Submerged Installation On A Support Base; Electrical Connection - DAB FK Série Instructions Pour L'installation Et La Maintenance

the skid-flange in the guide pipes.
- When it arrives at the bottom, the electropump will automatically connect to the support foot.
The hook of lifting rope or chain must be in line with the center of gravity of pump.
-
Secure the extremities of rope or chain to the upper bracket located at the edge of the pit.
-
- Dispose the electric cables avoiding bends and deflections and paying attention that relevant terminals are not in contact with
water.
The correct fixed installation must include installation of a non-return valve.
The guide rails must not have any axial play as this would cause noise during pump operation.
During positioning of the pump, air may remain blocked inside the pump body. The air may
be removed from the pump body by installing the pump after having removed the cap of the
vent hole positioned on the side of the pump. (Fig. 6).
Attention, the vent hole is on the side opposite the oil filling holes.
5.2

Submerged installation on a support base

Delivery pipe must have diameter not inferior to the pump inlet.
When using a flexible pipe , it is advisable a reinforced pipe with metallic spiral which maintains the section unchanged even in presence
of bends.
The eventual foot valve and gate valve must be assembled at a distance of approx 50 ÷ 200 cm. in a section of metallic pipe (rigid).
Special attention should be paid to the positioning of electric cables in order to avoid possible bending, pressing, lifting and that the same
are accidentaly sucked by the pump.
The free end of the cable must not be submerged, as water may penetrate through the cable into the motor.
Fig. 7 Submerged installation on a support base

6. ELECTRICAL CONNECTION

Attention: always respect the safety regulations!
Electrical installation must be carried out by an expert, authorised electrician, who takes on all responsibility and
respects the regulations in force.
The system must be correctly and safely earthed as required by the regulations in force.
The control panel and respective electrical equipment, when contemplated, must be of a type approved by the safety
regulations in force. Instruments and components of the panel must be of an adequate capacity and quality to maintain
reliable operation over time.
In potentially explosive environments, the electrical connection and the control panel must be provided with
explosion-proof protection.
The line voltage may change when the electropump is started. The line voltage may undergo variations depending on other
devices connected to it and on the quality of the line.
ENGLISH
Fig. 8
23
Venting hole
Fig. 6
Oil filling
holes