Installation of the 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 frame of the RLS 45 K/O.
  4. Plug the humidity sensor PP 45 HYI into the I2C interface (arrow).
  5. Attach the frame of the control. Ensure that the sensor opening (hole in the frame) is positioned over the sensor and that the frame snaps into place.
  6. Put the ventilation system into operation. Register the humidity sensor in the Service mode setting parameters menu.

For installation of the PP 45 HYI in a PP 45 RC ventilation unit, see associated final installation kit instructions.