PP 45 HYI internal humidity sensor

ATTENTION: Unit damage/no function if the humidity sensor is installed incorrectly. Do not bend pins. Insert sensor up to stop in bush.

  1. Switch off the mains fuse and secure it against being switched on again.
  2. Carefully remove the outer frame of the RLS 45 K.
  3. Plug the PP 45 HYI internal humidity sensor into the I2C interface (arrow).
  4. Attach the outer frame. Ensure that the sensor opening is correctly positioned over the HYI and that the frame snaps into place.
  5. Start up the ventilation system and register the humidity sensor in the service menu, see setting parameters in the service menu.