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VSS/VSM/VSH/VSSH • Installation, Operation and Maintenance Manual • Emerson • 35391SD
Table of Contents
Section Title Page Number
Field Wiring Instructions .............................................................................................................. 3-15
Testing Refrigeration System For Leaks .................................................................................................... 3-18
Ammonia Systems ....................................................................................................................... 3-18
Halocarbon Refrigerant Systems .................................................................................................. 3-18
CO2 Systems ................................................................................................................................ 3-19
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
Section 4 • Operation
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
Section 5 • Maintenance/Service
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
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