Evacuating The System ............................................................................................................................ 3-19

Notice on Using Non-Vilter Oils ................................................................................................................ 3-20

Unit Oil Charging and Priming .................................................................................................................. 3-20

Unit Initial Oil Charging ................................................................................................................ 3-21

Priming Oil Lines and Compressor ................................................................................................ 3-21

System Refrigerant Charging ................................................................................................................... 3-22

Low Side Equipment ..................................................................................................................... 3-22

Compressors ................................................................................................................................ 3-22

Condensers .................................................................................................................................. 3-22

Controls ....................................................................................................................................... 3-22

Initial High Side Charging ............................................................................................................. 3-22

Notice on Using Non-Vilter Oils .................................................................................................................. 4-1

Operation .................................................................................................................................................. 4-1

Oil Inspection ............................................................................................................................................ 4-1

Dual Oil Filters............................................................................................................................................ 4-2

Control System ......................................................................................................................................... 4-2

Calibration ..................................................................................................................................... 4-2

Starting, Stopping and Restarting The Compressor ........................................................................ 4-2

Emergency Shutdown .................................................................................................................... 4-3

Slide Valve Actuator Operation .................................................................................................................. 4-3

Calibrate Slide Valve Actuators (For Units Using Vission20/20™) ................................................................ 4-4

Calibrate Slide Valve Actuators (For Units Using Compact Logix PLC) ........................................................ 4-10

Compressor Control with Vission20/20™ Micro-Controller (No Slide Operation) ...................................... 4-15

Coalescing Oil Return Line Setup .............................................................................................................. 4-16

Suction Equalizing Line Setup - For VSS/VSM Compressors ....................................................................... 4-17

Dual Oil Filter Setup For Oil Filters With Filter Head Assemblies ................................................................ 4-18

Stop/Check Valve Operation .................................................................................................................... 4-19

Maintenance and Service Schedule - For VSS/VSM Unit Only ...................................................................... 5-1

Maintenance and Service Schedule - For VSH/VSSH Unit Only..................................................................... 5-2

Preventive Maintenance, Checks and Services ............................................................................................ 5-4

Daily...... ......................................................................................................................................... 5-4

Weekly ........................................................................................................................................... 5-4

Monthly ......................................................................................................................................... 5-4

Trimonthly ..................................................................................................................................... 5-4

Annually ......................................................................................................................................... 5-4

Compressor Unit Isolation For Maintenance/Service (Compressors With Slide Valves) ................................ 5-5

Recommendations When Servicing (Compressors Without Slide Valves) ................................................... 5-6

Preparation of Unit For Servicing ................................................................................................................ 5-6

Compressor Unit Leak Check After Servicing .............................................................................................. 5-7

Oil System Components ............................................................................................................................. 5-7

Oil Sampling................................................................................................................................... 5-7

Recommendations ............................................................................................................. 5-7

Installation of The Oil Sampler Valve ................................................................................... 5-8

TOC − 2

Table of Contents

Section 4 • Operation

Section 5 • Maintenance/Service

VSS/VSM/VSH/VSSH • Installation, Operation and Maintenance Manual • Emerson • 35391SD

Page Number

Table of Contents