve setting can result in severe

personal injury or machine damage. Ensure properly set valves are installed

and maintained.

Figure 4-1 – SCHEMATIC TUBING DIAGRAM

205EAU797-A

(Ref. Drawing)

Main Page

Instructions for Ordering Repair Parts2
Foreword3
Table of Contents4
Section 1, General Information8
Figure 1-1 - Compression Cycle8
Figure 1-2 - Starter Box10
Figure 1-3 - Package - Controller & Starters10
Figure 1-4 - Package - Drive Motor & Air Filter11
Figure 1-5 - Package - Oil Filter, Oil Level Gauge, Mixing Valve12
Figure 1-6 - Package - Air/Oil Flow Diagram12
Section 2, Installation16
Figure 2-1 - Typical Compressor Room17
Figure 2-2 - Air Flow Chart17
Figure 2-3 - Cold Weather Installation19
Figure 2-4 - Inlet Line Lengths20
Figure 2-5 - Heat Exchanger (Oil Cooler) Approximate Water Flow22
Figure 2-6 - Aftercooler Approximate Water Flow22
Figure 2-7 - Series Piping24
Figure 2-8 - Parallel Piping24
Section 3, Starting & Operating Procedures27
Section 4, Controls & Instrumentation30
Figure 4-1 - Schematic Tubing Diagram31
Figure 4-2 - Minimum Discharge Pressure/Check Valve32
Figure 4-3 - Inlet Valve33
Figure 4-4 - Shuttle Valve33
Figure 4-5 - Blowdown Valve34
Figure 4-6 - Turn Valve Actuator (Sectioned)35
Figure 4-7 - Control Schematic - Compressor at Full Load37
Figure 4-8 - Control Schematic - Compressor Fully Unloaded - Low Demand Mode Switch off38
Figure 4-9 - Control Schematic - Compressor Fully Unloaded - Low Demand Mode Switch on39
Figure 4-10 - Wiring Diagram - (Wye Delta, ES+ Controller, Air-Cooled)40
Figure 4-11 - Wiring Diagram - Wye Delta ES+ Controller - Water Cooled42
Section 5, Lubrication - Oil Cooler, Oil Filter & Separator44
Figure 5-1 - Dew Point Chart °F46
Figure 5-2 - Dew Point Chart °C46
Figure 5-3 - Flow Diagram47
Figure 5-4 - Oil Flow Diagram - Remote Overhead Mounted48
Figure 5-5 - Cooler Drain Detail49
Figure 5-6 - Oil Level Gauge53
Figure 5-7 - Oil Change Interval53
Figure 5-8 - Approximate Oil System Capacities55
Figure 5-9 - Thermostatic Mixing Valve Element57
Figure 5-10 - Water Control Valve59
Figure 5-11 - Oil Separator60
Section 6, Air Filter64
Figure 6-1 - Heavy Duty Air Filter (Standard)64
Section 7, Coupling66
Figure 7-1 - Installation of Coupling Cushions66
Section 8, Maintenance Schedule69
Section 9, Troubleshooting71

Gardner Denver AUTO SENTRY EAU99G - Oil Level Gauge and Minimum Pressure Valve; Inlet Valve Operation

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