The GRC1 is a two position switch designed to enable the user to
manually select the desired ventilation systems flow rate and provide system

  • 2 separate ventilation flow rate options to select in 1 controller
  • Summer bypass indicator
  • Frost protection indicator
  • Service and Maintenance alert
  • Automatic switching back to low speed after a preset time period to avoid the unit accidentally being left in its high speed
  • Mounting Options – Recessed/Surface
  • Supply Voltage – Low voltage direct from MVHR units BMS connector

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Recommended cable

2 core cable, 0.5mm Max. (up to 15 metres)

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