REFRIGERATION DIVISION
V SERIES
SCREW COMPRESSOR HANDLING MANUAL
Supersedes all previous version. This information is for reference use only and subject to change without notice
Revision 2 (June 05,2000) Page 3 of 61
1. General Description of MYCOM V-Series Screw Compressor
Introduction
The MYCOM V-Series Screw Compressor (referred to hereafter as the “V Series”) incorporates
numerous improvements. A variable Vi mechanism allows these compressors to be adjusted readily
for most operating conditions and a new tooth profile (0 profile) has been introduced to further
improve performance.
The basic construction of the V Series is the same as standard MYCOM compressors except for the
addition of the variable Vi mechanism.
The operator should have a thorough knowledge of the compressor and the system it is incorporated
into before attempting to disassemble the unit for inspection. Read this instruction manual carefully
before undertaking any work on the system.
This screw compressor is classified as a positive displacement rotary type. It compresses the
refrigerant gas continuously using the volume change between two rotating screw profile rotors.
Refrigerant gas is trapped in the clearance between the two mated rotors and pressure increased by
decreasing the volume. The refrigerant is then discharged as a high-pressure gas