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Beschikbare talen
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9.4 - Motor shaft
The electronic control of the system ensures smooth starts so as to avoid excessive stress
on the mechanical parts and thus prolong the life of the product. In exceptional cases
this characteristic could cause problems in starting the pump: after a period of inactivity,
perhaps with the system drained, the salts dissolved in the water could have settled and
formed calcification between the moving part (motor shaft) and the fixed part of the pump,
thus increasing the resistance on starting. In this case it may be sufficient to help the motor
shaft by hand to detach itself from the calcifications. In this system the operation is possible
because access to the motor shaft from outside is guaranteed and a groove is provided at
the end of the shaft. Proceed as follows:
1. remove the cover of the technical compartment (fig.1 Face A);
2. lift the rubber cover of the motor shaft access cap (fig. 22);
3. using a 10mm hexagonal key, remove the motor shaft access cap (fig. 22);
4. insert a straight tip screwdriver in the groove on the motor shaft and manoeuvre, turn-
ing in 2 directions (fig. 22);
5. if it is turning freely the system can be started, after having replaced the cap and cover
that have been removed;
6. if rotation is blocked and it cannot be removed by hand, call the assistance service.
9.5 - Expansion Vessel
See paragraph 1.2 for the operations to check and adjust the air pressure in the expansion
vessel and to replace it if it is broken.
To access the valve of the expansion vessel, proceed as follows:
Figure 22
1. remove the access door to the special maintenance compartment (Fig.1 Face F)
disengaging the 2 fixing screws with the accessory tool. It is advisable not to remove
the screws completely, so that you can used them to extract the door. Take care
not to drop the screws inside the system once you have removed the door (fig. 23);
2. slip the rubber cap off the valve or the expansion vessel (fig. 23);
3. regulate the valve as indicated in paragraph 1.2 (fig. 23);
4. reposition the rubber cap (fig. 23);
5. reposition the door and tighten the 2 screws (fig. 23).
GB
ENGLISH
Figura 23
66
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