RTAC product Presentation · RLC-CMS002-E4 © American Standard Companies, inc 2002 - All Rights Reserved Complete and Large Range... 4 versions from 260 to 480 kW Standard High

RLC-CMS002-E4 © American Standard Companies, inc 2002 - All Rights Reserved

Concentration of intelligence,

High reliability.

Series RTM


RTAD Liquid Chillers

A concentrate of TRANE

Technology

Based on experience from

thousands of references

In a very compact design


Complete and Large Range...4 versions from 260 to 480 kW

Standard

High

efficiency

Low

Noise

Low Noise +

High efficiency

2 Compressors - 2 refrigerant circuits


Wide application rangeYear round operation

Standard

Ambient

Low

Ambient

High

Ambient

Wide

Ambient

Ambient Air TemperatureWater Temperature


A Concentrate of TRANE Technology

Advanced

Coil

Technology

New

Helirotor

Compressor

Optimized Oil

Separation

Adaptive

Control

Crenellated

Blades

Fans

Electronic

Expansion

Valve


A New Generation of Helirotor CompressorWorld ’s most reliable compressor

Unequaled reliability rate in the

industry

Over 300 000 helirotor

screw compressors built

Only 2 rotating parts: 15 times

fewer moving parts than

reciprocating compressors

Able to stand accidental liquid

refrigerant ingestion



Direct drive low speed - 3000 RPM

Specifically designed for R134a use

Rotor profile optimized

Suction gas cooled motor

Wye/Delta starter

No oil pump

Rolling element bearing sized for chillerlifecycle

Mounted on isolators



High capacity oil filter

One of the smallest oil charge

of the market

Only 5 to 11 liters per compressor


A New Generation of Helirotor CompressorExact load matching

% Full load capacity%

Fu

ll lo

ad

kW

In

pu

t

Step unloading

RTAD unloading

Needlessly expended energy

Continuous capacity control

Improved control over water

and air temperature

Up to 5% savings on operating

costs versus stepped control


No overhauling during compressor

life time

Direct drive, low-speed

Low motor operating temperatures

A New Generation of Helirotor CompressorLow maintenance


Oil SeparationOptimum heat exchange efficiency

Refrigerant

and oil mix

Refrigerant

Oil

Maximizes oil separation: 99.5 %

of oil separated from refrigerant

Positioning and piping design

optimized on acoustics andvibrations


Condenser designAdvanced coil technology

Specific fin profile to balance heat

transfer, airflow and pressure drop

Integrated oil cooler and subcooler

Oil cooler

SubcoolerCondenser


Cranelled Blades FansBlade trailing edge treatment

New impeller blade trailing

edge geometry

50% turbulence energy reduction

Higher airflow

Lower sound level

Controlled

vortices

Reduction in

pressure losses


Minimizes energy consumption at

part load

Allows operation at lower condensing

pressure

Provides excellent stability &

control accuracy

Fast response

No additional solenoid valve

Electronic Expansion ValveSuperior refrigerant flow control


Dry expansion evaporator

Internally finned copper tubes

for superior efficiency

Baffle system ensuring

homogeneous water temperature

EvaporatorHeavy duty design


Intelligent controlAdaptive Control TM Logic

Logic enables corrective actions

to keep chiller safely on-line

making cold water where other

chillers would trip off

Te

mp

era

ture

Time

Trip point

Trane Adaptive

ControlTM


Intelligent ControlModular Architecture

Local Clear

LanguageDisplay

Electronic

Expansion Valve Control

Motor

CompressorStart &

Protection

Chiller

PlantManager

Inter Processor

CommunicationBuffer (Option)

Communication

Board and Setpoint Reset

(Option)

Remote Clear

LanguageDisplay(Option)

To BMS


Intelligent controlControl functions

Control & operation optimization:• Chilled water temp. control• Control of the fans

• Electronic expansion valve

Operating mode control:• Compressor start/stop logic• Load & unload logic of the compressors

• Low ambient start logic• Fast load adjustment• Start with warm water

Safety functions:• Welded contacts

• Water flow• Antifreeze

• Reverse rotation• Phase unbalance ...


Chilled Water Auxiliary

setpoint (with CSR Card)Remote On/Off

chiller or per circuit

Alarm indication

Running indication

Water

setpoint

Unit at full load

Current Limitation

setpoint (with CSR card)

Flexible controlRemote control capabilities

Ice making

(with CSR card)

Air temp.

Or

Evaporator T

Amps

Compressor Nominal Amps

Current limit

Time


Flexible controlUCM CLD

User-friendly display and keyboard

on front panel

Easy reading of operating status

Direct access to module configuration

menus

2 lines of 40 characters

16 selection keys


Adapted EfficiencyCoefficient of Performance

Different levels of COP to serve

either comfort cooling or industrial

applications

COP at full load following

Eurovent standards


Acoustical performanceReduced sound level

Compressor:

more material mass

ports resized

Piping: optimized design

Condenser fan:

crenellated blades

915 or 680 RPM


InstallationSingle power supply

Compressor 1

Fans

Control

Compressor 2


InstallationTight Operational Clearances

Smaller Physical Footprint

+ Tight Operational Clearance

= Less Space used on Jobsite


MaintenanceLow maintenance

Recommended maintenance

Cleaning condenser coils

as needed

Control of the chilled water

circuit

Required maintenance

Annual oil analysis to verify

system integrity


6th generation Helirotor compressor

Hi-tech Fans

Trane Adaptive ControlTM Control logic

COP adapted to application

RTAD: Concentration of intelligence,

High reliability.

Documents

RTAC product Presentation · RLC-CMS002-E4 © American Standard Companies, inc 2002 - All Rights Reserved Complete and Large Range... 4 versions from 260 to 480 kW Standard High