Name: Danfoss Turbocor TT350
Brand: Danfoss
Rating: 5 (1 reviews)

Table of Contents5

Compressor Fundamentals22

Compressor Components29

Component Identification29
Table 4 - Compressor Component Identification (Covers On)29
Figure 19 - Compressor Components Identification (Covers On)29
Table 5 - Compressor Component Identification (Covers Off) (TT300/TG230)30
Figure 20 - Compressor Component Identification (Covers Off) (TT300/TG230)30
Table 6 - Compressor Sensors, Cables, and Indicators (TT300/TG230)31
Figure 21 - Compressor Sensors, Cables and Indicators (TT300/TG230)31
Table 7 - Compressor Component Identification (Covers off ) (TT350/TT400/TT500/TT700/TG310/TT390/TT520)32
Figure 22 - Compressor Component Identification (Covers off ) (TT350/TT400/TT500/TT700/TG310/TG390/TG520)32
Table 8 - Compressor Sensors, Cables, and Indicators (TT350/TT400/TT500/TT700/TG310/TG390/TG520)33
Figure 23 - Compressor Sensors, Cables, and Indicators (TT350/TT400/TT500/TT700/TG310/TG390/TG520)33
Compressor - Removal and Installation34
- Refrigerant Containment34
- Compressor - Removal34
- Compressor - Installation34
- Figure 24 - Major Revision "E" Compressor Fittings36
3-Phase Main Voltage Input Terminal Block37
- Function37
- Connections37
- Figure 25 - Main AC Input Terminal TT300/TG23037
(Left) TT350/TT400/TT500/TT700/TG310/TG390/TG520 (Right)37
- Verification38
- Figure 26 - Measuring the AC Input Voltage on the AC Input Terminals38
- Figure 27 - Measuring 3-Phase AC Input (TT300/TG230 Only)38
- Removal and Installation39
- Table 9 - Expected AC Voltage Range39
- Figure 28 - Terminal Block Bus Bars (TT350/TT400/TT500/TT700/TG310/TG390/TG520)39
- Figure 29 - Terminal Block Bus Bars (TT350/TT400/TT500/TT700/TG310/TG390/TG520)39
- Figure 30 - AC Input to Scrs (TT300/TG230)40
- Figure 31 - Terminal Block Spacers40
- Soft Start Board41
- Silicon-Controlled Rectifier44
- DC Bus48
Inverter52
- Function52
- Connections52
- Figure 43 - Inverter Connections52
- Verification53
- Figure 44 - Inverter Connections (TT300/TG230)53
- Removal and Installation54
- Figure 45 - Driver Board Screw Removal54
- Figure 46 - Driver Board Removal54
- Figure 47 - Long Spring Pin Locations55
- Figure 48 - Spring Pin Identification55
- Figure 49 - Spring Pin Removal56
- Figure 50 - Seated Spring Pins56
- Figure 51 - Driver Board Placement56
- Figure 52 - Initial Tightening Pass Sequence57
- Figure 53 - Final Torque57
- Figure 54 - Removing the Inverter (TT300/TG230 Shown)58
Motor59
- Function59
- Motor Protection59
- Connections59
- Figure 55 - Connection to Stator59
- Verification60
- Figure 56 - Stator Thermistor R/T Curve 161
High-Voltage DC/DC Converter62
- Function62
- Connections62
- Figure 57 - DC/DC Converter Connections62
- Verification63
- Figure 58 - J3 24VDC Output Connector63
- Removal and Installation64
Backplane64
- Function64
- Figure 59 - HV DC/DC Converter Removal64
- Backplane Connections and Test Points65
- Figure 60 - Backplane Connections and Test Points65
- Figure 61 - LED Locations65
- Removal and Installation66
- Table 12 - Backplane Test Point Values66
- Figure 62 - Removing the Backplane66
Serial Driver67
- Function67
- Connections67
- Verification67
- Removal and Installation68
Solenoids and Actuators68
- Function68
- Connections68
- Figure 63 - Cooling Valve Bodies68
- Verification69
- Table 13 - Solenoid Actuator Coil Resistance Ranges69
- Figure 64 - Motor Cooling Solenoid Actuators69
- Figure 65 - Motor Cooling Solenoid Cable Connector69
- Removal and Installation70
- Figure 66 - Solenoid Cooling Path (TT300/TG230 Shown)70
Igv71
- Function71
- Connections71
- Figure 67 - IGV Connections71
- Verification72
- Removal and Installation72
- Figure 68 - IGV Motor Feed through72
Bmcc73
- Function73
- Connections73
- Figure 69 - Disconnecting Power to the IGV Motor73
- Verification74
- Removal and Installation74
- Figure 70 - BMCC Insertion Guides74
Compressor Interface Module75
- Function75
- Connections75
- Figure 71 - Compressor Interface Module Ports75
- Figure 72 - Compressor Interface Module Jumper Locations75
- Verification77
- Removal & Installation78
- Figure 73 - Removing the Compressor Interface Module from the DIN Rail78
Bearing Pulse Width Modulator Amplifier79
- Function79
- Figure 74 - Bearing Control Signal Flow79
- Connections80
- Figure 75 - Bearing Power Feed Throughs and PWM Connection Port80
- Figure 76 - Bearing PWM Amplifier80
- Verification81
- Figure 77 - Connecting Leads to PWM Connector and HV- Test Point82
- Figure 78 - Connecting Leads to PWM Connector and HV+ Test Point82
- Removal and Installation83
- Figure 79 - Removing the PWM Amplifier83
Magnetic Bearings84
- Function84
- Figure 80 - Radial Magnetic Bearings84
- Figure 81 - Axial Magnetic Bearing84
- Connections85
- Verification85
- Figure 82 - Bearing Power Feed Throughs85
- Table 14 - Magnetic Bearing Coil Resistance Values86
- Figure 83 - Rear Bearing 6-Pin Orientation (TT300 Serial Numbers <081015110 Only)86
- Figure 84 - Front Bearing 4-Pin Orientation86
- Table 15 - Bearing Amperage Ranges87
- Figure 85 - Front and Rear Bearing Feed Throughs with Molex Connectors87
- Figure 86 - Compressor Monitor Tool87
Bearing Sensors88
- Function88
- Connections88
- Figure 87 - Bearing Sensor Feed Throughs88
- Figure 88 - Bearing Sensor Cables88
- Verification89
- Cavity Temperature Sensor89
- Pressure/Temperature Sensor92

Troubleshooting94

Maintenance114

Appendix A Acronyms/Terms121

Table 26 - Acronyms/Terms121

Appendix B Compressor Troubleshooting Flowcharts124

Appendix C Compressor Test Sheet127

Brand	Danfoss
Model	Turbocor TT350
Category	Air Compressor
Language	English

Danfoss Turbocor TT350 User Manual

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