KA IMO 2021 6 V2.1

58 systemair
3.8 Sound attenuator
Caution
See also section 3.1 General instructions.
Every single splitter can be removed from the section.
Commissioning
In the case of cabling or joining sections, the removable panel on the section can be removed and the splitters
removed.Aftertheworkisdone,thesplittersarereturnedandthesectionisrestoredtoitsoriginalcondition.
Maintenance
Splittersandsectionmustbecheckedfordirt,damageandcorrosion.Incaseofdamageorsoiling,cleaningisrequired.
A vacuum cleaner can be used to clean dust and dirt.
3.9 Humidiers
3.9.1 Steam humidier
Caution
See also section 3.1 General instructions.
Thesteamusedforthesteamhumidiermustnotcontainanysubstancesharmfultohealth.Waterfor
steamproductionmustcorrespondatleasttothequalityofdrinkingwater.
Connection, commissioning and maintenance to be carried out according to the manufacturer‘s
instructions.
Use syphons resistant to medium of at least 100 °C.
Be sure to install a properly sized syphon on the drain pipe to collect and drain the condensate.
Instructions for the construction, installation and connection are given in section 2.3.5 – Connection of
syphon.
Commissioning
The steam distributor is mounted into the air handling unit casing in such a manner so as to provide the required clear
spacearounditandtherequiredlengthoftheemptyhumidifyingchamberinthedirectionofairow,aswellasto
ensure the uniform distribution of steam across the entire air handling unit cross section.
• The air handling unit control system must ensure that the relative humidity within the air handling system never
exceeds90%.
• Thesteamhumidiermayonlystartoperatingaftertheairowachievesappropriatevelocityandtemperature.
• Thesteamhumidiermuststopoperatingevenbeforethefanisstopped,orintheeventofaninterruptionofthe
airowduetoaninterruptionintheoperationoftheairhandlingunit,intheeventofrelativehumidityexceeding
90%orforanyotherreason.
Maintenance
Maintenance to be carried out according to the manufacturer’s instructions and maintenance schedule.