13 © STULZ SpA . – all rights reserved EN/39B/06.2018
SAL
ATTENTION
For any assistance or information concerning the unit described in this manual, knowledge of its
serial number is essential.
IP protection degree
INFORMATION
IP protection degree is the protection, from the outdoor environment, of the unit when installed
in its normal use.
The IP protection degree (according to EN 60529, considering the prescriptions of EN 60335) of
each part of STULZ SplitAir3 is:
• IPX4 of the external unit (SAO), the external unit is protected from harmful effects of splashing of
water against the enclosure from any direction.
• IPX0 of the internal unit (SSI), the internal unit is not protected against water (see picture below).
ATTENTION
When the internal unit is installed combined with the freecooling module and including an
external rainproof grille, the protection degree is IPX4, as described below.
• IPX4 of the freecooling module (SFC), when the module is installed with a suitable rainproof grille.
• IPX4 of the whole combination of: internal unit, freecooling module and rainproof grille. This
system is protected from harmful effects of splashing of water against the enclosure from any
direction (see picture below).
Internal unit
Outdoor
Shelter
Indoor
Internal unit
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