Series R™ Helical Rotary Chiller
Model RTWD
80 to 250 Tons

The Water-cooled Series R Helical Rotary Chiller - Model RTWD offers ease of installation, application flexibility, high reliability and improved energy efficiency due to its advanced design, low speed/direct drive compressor, and proven Series R performance. The Series R Model RTWD Helical Rotary chiller offers two efficiency levels that meet or exceed ASHRAE 90.1 efficiency guidelines.

The industrial-grade design is ideal for both industrial and commercial markets. The infinite unloading compressor, wide operating temperature range, advanced CH530 controls, and industry-leading efficiencies make this chiller the perfect choice for tight temperature control in almost any application.

Range of Applications

  • Low temperature process

  • Thermal storage/ice-making

  • Heat recovery

  • Water-to-water Heat PumpDry cooler


  • Series R Helical Rotary Chiller capacities range from 75-240 tons 60 Hz and 60-240 tons 50 Hz

  • Meets ASHRAE 90.1-2010 efficiency guidelines

  • Reduced refrigerant charge and efficiency improvements to help obtain LEED certification

  • Ability to generate up to 140°F leaving condenser water temperature for heat recovery applications

  • Reduced sensitivity to condenser water temperatures

  • Ability to operate in variable primary flow applications

  • Most units fit through standard single width door

  • Fork lift channels built into the base frame are available for better maneuverability

  • Factory testing helps ensure trouble-free start-up

  • Adaptive Control™ algorithms provide all unit control and safety functions in a proactive strategy

  • Time of day scheduling option to provide simplified unit level control

  • Up to 65kA SCR ratings

For Technical Specifications, please refer to the Catalog or Installation documents on the Literature tab.



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