A New Generation of Helirotor Compressor

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Series RTM
Concentration of intelligence,
High reliability.
RLC-CMS002-E4
© American Standard Companies, inc 2002 - All Rights Reserved
RTAD Liquid Chillers
 A concentrate of TRANE
Technology
 Based on experience from
thousands of references
 In a very compact design
RLC-CMS002-E4
© American Standard Companies, inc 2002 - All Rights Reserved
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
RLC-CMS002-E4
© American Standard Companies, inc 2002 - All Rights Reserved
Wide application range
Year round operation
Ambient Air Temperature
Standard
Ambient
RLC-CMS002-E4
High
Ambient
Wide
Ambient
Low
Ambient
© American Standard Companies, inc 2002 - All Rights Reserved
Water Temperature
A Concentrate of TRANE Technology
Crenellated
Blades
Fans
Adaptive
Control
Advanced
Coil
Technology
Electronic
Expansion
Valve
Optimized Oil
Separation
New
Helirotor
Compressor
RLC-CMS002-E4
© American Standard Companies, inc 2002 - All Rights Reserved
A New Generation of Helirotor Compressor
World ’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
RLC-CMS002-E4
© American Standard Companies, inc 2002 - All Rights Reserved
A New Generation of Helirotor Compressor
World ’s most reliable compressor
 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 chiller
lifecycle
 Mounted on isolators
RLC-CMS002-E4
© American Standard Companies, inc 2002 - All Rights Reserved
A New Generation of Helirotor Compressor
World ’s most reliable compressor
 High capacity oil filter
 One of the smallest oil charge
of the market
 Only 5 to 11 liters per compressor
RLC-CMS002-E4
© American Standard Companies, inc 2002 - All Rights Reserved
A New Generation of Helirotor Compressor
 Continuous capacity control
 Improved control over water
and air temperature
 Up to 5% savings on operating
costs versus stepped control
% Full load kW Input
Exact load matching
% Full load capacity
Step unloading
RTAD unloading
Needlessly expended energy
RLC-CMS002-E4
© American Standard Companies, inc 2002 - All Rights Reserved
A New Generation of Helirotor Compressor
Low maintenance
 No overhauling during compressor
life time
 Direct drive, low-speed
 Low motor operating temperatures
RLC-CMS002-E4
© American Standard Companies, inc 2002 - All Rights Reserved
Oil Separation
Optimum heat exchange efficiency
Refrigerant
 Maximizes oil separation: 99.5 %
of oil separated from refrigerant
Refrigerant
and oil mix
 Positioning and piping design
optimized on acoustics and
vibrations
Oil
RLC-CMS002-E4
© American Standard Companies, inc 2002 - All Rights Reserved
Condenser design
Advanced coil technology
Oil cooler
 Specific fin profile to balance heat
transfer, airflow and pressure drop
 Integrated oil cooler and subcooler
Condenser
RLC-CMS002-E4
© American Standard Companies, inc 2002 - All Rights Reserved
Subcooler
Cranelled Blades Fans
Blade trailing edge treatment
Controlled
vortices
 New impeller blade trailing
edge geometry
 50% turbulence energy reduction
 Higher airflow
 Lower sound level
Reduction in
pressure losses
RLC-CMS002-E4
© American Standard Companies, inc 2002 - All Rights Reserved
Electronic Expansion Valve
Superior refrigerant flow control
 Minimizes energy consumption at
part load
 Allows operation at lower condensing
pressure
 Provides excellent stability &
control accuracy
 Fast response
 No additional solenoid valve
RLC-CMS002-E4
© American Standard Companies, inc 2002 - All Rights Reserved
Evaporator
Heavy duty design
 Dry expansion evaporator
 Internally finned copper tubes
for superior efficiency
 Baffle system ensuring
homogeneous water temperature
RLC-CMS002-E4
© American Standard Companies, inc 2002 - All Rights Reserved
Intelligent control
Adaptive Control TM Logic
Temperature
Trip point
Logic enables corrective actions
to keep chiller safely on-line
making cold water where other
chillers would trip off
Trane Adaptive
ControlTM
Time
RLC-CMS002-E4
© American Standard Companies, inc 2002 - All Rights Reserved
Intelligent Control
Modular Architecture
Chiller
Plant
Manager
Local Clear
Language
Display
Motor
Compressor
Start &
Protection
Remote Clear
Language
Display
(Option)
Electronic
Expansion
Valve Control
Inter Processor
Communication
Buffer (Option)
RLC-CMS002-E4
Communication
Board and
Setpoint Reset
(Option)
© American Standard Companies, inc 2002 - All Rights Reserved
To BMS
Intelligent control
Control 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 ...
RLC-CMS002-E4
© American Standard Companies, inc 2002 - All Rights Reserved
Flexible control
Remote control capabilities
Chilled Water Auxiliary
setpoint (with CSR Card)
Remote On/Off
chiller or per circuit
Water
setpoint
Alarm indication
Running indication
Unit at full load
Air temp.
Or
Evaporator T
Ice making
(with CSR card)
Amps
Compressor Nominal Amps
Current limit
Current Limitation
setpoint (with CSR card)
Time
RLC-CMS002-E4
© American Standard Companies, inc 2002 - All Rights Reserved
Flexible control
UCM 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
RLC-CMS002-E4
© American Standard Companies, inc 2002 - All Rights Reserved
Adapted Efficiency
Coefficient of Performance
Different levels of COP to serve
either comfort cooling or industrial
applications
COP at full load following
Eurovent standards
RLC-CMS002-E4
© American Standard Companies, inc 2002 - All Rights Reserved
Acoustical performance
Reduced sound level
 Compressor:
 more material mass
 ports resized
 Piping:
 optimized design
 Condenser fan:
 crenellated blades
 915 or 680 RPM
RLC-CMS002-E4
© American Standard Companies, inc 2002 - All Rights Reserved
Installation
Single power supply
Fans
Compressor 1
Compressor 2
Control
RLC-CMS002-E4
© American Standard Companies, inc 2002 - All Rights Reserved
Installation
Tight Operational Clearances
Smaller Physical Footprint
+ Tight Operational Clearance
= Less Space used on Jobsite
RLC-CMS002-E4
© American Standard Companies, inc 2002 - All Rights Reserved
Maintenance
Low maintenance
 Recommended maintenance
 Cleaning condenser coils
as needed
 Control of the chilled water
circuit
 Required maintenance
 Annual oil analysis to verify
system integrity
RLC-CMS002-E4
© American Standard Companies, inc 2002 - All Rights Reserved
RTAD: Concentration of intelligence,
High reliability.
 6th generation Helirotor compressor
 Hi-tech Fans
 Trane Adaptive ControlTM Control logic
 COP adapted to application
RLC-CMS002-E4
© American Standard Companies, inc 2002 - All Rights Reserved
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