1. Introduction CSE SOL W SRS1 T Solar Pump Station is fitted with a solar pump of the latest generation that permits smooth flow control through PWM signal and sends information on the actual flow rate to the controller that shows the value on its display. The complicated setting of the right flow rate is not needed, the Pump Station keeps adjusting it automatically, depending on the actual solar radiation.
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3. Data for the Pump Station and Accessories Data for CSE SOL W SRS1 T Pump Station Max. fluid working temperature Max. working pressure Min. system pressure 1.3 bar with the pump stopped Flow rate measurement range* 2 - 20 l/min Heat source switching potential-free contact (max.
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Pump Station Pressure Drop Graph 4. Pump Station Components BALL VALVE SOLAR CIRCULATION PUMP NON-RETURN VALVE FILL/DRAIN HOSE SOCKET BALL VALVE WITH T-BRANCHE FOR SAFETY ASSY THERMOMETER (IN INSULATION UPPER PART) PRESSURE GAUGE EXPANSION VESSEL CONNECTION POINT, ¾” M 6 BAR SAFETY VALVE FILLING BALL VALVE 10 - SPANNER FOR BALL VALVES...
4.1 Non-return Valve The non-return valve prevents the tank from being cooled down by gravity circulation during periods of no sunshine. It is located between the ball valves so it can be removed and cleaned without the need to drain solar fluid from the entire solar circuit. When the red mark is on the left-hand side, the non-return valve is set to normal operation position.
6. Installation Options The solar pump station is designed to be installed on a wall or on a tank. There are two installation openings in the insulation rear part. The lower one is accessible only after the electronic controller is removed from the insulation rear part (see fig.).
Variant with a gas boiler R1 ... relay S1 ... solar collector sensor S2 ... solar consumer sensor 230 V AC,50 Hz 230 V AC,50 Hz 7.3 Hydraulic Variants...
8. Graphic Operation Signals and Performance Curves of the Pump Pump Operation Graphic Signals LED SIGNALS STATE DESCRIPTION AND POSSIBLE FAULT REASONS 1) pump is running in trouble-free operation GREEN IS LIT 1) rotor is blocked RED IS LIT 2) electric motor winding defect 1) power supply lower/higher than 230 V 2) electric short circuit in pump BLINKING RED...
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Performance Curves for Para ST 25/7-50/iPWM2 Pump 12 15 18 21 24 27 30 33 36 39 42 45 48 51 Q [l/min] 4700 4200 3700 3200 2700 2200 1700 1200 12 15 18 21 24 27 30 33 36 39 42 45 48 51 Q [l/min] NOTE: 1) value of PWM signal in % 2) speed in rpm...
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