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Danfoss TT700 Series

Danfoss TT700 Series
108 pages
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Danfoss Turbocor® Twin-Turbine
Centrifugal Compressors
TT & TG Series Compressors
Applications and Installation Manual - Revision N
http://turbocor.danfoss.com
®

Table of Contents

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Danfoss TT700 Series Specifications

General IconGeneral
BrandDanfoss
ModelTT700 Series
CategoryCompressor
LanguageEnglish

Summary

Introduction

Scope

Defines the manual's purpose and target audience for Danfoss Turbocor compressors.

Definitions

Provides a glossary of acronyms and terms used in the manual.

Overview of the TTTG Compressor

Refrigerant Type

Specifies the refrigerants compatible with TT and TG series compressors.

Compressor Module

Provides an overview of the compressor's key modules: aerodynamics, motor, and electronics.

Functional Description

Main Fluid Path

Explains the flow of refrigerant through the compressor from intake to discharge.

Motor Cooling

Details how liquid refrigerant cools the compressor's electronic, mechanical, and electromechanical components.

Compressor Control Overview

Presents a block diagram of the compressor's control and monitoring system.

Compressor Control System Components

Details Motor Drive, Soft-Start, BMCC, Capacity Control, Expansion Valve, Motor/Bearing, Monitoring, Abnormal Conditions.

Backplane

Details the backplane's role in interconnecting modules and power conversion.

Magnetic Bearing System

Introduces the magnetic bearing system, its overview, and control system.

Control Interface Wiring

Control Wiring Connection Guidelines

Provides guidelines for proper control wiring techniques to the compressor I/O board.

General Specifications

Maximum Pressure

Explains how maximum operating pressure is regulated by alarm and trip limits.

Maximum Discharge Temperature

Specifies the maximum discharge temperature limits for the compressor.

Suction Pressure Limits

Details the suction pressure alarm and trip limits for various compressor models.

Electrical Specifications

Supply Voltage and Frequency

Specifies acceptable voltage and frequency ranges for compressor operation.

Compressor Current Limit and Operating Range Settings

Explains adjustable current settings and the FLA/LRA ranges.

AC Input LinePower Electronic Component Protection

Covers protection requirements for AC input lines and power electronics.

CE Compliance and EMIEMC Filtering

Addresses CE compliance and the importance of EMI/EMC filtering for performance.

Grounding (Earth) Connection Guidelines

Provides guidelines for proper grounding of metal parts and cables.

Compressor Performance

Performance Ratings

Explains how performance is determined using software and website tools.

Tolerance of Performance Ratings

Defines the tolerance bands for capacity, efficiency, and power ratings.

Operating Envelopes

Compressor Operating Envelopes

Illustrates the operating limits for various TT and TG compressor models.

Minimum Unloading Capacity

Control Logic Guidelines For Multiple Compressors

Guide Specifications

Refrigerant

Specifies refrigerants for TT (R134a) and TG (R1234ze(E)) compressors.

Compressor Bearings

Describes the magnetic bearing system for shaft levitation and friction elimination.

System Design Guidelines

Sample Refrigeration Circuits

Piping Considerations

Installation

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