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Protective functions
menu 6
11
11
11. Protective functions
Menu “6. Protective functions” can
be used to activate and set various
protective functions.
Caution
The menu is closed by pressing
“esc” or selecting “Exit settings”.
This does not under any
circumstances replace
the safety facilities to be
provided by the customer!
11.1 Seizing protection
Menü 6.1 / 6.1.1 - 6.1.2
If the seizing protection is activated, then the controller switches the re-
lay in question and the connected consumer on every day at 12:00 and
on Sundays 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: daily
Setting range R2: daily, weekly, off/default setting: daily
11.2 Frost protection
menu 6.2 / 6.2.1 - 6.2.2
A two-stage frost protection function can be activated. In stage 1 the control-
ler switches 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
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!
