7596040 – MANUALE WO-20 EN 21052018 REV.1
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6.3
PRECHARGE OF EXPANSION TANK
For the precharge of expansion tank follow these steps:
Turn off the system by pressing the
button. Remove the power plug.
Empty the expansion tank completely, supplying water.
Remove the rear screws of the cover and move it forward. (fig. e)
Remove the cover. (fig. f)
At the rear of the machine find the inflation valve of the expansion tank. (fig. g)
With a manometer, check that the indicated pressure is ≥0.1 MPa.
If necessary, restore it with a compressor or a manual pump: proceed at intervals never
exceeding 0.2 MPa!
During the reactivation, which must take place with the tap open, there may be a water
leakage.
Close the machine by performing the reverse procedure.
Switch on the system by pressing the
which will be ready for use after 5 minutes.
Fig. e Fig. f Fig. g
Valvola