Hi all,

I am facing the condensation problem on the surface of the 3 slot linear diffuser grille. The reading taken as showed below:

Room air dry bulb temperature : 22'C
Room air wet bulb temperature : 17.5'C

Supply air dry bulb temperature : 16'C
Supply air wet bulb temperature : 14'C

Ceiling air dry bulb temperature : 24.5'C
Ceiling air wet bulb temperature : 18'C

The aircond system installed for the building is a ceiling return system.

Who can give advise?

Thank you

Eddy