Installation Overview; Electrical Installation - Lorentz PS2-150 Manuel D'installation Et De Fonctionnement

Installation Overview

This installation overview is provided to familiarize you with the typical steps that are taken when installing a solar water
pumping system. Your particular installation may require the steps to be done in a different order. You should read the whole
manual before making your first installation.
WARNING – This installation overview does not substitute the detailed instructions given in this
manual. Read and follow the manual carefully to ensure reliable operation and long life of the
product and to avoid danger to health and life.
1. PV and Controller Installation
Please follow manufacturer instructions for PV installation.
Every PV installation must be equipped with a PV discon-
nect switch. Suitable switches are available from LORENTZ.
Install the controller close to the PV array in a shaded
location to minimize cable length on the input side.

2. Electrical Installation

1. Pump wiring: The ECDrive must be connected to the
terminals L1, L2, L3 and to the earth connector
the pcb. Observe rotation direction.
2. Accessories wiring: Connect a source low protector to
terminals 1 and 2 (required). Remote control switches must
be connected to terminals 3 and 4, water meters to termi-
nals 5 and 6, 4 –20 mA sensors to terminals 7 and 8 or 9
and 10, water sensors to 13, 14 and 15 and the SunSensor
module to terminals 16 and 17. Terminals 11 and 12 are
an output relay switch.
3. DC input wiring: Connect the positive terminal of the
PV array to +, the negative terminal to −. Observe max.
input voltage. If the controller is connected to a battery
then battery mode must be activated in PumpScanner.
4. Grounding: A protective earth connection must be
wired to the earth connector
3. Pump Installation
Submersible pumps: Lower the pump into the water
source with caution, use a safety rope.
Surface pumps: Install the surface pump on an adequate
foundation with sufficient pipe sizing to ensure efficient op-
eration. Fill the pump with clean water prior to starting it.
below
below the pcb.
Please refer to "DC Disconnect Switch" on page 17 for
more information on the requirements the PV disconnect
must meet.
For detailed information refer to "7.5 Mounting, Space and
Ventilation Requirements" on page 19.
For detailed information refer to "7.6.2 Pump Wiring" on
page 26.
For detailed information refer to "7.6.3 Pump Accessories
Wiring" on page 27.
For detailed information refer to "7.6.4 Input Wiring for
Solar-direct Systems" on page 28.
For detailed information refer to "7.6.6 Grounding" on
page 30.
For detailed information refer to "8.3 Submersible Pumps"
on page 34.
Depending on your pump system, refer to "8.4 CS-F Sur-
face Pumps" on page 39 or "8.3 Submersible Pumps"
on page 34 for detailed information.
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