Emerson Vilter VSS - System Unit Identification

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VSS/VSR/VSM/VSH/VSSH Compressor • Installation, Operation and Service Manual • Emerson • 35391S
Section 1 • General Information
System Unit Identication
To keep denitions of units simple and consistent, Vilter
TM
has dened the following three:
• Bare Shaft Compressor
• Compressor Unit
• Package Unit
Bare Shaft Compressor
A bare shaft compressor is just the compressor with no coupling and motor nor foundation.
Compressor Unit
A compressor unit consists of the bare shaft compressor with the coupling, motor, oil separator, frame, micro-control-
ler system and oil system. A compressor unit typically a single screw compressor unit, is not mounted on a structural
steel base.
Package Unit
A package unit is a complete system mounted on a structural steel base with interconnecting piping.