Wolf FGB-K Series Installation And Maintenance Instructions For Contractors page 47

• Check the system pressure again (info key 3) and top
up with water if required.
Please note:
During continuous operation, the heating circuit is
automatically vented via the high efficiency pump.
Filling the heating system via the filling facility
• Open the fill valve on the filling facility.
• Fill the heating circuit via the DHW circuit.
• Close the fill valve and test the entire appliance and
the component unions for tightness.
• Observe all information on venting the system (see
above)
Note that a pipe separator must be installed in
the DHW line during installation as specified in
EN 171.
3064458_201811
18. Filling the heating system / trap
Fig: Pressure indication on the control unit display
Fig: Filling facility integrated in the appliance on delivery
3
Info button
Fill vakve
47