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Trane CGWF Introduction, The Trane 20-60 Ton Scroll Liquid Chiller, Design, Reliability, Control

Models: CCAF CGWF

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Introduction

Introduction

The Trane 20-60 Ton Scroll Liquid Chiller

More Than Just Another “Improved” Chiller

—Advanced Design

—Better Reliability

—Superior Efficiency

—New CH530 Controls

—Better Availability

—Easier To Install and Operate

Design

The Trane scroll compressor is the most advanced scroll compressor in the industry.

Reliability

64 percent fewer compressor parts, compared to reciprocating compressors, mean long and reliable life.

Efficiency

CGWF scroll chillers meet and exceed ASHRAE Standard 90.1 full and part load efficiencies. Part load efficiencies are simply unmatched by reciprocating chillers.

Control

CH530 controls enable scrolling access to inputs and operating information via the LCD touch-screen display. Job- specific communication options allow greater reporting flexibility. The CH530 is compatable with LonMark communications.

Availability

Fast ship cycles on both stock and built- to-order specials.

Installation

Small unit size, factory wiring, easy lifting provisions, and start-up control logic mean quick and easy setup. Chillers fit through standard single- width door.

Operation

Smart safety features and over 60 diagnostic displays mean easy and virtually trouble-free operation.

Microprocessor

Operator

Interface

Control

Panel

Condenser

Leaving

Water

Piping

Condenser

Entering

Water

Piping

Rugged

Trane Scroll

Compressor

Evaporator

Leaving

Water Piping

© 2004 American Standard Inc. All rights reserved.

CG-PRC012-EN

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Trane CGWF Introduction, The Trane 20-60 Ton Scroll Liquid Chiller, More Than Just Another “Improved” Chiller, Design

Contents

17 to 50 Tons 50 Hz Water-Cooled and Condenserless Scroll Liquid ChillersModel CGWF and CCAF 20 to 60 Tons 60 Hz JanuaryThe Trane 20-60 Ton Scroll Liquid Chiller IntroductionInstallation More Than Just Another “Improved” ChillerContents Easy Serviceability Features and BenefitsInstallation Build To OrderReliability Features and World Class EfficiencyBenefits EfficiencyReliability Features and World Class EfficiencyBenefits Trane Scroll Compressor Maximum Efficiency with Enhanced ReliabilityRemote Input Options Features and Benefits OptionsOptions Standard Features ControlsSafety Controls Human InterfacesAlarm Descriptor Generic Building Management System Hardwire PointsChiller Enable/Disable Chiller Hardwire Inputs IncludeTrane Chiller Plant Control Additional Features That May Be UsedControls Required OptionsKeeping Operators Informed ControlsEnergy Efficiency Swift Emergency ResponseWater Treatment Application ConsiderationsUnit Location Water PumpsDigit 19 - Power line connection type T = Terminal block Model Number DescriptionDigit 15 - Condenser temperature range 0 = None - CCAF units Digit 27 - Ship-with accessories - isolators, WRVTable GD-2. General data - CCAF compressor chiller General DataTable GD-1. General data - CGWF water-cooled chiller Compressor Chiller - CCAF - Selection Example Selection ProceduresScroll Liquid Chiller - CGWF - Selection Example Data PerformanceFull Load PerformanceData PerformanceFull Load PerformanceData PerformanceFull Load PerformanceData PerformanceFull Load PerformanceData PerformanceFull Load PerformanceData PerformanceFull Load PerformanceData PerformanceFull Load PerformanceData Part LoadPerformance PerformanceFigure PAF-1. Ethylene glycol performance adjustment factors Performance AdjustmentData Factors Figure PAF-2. Propylene glycol performance adjustment factorsTable PAF-1. Pressure drop correction factor Performance AdjustmentData Factors Table PAF-2. Pressure drop correction factorData Chart PD-1. CGWF evaporator Chart PD-2. CGWF condenserPerformance Pressure DropsElectrical Data and Connections Table E-1. Electrical data for CGWF water-cooled chillersElectrical Data Typical WiringDiagram and ConnectionsDiagram and ConnectionsTypical Wiring Electrical DataElectrical Data and Connections Field Layout CG-PRC012-ENElectrical Data and Connections Field Layout CG-PRC012-ENData DimensionalCGWF 20-30 Ton Data CGWF 40-50 TonDimensional Data CGWF 60 TonDimensional Data CCAF 20-30 TonDimensional Data CCAF 40-60 TonDimensional Table W-2. Weights, CCAF compressor chillers WeightsTable W-1. Weights, CGWF chillers Compressor-Motor Mechanical SpecificationsGeneral EvaporatorMechanical Specifications StarterTrane