GIA giatsu PREMIUM R32 Manuel De L'utilisateur Et D'installation page 58

Installation Instructions
Filter Installation
1. Put the buckle into the metal
sheet at the air inlet upside of the unit.
12k, 18k, 24k
filter
Buckle
Fig.27
36k
2. Put the elastic buckle into
the metal sheet at the air
inlet downside of the unit.
Elastic buckle
22
Fig.28