KA IMO 2021 6 V2.1

28 systemair
Connection of electrical installations with quick connectors between moduls
Beforemechanicallyconnectingthedevicehousingtothefactory-ttedelectricalcontrolcabinet,controlsystem
elementsandwiring,connecttheelectricalcablesandwiresusingthequickconnectors.Allconnectorswherethe
connectorsneedtobeconnectedaremarkedwithasticker.
All cables, wires and also connectors are numbered. Connect the male and female part of the connector with the same
number.
In the case of the unit with a factory-made electrical control cabinet, which is intended for independent, separate
installation and the elements of the control system are installed and electrically connected in the factory, all cables or
conductors are connected to terminals in a plastic electrical distribution cabinet located on the outside of the housing.
Allterminalsareappropriatelymarkedforconnectiontoanelectricalcontrolcabinet.Priortothemechanicalconnection
of the supply units, it is also necessary to connect the electrical cables and wires at the joints of the supply units with
thehelpofquickconnectors.
2.3.7 Vibration and structure-borne noise
Reductionofvibrationtransmissiontothebuildingispossiblebyconnectingthedevicetotheductnetworkviaexible
connections and by placing the device on appropriate vibration isolators.
Tomitigatestructuralnoise,werecommendusingrubberoranelastomericpadsunderthedevice.Tokeepunitproperly
allignedandworking,carefullychecktheairconditioningalignment(openingandclosingthedoor,connectingthe
modules).
Caution
We recommend that the anti-vibration pads, including the material and layout plan, are selected and
determined through a professional company.
Preventing of structure-borne noise
Anti-vibration elements or 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, advised to be determined by the 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.