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9.2 Fresh air probe
The external probe allows to automatically change the unit set point according to the external enthalpy (temperature + humidity).
It is then possible to optimize the unit energy eciency.
Positioning
The sensor has not to be inuenced by factors that can false the reading (for ex. direct solar irradiation, exhaust air by fan or other sources,
contact with the unit structure or other sources of heat, accumulations of snow/ice), it has therefore to be placed in a protected place (possibly
to the north), for example in an attic, under a terrace and if it is on a free wall, provide a small roong.