Trane Ascend ACR C Series - Unit Sizes 375 to 550 Tons

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AC-SVX003A-EN

Unit Sizes 375 to 550 Tons

Figure 7. Dimensions — 375 to 550 ton units without direct-free cooling

Dimensions and Weights

Main Page

Table of Contents4
Model Number Information7
Nameplates7
Unit Nameplate7
Model Number Coding System7
Compressor Nameplate7
Model Number Descriptions8
Unit Model Number8
Compressor Information10
General Information11
Unit Length11
Accessory/Option Information11
General Data11
Pre-Installation16
Unit Inspection16
Exterior Inspection16
Inspection for Concealed Damage16
Repair16
Storage Requirements16
Installation Requirements17
Dimensions and Weights18
Weights18
Service Clearance20
Unit Dimensions21
Unit Sizes 150 to 330 Tons21
Unit Sizes 375 to 550 Tons32
Installation Mechanical35
Location Requirements35
Sound Considerations35
Foundation35
Clearances35
Lifting and Moving Instructions35
Isolation and Sound Emission37
Unit Isolation and Leveling37
Elastomeric Isolators37
Mounting Locations, Weights38
Isolators38
Compressor Mounting Bolt Removal52
Drainage52
Refrigerant Pressure Relief Valves52
Evaporator Piping52
Evaporator Piping Components54
Pump Package56
Freeze Protection58
Low Evaporator Refrigerant Cutout, Glycol59
Requirements59
Installation Electrical62
General Recommendations62
Units with Nitrogen Charge Option62
Installer-Supplied Components62
Power Supply Wiring63
Adaptive Frequency Drive Capacitor66
Discharge66
Control Power Supply66
Service Power Connection66
Heater Power Supply66
Chilled Water Pump Control67
Evaporator Pump Package68
Evaporator Flow Measurement68
Programmable Relays68
Relay Assignments Using Tracer® TU69
Low Voltage Wiring69
Emergency Stop69
External Auto/Stop69
External Circuit Lockout - Circuit #170
And #270
Ice Building Option70
External Chilled Water Setpoint (ECWS) Option70
External Demand Limit Setpoint71
(EDLS) Option71
EDLS and ECWS Analog Input Signal71
Wiring71
Chilled Water Reset (CWR)72
Building Automation Systems72
Bacnet Building Automation Control72
Network72
Modbus Automation Control73
Network73
Systems73
Operating Principles74
Refrigeration Circuits74
Refrigeration Cycle74
Refrigerant74
Compressor and Oil System74
Condenser and Fans74
Evaporator75
Free-Cooling Operating Modes75
Mechanical Cooling Mode75
Combined Mechanical and Free75
Cooling Mode75
Free-Cooling Only Mode75
Controls76
Overview76
Symbio™ 80076
Adaptiview™ Display76
Noise Reduction Mode76
Tracer TU76
Integrated Rapid Restart77
Pre-Start78
Start-Up and Shutdown79
Unit Start-Up79
Temporary Shutdown and Restart79
Extended Shutdown Procedure79
Seasonal Unit Start-Up Procedure80
System Restart after Extended80
Shutdown80
Sequence of Operation80
Software Operation Overview80
Power up Diagram82
Power up to Starting83
Stopped to Starting84
Load85
Load86
Satisfied Setpoint with Operational87
Pumpdown87
Full Load to Minimum Load88
Normal Shutdown to Stopped or Run89
Inhibit89
Run Inhibit90
Ice Making91
Running)91
Ice Making (Stopped to Ice to Ice Making Complete)92
Maintenance93
Recommended Maintenance93
Weekly93
Monthly93
Annual93
Refrigerant and Oil Charge94
Management94
Lubrication System94
Oil Sump Level Check94
Condenser Coil Cleaning95
Coil Cleaning Interval95
Cleaning Air Side of Coils95
Cleaning Microchannel Coils95
Cleaning the Evaporator96
Pump Package96
Free-Cooling Coil97
Free-Cooling Coil Cleaning97
Free-Cooling Fluid Management97
Reinstallation of Compressor Mounting97
Bolts97
Servicing Chiller Roof97
Diagnostics98
General Diagnostics Information98
AFD Diagnostics98
Starter Diagnostics101
Main Processor Diagnostics103
Communication Diagnostics111
Unit Wiring116
Log and Check Sheets119
Ascend™ Model ACR Series C Installation120
Trane Service120

Trane Ascend ACR C Series - Unit Sizes 375 to 550 Tons

Table of Contents

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