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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 protec-
tive 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
menus 6.1 / 6.1.1 - 6.1.2
If the seizing protection is activated, then the controller switches the relay 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
menus 6.2 / 6.2.1 - 6.2.2
A two-stage frost protection function can be activated. In stage 1 the controller
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 con-
troller 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!