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Trane RTAC 140-400 ton units (50 HZ), RTAC 140-500 ton units (60 Hz), Series R Air-Cooled Helical Rotary Liquid Chillers manual - page 6

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6RTAC-SVX01F-EN

Table of Contents

Periodic Maintenance........................................................................................ 149

Weekly Maintenance........................................................ ................................... 149

Maintenance Procedures..... ............................................................................. 155

Refrigerant and Oil Charge Management............................... ............................. 155

R134a Field Charging Procedure ......................................................................... 156

Factory (initial) Refrigerant Charging Procedure .................................................. 156

Field Refrigerant Charging Procedure.................................................................. 156

Adding charge:........................................................................................... .......... 15 7

Charge Isolation in the high or low side of system.............................................. 157

High side charge isolation procedure: ................................................................. 157

Returning unit to running condition: .................................................................... 158

Low side charge isolation procedure:............................................... ................... 158

Refrigerant Filter Replacement Procedure .......................................................... 159

Lubrication System....................................................... ....................................... 159

Oil Charging Procedure..................................................................................... ... 159

Factory (initial) Oil Charging Procedure................................................................ 161

Evaporator tube replacement .............................................................................. 163

Compressor Replacement................................................... ................................ 163

Unit Wiring...................................................................... ................................... 165

Contents

Main Preliminary Important Environmental Concerns! Responsible Refrigerant Practices! WARN ING Contains Refrigerant! Page Page Page Page Literature History Unit Identification - Nameplates Unit Inspection Inspection Checklist Loose Parts Inventory Unit Description Page Table 1 General Data 140-250 Ton 60 Hz Units - Standard Efficiency Size 140 155 170 185 200 225 250 Type STD STD STD STD STD STD STD Min Starting/Operating Ambient Table 2 General Data 275- 500 Ton 60 Hz Units - Standard Efficiency Size 275 300 350 400 450 500 Type STD STD STD STD STD STD Table 3 General Data 140-400 Ton 60 Hz Units - High Efficiency Table 4 General Data - 120-400 Ton 50 Hz Units-Standard Efficiency Size 140 155 170 185 200 250 275 300 350 375 400 Type STD STD STD STD STD STD STD STD STD STD STD Table 5 General Data - 120-400 Ton 50 Hz Units-High Efficiency Page Page Page Page Page Page Page Page Page Page Page Page Page Installation Responsibilities Nameplates Storage Location Requirements Page RTAC-SVX01F-EN 31 32 RTAC-SVX01F-EN Page Page Page 36 RTAC-SVX01F-EN Isolation and Sound Emission RTAC-SVX01F-EN 37 Noise Considerations Table 8 Unit Isolators Tonnage Efficiency Frequency Unit Type Condenser Fin Material Isolator Part Number Quantity Foundation Clearances Page Page Unit Isolation and Leveling Drainage Evaporator Water Piping Evaporator Piping Use Piping Strainers! Evaporator Water Pressure Drop RTAC 140 - 250 Ton Evaporator Water Pressure Drop RTAC 250 - 500 Ton Water Pressure Gauges Water Pressure Relief Valves Shell Damage! To prevent shell damage, install pressure relief valves in the evaporator water system. Freeze Protection Low Evaporator Refrigerant Cutout and % Glycol Recommendations Page Table 9 Glycol Recommendations Table 10 Recommended Low Evaporator Refrigerant Cutout and % Glycol System Configuration and Interconnecting Refrigerant Piping If the circuits are crossed, serious equipment damage may occur. Page Page Page RTAC-SVX01F-EN 53 Table 11 Liquid Line Sizes for Remote Evaporators (typical type L copper O.D.) Line Sizing RTAC 140-250 Ton Remote Evaporator Liquid Line Sizes 120-ton Circuit 70-ton Circuit 100-ton Circuit Page RTAC-SVX01F-EN 55 Table 13 Required Length of Field Installed Suction Accumulator Figure 28 Liquid Line Sizing Example Page Suction Accumulator Sizing Piping Installation Procedures Hazardous Gas! Refrigerant Sensors Refrigerant Pressure Relief Valve Venting Hazardous Gases! Leak Test and Evacuation Hazard of Explosion! Refrigerant and Additional Oil Charge Page General Recommendations Use Copper Conductors Only! Important! Page Page Page Page Page Page Page Page Page Page Page Page Installer-Supplied Components Control Power Supply Heat Tape! Interconnecting Wiring Page Low Voltage Wiring Page Page Page Page Communications Interface options Page Page Page Refrigerant R134a Compressor Condenser and Subcooler Expansion Valve Evaporator Oil System 90 RTAC-SVX01F-EN K E Y Figure 35 RTAC Oil System CH530 Communications Overview Controls Interface DynaView Interface Page Display Screens Auto Stop Alarms Front Panel Lockout Feature Display and Touch Screen are Locked Enter Password to Unlock Front Panel Display During Cold Ambients Display and Touch Screen are Locked Enter 159 to Unlock Modes Screen Auto Stop Modes Chiller Compressor Page Page Page Table 26 Circuit Modes Circuit Modes Description Top Level Mode Sub-modes Table 27 Compressor Modes Compressor Modes Description Top Level Mode Sub-modes Chiller Screen A uto Stop Chiller Compressor Modes Refrigerant Screen The refrigerant screen displays those aspects of the chiller related to the refrigerant circuits. Auto Stop Chiller Compressor Rfgt. Table 29 Compressor Screen Description Resolution Units Setpoint Screen Auto Stop Rfgt Setpoint Diagnostic Table 31 Setpoint Screen Description Resolution or Text Units Table 32 Setpoint Options/Conditions Displayed Option Condition(s) Explanation Auto Stop Alarms DiagnosticSetpointRfgt Power-Up Display Formats Tec h V i ew Minimum PC requirements to install and operate TechView Unit View Page Compressor Service View Page Page Page Setpoint View Setpoint Numeric Panel Change Setpoint Page Page Diagnostics View Configuration View Page Page Page Software View Binding View Software Download Page Page Page Page Page Page Page Page Page Page Page Page Installation Checklist Electrical Wiring Live Electrical Components! Use Copper Conductors Only! Information in Interconnecting Wiring! Connections! Use Piping Strainers! Unit Voltage Power Supply Unit Voltage Imbalance Unit Voltage Phasing Water System Flow Rates Water System Pressure Drop Page Daily Unit Start-Up Refrigerant! Seasonal Unit Start-Up Procedure System Restart After Extended Shutdown Unit Shutdown Procedures Temporary Shutdown And Restart Extended Shutdown Procedure Chilled Water Pump! Lock the chilled water pump disconnects open, to prevent pump damage. Page Page Page RTAC Start-u p Test Lo g RTAC Unit Configuration Setpoint View * Compressor Service View ** Configuration *** RTAC Chiller Log Status View: * Page Refrigerant and Oil Charge Management Page Charge Isolation in the high or low side of system Page Refrigerant Filter Replacement Procedure Lubrication System Oil Charging Procedure Page Note: Page Evaporator tube replacement Compressor Replacement Hazardous Voltage! Unit Wiring