How to install close-coupled pumps?
Installation diagrams

Practical connection diagrams that are used to install the single-phase  close coupled submersible pumps. Before purchasing it is important to check whether the condenser is integrated in the submersible pump or not. Submersible pumps can be installed with manual operation (switch or plug control) or automatic (command from presscontrol or other devices).

N.B.In each description it is specified where the condenser (capacitor) is located.



Common examples of installation of the 1x230 single-phase submersible pumps:

 

Sub pump with integrated capacitor
directly controlled by the electrical network

Sub pump with integrated capacitor
menaged by the pressure controller

 

 

Pump with integrated condenser/capacitor

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Diagram 1 -  integrated condenser : the submersible pump operates with the electric current. In this case, the pump is activated by plug, or via two-pole switch. Generally, this kind of system is used  to irrigate or to fill tanks in manual way.

 

Diagram 2 - integrated condenser : The presscontrol (also known as pressure controller) menages the submersible pump. This type of system is used to pressurize standard water systems: the pump came on with the faucet open and turned off with faucet off.
 

Schemes valid for Lowara, Dab, Ebara, Espa monobloc submersible pumps with float switch.



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Common examples of installation of 1x230 single-phase submersible pumps:

 

Sub pump with external condenser
menaged by the electrical network

Sub pump with external condenser
operates by pressure controller

 

 

Pump with external condenser 

 

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Diagram 3 - external condenser:  the submersible pump operates with the electric current. In this case, the pump is activated by plug, or via two-pole switch. Generally, this kind of system is used  to irrigate or to fill tanks in manual way.
 

 
Diagram 4 - external condenser: The presscontrol (also known as pressure controller) menages the submersible pump. This type of system is used to pressurize standard water systems: the pump came on with the faucet open and turned off with faucet off.

Scheme valid for Speroni, Euromatic, BBC, Pippohydro, Espa monobloc submersible pumps without float switch.


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Common examples of installation of single and three-phase submersible pumps:

Sub pump with external condenser
menaged by electrical network


For all single- (1x230) and three-phase (3x400) pumps



This scheme deals with single and three-phase pumps:

1x230 Single phase submersible pumps with integred condenser 

1x230 Single phase submersible pumps with external condenser 

3x400 Three-phase submersible pumps 
 

schema impianto di pompaggio sollevamento acqua con pompa sommersa adibita a riempimento serbatoio

 



Level and Drycontrol electrical control panels
 

This system deals with sub pump with electric float switch and (single-phase or three-phase) Level control-panel. The panel manages the pump starts and stops, to keeping full the water tank. To protect the pump from dry running you can use the Level Panel with level probes inside the well, or the Drycontrol electrical panel. In fact, with the Drycontrol panel the pump is protected from dry running, avoiding the use of level probes.

Attention: with the use of (single-phase or three-phase) Drycontrol electrical panels, the tank will always be filled by electric float switch.

 

Constant pressure - Frequency modulation

In order to have water with constant pressure (at home or in the garden), your system needs a variable frequency drive to vary the power according to the actual withdrawal of water. For this reason it is very important to choose the right one.


There are three differnt type of speed device:

1)MM single-phase/single-phase: V230 single-phase electricity supply and V230 single-phase pumps
2)MT single-phase/three-phase: V230 single-phase electricity supply and V230 three-phase pump
3)TT three-phase/three-phase: V400 three-phase electricity supply and V400 pump