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Setting possibilities: CIRC -- = circulation check is disabled
CIRC A = circulation checks are performed according to the diagram
(only the solar circuits in the diagrams shown)
CIRC M = circulation checks can be set manually for each output.
The following menu items are only displayed if the circulation checks have been set to
“manual”.
CC1 Manual circulation check for output 1.
Example: CC1 12 = if output 1 is active, and sensor S1 has been 60K greater
than sensor
S2 for at least 30 minutes, a circulation error is displayed.
(ex works = --)
Setting range: CC1 12 to CC 1 65
CC1 -- = manual circulation check for output 1 is disabled.
CC2 Manual circulation check for output 2.
CC3 Manual circulation check for output 3.
The error messages are entered in the menu Stat. If Stat is blinking, an error or special
system status has been detected (see “status display
Stat”).
If one of the two control outputs is set to "
STAT N" or "STAT I" and the function control is
activated, then if an error occurs, the control output is switched over. Subsequently an
auxiliary relay can be used to forward this error message to a signalling device.
Heat quantity counter HQC (3 times)
The device also has a function for determining the heat quantity. It is deactivated ex works.
A heat quantity meter fundamentally requires three specifics. These are:
flow temperature, return temperature, flow rate (volume flow)
In solar systems a correct installation of sensor (see sensor installation - collector sensor on
flow collection tube, cylinder sensor on return outlet) leads automatically to correct recording
of the specified temperatures. However, the heat quantity figures will be affected by losses in
the flow line. In order to increase accuracy even more it is necessary to specify the anti-
freeze share in the heat transfer medium since the anti-freeze reduces its heat-transporting
capacity. The flow rate can be made as a direct entry or via an additional sensor.
Heat quantity counter 1 Heat quantity counter 2 Heat quantity counter 3
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