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Solar-Divicon DN20B Installation, Start-up, Service
Risk of electric shock!
Check if the sensors and the pump are properly connected to the controller and if the controller
housing is closed. Only then should the mains plug of the controller be plugged into an outlet.
Incorrect
4.4 Setting the solar loop flowrate [specialist]
Correct
11. Connect the controller (to be provided on site) to the
power supply and set the solar circuit pump in the
manual mode to ON as described in the controller
manual. Run the solar circuit pump at maximum
rotation speed for at least 15 minutes.
In the meantime, vent the solar thermal system
several times at the vent plug of the airstop until the
solar fluid escapes without forming bubbles
(see page 12).
If necessary, increase the system pressure to the
operating pressure again.
12. Remove the hoses of the flush and fill station and
screw the the closure caps on the fill and drain
valves.
Note: The closure caps are only for protection
against soiling. They have not been constructed for
high system pressures, their tightness only being
guaranteed by the closed ball valves.
Scale: 0.8 - 6 USgpm
(The unit is specified on the scale)
Reading edge = Round edge of the floating body
Example: Approx. 3 USgpm
Refer to "Vitosol Operating and Service
Instructions" for the correct flow rate adjustment for
different collector types.
1.
Set the desired max. flow rate via the 3-speed
switch of the solar pump. The controller will vary
the speed according to the load.
In exceptional cases, the flow rate can also be
reduced via the ball valve (3.1).
2.
Mount the front shell on the solar station.
3.
Set the controller to automatic mode (see
controller manual).
15
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