Electrical Connections - Lowara TKS Series Instructions For Installation And Use Manual

CAUTION Operate with the power supply disconnected.
First of all, check the pre-charge of the diaphragm tank.
In the event of water supply with positive head (above-ground storage tank, water system):
Open all the valves in the unit, as well as any valves installed in the suction manifold.
Open a tap until the water flows out.
In the event of water supply with negative head (well, underground storage tank):
Open all the gate valves on the suction side and remove the fill plugs from the suction manifold
and pump bodies.
Fill the piping with water; when it starts to flow out re-insert the plug and continue filling through the
special holes provided in the pump bodies until the unit is fully charged. Then re-insert the pump
plugs.
8.

Electrical Connections

The salient characteristics of the electric panels for the units with GTKS20/...(teknospeed)
frequency converter are:
- Casing made of plastic material with IP 55 protection.
- Automatic thermal-magnetic switch for each single pump.
- Terminal board.
- Yellow/green ground terminal
Cable gland
-
- Level control module (SLD) "optional kit".
As regards the electrical connections, see the wiring diagram inside the panel.
Power supply line.
Ground the unit before making any other connections.
Make sure that the supply voltage corresponds to the voltage indicated in the pump and electric
panel rating plates.
Make sure that the supply cable can handle the rated current of the unit, and connect it to the
corresponding terminals in the electric panel. We recommend the use of a FROR 3G1.5 type
cable.
Cables, when visible, must be suitably protected.
The power line must be protected by means of fuses.
Connections on the electric panel.
Before making any other connections, ground the panel by inserting the ground conductor in the
yellow/green terminal (PE).
Connect the power supply cable (230 V single-phase) to the L – N terminals found inside the
electrical panel.
8
DANGER
RISK OF ELECTRIC
SHOCK
DANGER
WARNING