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Installation Instructions
CSHW Compressors
Installation and Service
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.
June 2020
SAFETY WARNING
COM-SVN003B-EN

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Summary of Contents for Trane Technologies CSHW047

  • Page 1 Installation Instructions CSHW Compressors Installation and Service 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. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are attached to the equipment.
  • Page 2 Introduction Read this manual thoroughly before operating or servicing this unit. WARNING Proper Field Wiring and Grounding Warnings, Cautions, and Notices Required! Safety advisories appear throughout this manual as Failure to follow code could result in death or serious required. Your personal safety and the proper operation of injury.
  • Page 3 Introduction WARNING WARNING R-410A Refrigerant under Higher Pressure Hazardous Service Procedures! than R-22 The maintenance and troubleshooting procedures recommended in this section of the manual could result Failure to use proper equipment or components as in exposure to electrical, mechanical or other potential described below, could result in equipment failing and safety hazards.
  • Page 4 Introduction Copyright 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 revise this publication at any time, and to make changes to its content without obligation to notify any person of such revision or change.
  • Page 5: Table Of Contents

    Table of Contents Model Number Descriptions ....6 General Information ..... 7 Overview .
  • Page 6: Model Number Descriptions

    Model Number Descriptions Digits 1, 2, 3, 4 — Model Type CSHW = 3.9 – 7.4 tons Digits 5, 6, 7 — Nominal Capacity in MBh CSHW CSHW (Non-Unloading) (Unloading) Digit 8 — Voltage 200–230/60/3 460/60/3, 380–415/50/3 575/60/3 380/60/3 Digit 9 — Unloading No Unloading Unloading (1 step Unloading with solenoid not energized)
  • Page 7: General Information

    Model Pints Liters • Loss of refrigerant charge CSHW047 - CSHW073 Protection devices are required to keep the compressor CSHW082 - CSHW089 within the operating envelop during operation and fault Notes: 1. Oil amount and type is also printed on the nameplate.
  • Page 8: Refrigerant Type

    General Information Figure 1. R-410A operating map for CSHW at 20°F suction superheat CSHW Operating Envelope --- R-410A Full Load Operating Map Unloaded Map; Reduced Operating Map Saturated Suction Temperature (°F) Additional basic limitations on operating • If required, heaters must be energized for a minimum of eight hours prior to starting the compressor to conditions: insure that liquid refrigerant is not in the compressor at...
  • Page 9: Pre-Installation Inspections

    General Information NOTICE WARNING Compressor Damage! R-410A Refrigerant under Higher Pressure than R-22 Improper handling of the compressor could result on compressor damage. A compressor that has been Failure to use proper equipment or components as tipped, dropped or transported in a non-upright position described below, could result in equipment failing and could contain internal damage and it is recommended possibly exploding, which could result in death, serious...
  • Page 10: Mechanical Failure

    General Information Test the acid condition of the oil in the compressors using WARNING an acid test kit. Use Trane Part Numbers CHM00414 and Hazard of Explosion! 45006. Failure to follow instructions below could result in Two Types of Motor Failures death or serious injury or equipment or property-only damage.
  • Page 11: Removal And Installation

    Removal and Installation WARNING WARNING Refrigerant under High Pressure! Hazardous Voltage w/Capacitors! Failure to follow instructions below could result in an Failure to disconnect power and discharge capacitors explosion which could result in death or serious injury before servicing could result in death or serious injury. or equipment damage.
  • Page 12: Compressor Replacement-Tandem And Trio Compressor Sets

    Removal and Installation Compressor Replacement—Tandem WARNING and Trio Compressor Sets Hazard of Explosion and Deadly Gases! Definitions: Failure to follow all proper refrigerant handling • Tandem—Two compressors on a single refrigerant practices could result in death or serious injury. circuit. Never solder, braze or weld on refrigerant lines or any •...
  • Page 13 Removal and Installation • Remove equalizer rubber plug and drain oil from ii. Use 40% silver brazing alloy with flux. replacement compressor. iii. Start heating the tube first. Evenly heat the tube, • Install replacement compressor in unit using slip location 1 (see the figure below), until it reaches couplings on suction and/or discharge tubing, as a dull red color.
  • Page 14: Electrical Connections

    Removal and Installation • When brazing, always use a nitrogen purge to prevent Figure 4. Color coded compressor power plug the formation of copper oxide contamination that can damage the compressor. Electrical Connections WARNING Hazardous Service Procedures! Failure to follow all instructions in this manual and on the tags, stickers, and labels could result in death or serious injury.
  • Page 15: Leak Detection

    Removal and Installation Leak Detection NOTICE Overpressure Damage! WARNING Failure to follow these instructions could result in compressor damage. Do not pressurize the low side of Hazard of Explosion! the compressor by more than 5 bar (72 psig) higher Failure to follow instructions below could result in than the high side of the compressor within less than death or serious injury or equipment or property-only two minutes.
  • Page 16: Charging The System

    Removal and Installation Verification Before Start-Up vacuum with dry nitrogen and repeat evacuation process to 500 micron. Follow the instructions in the unit Installation, Operation, • Once system is leak-tight, connect compressor repeat and Maintenance manual. If there are no instructions the vacuum procedure, break vacuum with dry available, use these guidelines: nitrogen and evacuate to 500 microns.
  • Page 17: Start-Up

    Start-Up Follow the instructions in the unit Installation, Operation, and Maintenance manual. If there are no instructions available, use these guidelines: NOTICE Equipment Damage! Failure to follow guidelines below could result in equipment damage. • Never start the compressor without refrigerant in the system.
  • Page 18: Maintenance

    Maintenance Check the unit Installation, Operation, and Maintenance manual for specific instructions. Operating conditions must always remain within the operating range of the compressor. This includes: • Operating pressures (suction and discharge pressure). • Operating temperatures (suction, discharge, and liquid). •...
  • Page 19: Troubleshooting

    Troubleshooting Important: Check the unit Installation, Operation, and • Excessive floodback—The superheat should be a Maintenance manual for additional minimum of 16°F at full load and oil sump temperature information regarding diagnosis and should be at least 20°F above the saturated suction causes.
  • Page 20 Troubleshooting Compressor short cycling • Check the unit Installation, Operation, and Maintenance manual for possible diagnostics codes and corrective action. • Also check for: – Defective unit controls—maximum 12 starts per hour. – Compressors cycling on safety controls. – Unit oversized. –...
  • Page 24 Trane - by Trane Technologies (NYSE: TT), a global climate innovator - creates comfortable, energy efficient indoor environments for commercial and residential applications. For more information, please visit trane.com or tranetechnologies.com. Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice.

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