For proper drainage of condensate from the unit, the siphon on the drain pan connection pipe must be installed in the AHU sections, where negative pressure occurs. There is no need to apply drain siphons in section with overpressure.
Drainage siphons in Ventus air handling units, are used for proper drainage of condensate, it is necessary to install a drainage siphon on the discharge spigot of the sump, in sections of the air hand..