Table of Contents
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Installation, Operation, and Maintenance
Split System
Cooling Condensers — 20 to 120 Tons
Remote Chillers — 20 to 120 Tons
RAUJ-C20
RAUJ-C25
RAUJ-C30
RAUJ-C40
RAUJ-C50
RAUJ-C60
RAUJ-C80
RAUJ-D10
RAUJ-D12
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.
April 2020
S S A A F F E E T T Y Y W W A A R R N N I I N N G G
S S S S - - S S V V X X 1 1 1 1 K K - - E E N N
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Table of Contents
Related Manuals for Trane RAUJ-C40
Summarization of Contents
Installation, Operation, and Maintenance
Split System Overview
Covers cooling condensers and remote chillers, 20-120 tons.
General Safety Warning
Crucial safety precautions for equipment installation and servicing.
Introduction
Warnings, Cautions, and Notices
Defines three types of safety advisories used in the manual.
Environmental and Refrigerant Practices
Discusses environmental impact of refrigerants and responsible handling.
Field Wiring and PPE Requirements
Safety mandates for electrical wiring, grounding, and PPE.
EHS Policies and R-410A Safety
Adherence to EHS policies and R-410A refrigerant safety.
Model Number Description
20 to 60 Ton Unit Model Breakdown
Explains model number digits for 20-60 ton units.
80 to 120 Ton Unit Model Breakdown
Explains model number digits for 80-120 ton units.
General Information
Unit Inspection Procedures
Guidelines for exterior and concealed damage inspection.
Nameplates and Unit Protection
Details on unit nameplates and phase monitor protection.
Unit Description and Components
Overview of unit design, components, and protectors.
General Data
RAUJ Condensing Unit Specifications
Table of general technical data for RAUJ units.
Dimensions and Weights
Unit Clearances
Minimum clearances for installation and service.
Unit Dimensions
Detailed dimensional drawings for various unit sizes.
Unit Weights
Tables for RAUJ and EVP unit shipping and operating weights.
Installation Mechanical
Location Requirements
Guidelines for selecting unit installation locations.
Leveling the Unit
Procedures for properly leveling the unit.
Rigging and Lifting Procedures
Safety instructions for rigging and lifting heavy equipment.
Unit Isolation Methods
Using neoprene or spring isolators to minimize vibration.
Refrigerant Piping Requirements
Guidelines for installing refrigerant piping components.
Suction and Liquid Line Components
Field installation of suction and liquid line components.
TXV and EVP Piping
TXV and evaporator piping for EVP chillers.
Brazing and Leak Testing Procedures
Essential techniques for safe refrigerant piping brazing and leak testing.
Installation Electrical
RAUJ Electrical Data
Table of electrical data for RAUJ units.
Main Electrical Power Requirements
Guidelines for main electrical power wiring and grounding.
Control Wiring Requirements
Requirements for 115VAC, 24VAC, and DC control wiring.
Field Installed Power and Control Wiring
Safety and installation for field power and control wiring.
Disconnect Switch and Power Wiring
Operation of disconnect switch and main power wiring.
Power Wire Sizing and Protection
Guidance on sizing power wires and protection devices.
Unit Specific Control Wiring
Wiring for VAV, CV, EVP, and other control configurations.
Sensor and Thermostat Wiring
Installation and wiring of discharge air and suction line sensors.
Control System Checkout Procedures
Checkout procedures for thermostats and controllers.
EVP Chiller Control and Wiring
Components and wiring for EVP chiller control systems.
Wiring Diagram Index
List of available unit wiring diagrams via e-Library.
Pre-Start Procedures
Pre-Start Checklist
Checklist to ensure the unit is ready for operation.
System Evacuation and Vacuum Test
Procedures for evacuating circuits and performing vacuum tests.
Controller and Sensor Checkout
Procedures for checking controllers and sensors.
EVP Chiller Control Checkout
Checkout procedure for the W7100G chilled water controller.
Start-Up Procedures
Low Ambient Damper Adjustment
Adjusting low ambient dampers for proper operation.
EVP Chiller Start-Up
Start-up procedures specific to EVP chiller applications.
System Airflow Measurement
Methods for measuring system airflow.
Expansion Valve Adjustment and Charging
Adjusting TXVs and adding refrigerant charge.
Compressor Start-Up and Rotation
Procedures for starting compressors and verifying rotation.
System Charging and Verification
Charging the system and verifying operating parameters.
Motors Rotating Backward Troubleshooting
Troubleshooting steps for rotating components.
Subcooling, Superheat, and Pressure Curves
Measuring subcooling, superheat, and using pressure curves.
Final System Setup
Recommended Operating Setpoints
Table of recommended setpoints for system controls.
Maintenance Procedures
Monthly Maintenance Checks
Routine checks for air handling and condensing units.
Coil Cleaning and Maintenance
Procedures for cleaning coils and maintaining EVP chillers.
Refrigerant Evacuation and Charging
Procedures for safe refrigerant handling.
Compressor Replacement and Electrical Phasing
Steps for compressor replacement and electrical phasing.
Suction Line Filter and Fuse Replacement
Installation of suction line filters and fuse replacement.
Fall Restraint Safety
Safety instructions for fall restraint on condenser roofs.
Warranty and Liability Clause
Products Covered by Warranty
Details which equipment is covered by the warranty.
Wiring Diagrams Index
Published Unit Wiring Diagrams
List of available unit wiring diagrams via e-Library.
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