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Danfoss Manuals
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TG310 Series
Installation manual
Danfoss TG310 Series Installation Manual
Twin-turbine centrifugal compressors
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Contents
Table of Contents
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Table of Contents
Table of Contents
1 Introduction
Scope
Organization of this Manual
Table 1-1 - Application Manual Applicability
Document Symbols
Definitions
Table 1-2 - Definitions
2 Overview of the TT/TG Compressor
TT/TG Compressor Nomenclature
Refrigerant Type
TG Series
Table 2-1 - Refrigerant Used with Turbocor Compressors
Figure 2-1 - Compressor Nomenclature
Environment
Configurations of the TT/TG Compressor Models
Figure 2-2 - Major Components
Compressor Module
3 Functional Description
Main Fluid Path
Figure 3-1 - Compressor Fluid Path TG230 / TT300
Motor Cooling
Figure 3-2 - Compressor Fluid Path (TG310, TT350, TG390, TT400, TG520, and TT700)
Figure 3-3 - Compressor Cooling Circuit (TG230 / TT300)
Figure 3-4 - Compressor Cooling Circuit (TT300 Split-Cooling, TG310, TT350, TG390, TT400, and TG520)
Inlet Guide Vanes
Compressor Control Overview
Figure 3-5 - Compressor Control System Functional Block Diagram
Bearing Motor Compressor Controller
Capacity Control
Compressor Control
Motor Drive System
Soft-Start Board
Abnormal Conditions
Expansion Valve Control
Monitoring Functions
Motor/Bearing Control
Backplane
Bearing PWM Amplifier
Serial Driver
Table 3-1 - Backplane Leds
High-Voltage DC-DC Converter
Magnetic Bearing System
Overview
Bearing Control System
Figure 3-6 - Magnetic Bearing Configuration
Figure 3-7 - Magnetic Bearing Control System
4 Control Interface Wiring
Figure 4-1 - Typical Control Wiring
Figure 4-2 - Modbus Grounding Diagram
Control Wiring Connection Guidelines
Table 4-1 - Control Wiring Details
Figure 4-3 - I/O Wiring Specifications
Interface Cable
Compressor I/O Board Mounting Details
Compressor I/O Board - Mounting Instructions
Figure 4-4 - Compressor I/O Board
Figure 4-5 - Compressor I/O Board Installation
5 General Specifications
Construction
Maximum Pressure
Table 5-1 - Discharge Pressure Alarm and Trip Settings
Maximum Discharge Temperature
Table 5-2 - Discharge Temperature Trip Settings
Table 5-3 - Maximum Pressure Ratio Limits
Table 5-4 - Maximum Allowable Pressure [PS]
Suction Pressure Limits
Codes and Standards Compliance
Table 5-5 - Suction Pressure Alarm and Trip Settings
6 Electrical Specifications
Supply Voltage and Frequency
Compressor Current Limit and Operating Range Settings
Table 6-1 - Acceptable AC Voltage Range
Table 6-2 - Acceptable Frequency Range
Disconnects
Table 6-3 - FLA and LRA Value Range
Motor Insulation Class
AC Input Line/Power Electronic Component Protection
Power Line Contactor
CE Compliance and EMI/EMC Filtering
Surge Protection
Harmonic Filtering (IEEE 519)
Grounding (Earth) Connection Guidelines
Equipment Panel
Figure 6-1 - Typical Ground Connections
Mains Input Cable Specification
Idle Power Consumption
Table 6-4 - Main Cable Connector Plate Hole Sizes
7 Compressor Performance
Performance Ratings
Tolerance of Performance Ratings
8 Operating Envelopes
Figure 8-1 - Operating Envelope, TT300 and TG230
Figure 8-2 - Operating Envelope, TT300 and TG230 (Medium Temperature Compressor)
Figure 8-3 - Operating Envelope, TT350 and TG310
Figure 8-4 - Operating Envelope, TT400 and TG390
Figure 8-5 - Operating Envelope, TT700 and TG520
9 Minimum Unloading Capacity
10 Control Logic Guidelines for Multiple Compressors
11 Product Certification
12 Guide Specifications
General
Refrigerant
Compressor Bearings
Capacity Control
Compressor Motor
Compressor Electronics
Ancillary Devices
13 System Design Guidelines
General Requirements
Economizer Option
Motor/Electronics Cooling Requirements
