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Opmerking
Er moet vorstbescherming tot
-
15
zijn.
Viessmann warmte
-
overdrachtsme-
dia is een kant
-
en
-
klaar mengsel op
ethyleenglycolbasis, tot –15 °C,
bevat inhibitoren voor de corrosiebe-
scherming.
3. Aansluitingen controleren op lek-
kage. Defecte of verschoven afdich-
tingsringen vervangen.
Opmerking voor de plaatsing van de
primaire pomp
Temperatuurverschil tussen aanvoer en
retour primair circuit: 3 K tot 5 K.
Secundaire zijde vullen en ontluchten
Ongeschikt vul- en suppletiewater kan
afzettingen en corrosie veroorzaken en
kan leiden tot beschadiging van de
installatie.
Met betrekking tot de kwaliteit en de hoe-
veelheid van het verwarmingswater, incl.
vul- en suppletiewater, geldt VDI 2035.
Verwarmingsinstallatie vóór het vullen
grondig spoelen.
Uitsluitend met water van tapwater-
kwaliteit vullen.
Vulwater met een waterhardheid van
meer dan 16,8 °dH (3,0 mol/m
3
) moet
onthard worden, bijvoorbeeld met een
kleine onthardingsinstallatie voor CV-
water (zie Viessmann prijslijst Vitoset).
!
Opgelet
Om schade aan het toestel te
voorkomen,
elektrische componenten op de
behuizingdeur tegen uittredende
vloeistof beschermen.
1. Indien aanwezig, de door de installa-
teur aangebrachte terugstroomblok-
kering openen.
2. Voordruk van het expansievat con-
troleren (zie pagina 66).
Eerste inbedrijfstelling, inspectie, onderhoud
Aanvullende info over de stappen
(vervolg)
5623 927 NL
64


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