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WHI-SK20PPHS2 

(2.2 bar Start Up)

AUTO RESTART

PUMP CONTROL

ELECTRONIC REGULATOR FOR ELECTRIC PUMPS

SPECIFICATIONS

Input Voltage 240V

Maximum working pressure 10bar

Frequency 50Hz

Max working temperature 60°C

Current Max. 16A

Connection 1” male BSP

Protection Rating IP65

UNIT STARTING AND WORKING

Warning
Never take the electronic board out of the control box.

The wiring diagram inside the terminal block will show you how to correctly wire 
the controller. Wrong connection will destroy the whole electronic circuit. 

Cable used for connection must be a three-wired one with compulsory grounding 
end. It shall have the outer diameter at 7.5mm min and 8.5mm max. One of the 

the cable beingconnected to the power as shown in the Figure below.

fastened to avoid water entering into the control box and damaging the electronic 
circuit.

STARTING
When the unit is connected to the electrical network, the green led “Power On” lights up and the 

yellow led “On” (pump in operation) 2 seconds later indicating that the pump has been started. 

reach the required pressure.

pressed and wait, with a tap opened, until the red led is off.
Once the button is released the tap is closed, the unit stops the pump at its maximum pressure.
FUNCTIONING
This unit is programmed to perform all the pump control operation automaticlly.
When breakdowns occur, such as water failure, obstruction of the suction pipe etc., the unit can 
prevent damages caused by its working in the absence of water.
When there is no water supply to the system, the water pump will stop automatically after 20s 

running and the red led will glint. The water pump runs automatically for 40s after stopping for 10s 
and checks the water supply; If there is no water supply, the water pump runs automatically for 
40s after stopping for 10s again and checks the water supply; If there is still no water supply, the 

water pump will stop automatically and turn to the dry - running protection status. After 24 hours, 
the pump will start automatically and repeat the above procedures. During stopping the pump, the 

pressing the “Restart” button.

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