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Trane ACSA Installation, Operation And Maintenance Manual
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Trane ACSA Installation, Operation And Maintenance Manual

Trane ACSA Installation, Operation And Maintenance Manual

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Installation, Operation, and Maintenance
Trane Rental Services
ACSA/ACXA Chillers
Models:
ACSA/ACXA
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning equipment
can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or
serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are attached to the equipment.
May 2025
SAFETY WARNING
TEMP-SVX002B-EN

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Summary of Contents for Trane ACSA

  • Page 1 Installation, Operation, and Maintenance Trane Rental Services ACSA/ACXA Chillers Models: ACSA/ACXA SAFETY WARNING Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury.
  • Page 2 (HCFCs). Not all refrigerants containing these compounds bump cap, fall protection, electrical PPE and arc have the same potential impact to the environment. Trane flash clothing). ALWAYS refer to appropriate advocates the responsible handling of all refrigerants.
  • Page 3 Non-Trane personnel should always follow local regulations. This document and the information in it are the property of Trane, and may not be used or reproduced in whole or in part without written permission. Trane reserves the right to WARNING...
  • Page 4 Table of Contents Model Number Description ....6 Water Shut-off Valves....23 Pump and Suction Guide.
  • Page 5 Table of Contents Start-Up and Shutdown ..... 39 Stopped to Starting....42 Normal Shutdown to Stopped .
  • Page 6 Model Number Description Digit 1, 2 — Unit Model RS = Rental Service Digit 3, 4 — Unit Type CA = Air-Cooled Chiller XA = Air-Cooled Heat Pump Digit 5, 6, 7, 8 — Unit Capacity 0200 = 200 Nominal Tons Digit 9 —...
  • Page 7 For flexible hose data, see Trane Rental Services Temporary Cooling - Flexible Water Hose - Installation, Operation, and Maintenance (CHS-SVX01*-EN). Electrical Cable For electrical cable data, refer to Electrical Cable in Trane Rental Services Electrical Cable - Engineering Bulletin (CHS-PRB005*-EN). Pig-Tail Connectors Each cable box has pigtails for non cam-type connections.
  • Page 8 General Information General Data Table 1. General data - ACSA-ACXA (IP) Unit Model RSCA0200F0 RSCA0200F1 RSCA0200J1 RSCX0200F1 Air-Cooled Heat Pump Unit Description Air-Cooled Chiller Chiller Nominal Cooling Capacity (tons) Electrical Operating Voltage 460 Vac 575 Vac 460 Vac Short Circuit Interrupt Rating...
  • Page 9 General Information Table 1. General data - ACSA-ACXA (IP) (continued) Unit Model RSCA0200F0 RSCA0200F1 RSCA0200J1 RSCX0200F1 EC Motor Tip Speed (Cooling 7,728 ft/min Mode) General Unit Refrigerant circuits Capacity steps 14-32-50-64-82-100 15-30-50-65-80-100 Min. Ambient Temperature - -20°F -4°F Cooling Mode Max.
  • Page 10 • Notify the Trane sales representative and arrange for repair. Do not repair the unit, until damage is inspected by the carrier representative. Table 2. Installation requirements...
  • Page 11 Pre-Installation Table 2. Installation requirements (continued) Trane Supplied Type Field Supplied Field Installed Trane Installed Field Installed • Flow switch • Water strainer • Taps for thermometers and gauges • Thermometers Water Piping Bypass piping and valves • Water flow pressure gauges •...
  • Page 12 Dimensions and Weights Service Clearances Figure 3. Unit service clearance requirements Control Panel 85” (2160mm) See note 3 40” (1016 NO OBSTRUCTIONS ABOVE UNIT 24” (600.1mm) note 1 36” (914.4mm) TOP VIEW Notes: • A full 40-inch clearance is required in front of the control panel.
  • Page 13 Dimensions and Weights Unit Drawings Figure 4. 200T ACSA (RSCA0200*0-*1) TEMP-SVX002B-EN...
  • Page 14 Dimensions and Weights Figure 5. 200T ACXA (RSXA0200F1) Unit Weights Table 3. Unit weights Weight (lb) Unit Shipping Operational 15,020 15,520 RSCA0200*0-*1 18,769 19,328 RSXA0200F1 TEMP-SVX002B-EN...
  • Page 15 • Do not puncture refrigerant tubing. At all times, Trane’s maintenance and service guidelines shall be followed. If in doubt, contact Trane technical • Dispose of properly in accordance with federal support for assistance. or local regulations.
