BADU Logic 2, Installation And Operating Instructions Manual, Page: 62 / 72

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The menu “6. Protections/Protective
functions” can be used to activate and set
various protective functions.
The menu is closed by pressing the “esc”
key or selecting “Exit protective functions”.
Protections
6. Protections
Achtung
This does not under any circum-
stances replace the safety facilities
to be provided by the customer!
Caution
This function causes energy to be lost via the collector! It is normally not activat -
ed for solar systems with antifreeze. This function does not render the emptying
of absorbers during the cold season obsolete.
Observe the operating instructions for the collector!
A two-stage frost protection function can be activated. In stage 1 the controller switch -
es the pump on for 1 minute every hour if the collector temperature drops below the
set value “Frost stage 1”.
If the collector temperature drops further to the set value “Frost stage 2” the controller
switches the pump on continuously.
If the collector temperature then exceeds the value “Frost stage 2” by 2 °C, the pump
switches off again.
Frost protection setting range: on, off/Default: off
Frost stage 1 setting range: from -25 °C - 10 °C or off/Default: 7 °C
Frost stage 2 setting range: from -25 °C - 8 °C/Default: 5 °C
If the seizing protection is activated, the controller switches the relay in question and
the connected consumer on every day at 12:00 (setting “daily”) or weekly on Sundays
at 12:00 (setting “weekly”) for 5 seconds in order to prevent the pump and/or the ball
value from sticking after an extended stationary period.
Setting range R1: daily, weekly, off/Default: off
Setting range R2: daily, weekly, off/Default: off
6.2. Frost protection
6.1. Seizing protection