Name: Danfoss Turbocor Twin-Turbine TTS Series
Brand: Danfoss
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53 of 114M-AP-001-EN Rev. Q

Chapter 9.0 Minimum Unloading Capacity

Due to the nature of centrifugal compression, the minimum stable load is dependent on the pressure

ratio imposed on the compressor by the chiller system. All compressor performance, including

unloading, should be determined through use of the relevant compressor selection/rating programs.

Default Chapter3
- Table of Contents3
Chapter 1.0 Introduction11
- Scope11
- Organization of this Manual11
- Document Symbols11
- Table 1-1 Application Manual Applicability11
- Table 1-2 Acronyms and Terms13
Chapter 2.0 Overview of the TTS/TGS/TTH/TGH Compressor17
- TTS/TGS/TTH/TGH Compressor Nomenclature17
- Figure 2-1 Old Type Code to New Type Code Rev. D17
- Refrigerant Type18
- Table 2-1 Refrigerant Used with Turbocor Compressors18
- Figure 2-2 Compressor Nomenclature18
- Environment19
- Mains Plate Sealing19
- Configurations of the TTS/TGS/TTH/TGH Compressor Models20
- Compressor Module20
- Figure 2-3 Major Components20
Chapter 3.0 Functional Description21
- Main Fluid Path21
- Figure 3-1 Compressor Fluid Path TGS230/TTS30021
- Motor Cooling22
- Figure 3-2 Compressor Fluid Path (TGS310, TTS350, TGS390, TGS490, TTS400, TGS520, and TTS700)22
- Figure 3-3 Compressor Cooling Circuit (TGS230 / TTS300)23
- Figure 3-4 Compressor Cooling Circuit (TTS300 Split-Cooling, TGS310, TTS350, TGS390, TGS490, TTS400, TT700, and TGS520)23
- Inlet Guide Vanes24
- Compressor Control Overview24
- Figure 3-5 Compressor Cooling Circuit (TGH285 / TTH375)24
- Figure 3-6 Compressor Control System Functional Block Diagram25
- Magnetic Bearing System27
- Table 3-1 Backplane Leds27
- Figure 3-7 Magnetic Bearing Configuration27
- Figure 3-8 Magnetic Bearing Control System28
Chapter 4.0 Control Interface Wiring29
- Figure 4-1 Typical Control Wiring29
Chapter 5.0 General Specifications35
- Construction35
- Maximum Pressure35
- Table 5-1 Discharge Pressure Alarm and Trip Settings35
- Maximum Discharge Temperature36
- Table 5-2 Discharge Temperature Trip Settings36
- Table 5-3 Maximum Pressure Ratio Limits36
- Table 5-4 Maximum Allowable Pressure [PS]36
- Suction Pressure Limits37
- Standards Compliance37
- Table 5-5 Suction Pressure Alarm and Trip Settings37
Chapter 6.0 Electrical Specifications39
- Supply Voltage and Frequency39
- Compressor Current Limit and Operating Range Settings39
- Table 6-1 Acceptable AC Voltage Range39
- Table 6-2 Acceptable Frequency Range39
- Disconnects40
- Table 6-3 FLA and LRA Value Range40
- Motor Insulation Class41
- AC Input Line/Power Electronic Component Protection41
- Power Line Contactor41
- CE Compliance and EMI/EMC Filtering41
- Surge Protection42
- Line Reactor42
- Harmonic Current Filtering (IEEE 519)42
- Grounding (Earth) Connection Guidelines42
- Equipment Panel43
- Mains Input Cable Specification43
- Figure 6-1 Typical Ground Connections43
- Idle Power Consumption44
- Table 6-4 Main Cable Connector Plate Hole Sizes44
Chapter 7.0 Compressor Performance45
- Performance Ratings45
- Tolerance of Performance Ratings45
Chapter 8.0 Operating Envelopes47
- Figure 8-1 Operating Envelope, TTS300 and TGS23047
- Figure 8-2 Operating Envelope, TTS300 and TGS230 (Medium Temperature Compressor)48
- Figure 8-3 Operating Envelope, TTS350, TGS31049
- And TGS49049
- Figure 8-4 Operating Envelope, TTS400 and TGS39050
- Figure 8-5 Operating Envelope, TTS700 and TGS52051
- Figure 8-6 Operating Envelope, TTH375/TGH28552
Chapter 9.0 Minimum Unloading Capacity53
Chapter 10.0 Control Logic Guidelines for Multiple Compressors55
Chapter 11.0 Product Certification57
Chapter 12.0 Guide Specifications59
- General59
- Refrigerant59
- Compressor Bearings59
- Capacity Control59
- Compressor Motor59
- Compressor Electronics60
Chapter 13.0 System Design Guidelines61
- General Requirements61
- Table 13-1 Recommended Minimum Copper Tube Size61
- Economizer Option62
- Motor/Electronics Cooling Requirements62
- Figure 13-1 Discharge Cone to Illustrate the Piping Requirements62
- Electrical Requirements63
- Application-Specific Requirements63
- Table 13-2 Low Lift Pump Sizing64
- Figure 13-2 Centrifugal Performance Dynamics64
Chapter 14.0 Sample Refrigeration Circuits65
- Figure 14-1 Typical Refrigeration Piping Schematic65
