Checking The Operating Pressure (Sealed Systems); Checking The Fill Level (Open Systems) - Buderus Logano GE615 Installation And Maintenance Instructions Manual

7
Heating system inspection and maintenance
7.4.1 Checking the operating pressure (sealed
systems)
On sealed heating systems the pressure gauge needle
must be within the green field.
Ensure that the red pressure gauge needle is set to the
required operating pressure.
Create an operating pressure (overpressure)
of at least 1 bar.
z Check the heating system operating pressure.
The operating pressure is too low if the pressure gauge
needle indicates below the green field. The system needs
to be topped up with water.
z Top up with water until the desired operating pressure
is reached.
z Vent the heating system during filling.
7.4.2

Checking the fill level (open systems)

In open systems, the hydrometer needle must lie within
the red field.
z Check that the hydrometer needle is within the red
field.
z Top up with water if the hydrometer needle is below the
red field.
50
Fig 66 Pressure gauge for sealed systems
1
2
3
V
Fig 67 Hydrometer for open systems
1
2
3
Logano GE615 - We reserve the right to make any changes due to technical modifications.
Red needle
Pressure gauge needle
Green field
Hydrometer needle
Green needle
Red field
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