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Danfoss TTH375

Danfoss TTH375
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Danfoss Turbocor® Twin-Turbine
Centrifugal Compressors
TTS/TGS/TTH/TGH Compressors
Applications and Installation Manual - Revision Q
http://turbocor.danfoss.com
®

Table of Contents

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Danfoss TTH375 Specifications

General IconGeneral
Operating temperature range0°C to +40°C
Electrical ConnectionScrew terminals
Protection ClassIP30
Housing MaterialPlastic
TypeThermostat
ApplicationHeating

Summary

Chapter 3.0 Functional Description

3.4 Compressor Control Overview

Provides a high-level overview of the compressor's control system and its major components.

3.5 Magnetic Bearing System

Explains the magnetic bearing system for shaft support and its operational principles.

Chapter 4.0 Control Interface Wiring

4.1 Control Wiring Connection Guidelines

Offers guidelines for proper control wiring techniques and grounding.

Chapter 6.0 Electrical Specifications

6.1 Supply Voltage and Frequency

Specifies the acceptable voltage and frequency ranges for compressor operation.

6.2 Compressor Current Limit and Operating Range Settings

Explains configuration of current limits (FLA/LRA) and operating settings.

6.5 AC Input LinePower Electronic Component Protection

Addresses the need for fast-acting fuses for protecting power electronics.

6.9 Line Reactor

Mandates the installation of a 5% impedance line reactor for each compressor.

6.11 Grounding (Earth) Connection Guidelines

Provides guidelines for proper grounding of electrical components and cables.

Chapter 7.0 Compressor Performance

7.1 Performance Ratings

Explains how compressor performance is determined using specific software.

Chapter 8.0 Operating Envelopes

Chapter 9.0 Minimum Unloading Capacity

Chapter 10.0 Control Logic Guidelines for Multiple Compressors

Chapter 12.0 Guide Specifications

12.3 Compressor Bearings

Details the magnetic bearing system used for shaft support and operation.

12.4 Capacity Control

Explains the variable frequency drive and IGV usage for capacity modulation.

Chapter 13.0 System Design Guidelines

13.1 General Requirements

Outlines general requirements for system design and component selection.

Chapter 14.0 Sample Refrigeration Circuits

Chapter 16.0 Physical Data

16.2 Torque Specifications

Lists recommended torque values for various compressor components and fasteners.

Chapter 17.0 Piping Considerations

Chapter 20.0 Installation

20.1 Unpacking and Inspection

Details procedures for unpacking, inspecting for damage, and reporting issues.

20.5 Piping Connections

Guides on making suction, discharge, economizer, and motor-cooling connections.

20.7 Power Wiring

Details the procedures for connecting the power wiring to the compressor terminals.

Appendix A: Line Reactor Installation Instructions

Appendix B: EMIEMC Filter Installation Instructions

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