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8.2
Solar optional functions
In this menu, optional functions can be selected and adjusted for the solar part of
the arrangement.
By selecting Add new function, different pre-programmed functions can be se-
lected. The kind and number of optional functions offered depends on the previous
adjustments.
When a function is selected, a sub-menu opens in which all adjustments required
can be made.
With this menu item, a relay and, if necessary, certain system components can be
allocated to the function.
The menu item Relay selec. is available in all optional functions. Therefore, it will
not be explained in the individual function descriptions.
With this menu item, a relay can be allocated to the function. All free relays are
available for selection.
Store sequence control:
If the priority store cannot be loaded, the subordinate store next in priority is
checked. If useful heat can be added, it will be loaded for the Circulation time.
After this, the loading process stops and the controller monitors the increase in
collector temperature during the loading break time Load. break. If it increases
by 2 K, the break time timer starts again to allow the collector to gain more heat. If
the collector temperature does not increase suffi ciently, the subordinate store will
be loaded again for the Circ. time as before.
As soon as the switch-on condition of the priority store is fulfi lled, it will be loaded.
If the switch-on condition of the priority store is not fulfi lled, loading of the second
store will be continued. If the priority store reaches its maximum temperature,
store sequence control will not be carried out.
If store sequence control is active and the system switches to load the priority
store, the parameter Load. break also acts as a stabilisation time, during which the
switch-off condition is ignored while the system operation is stabilising.
Summary of Contents for BW/H Komfort HE
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