As there are so many varied units with different mounting configurations, our certification does not cover this aspect, hence we do not provide fixings for air-con units – our recommendation is to bolt the units down to the mesh (with a piece of AVANT Anti-Vibration, Anti-Noise Technology pad between them) using a plate with a hole in it, below the mesh or to bolt through the mesh and cross beam, if the mounting foot of the units is directly above it.