4
k.4.1Checklist,relevantvalues.....................................................................................................33
k.4.1.1Checklistpriortostart‐up..................................................................................................34
k.4.1.2Switchonpower................................................................................................................34
k.5Descriptionoffunctions..............................................................................................................34
k.5.1Heatingcoilforhotwaterpreparedfortemperaturesensor(frostprotection).......................34
k.5.2DXcooling............................................................................................................................34
k.5.3Circulationpump,heating.....................................................................................................34
k.5.4Electricalheaterbattery.......................................................................................................34
k.5.4.1ControlofheatingcapacityconnectedtounitwithoutSystemaircontrolsystem................34
k.5.5Speedcontroloffans............................................................................................................35
k.5.5.1FrequencyconvertersinsidetheunitareIP20....................................................................35
k.5.5.2FrequencyconvertersontheunitareIP54.........................................................................35
k.5.6Pressure
transmitters...........................................................................................................35
k.5.7Dampermotors....................................................................................................................35
k.5.8Filterguards.........................................................................................................................35
k.6Commissioning...........................................................................................................................35
L.INFORMATIONABOUTTHERESIDUALRISKSTHATREMAINDESPITETHEINHERENT
SAFEDESIGNMEASURES,SAFEGUARDINGANDCOMPLEMENTARYPROTECTIVE
MEASURESADOPTED.............................................................................................................................35
l.1Unitcasing...................................................................................................................................35
l.1.1.Designofthemachinetomaketransportsafe......................................................................35
l.2Commonforallunitsections........................................................................................................36
l.2.1Riskcausedbysurfaces,edgesandcorners............................................................................36
l.3Commonforallunitsectionsbyinsufficientlighting....................................................................36
l.3.1Riskcausedbyinsufficient
lightinginsidesections..................................................................36
l.4DamperstypeDVA–DVB–DVM–DVP–BypassdampersinDVQ................................................36
l.4.1Riskcausedbymaintenanceandcleaningofdampers............................................................36
l.5AttenuatorstypeDVD..................................................................................................................36
l.5.1Riskcausedbymaintenanceandcleaningofattenuators.......................................................37
l.6FilterstypeDVG–DVF.................................................................................................................37
l.6.1Riskcausedbymissingchangeoffilters.................................................................................37
l.6.2Riskcausedbytheexecutionoffilterchange.........................................................................37
l.7PlugfanstypeDVE....................................................................................................................... 37
l.7.1Riskcausedbylightningstrike............................................................................................... 37
l.7.2.Riskcausedbypermanentmagnetmotor
.............................................................................38
l.7.3Riskofrotatingimpellercausedbystackeffect(chimneyeffect)............................................38
l.8BatteriesforheatingandcoolingtypeDVR–DVH–DVK–DVU ....................................................38
l.8.1Extremetemperatures‐heating............................................................................................38
l.8.2Extremetemperatures‐cooling.............................................................................................38
l.9HeatpumpunitstypeDVU...........................................................................................................
39
l.9.1Riskofhightemperature.......................................................................................................39
l.9.2Riskcausedbylightningstrike............................................................................................... 39
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