Operation with speed controller

Only ERV 120 and ERV 150!

The fan will stop and have functional problems if the output voltage on the speed controller is too low.

Observe information in the speed controller operating instructions. Always set the minimum speed on the speed controller so that the motor starts up again after a power failure.

  1. STX speed controller from the Maico range of accessories.

The technology used in the phase angle controller may cause humming noises in the lower speed range.