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M-SV-001-EN Rev.E
This section provides a brief introduction to
the Service Manual including the Purpose,
Organization, Document Conventions used,
Safety Information, and the DTC Quality Policy.
Introduction
This Service Manual is intended to provide service
procedures specific to the Danfoss Turbocor TT
and TG Series compressors. It is not intended to
teach basic fundamental safety, refrigeration,
electrical or fitting skills. It is assumed persons
using this manual will be appropriately certified
and have detailed knowledge, experience, and
skills in respect to working with high-pressure
refrigerants and medium voltage electrical
components to 1 Kilovolt (KV) high-power
alternating current (AC) and direct current (DC).
Some potential safety situations may not be
foreseen or covered in the manual. Danfoss
Turbocor Compressors, Inc. (DTC) expects
personnel using this manual and working on
Danfoss Turbocor compressors to be familiar
with, and carry out, all safe work practices
necessary to ensure safety for personnel and
equipment.
The purpose of this manual is to provide:
•A general description of the compressor design.
•A functional description of the various
components of the compressor
•Information regarding procedures necessary
to detect the source of a problem within the
compressor
•The procedures for disassembling and
assembling of various components of the
compressor
•Fault and calibration interpretations
•System troubleshooting suggestions
•Maintenance tasks that should be followed
This manual gives only general procedures for
servicing and does not provide part numbers
of single products or single components. If
this information is required, please contact a
recognized Danfoss Turbocor OEM customer.
This manual is organized in the following
manner:
•Section 1: Introduction - this section describes
the purpose of the manual, its organization,
conventions used in the manual, and a safety
summary which describes the use of Danger,
Caution, and Notes symbols
•Section 2: Compressor Fundamentals - this
section identifies the parts of the compressor
and provides fundamental knowledge of the role
each component plays in the main fluid path,
motor-cooling system, and in the energy and
signal flow
•Section 3: Compressor Components -
this section describes in depth component
information, the steps necessary to obtain
measurements that verify a component is
functional and the steps necessary to replace a
compressor component
•Section 4: Troubleshooting - this section
describes troubleshooting using signals from the
compressor to determine the specific source of
faults at the system and compressor level
•Section 5: Maintenance - this section contains
a table containing a list of tasks that should be
performed on a regular basis to maintain optimal
performance of the system
•Appendix A: Acronyms/Terms - this section
provides definitions of terms and acronyms used
in this manual
•Appendix B: Compressor Troubleshooting
Flowcharts - this section contains flowcharts to
assist you with compressor troubleshooting
•Appendix C: Compressor Test Sheet - this
section contains a sheet with test points,
expected values, and the section in the manual
associated with a particular test
1.1 Purpose
1.2 Organization
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