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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.
Please refer to “DC Disconnect Switch” on page 17 for
more information on the requirements the PV disconnect
must meet.
Install the controller close to the PV array in a shaded
location to minimize cable length on the input side.
For detailed information refer to “7.5 Mounting, Space and
Ventilation Requirements” on page 19.
2. Electrical Installation
1. Pump wiring: The ECDRIVE must be connected to the
terminals L1, L2, L3 and to the earth connector
below
the pcb. Observe rotation direction.
For detailed information refer to “7.6.2 Pump Wiring” on
page 26.
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, 4–20mA 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.
For detailed information refer to “7.6.3 Pump Accessories
Wiring” on page 27.
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.
For detailed information refer to “7.6.4 Input Wiring for
Solar-direct Systems” on page 28.
4. Grounding: A protective earth connection must be
wired to the earth connector below the pcb.
For detailed information refer to “7.6.6 Grounding” on
page 30.
3. Pump Installation
Submersible pumps: Lower the pump into the water
source with caution, use a safety rope.
For detailed information refer to “8.3 Submersible Pumps”
on page 34.
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.
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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