Trane Comprehensive Guide to RTHD Chiller Features, Benefits, and Performance
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Features and Benefits

State-of-the-Art, Precision Control

•Microprocessor-based CH530 controls monitor and maintain optimal operation of the chiller and its associated sensors, actuators, relays, and switches, all of which are factory-assembled and extensively tested.

•Easy interface with computers hosting Tracer Summit™ building automation/ energy management systems allows the operator to efficiently optimize comfort system performance and minimize operating costs.

•PID (proportional integral derivative) control strategy ensures stable, efficient chilled water temperature control, maintaining +/- 1°F (0.56°C) control by proactively reacting to instantaneous load changes of up to 50 percent.

•Adaptive Control™ attempts to maintain chiller operation under adverse conditions, when many other chillers might simply shut down.

•Easy-to-use operator interface displays all operating and safety messages, with complete diagnostics information, on a

highly readable panel with a scrolling touch-screen display.

•The RTHD features a complete range of chiller safety controls.

•Over 120 diagnostic and operating points are available, with standard displays including chiller current draw, condenser pressure, and evaporator pressure.

Reliability and Ease of Maintenance

•Direct drive, low-speed compressor – a simple design with only three moving parts – provides maximum efficiency, high reliability, and low maintenance requirements.

•Electronic expansion valve, with fewer moving parts than alternative valve designs, offers highly reliable operation.

•Suction gas-cooled motor stays uniformly cool at lower temperatures for longer motor life.

•TheTrane helical rotary compressor is a proven design resulting from years of research and thousands of test hours, including extensive testing under extraordinarily severe operating conditions.

•Trane is the world’s largest manufacturer of large helical rotary compressors, with tens of thousands of commercial and industrial installations worldwide demonstrating a reliability rate of greater than 99 percent in the first year of operation.

Operating and Life Cycle

Cost-Effectiveness

•Electronic expansion valve enables exceptionally tight temperature control and extremely low superheat, resulting in more efficient full-load and part-load operation than previously available.

•Precise compressor rotor tip clearance ensures optimal efficiency.

•Condenser and evaporator tubes use the latest heat transfer technology for increased efficiency.

•The RTHD includes standard electrical demand limiting.

•Chilled water reset based on return water temperature is standard.

•High compressor lift capabilities and tight chilled water temperature control allow highly efficient system design with minimal operational concerns.

Design capabilities include:

•variable primary flow;

•series chiller arrangements for evaporator and/or condenser;

•low evaporator and condenser flow.

RLC-PRC020-EN

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Contents Series R Helical Rotary Liquid Chillers American Standard Inc. All rights reserved IntroductionContents ApplicationVersatility and High Performance Features and BenefitsSimple, Economical Installation State-of-the-Art, Precision Control Reliability and Ease of MaintenanceOperating and Life Cycle Cost-Effectiveness Design capabilities includeOptions Ice Making Control ChilledWater Reset Outdoor Air TemperatureProgrammable Relays Condenser-RegulatingValve ControlControls Additional Display Features IncludeSwift Emergency Response Energy EfficiencyKeeping Operators Informed Variable Evaporator Flow and Short EvaporatorWater Loops Application ConsiderationsAcoustic Considerations Water TreatmentWater Pumps Fouling Factors PerformancePart Load Performance System ConsiderationsElectrical DataTables Unit Performance with Fluid Media OtherThanWaterEvaporator and Condenser Pressure Drop RTH Model NomenclatureDigit 28 Condenser Leaving Water Temperature General Data General DataNominal Data Minimum/Maximum Evaporator Flow Rates Liters/Second Minimum/Maximum Evaporator Flow Rates Gallons/MinuteMinimum/Maximum Condenser Flow Rates Gallons/Minute Minimum/Maximum Condenser Flow Rates Liters/SecondMinimum/Maximum Condenser Flow Rates GPM Minimum/Maximum Evaporator Flow Rates GPMCompressor Motor Electrical Data 50 Hertz Electrical Data ConnectionsCompressor Motor Electrical Data 60 Hertz Electrical Data and Connections Electrical Data and Connections OperatingWeight ShippingWeight Code Lbs Dimensions WeightsShipping and Operating Weights BBB Configuration Front 36 914 mm Back Either End Other End BCD ConfigurationCDE, DDE, EDE Configuration CEF Configuration CFF, DFF, EFF Configuration DGG, EGG Configuration Mechanical Specifications ConversionTable RLC-PRC020-EN File Number PL-RF-RLC-000-PRC020-EN-0606 Literature Order NumberSupersedes RLC-PRC020-EN-00406 Stocking Location Inland

RTHD specifications

The Trane RTHD is a highly efficient and innovative HVAC solution designed for commercial and industrial applications. With a focus on reliability, performance, and energy efficiency, the RTHD series offers a wide range of features that set it apart from conventional heating and cooling systems.

One of the standout characteristics of the Trane RTHD is its robust construction. Built to withstand the rigors of daily use in demanding environments, the unit boasts a durable and weather-resistant cabinet. This design not only ensures longevity but also helps protect internal components from external elements.

Energy efficiency is at the forefront of the RTHD's design philosophy. The unit utilizes advanced technologies such as Variable Frequency Drive (VFD) for its compressor and fans. This allows for precise adjustment of the cooling and heating output, optimizing energy consumption based on real-time demand. As a result, the RTHD can achieve impressive Seasonal Energy Efficiency Ratios (SEER) and Heating Seasonal Performance Factors (HSPF), making it an environmentally friendly choice.

Another key feature of the RTHD is its compatibility with various control systems. The unit supports Trane's advanced control technology, enabling integration with building management systems for enhanced monitoring and operational efficiency. This capability allows facility managers to leverage data-driven insights to optimize performance and maintenance schedules.

The RTHD also incorporates innovative sound-reducing technologies, which ensure quiet operation, a significant consideration for settings where noise reduction is essential. Features such as acoustic insulation and strategically designed fan blades help minimize sound levels, making the RTHD suitable for a variety of commercial environments.

Ease of maintenance is another important aspect of the Trane RTHD. The design includes accessible components for quick servicing, minimizing downtime and overall maintenance costs. Additionally, Trane provides comprehensive support and resources to ensure that technicians can efficiently maintain and troubleshoot the system.

In summary, the Trane RTHD is a leading-edge HVAC solution that combines durability, energy efficiency, advanced control options, and quiet operation. With its range of features and technologies, it is well-equipped to meet the demands of modern commercial and industrial spaces, solidifying its reputation as a trusted choice in the HVAC market. Whether for new installations or upgrades, the RTHD delivers reliability and performance that customers can depend on for years to come.
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