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Menu “7. Protective functions” can be
used to activate and set various protective
functions.
The menu is closed by pressing “esc” or
selecting “Exit settings”.
Caution
This function causes energy to be lost via the collector! It is normally not
activated for solar systems with antifreeze.
Observe the operating instructions for the other system components!
Protective functions
7. Protective functions
If the seizing protection is activated, then the controller switches the relay in question and the
connected consumer on every day at 12:00 or weekly on every Sunday at 12:00 for 5 seconds in
order to prevent the pump and/or the valve from sticking after an extended stationary period.
Setting range R1: daily, weekly, off/default setting: Off
Setting range R2: daily, weekly, off/default setting: Off
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, then the
pump switches off again.
Frost protection setting range: on, off/default setting: off
Frost stage 1 setting range: from -25°C to 10°C or off/default setting: 7°C
Frost stage 2 setting range: from -25°C to 8°C/default setting: 5°C
7.1 Seizing protection
7.2 Frost protection
Caution
This does not under any circum-
stances replace the safety facili-
ties to be provided by the cus-
tomer!
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