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Montage- en bedieningsrichtlijnen
Gascondensatieketel WTC-GB 120 … 300-A
7 Inbedrijfstelling
83251707 1/2020-08 La 63-124
7.1.2 Gasaansluitdruk controleren
Aansluitdruk controleren
GEVAAR
Explosiegevaar door te hoge gasaansluitdruk
Het overschrijden van de maximale aansluitdruk kan de armatuur vernietigen en tot
explosie leiden.
Gasaansluitdruk controleren.
Schroef op meetpuntPe van het gascombiventiel openen [hfst.7.1.1].
Drukmeettoestel aansluiten.
Gaskogelkraan langzaam openen en daarbij de drukstijging observeren.
Als de aansluitdruk volgende waarde overschrijdt:
WTC 120 60 mbar
WTC 170 … WTC 300 100 mbar
Gaskogelkraan onmiddellijk sluiten.
Installatie niet in bedrijf stellen.
Gasmaatschappij verwittigen.
Evt. gasdrukregelaar installeren.
GEVAAR
Explosiegevaar door vrijkomend gas
Ondeskundig uitgevoerde werken kunnen tot gaslekken en ontploffingen leiden.
Na de werken op het gascombiventiel, schroef aan het meetpunt sluiten en op
dichtheid controleren.
Schroef op meetpunt Pe weer sluiten (draaimoment2Nm).
Dichtheid van het meetpunt controleren.
63


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