How to check the hydraulic flow rate of a Dualsun solar system?

Checking the hydraulic flow rate ensures that the Dualsun solar system is working properly.
To do so, you have to operate the solar control and read the flow rate at the flow meter of the solar station. 

1. Press the button

2. Press button (2) to select MAN1

3. Press button (2) to activate the MAN1 setting

4. Turn the knob (3) to set MAN1 to MAX

5. Press button (2) to confirm the setting

6. Remove the cover of the solar station

7. Read the hydraulic flow rate using the flow meter (10)

8. Reading at the upper edge of the flowmeter float, see flow display below

9. Reset the circulator to AUTO mode

10. Replace the cover of the solar station

  Read the flow rate at the top edge of the flowmeter float.

1. Press button (1) several times until you reach the end of the scrolling parameters

2. Press button (1) for a long time

3. Press button (1) repeatedly until you reach the HND menu

4. Press button (3) to select the HND menu

5. Press button (1) or (2) to switch the circulator from AUTO mode to ON mode

6. Remove the cover of the solar station

7. Read the hydraulic flow rate using the flow meter (10)

8. Reading at the upper edge of the flowmeter float, see flow display above

9. Reset the circulator to AUTO mode in the HND menu

10. Replace the cover of the solar station

1. Press the OK button

2. Press the right arrow several times until you reach the “Hand” symbol.

3. Press OK then press the right arrow once to change R2 = ON

4. Read the hydraulic flow using the flow meter (8)

5. Reading at lower edge of flowmeter float.

6. Reset the circulator to AUTO by pressing the right arrow several times until the “Main” symbol is

7. reached.

8. Press OK then press the right arrow once to change R2 = AUTO.

9. Press “Esc” twice.

To go further :  How to carry out a hydraulic commissioning with Dualsun SPRING panels?