Regulus SRS 3 - Protective Functions (D 6); D 6.1-6.3 - Basic Protections

31
│
R
EGULUS - SRS 3 Controller - www.re
g
ulus.
eu
Protective functions menu 6
D 6 - Protective functions
Menu „6. Protections” can be used to activate and
set various protective functions.
These functions do not under any
circumstances replace safety elements in
solar systems!
The menu is closed by pressing „esc” or selecting
„Exit protections”.
D 6.1 - Antiblock protection
menu 6.1 / 6.1.1 - 6.1.2
Pump seizing protection using regular short turning on a pump or a valve. Seizing may occur after prolonged
inactivity of valves or pumps. If this protection is activated, then the controller switches the relay in question
and the connected consumer on every day at 12:00 or on Sundays at 12:00 (for weekly settings) 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
D 6.2 - Frost protection menu 6.2 / 6.2.1 - 6.2.2
Frost protection prevents freezing of collectors and solar system filled with water instead of antifreeze fluid.
In order to save energy, please leave it off for Regulus solar systems.
A two-stage frost protection function is available. 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 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 protection stage 1 setting range: from -25 °C to 10 °C or off/default setting: 7 °C
Frost protection stage 2 setting range: from -25 °C to 8 °C or off/default setting: 5 °C
This function causes energy loss via the collector!
As Regulus solar systems are filled with antifreeze fluid, the antifreeze protection shall remain off.
D 6.3 - System protection menu 6.3 / 6.3.1 - 6.3.5
If „SProt Ton” is exceeded at the collector, the pump is switched off. The collector is let at high temperature.
The pump is activated again when the temperature drops below „SProt TOff”.
Automatic shutdown - settings range: On / Off / Default: on
Settings range: SProt Ton 60 °C to 150 °C / Default: 120 °C
Settings range: SProt Toff 50 °C to Ton -5 °C / Default: 115 °C
Collectors do not get cooled and stay heated. This may result in limited lifetime of the solar fluid. If
you use this function, please check your solar fluid regularly.
Caution
Danger
Caution