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Trane CGA Series User Manual

Trane CGA Series
24 pages
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Scroll chillers and heat pumps
Models CGA/CXA
May 2015 CG-SVX031A-GB
Original instructions
Installation
Operation
Maintenance
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Trane CGA Series Specifications

General IconGeneral
BrandTrane
ModelCGA Series
CategoryHeat Pump
LanguageEnglish

Summary

Overview

Warranty

Explains warranty terms, conditions, and voidance criteria for the unit.

Receiving the Unit

Details procedures for checking units upon delivery for damage or missing parts.

Factory Inspection

Describes factory inspection processes and conditions for performance testing.

Improper Uses

Outlines uses that are not intended and could compromise safety or performance.

Safety Symbols

Explains the meaning of various safety symbols and warning labels used in the manual.

Reference and Certifications

Reference Standards

Lists applicable directives and standards for the unit's design and manufacturing.

Certifications

Details the certifications and approvals obtained by the unit from notified bodies.

Definitions

Defines key roles and responsibilities such as Owner, Installer, Operator, and Technician.

Access to Dangerous Areas

Provides guidance on safely accessing hazardous areas within the unit and necessary precautions.

General Precautions

General safety advice to be followed when working with or around the unit.

Installation

Moving and Positioning the Unit

Instructions and precautions for safely lifting, moving, and placing the unit in its final location.

Precautions for Dominant Winds

Advises on avoiding obstacles and managing wind effects on unit performance.

Precautions Against Direct Sunshine

Explains how direct sun exposure can affect unit operation and cause shutdowns.

Precautions Against Fireplaces and Exhaust Hot Air

Recommends avoiding installation near exhaust fumes or heat sources.

Precautions Against Foliage and Foreign Bodies

Advises against installing near plants that could obstruct airflow.

Control of Compressor Fastening

Details how to manage compressor securing mechanisms for vibration isolation.

Electrical Connections

Electrical Power Supply

Specifies requirements for the mains power supply voltage and phase balance.

Power Connections

Outlines procedures for connecting the unit's power supply circuit safely and compliantly.

Unbalance Between Supply Tension Phases

Warns against operating with voltage phase unbalance exceeding 3% and its warranty implications.

Harmonic Components and THD Value

Explains harmonic distortion (THD) and its impact on power supply and unit operation.

Water Connections for Air-Water

Evaporator Connections

Lists required components and considerations for the evaporator's water circuit installation.

Condenser Connections

Details installation procedures and conditions for the condenser's water piping.

Minimum Water Content and Flow Rates

Provides formulas for calculating required water content and flow rates for optimal operation.

Water Circuit Regulation Equipment

Describes essential components for regulating the water circuit, like pumps and valves.

Hydraulic Diagrams

Hydraulic Sketch Basic Version

Illustrates the basic hydraulic circuit layout with component labeling.

Hydraulic Sketch Version B1 - N. 1 Water Pump

Shows the hydraulic circuit for a specific version with one water pump.

Hydraulic Sketch Version SB - N. 1 Water Pump + Built-in Water Tank

Depicts the hydraulic circuit for a version with a water pump and built-in water tank.

Tank Mounting Instructions

Start-up Procedures

Starting Check

Essential checks to perform on connected machinery and unit components before starting.

Refrigerant Seals Control

Procedures for checking refrigerant leaks and dehydrating the system using vacuum.

Refrigerant Charge Check

Methods for verifying correct refrigerant charge by observing sight glass bubbles.

Start-up

Preliminary Controls

Pre-operation checks including mechanical tightness and oil heater insertion.

Starting Up the Unit

Steps to initiate the unit's operation and initial checks on rotation and controls.

Warm-up of the Plant for Air-to-Water Units

Procedure to bring the plant to the correct operating temperature before releasing cooling.

Control of the Oil Charge

Instructions on checking and adjusting the compressor oil level using the sight glass.

Maintenance

Power Supply to the Auxiliary Circuit

Details the 220V power supply for the auxiliary circuit and connected components.

Recommended Spare Parts

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