JMC Ventilation and Refrigeration Potato Storage and Onion Storage Experts
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Door Controllers::

JMC VR offers several different options for controlling doors and louvers in potato and onion storages. Door controllers are currently available in 3, 4, 5, and 8 door configurations. The door sequence is customizable when purchased and any sequence can easily be achieved. Also available are louver controllers. These controllers accept a 4-20 ma or a pulse signal. Conversion kits are available for most existing panel installations. Standard features include:

  • Two year warranty
  • Fused actuator outputs with indicators
  • UL listed and field tested
  • Isolated power and control circuitry
  • No Proprietary Parts



DC-8 door controller for large potato and onion installations


Additional information::

DC-3 (PDF)

DC-4 (PDF)

DC-8 (PDF)

  509-586-9893 |
Let us help you with all of your potato storage, onion storage and produce ventilation and refrigeration needs.
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