  • Page 16 • Verify continuity of earth bonding. 2. Evacuate. • Replace electrical components with Trane replacement parts, or those meeting the same ratings and qualified 3. Purge the circuit with inert gas. for flame arrest protection, UL LZGH2 category. 4. Evacuate (optional for A2L).
  • Page 17 A2L Work Procedures Compressed air or oxygen shall not be used for purging recovered safely. Prior to the task being carried out, an oil refrigerant systems. and refrigerant sample shall be taken in case analysis is required prior to re-use of recovered refrigerant. It is The system shall be vented down to atmospheric pressure essential that electrical power is available before the task is to enable work to take place.
  • Page 18 Nominal 33% Load (4 Compressors Off) Nominal 17% Load (5 Compressors Off) Table 5. ACSA standard sound pressure levels (Lp, in dB, ref 1 µPa) - 10m from center of broad sides of chiller Overall A- Octave Band Center Frequency (Hz)
  • Page 19 Nominal 17% Load (5 Compressors Off) Note: ACSA full and part load sound data by octave band. The ACXA has no separate sound information available at this time - ACXA and ACSA have the same main components that contribute to sound.
  • Page 20 Installation NOTICE Lifting a unit with equal length straps will NOT produce a level unit during the lift because the CG will not be at the Equipment Damage! midpoint between the base lifting holes. The following To prevent damage to unit, do not fork lift or allow adjustments must be made to produce a level lift: lifting cables to contact unit during lift.
  • Page 21 Installation Figure 7. 200T ACSA/ACXA rigging diagram TEMP-SVX002B-EN...
  • Page 22 Trane assumes no responsibility for equipment failures which result from untreated or • Chiller main water connections are grooved.
  • Page 23 Installation manifold, users can check pressure at the: chiller/suction adequate flow to prevent the evaporator from freezing. This guide inlet, pump inlet/suction guide outlet, pump outlet/ flow sensor is wired into the controls of this unit. The unit strainer inlet, strainer outlet/evaporator inlet, and has a pump interlock control that requires flow to operate.
  • Page 24 Figure 8. Evaporator pressure drop curve 40.00 35.00 30.00 25.00 20.00 15.00 10.00 5.00 0.00 150.0 250.0 350.0 450.0 550.0 650.0 750.0 850.0 Flow Rate (gpm) 200T ACSA/ACXA Figure 9. Differential pressure - suction guide Pressure Drop (PSI) vs Flow (GPM) TEMP-SVX002B-EN...
  • Page 25 To minimize premature or catastrophic failure of flexible Use the services of a qualified water treatment hose provided as part of a Trane Rental Services rental or specialist to determine what water treatment, if hard pipe, refer to Trane Rental Services Temporary any, is required.
  • Page 26 Note: When installing water pipes, route them away from the compressor access panels to allow for compressor servicing or replacement. Ambient Freeze Avoidance Note: ACSA/ACXA chillers use brazed plate heat exchanges, which are NOT at risk for refrigerant A glycol type anti-freeze may be required for freeze migration freeze.
  • Page 27 Installation Table 8. ACSA/ACXA ambient freeze avoidance methods Protects to Ambient Method Notes Temperature • Symbio™ 800 controller can start the pump when the ambient temperatures drops to prevent freezing. For this option the pump must to be controlled by the chiller and this function must be Water Pump validated.
  • Page 28 Installation Table 9. Low evaporator refrigerant temperature cutout (LERTC) and low water temperature cutout (LWTC) — ethlyene glycol (continued) Solution Freeze Minimum Recommended Minimum Recommended Minimum Chilled Water Glycol Percentage (%) Point (°F) LERTC (°F) LWTC (°F) Setpoint (°F) 25.5 19.5 29.5 35.2...
  • Page 29 Installation Table 9. Low evaporator refrigerant temperature cutout (LERTC) and low water temperature cutout (LWTC) — ethlyene glycol (continued) Solution Freeze Minimum Recommended Minimum Recommended Minimum Chilled Water Glycol Percentage (%) Point (°F) LERTC (°F) LWTC (°F) Setpoint (°F) -42.3 -21.0 -7.0 -45.0...
  • Page 30 Installation Table 10. Low evaporator refrigerant temperature cutout (LERTC) and low water temperature cutout (LWTC) — propylene glycol (continued) Solution Freeze Minimum Recommended Minimum Recommended Minimum Chilled Water Glycol Percentage (%) Point (°F) LERTC (°F) LWTC (°F) Setpoint (°F) -1.8 -7.8 -3.5 -9.5...
  • Page 31 Installation Figure 12. Pump package unit schematic - RSCA0200*0, RSCA0200*1, RSXA0200F1 chillers TEMP-SVX002B-EN...
