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Protections
6.3. System protection
Highest priority protection
System protection prevents the system components from overheating by automatically
shutting down the solar pump. If “SProt Ton” is exceeded for 1 minute at the collector,
the pump is switched off and stays off in order to protect the collector from steam ham-
mering, for example. The pump is activated again when the temperature drops below
“SProt TOff”.
Setting range: on/off/Default: on
SP T on-Setting range: 60 °C - 150 °C/Default: 120 °C
SP T off-Setting range: 50 °C - T on minus 5 °C/Default: 115 °C
Caution
When system protection is on, the temperature in the idle collector will
be very high, thus the pressure in the system will rise. Pay close atten-
tion to the instructions for the system components.