Table 13-1 - Recommended Minimum Copper Tube Size
Electrical Requirements
Application-Specific Requirements
Medium Evaporating Temperature Application (TT300)
Low Lift Application
Table 13-2 - Low Lift Pump Sizing
Limited Capacity at Low Pressure Ratios
Figure 13-1 - Centrifugal Performance Dynamics
14 Sample Refrigeration Circuits
Figure 14-1 - Typical Refrigeration Piping Schematic
Figure 14-2 - Typical Refrigeration Piping Schematic with Staging and Load Balancing Valve
Figure 14-3 - Typical Refrigeration Piping Schematic with Flash Tank Economizer
Figure 14-4 - Typical Refrigeration Piping Schematic with Sub-Cooler Circuit Economizer
Figure 14-5 - Typical Refrigeration Piping Schematic Using Motor-Cooling Pressure Regulating Valve
Figure 14-6 - Typical Refrigeration Piping Schematic with Multiple DX Evaporators
Figure 14-7 - Typical Refrigeration Piping Schematic Using Multiple Compressors on a Common Circuit with a Flooded Evaporator
15 Sound and Power Specifications
TT300 and TT400 Sound Power Measurements
Results
Table 15-1 - Sound Power Measurements for TT300
Table 15-2 - Sound Pressure Calculation for TT300
Table 15-3 - Sound Power at Third Octave Band, TT300 Compressor
Table 15-4 - Sound Power Measurements
Table 15-5 - Sound Pressure Calculation
Table 15-6 - Sound Power at Third Octave Band of TT400 Compressor
16 Physical Data
Clearance
Table 16-1 - Physical Dimensions
Figure 16-1 - Suction/Front View All Models
Figure 16-2 - Service Side View All Models
Figure 16-3 - Discharge Side View
Center of Gravity
Figure 16-4A - Center of Gravity
Table 16-2 - Center of Gravity X-Y Coordinates
Figure 16-4B - Center of Gravity
Figure 16-5 - Discharge Port Details (TT300 and TG230)
Figure 16-6 - Discharge Port Details (TT350 and TG310)
Figure 16-7 - Discharge Port Detail (TT400 and TG390)
Figure 16-8 - Discharge Port Detail (TT700 and TG520)
Figure 16-9 - Suction Port (All Models)
Figure 16-10 - Suction Port Detail DD (All Models)
Figure 16-11 - Suction Port Detail DD (TT700 and TG520)
Figure 16-12 - TT300 Flange Footprint Details
Figure 16-13 - TT350, TG310, TG390, and TT400 Flange Footprint Details
Table 16-3 - Screw Hole Specifications
Figure 16-14 - TT700 and TG520 Flange Footprint Details
Torque Specifications
Table 16-4 - Torque Specifications
Figure 16-15 - Motor Cooling Fitting
17 Piping Considerations
18 Environmental Considerations
Humidity
Vibration
19 Shipping Considerations
Vibration
Figure 19-1 - Anti-Vibration Bracket
20 Installation
Unpacking and Inspection
Rigging Requirements
Unit Placement
Figure 20-1 - Rigging Set-Up
Mounting Base
Figure 20-2 - Mounting Base (TT and TG Series)
Figure 20-3 - Incorrect Compressor Mounting Pad Installation
Piping Connections
Figure 20-4 - Correct Compressor Mounting Pad Installation
Control Wiring
Control Wiring Connections
Figure 20-5 - Motor-Cooling Connection and Access Port
Figure 20-6 - Compressor I/O Board Connections
Circuit Grounding
Figure 20-7 - Interlock and Motor Speed Connections
Voltage-Free Contacts
Figure 20-8 - Interlock Circuit Tests
Power Wiring
Figure 20-9 - Typical Electrical Connections
Figure 20-10 - Ground Post Nuts
Figure 20-11 - Compressor AC Input Terminals
Appendix A: Power Line Accessories Installation
Line Reactor Installation Instructions
AC Line Cable Connection (from External Disconnect)
AC Line Cable Connection (to Compressor Terminal)
Figure A-1 - Line Reactor Connections
Appendix B: Power Line Accessories Installation
EMI/EMC Filter Installation Instructions
Line Side Connection
Load Side Connection
Harmonic Filter
Figure B-1 - Interconnection Layout
Figure B-2 - Grounding Diagram
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Applications and Installation Manual - Revision N
Danfoss Turbocor® Twin-Turbine
Centrifugal Compressors
TT & TG Series Compressors
®
http://turbocor.danfoss.com
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