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Trane RTRA 110 User Manual

Trane RTRA 110
32 pages
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RTRA Screw compressor liquid chillers with centrifugal fans, air cooled
RTRA
Screw compressor liquid chillers
with centrifugal fans, air cooled
Installation
Operation
Maintenance
This manual should be used jointly
with the manual of the UCM-CLD
reference L80 IM 025 E
D20 IM 001 GB
Sizes : 107 - 108 - 109 - 110
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Trane RTRA 110 Specifications

General IconGeneral
BrandTrane
ModelRTRA 110
CategoryAir Compressor
LanguageEnglish

Summary

Installation Guide

Unit Description and Responsibilities

Covers unit details, safety, installation tasks, and nameplate information.

Site Preparation and Location

Guidance on storage, pre-installation checks, unit location, and noise mitigation.

Foundation, Clearances, and Drainage

Details on preparing the installation site, required clearances, and water drainage management.

Lifting and Moving Instructions

Procedures for safely lifting and moving the unit during installation.

Unit Isolation, Leveling, and Piping

Instructions for isolating, leveling the unit, and connecting water piping systems.

Water Circuit Details and Drain

Specifics on chilled water lines, drain connections, and flow switches for the water circuit.

Evaporator Water Pressure Drop

Information on measuring and verifying pressure drop across the evaporator.

Water Treatment and Freeze Protection

Guidelines for water treatment and protecting the unit from freezing conditions.

Ductwork Recommendations

Advice on proper installation of ductwork for efficient air discharge.

Electrical Wiring and Control Panel Setup

Covers power supply, unit wiring, and remote control panel installation procedures.

Operation Procedures

Operating Principles and Refrigeration Cycle

Overview of chiller operation, including mechanical principles and the cooling cycle.

Cycle Description and Compressor Details

Detailed breakdown of the refrigerant cycle and the unit's compressor components.

Oil System Operation and Components

Explains the oil system, separator, and oil supply mechanisms for compressor lubrication.

Compressor Control and Fan Staging

Details on slide valve movement for capacity control and condenser fan staging logic.

Pre-Start and Voltage Checks

Essential pre-start checks, including power supply voltage and system flow verification.

Startup, Shutdown, and System Monitoring

Procedures for starting, stopping, and monitoring unit performance parameters.

Maintenance and Service

Periodic Maintenance Schedule

Outlines weekly, monthly, and general periodic maintenance tasks and intervals.

Annual Maintenance and Coil Cleaning

Details annual checks, fan inspection, and coil cleaning procedures for optimal efficiency.

Evaporator Cleaning and Service Pumpdown

Procedures for chemical cleaning of the evaporator and using the service pumpdown mode.

Start Log Sheet and Installation Checklist

Forms for recording startup data and verifying installation completeness.

Safety, Contracts, and Training

Final recommendations on safety, maintenance contracts, and operator training resources.

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