Disposal Of Packing Materials; Installation; Start-Up; Water Connection - ITT Lowara DLC Serie Installations- Und Bedienungsanleitungen

Do not lift the electric pump by the motor cable.
WARNING
When you receive the pump/electric pump, check the outside of the package for evident signs of damage. If the product bears
visible signs of damage, notify our distributor within 8 days from the delivery date.
4.3

Disposal of Packing Materials

I you cannot utilize the packing materials for other purposes, dispose of it according to the sorted waste disposal regulations
locally in force.
5.

Installation

The installation operations must be carried out by qualified and experienced personnel.
Use suitable equipment and protections. Observe the accident prevention regulations in force.
Always refer to the local and/or national regulations, legislation and codes in force relating to the selection of the installation site
and the water and power connections.
5.1.1 Positioning
The most common positioning methods use the lowering device for fixed installation, or the stand for movable or semi-fixed
installation (liquid transfer, draining of flooded excavations).
Make sure that no obstructions or obstacles prevent adequate submersion and ventilation for proper motor cooling. Make sure
there is adequate clearance around the pump for the maintenance operations.
Carefully observe the diagrams provided in section 10.5.
5.1.1.1 Anchoring (for version with lowering device for fixed installation)
Anchor the coupling foot of the lowering device securely to a concrete foundation using suitable bolts.
Please contact our Sales and Service Department if you need information regarding their number and size (diameter).
5.1.2 Selecting the delivery pipe and check valve
Use pipes suited to the maximum working pressure and flow rate of the pump.
Install a non-return valve in the pipe that connects to the public/private sewer. This will prevent the backflow of the liquid. If you
select a ball valve, check whether it is "sinking ball" (heavy) type or "floating ball" (lightweight) type, as the installation and
operating conditions change. Do not place the valve too close to the electric pump, as the flowing liquid moved by the pump
must be able to open the valve's shutter (in any case, refer to the manufacturer's instructions). Consider the flow resistance of
the pipes and check valve, if present. Always refer to the local and/or national codes, regulations and standards in force.
5.1.3 Selecting the electric control panel
The motors must be suitably protected against overload and short circuits.
Make sure that the panel's electric ratings match those of the electric pump. Improper combinations may
WARNING
cause problems and fail to guarantee the protection of the electric motor.
If you use thermal relays, we recommend those that are sensitive to phase failure.
Some electric pumps are equipped, as standard or upon request, with a thermal sensor (normally closed)
WARNING
placed in the motor. This sensor must be powered by the electrical panel with a voltage not exceeding
250 Vac and a current not exceeding 1.6 A. The sensor, when connected to a relay or contactor, makes
it possible to stop the electric pump when the motor overheats (probe open).
Some electric pumps are equipped, as standard or upon request, with a sensor designed to detect the
presence of water in the oil chamber. This sensor must be powered by the electrical panel via an
electronic module that detects the resistance variation. The module, connected to a relay or contactor,
stops the electric pump when water is detected in the oil. (
Avoid the possibility of dry running, i.e. the pump must not run without water inside it. Make sure that the
electric panel is equipped with a dry running protection system to which floats must be connected.
The DLGM electric pumps, without thermal sensor, come with a special protection panel equipped with a 1-meter-long power
cable with plug.
As for the other single-phase versions, make sure that the electric control panel is equipped with the run and start capacitors.
5.1.4 Selecting the float/s
Depending on the type of installation, the nature of the liquid and the national/local codes and regulations, you can select
between float switches with electromechanical control and those with multiple contacts.
Make sure that the characteristics of the float switch match those of the electric panel. Improper
WARNING
combinations may cause malfunctions.
Always refer to the local and/or national codes, regulations and standards in force.
6.

Start-up

6.1

Water connection

The water connections must be made by qualified installation technicians in compliance with the
regulations in force. In case of connection to the public/private sewer system, the regulations issued by
the competent local authorities (municipal, public utility company, ....) must be observed.
Do not lift or move the electric pump by the power cable or the delivery pipe.
information for installers
section 10.6).
information for installers
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