System overview
Head :Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â max. 50 m
Flow rate :                 max. 120 m³/h
Technical Data
Controller PSk2-21
- High efficiency solar pump controller
- Hybrid power (solar / grid / generator) support with LORENTZ
SmartSolution - Inputs for water meter, pressure sensors, digital switches
- Simple configuration with LORENTZ PumpScanner AndroidÂŒApp
- Onboard data logging and system monitoring
- Inbuilt applications for constant pressure, constant flow and daily
amount - Integrated Sun Sensor
- Active temperature management
- Integrated MPPT (Maximum Power Point Tracking)
Power :Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â max. 21 kW
Input voltage :Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â max. 850 V
Optimum Vmp** :Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â > 575 V
Motor current :Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â max. 33 A
Efficiency :Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â max. 98 %
Ambient temp. :                -30…50 °C
Enclosure class :Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â IP54
Motor AC DRIVE CS-F 15kW
- Highly efficient 3-phase AC motor
- Frequency:Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 25…51 Hz
Motor speed :Â Â Â Â Â Â Â Â Â Â Â 1 400…2 905 rpm
Power factor :Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 0,87
Insulation class :Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â F
Enclosure class :Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â IPX4
Pump End PE CS-F85-20
- Premium materials
- Optional: dry running protection
- Centrifugal pump
Pump Unit PUk2-21 CS-F85-20 (Motor, Pump End)
Water temperature :                     max. 70 °C
Suction head :Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â acc. to COMPASS sizing

Coupling 110mm
Franklin SVM 70/37
Male adapters 20 x25mm
Franklin FSM 0.55 400v
Female tee 20 x 20mm
KSB Etanorm 050-032-160.1
Lorentz PS2-1800 C-SJ1-25 solar borehole pump
Tsurumi KTZ 2-2,2-50 525V
Lorentz PS2-150 C-SJ5-8 solar borehole pump
Electromote 2.2kW Cast Iron Three Phase IE1 Motor Class H Insulation IP66 2-pole Foot mount
15mm-Plastic ball float valve
15mm Single union ball valve-Threaded 

