Danfoss Turbocor TTS Series, Applications And Installation Manual

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Table of Contents
Table of Contents 3
Chapter 1.0 Introduction 11
1.1 Scope 11
1.2 Document Symbols 11
Chapter 2.0 Compressor Overview 19
2.1 TTS/TGS/TTH/TGH Compressor Nomenclature 19
2.2 Refrigerant Type 21
2.3 Environment 21
2.4 Configurations of the TTS/TGS/TTH/TGH Compressor Models 22
2.5 Compressor Module 23
Chapter 3.0 Functional Description 25
3.1 Main Fluid Path 25
3.2 Motor Cooling 26
3.3 Inlet Guide Vanes 29
3.4 Compressor Control Overview 30
3.4.1 Motor Drive System 30
3.4.2 Soft Start 31
3.4.3 Bearing Motor Compressor Controller 31
3.4.4 Compressor Control 31
3.4.5 Capacity Control 31
3.4.6 Expansion Valve Control 31
3.4.7 Motor/Bearing Control 31
3.4.8 Monitoring Functions 32
3.4.9 Abnormal Conditions 32
3.4.10 Bearing PWM Amplifier 32
3.4.11 Serial Driver 32
3.4.12 Backplane 32
3.4.13 High-Voltage DC-DC Converter 33
3.5 Magnetic Bearing System 33
M-AP-001-EN Rev. S-9/8/2021 Page 3 of 136