Condair DL - 4.2 Installation of the humidification unit

11Installation
4.2 Installation of the humidication unit
4.2.1 Positioning of the humidication unit
Usually, the design and dimensioning of the ventilation duct/AHU as well as the location of the humidi-
cation system Condair DL inside the duct are determined, recorded and set compulsory when planning
the entire system. Prior to installation, however, make sure the following criteria have been taken into
consideration:
– For safety reasons the Condair DL must be installed only in rooms provided with a oor
drain. If for some reason the Condair DL must be installed in a location without oor drain, it
is mandatory to provide a water tub with drain below the central unit and the duct wall feed
throughs and/or water sensors in the room/water tub to safely interrupt water supply in case
of leakage.
– In the area of the humidication unit the ventilation duct/AHU must be waterproof.
– Caution, fully demineralised water is aggressive! For this reason, all components located close
to the humidication unit (duct/AHU, fastening material, drain pipe, etc.) must be made of corrosion-
proof steel (minimum requirements according to DIN 1.4301) or plastic.
– For installation and maintenance of the humidication unit a inspection window and a sufciently
large maintenance door must be available in the duct/AHU.
Important: inspection windows must be constructed in such a manner that they can be cov-
ered, so that no light can fall into the duct section where the humidication unit is installed
(reduction of the growth of microorganisms)
– Important! An air lter must be installed at the air inlet of the humidication unit. The lter
must meet the quality standards F7 (EU7) or better.
– In case of low ambient temperature the duct must be insulated to prevent the moist air from condens-
ing inside the duct.
– If the system is equipped with a heater, make sure it is at least 0.5 m away from the humidication
unit.
– In order to avoid drops seeping over the ceramic elements, an even air ow over the full cross
section of the post-evaporation unit must be guaranteed. If necessary, rectiers or perforated plates
must be installed on the building side before the humidier.
If the air velocity in the duct before the post-evaporation unit (in relation to the humidication ef-
ciency) exceeds 3.0 m/s, booster elements must be installed.