2.
If the inlet pressure of the dia-
phragm expansion vessel is lower
than the static system pressure,
top up with nitrogen until the inlet
pressure is raised by 0.1 to 0.2 bar.
3.
Top up your heating system with
water and vent until the filling pres-
sure of a cool system is 0.1 to 0.2
bar higher than the inlet pressure
of the diaphragm expansion ves-
sel.
Permissible operating pressure: 3
bar
Checking all gas equipment for soundness at operating pres-
sure
Danger
Escaping gas leads to a risk of
explosions.
Check gas equipment for
soundness.
Further details regarding the individual steps
(cont.)
23
Initial start-up, inspection, maintenance
5692
569
GB
Summary of Contents for Vitodens 300
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