Trane RTAA-200 User Manual

Library Service Literature
Product Section Refrigeration
Product Rotary liquid Chillers – Air-Cooled
Model RTAA
Literature Type Installation, Operation, Maintenance
Sequence 3
Date December 1991
File No. SV-RF-RLC-RTAA-IOM-3-1291
Supersedes
Installation RTAA-IOM-3
Operation
Maintenance
Since The Trane Company has a policy of continuous product improvement, it reserves the right to change
specifications and design without notice. The installation and servicing of the equipment referred in this booklet
should be done by qualified, experienced technicians.
Air-Cooled
Series R
®
Rotary Liquid
Chillers
“CO” and Later Design Sequence
Packaged Air-Cooled Chiller,
RTAA 130-400
Remote Evaporator Air-Cooled Chiller,
RTAA 130-200
Models
RTAA-130 RTAA-170 RTAA-240 RTAA-340
RTAA-140 RTAA-185 RTAA-270 RTAA-370
RTAA-155 RTAA-200 RTAA-300 RTAA-400
Part No. X39560468-01

Trane RTAA-200 Specifications

General

Brand	Trane
Model	RTAA-200
Category	Chiller
Language	English

Summary

Refrigeration (Cooling) Cycle

Installation - Mechanical, Packaged Unit and Units with Remote Evaporator Option

Location Requirements

Guidelines for selecting the unit's installation location.

Foundation

Requirements for the unit's mounting pad or foundation.

Clearances

Recommended space around the unit for service and access.

Rigging

Lifting Procedure

Step-by-step instructions for safely lifting the unit.

Unit Isolation and Leveling

Evaporator Water Piping

Procedures for flushing and connecting evaporator water piping.

Water Treatment

Freeze Protection

Methods for protecting the unit and piping from freezing temperatures.

Installation - Mechanical Remote Evaporator Interconnecting Refrigerant Piping

System Configuration

How system configuration affects piping and refrigerant charge.

Line Sizing

Equivalent Line Length

Determining the equivalent length of pipe for proper line sizing.

Liquid Line Sizing

Procedures and tables for sizing liquid refrigerant lines.

Suction Line Sizing

Piping Installation Procedures

Leak Test and Evacuation

Refrigerant and Additional Oil Charge

Information on refrigerant and oil charging procedures.

Installation – Electrical

General Recommendations

General safety and code compliance recommendations for electrical work.

Installer-Supplied Components

Power Supply Wiring

General requirements for sizing and selecting power supply wiring.

Interconnecting Wiring

Chilled Water Pump Interlock and External Auto/Stop for Model RTAA Air-Cooled Series R CenTraVac

Wiring for chilled water pump interlock and external auto/stop functions.

Alarm/Running/Maximum Capacity Outputs

Description of available contact outputs for system status indication.

Emergency Stop (Normal Trip)

Wiring and function of the emergency stop circuit.

External Circuit Lockout – Circuit #1

Control wiring for circuit #1 lockout function.

External Chilled Water Setpoint (CWS): Remote Resistor/Potentiometer, Voltage Source 2-10 VDC, or Current Source 4-20 mA

External Current Limit Setpoint (CLS): Remote Resistor/Potentiometer, Voltage Source 2-10 VDC or Current Source 4-20 mA

Optional Bidirectional Communications Link (BCL)

Installation Check List

Unit Piping

Checklist for completing unit water piping connections.

Electrical Wiring

Checklist for all electrical wiring connections.

Operating Principles – Mechanical

Refrigeration (Cooling) Cycle

Explanation of the refrigeration cycle components and flow.

Compressor Description

Detailed description of the compressor and its parts.

Oil System Operation

Operating Principles – Adaptive Control™ Microprocessor Logic

Menus

Condition/Diagnostic Codes

Chiller Switch

Menu Function Descriptions and Selection

Operational Features

Chilled Water Reset (CWR)

Diagnostics and Troubleshooting

Pre-Start Checkout

Unit Voltage Power Supply

Unit Voltage Imbalance

Understanding and calculating voltage imbalance.

Unit Voltage Phasing

Water System Flow Rates

Water System Pressure Drop

Start-Up Procedures

General

Step-by-step guide for starting the unit after installation.

Unit Shutdown Procedures

Temporary Shutdown and Restart

Procedure for short-term shutdown and subsequent restart of the unit.

Extended Shutdown Procedure

Steps for taking the unit out of service for an extended period.

System Restart After Extended Shutdown

Periodic Maintenance

Refrigerant Emission Control

Weekly Maintenance

Routine checks and procedures to perform weekly.

Monthly Maintenance

Annual Maintenance

Comprehensive maintenance tasks to be performed annually.

Maintenance

Coil Cleaning

Procedures for cleaning condenser coils to maintain efficiency.

Chemically Cleaning The Evaporator

Methods for chemically cleaning the evaporator if fouling occurs.