SystemAir KA HSI-2-2-S-R-50F-TB2-L2 - Commissioning and Maintenance; 3.1 General instructions

28 systemair
Preventing structure-borne noise
Anti-vibration elements or an anti-noise layer under the unit can help reduce the transmission of vibrations from the
unit to the load-bearing structure:
• Iftheunitistobeinstalledonaatoorwithoutspecialsoundinsulationrequirementsonthestructure,we
recommend placing rubber or elastomeric pads between the unit and the base.
• For sound insulation, compare the requirement with the sound power level of the unit (see data sheet) and
determine the necessary measures, which should be determined by an acoustic engineer.
Risk of injury
The anti-vibration elements or the anti-noise layer must not affect the safety of the construction of the device. Ensure
the following:
• Useasufcientnumberofanti-vibrationelementsandanti-noiselayersandinstallthemcorrectly,otherwisethe
base may slip.
• Notethatdifferentunitmodulesdifferinweight;thismustnotcauseanyheightdifferencesinthewholeunit.
3. COMMISSIONING AND MAINTENANCE
Caution
Theunitcommissioningmayonlybecarriedoutbyaqualiedprofessional.Beforestartinguptheair
handlingunit,checkalltheelectricalconnectionsandunitcontrolsettings.
3.1 General instructions
Before maintenance
• Thepowersupplymustbeswitchedoffcompletelyandtheserviceswitchmustbeswitchedoffandlocked.
• Due to the frequency converter, it is necessary to wait at least 15 minutes.
• Itisnecessarytocheckwhetherallrotatingpartsarestationary(fan,belts,rotaryheatexchanger,blinds).
• Itisnecessarytocheckwhetherthetemperatureintheheatexchangersandhydraulicsystemshasadaptedtothe
ambient temperature.
• ThePMmotorshaftmustbeblocked.Externalinuencesonmotorrotationgenerateanelectriccurrent.
• The unit must not be in an explosive atmosphere during service.
• Protectiveclothingandfootweararerequired(helmet,maskforchanginglters,glovesandshoes…).
• Allserviceaccessoriesarerequired:tools,serviceswitchlockkey…
• As the entire electrical installation is switched off during servicing, external, separate lighting is required.
• Aspecialkeyisrequiredtoopenandclosetheservicedoor.
After maintenance
• Clean any dirt from maintenance.
• Checkthatallmechanicalandelectricalcomponentsareinplaceandsecurelyfastened.
• Makesurethatnooneisinthedangerareaofthedeviceoritssurroundings.
• Makesureyouhaveremovedalltoolsorotherobjectsfromthedevice.
• Closetheservicedoorandlockthehandlelocks.
During maintenance
• Checktheconditionofthesection.Incaseofdirtorcorrosion,immediate
cleaning is required.
• Checkthegasketatthecontactofthepanelordoorandcasing.Ifthegasketis
damaged or detached, it must be completely removed, the surface cleaned and
gasketreplaced.