- Figure 14-2 Typical Refrigeration Piping Schematic with Staging and Load Balancing Valve66
- Figure 14-3 Typical Refrigeration Piping Schematic with Flash Tank Economizer67
- Figure 14-4 Typical Refrigeration Piping Schematic with Closed Type Economizer68
- Figure 14-5 Typical Refrigeration Piping Schematic Using Motor-Cooling Pressure Regulating Valve (TTS300/TGS230 Medium Temperature Compressors Only)69
- Figure 14-6 Typical Refrigeration Piping Schematic Using Motor-Cooling Pressure Regulating Valve (TTH/TGH Medium Temperature Compressors Only)70
- Figure 14-7 Typical Refrigeration Piping Schematic with Multiple DX Evaporators71
- Figure 14-8 Multiple Compressors Single Circuit Piping Schematic72
- Figure 14-9 TTH/TGH Piping Schematic with Required Economizer (Closed Type) and Vapor Line Solenoid73
- Figure 14-10 TTH/TGH Piping Schematic with Required Economizer (Flash Tank) and Vapor Line Solenoid74
Chapter 15.0 Sound and Power Specifications75
- TTS300 and TTS400 Sound Power Measurements75
- Table 15-1 Sound Power Measurements for TTS30075
- Table 15-2 Sound Pressure Calculation for TTS30075
- Table 15-3 Sound Power at Third Octave Band, TTS300 Compressor76
- Table 15-4 Sound Power Measurements, TTS400 Compressor76
- Table 15-5 Sound Pressure Calculation, TTS400 Compressor76
- Table 15-6 Sound Power at Third Octave Band of TTS400 Compressor77
Chapter 16.0 Physical Data79
- Clearance79
- Table 16-1 Physical Dimensions79
- Figure 16-1 Suction View All Models (Excluding TTH/TGH Compressors)79
- Figure 16-2 Service Side View (Excluding TTH/TGH Compressors)80
- Figure 16-3 Discharge Side View (Excluding TTH/TGH Compressors)80
- Figure 16-4 TTH/TGH Suction Side View81
- Figure 16-5 TTH/TGH Service Side View81
- Figure 16-6 TTH/TGH Second Stage Housing View82
- Figure 16-7 TTH/TGH Discharge Side View82
- Figure 16-8 Center of Gravity Capacitor Side View (Excluding TTH/TGH Compressors)83
- Figure 16-9 Center of Gravity Top View (Excluding TTH/TGH Compressors)83
- Figure 16-10 TTH/TGH Center of Gravity Capacitor Side View84
- Figure 16-11 TTH/TGH Center of Gravity Top View84
- Table 16-2 Center of Gravity X-Y Coordinates85
- Figure 16-12 Discharge Port Detail (TTS300 and TGS230)85
- Figure 16-13 Discharge Port Detail (TTS350 and TGS310)86
- Figure 16-14 Discharge Port Detail (TTS400 and TGS390)86
- Figure 16-15 Discharge Port Detail (TTS700, TGS490, and TGS520)87
- Figure 16-16 Discharge Port Detail (TTH375 and TGH285)87
- Figure 16-17 Suction Port (All Models)88
- Figure 16-18 Suction Port Detail DD (All Models Excluding TTS700 and TGS520)89
- Figure 16-19 Suction Port Detail DD (TTS700, TGS490, and TGS520)89
- Figure 16-20 TTS300 and TGS230 Flange Footprint Details90
- Figure 16-21 TTS350,TGS310,TTS400,TGS390, TTH375, and TGH285 Flange Footprint Details90
- Table 16-3 Screw Hole Specifications91
- Figure 16-22 TTS700, TGS490, and TGS520 Flange Footprint Details91
- Torque Specifications92
- Table 16-4 Torque Specifications92
- Figure 16-23 Motor Cooling Fitting92
Chapter 17.0 Piping Considerations93
Chapter 18.0 Environmental Considerations95
- Humidity95
- Vibration95
Chapter 19.0 Shipping Considerations97
- Vibration97
- Figure 19-1 Anti-Vibration Bracket97
Chapter 20.0 Installation99
- Unpacking and Inspection99
- Rigging Requirements99
- Unit Placement99
- Figure 20-1 Rigging Set-Up99
- Mounting Base100
- Figure 20-2 Mounting Base (TTS/TGS/TTH/TGH Series)100
- Figure 20-3 Incorrect Compressor Mounting Pad Installation100
- Piping Connections101
- Table 16-5 Mounting Base Screw Hole Specifications101
- Figure 20-4 Correct Compressor Mounting Pad Installation101
- Control Wiring102
- Figure 20-5 Motor-Cooling Connection and Access Port102
- Figure 20-6 Compressor I/O Board Connections103
- Figure 20-7 Interlock and Motor Speed Connections104
- Power Wiring105
- Figure 20-8 Interlock Circuit Tests105
- Figure 20-9 Typical Electrical Connections106
- Figure 20-10 Ground Post Nuts106
- Figure 20-11 Compressor AC Input Terminals107
- Figure A-1 Line Reactor Connections109
- Figure B-1 Interconnection Layout111
- Figure B-2 Grounding Diagram112

Danfoss Turbocor Twin-Turbine TTS Series User Manual

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Danfoss Turbocor Twin-Turbine TTS Series Specifications

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Brand	Danfoss
Model	Turbocor Twin-Turbine TTS Series
Category	Air Compressor
Language	English