Emerson SZO56, SZO44, SZV44, SZV32 manual Changing the Oil, Draining Oil

Page 27

Dual-Compressor Module

Maintenance

4.5.2Changing the Oil

These procedures describe how to drain oil from the system and to replace the oil after draining.

Figure 15 Adding or Draining Oil

LEFT SIDE VIEW

 

RIGHT SIDE VIEWS

Compressor

First Stage Oil Separator

Compressor

 

Schrader Valve

Schrader Valves

Schrader Valve

Oil Cooler

 

Draining Oil

Under normal operation, the Compressor and oil circuit remain under pressure when the Compressor is turned off. This pressure can be used to drain most of the oil. It is also possible to use the gas supply pressure to force oil out of the Compressor Module. In some cases it may necessary to pressurize the module with an inert gas to remove the oil.

1.Turn the knob on the backseating control valve fully counterclockwise.

2.Connect the backseating control valve to the Schrader valve near the bottom of the first-stage oil separator, shown in Figure 15.

3.Connect one end of the oil transfer hose to the backseating control valve.

4.Place the free end of the hose into a suitable container and turn the knob on the backseating control valve clockwise to open the Schrader valve and open the oil transfer hose ball valve.

5.Leave the valves open until the oil stops flowing and gas comes out of the hose; close the valves.

6.Relocate the hose to the Schrader valve on the inlet of one Compressor and repeat Steps 5 and 6. Repeat for the other Compressor on the Compressor Module.

7.Move the hose to the Schrader valve on the oil cooler and repeat Steps 5 and 6.

8.Close the valves, remove the service hose and replace the protective caps on all Schrader valves.

9.Note the volume of oil that has been drained from the Compressor Module; replace the oil as described in the next section, Replacing Oil on page 22.

21

2006SSD-75 R4 (10/10)

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Contents Copeland Scroll Compressor Module Page Table of Contents Appendix A Material Data Safety Sheet Figures Compressor Module Nomenclature Important Safety Information Safety Symbols Used in This Manual Safety Alert SymbolCompressor Module IntroductionOil coolers with fans Compressor Compressor PackageInlet gas scrubber for liquid removal Required Component-Inlet Gas Scrubber Installation GuidelinesGeneral Installation Guidelines Inlet and Discharge PressuresAmbient Temperature Range Barg SettingModule Weight Lbs. kg Compressor Module Dimensions, in. mm Installation Clearance and DimensionsCode Description Process and Instrumentation Diagrams P&IDsGeneral Considerations SwitchesSwitchStatus Electrical ControlsBrushless DC Fan Oil Cooler Fan ControlSZO44 Temperature ControlDrive Variable SpeedTypical Compressor Module power supply requirements Compressor Power data based on 480VAC Variable SpeedElectrical Requirements Control Circuit Terminations WiringOperation Pre-Startup ChecklistPost-Startup Checklist Initial Startup Compressor ModuleCheck for These Conditions Under Normal Operation Routine Maintenance MaintenanceMaintenance summary Maintenance Tools Maintenance ToolsOil Level Guidelines Maximum Speed Checking the Oil LevelOil Capacity and Type Oil Level Guidelines Minimum SpeedAdding and Removing Oil Topping Off the Oil LevelAdding Oil Draining Oil Changing the OilReplacing Oil Servicing the Scavenge Line Orifice Cleaning the Inlet ScreenChanging the Oil Filter Element Changing the Second-Stage Separator ElementMotor winding resistance Troubleshooting GuideTroubleshooting Motor Winding ResistancePlatform troubleshooting guidelines Platform Symptoms DiagnosisSpecifications Compressor Module Specifications Dual-Compressor Module Technical Support and Service Max Flow/HP as a function of discharge Configuration Suction130 140 110180 Flow rate110 120 150Components and Hazard Statement Appendix A - Material Data Safety SheetSupplier Emergency Number 989 Product Name and InformationHealth Hazard Data Spill or Leak ProceduresFire and Explosion Hazards Reactivity DataPage Page EmersonClimate.com
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