  • Page 32 Installation Pump Curves Figure 13. 200T ACSA/ACXA single-speed pressure curve Figure 14. 200T ACSA/ACXA multi-speed pressure curve TEMP-SVX002B-EN...
  • Page 33 Electrical Connections electric panel doors are opened for service, they should be closed as soon as service is The breaker for the ACSA/ACXA unit is located in the main completed. electric panel. Main power is supplied to the unit by cam-...
  • Page 34 Installation Voltage Supply Contact Trane Rental Services for further information. Measure each leg of supply voltage at all line voltage on NOTICE circuit breaker. Readings must fall within the voltage Use Copper Conductors Only! utilization range shown on the unit nameplate. If voltage on...
  • Page 35 NOTICE specialist to determine what water treatment, if any, is Equipment Damage! required. Trane assumes no responsibility for Failure to follow all instructions could result in equipment failures which result from untreated or improperly treated water, or saline or brackish water.
  • Page 36 Installation Figure 15. Basic bypass circuit EARTH MAIN DISCONNECT GROUND CUSTOMER SUPPLIED AC MOTOR INPUT Fuse Fuse L1/91 U/96 Type 1 Enclosure Fuse Fuse L2/92 V/97 POWER Fuse Fuse L3/93 W/98 EARTH GROUND CONTROL MK903 MK902 MK904 TRANSFORMER 24 V DC SMPS MK901 This pump VFD panel is separately fused and powered See table...
  • Page 37 Unit Controls described in NEC and your local/state/national electrical codes. Trane Rental Services ACSA and ACXA chillers utilize the following chiller control components: The remote devices described below require low voltage wiring. All wiring to and from these remote input devices to •...
  • Page 38 BAS allows external setpoint and configuration includes support for MODBUS and (with additional adjustment and monitoring of status and diagnostics. hardware) Lontalk protocols. Contact your local Trane The Symbio 800 utilizes the BACnet defined MS/TP office for additional information on integrating with building protocol as defined in ASHRAE standard 135-2004.
  • Page 39 Panel Chilled Water Setpoint from the Settings menu. located in the door of the shore power enclosure. Contact Trane Rental Services or your local Trane 2. Confirm evaporator heaters are operational and have office for applications with fluid temperature setpoints been operating for 24 hours prior to starting the unit.
  • Page 40 Start-Up and Shutdown 2. Service the auxiliary equipment according to the start- on these chillers. This section illustrates common control up/ maintenance instructions provided by the sequences. respective equipment manufacturers. Software Operation Overview 3. Remove all air from the system (including each pass). Close the vents in the evaporator chilled water circuits.
  • Page 41 Stopped to Starting occurs, but it is not apparent to • Smaller cylinders under the main cylinder indicate the user. diagnostic checks. Figure 17. Sequence of operation: power up diagram Second Trane Logo - Loading User Interface Template... Display Ready Black Screen Grey Screen Loading Data….
  • Page 42 Start-Up and Shutdown Power Up to Starting • Need to cool (differential to start) already exists • Oil level is detected immediately The following diagram shows the timing from a power up event to energizing the first compressor. The shortest The above conditions would allow for a minimum power up allowable time would be under the following conditions: to starting the first compressor time of about 45 seconds...
  • Page 43 Start-Up and Shutdown Figure 19. Stopped to starting Chiller Set to Auto Call for Cooling: Differential to Start is met Stopped Start Auto Auto Command to (Waiting for Evaporator (Waiting for Waiting to Start Waiting to Start Lead Water Flow) a Need to Cool) Inhibit Compressor*...
  • Page 44 Cooled Chiller Models ACS and ACX With Symbio™ transportation. Controls 140 to 230 Nominal Tons Installation, Operation, and Maintenance (AC-SVX004*-EN). 6. Return hose, fittings or cables (if furnished by Trane Rental Services) to appropriate containers for return Decommissioning Procedure shipment.
  • Page 45 Notes TEMP-SVX002B-EN...
  • Page 46 Notes TEMP-SVX002B-EN...
  • Page 47 Notes TEMP-SVX002B-EN...
  • Page 48 For more information, please visit trane.com or tranetechnologies.com. Trane has a policy of continuous product and product data improvements and reserves the right to change design and specifications without notice. We are committed to using environmentally conscious print practices.

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