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Subject to change without notice | 83056600dUK – Translation of the original operating manual | ait-deutschland GmbH
7.4 Vent the circulation pump of
the heat source
The front panel of the module box is unscrewed.
NOTE
The figure shows the unit variant with cooling.
In the unit variant without cooling the circula-
tion pump is located in the same place.
1. Place vessel for collecting discharging liquid un-
der the outlet.
2. Undo screw-on cap in the middle of the circula-
tion pump.
NOTE
The hose connectors are not part of the
scope of delivery with all KFE ball valves.
3. Wait until liquid is discharged uniformly.
4.
Screw the cap back on tightly.
5. Dispose of collected liquid according to the local
regulations.
6. Set system pressure to 1 bar.
7. Screw the front panel of the module box.
7.5
Flush and fill the heating and
domestic hot water charging
circuit
Drain pipe of the safety valve is connected.
The front panel of the module box is unscrewed.
►
Ensure that the set pressure of the safety valve is
not exceeded.
1.
Pull the U-clip (2) off the floor of the valve mo
-
tor (1).
2.
Pull the valve motor carefully upwards and off the
3-way changeover valve (3).
3. Turn the spindle of the 3-way changeover valve so
that the rounded side of the spindle points in the
direction of marking A of the connections of the
3-way changeover valve.
A
B
4. Flush the domestic hot water charging circuit for
approx. 1 minute.
5. Turn the spindle so that the rounded side of the
spindle points in the direction of marking B of the
connections of the 3-way changeover valve.
6. Flush heating circuit thoroughly, until no more air
is discharged.
