systemair 57
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.Aftertheworkisdone,thesplittersarereturnedandthesectionisrestoredtoitsoriginalcondition.
Maintenance
Splittersandsectionmustbecheckedfordirt,damageandcorrosion.Incaseofdamageorsoiling,cleaningisrequired.
A vacuum cleaner can be used to clean dust and dirt.
3.9 Humidiers
3.9.1 Steam humidier
Caution
See also section 3.1 General instructions.
Thesteamusedforthesteamhumidiermustnotcontainanysubstancesharmfultohealth.Waterfor
steamproductionmustcorrespondatleasttothequalityofdrinkingwater.
Connection, commissioning and maintenance to be carried out according to the manufacturer‘s
instructions.
Use siphons resistant to medium of at least 100 °C.
Be sure to install a properly sized siphon 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
siphon.
Commissioning
The steam distributor is mounted into the air handling unit casing in such a manner so as to provide the required clear
spacearounditandtherequiredlengthoftheemptyhumidifyingchamberinthedirectionofairow,aswellasto
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
exceeds90%.
• Thesteamhumidiermayonlystartoperatingaftertheairowachievesappropriatevelocityandtemperature.
• Thesteamhumidiermuststopoperatingevenbeforethefanisstopped,orintheeventofaninterruptionofthe
airowduetoaninterruptionintheoperationoftheairhandlingunit,intheeventofrelativehumidityexceeding
90%orforanyotherreason.
Maintenance
Maintenance to be carried out according to the manufacturer’s instructions and maintenance schedule.