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Dry-O-Tron DM Series

This product line is designed for environments in which humidity can be effectively controlled by ventilation.

The Dry-O-Tron DM Series enjoys all the technology, quality and design innovations of our mechanical refrigeration product lines, but without the compressors.

Our Dry-O-Tron DM Series of natatorium ventilation units are designed from the ground up to deliver the same outstanding performance as our industry-leading mechanical refrigeration systems. We’ve applied years of natatorium engineering expertise to create the lightest, most compact, most robust and corrosion resistant equipment possible. We’ve also used our advanced, proprietary control technologies to ensure it delivers the best room conditions and energy efficiency available.

Non-Compressorized Solutions

For indoor pools in dry temperate climates, using dry outside air to dehumidify makes economic sense. So does using our Dry-O-Tron DM Series to get the job done right, with quality, efficiency and reliability you can count on.

  • Superior quality engineering and components
  • State-of-the-art control technology
  • Simplified compressor-less design

Our Dry-O-Tron DM Series is also designed to integrate with and maximize performance using the Paddock Evacuator chloramine removal system.


  • Heat pipe with frost control enables exhaust air heat recovery for pre-heating of cold outdoor air when applicable, with up to 65% efficiency
  • All units ship as a single piece – no site assembly required
  • The industry’s most compact and lightweight cabinet for both indoor and outdoor installations
  • Modulating control of outdoor air flow to ensure best possible space conditions while using the least amount of energy
  • Vision 2.0 Internet monitoring and control as a standard feature
  • SupervisAire control system
    • Sophisticated touch screen operator panel
    • Remote Operator panel can be mounted up to 1000 feet away
  • Direct drive backward inclined plenum fans for supply and exhaust
    • Higher static pressures, quieter operation, greater energy efficiency
    • VFD enables simple balancing of supply air as well as automatic outdoor air flow modulation
  • Two-sided service access for tight installations
  • Multiple supply air connection options for maximum installation flexibility
  • Durable two-inch, double wall construction, rain-guards over the doors, roof curb or slab design
  • Auxiliary air heating: hot water, electric, gas.
  • Can be equipped with chilled water coil for comfort cooling or supplemental dehumidification for facilities where chilled water is available.


  • Gas furnace or hot water coil as integral packaged space heating options.
  • Factory-provided chilled water coil for comfort cooling or supplemental dehumidification.


  • All coils fully-coated for ultimate corrosion protection.
  • Durable, two-inch, double-wall cabinet construction protects unit from elements when installed outdoors.
  • Direct-drive VFD fans — no belts to adjust or replace!
    • Variable outdoor airflow to suit space needs while keeping energy costs as low as possible.