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REGULUS - STDC E Controller - www.regulus.eu
F 6 - Protections
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”
.
F 6.1 - Seizing protection
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: daily, weekly, off / default setting: Off
F 6.2 - Frost protection (solar only)
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, 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
fi
lled with antifreeze
fl
uid, the antifreeze protection off.
F 6.3 - System protection prevents overheating of solar system components (solar only).
System protection prevents overheating of system components by automatic shutdown of the solar pump.
If
„AS 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
„AS TOff”
.
Automatic shutdown - settings range: On / Off / Default: onAS Ton - settings range: 60 °C to 150 °C / Default: 120 °C
AS Toff - settings range: 50 °C to Ton minus 5 °C / Default: 110 °C
When solar system protection is on, the temperature in the idle collector will reach a high stagnation
value and a corresponding high pressure in the system!
Danger
Danger
Summary of Contents for STDC E
Page 1: ...EN v 1 5 STDC E Controller Instruction Manual...
Page 35: ......
