Additional functions
47
Collector excess temperature limit
Steam builds up when the system is not circulating. When it automatically switches on
again, the pump does not have the pressure to lift the fluid level above the highest point in
the system (collector feed line). If there is no circulation, the load on the pump is enormous.
This function allows the pump to be blocked above a set collector temperature threshold until
a second set threshold is fallen short of.
Temperature above which the output is to be blocked (as long as the
output is set to „automatic“)
ew
= 140
Temperature threshold releasing the output.
ew
= 100
The higher temperature is the switch-off temperature; the lower is the temperature, at
which the solar pump will be switched on again.
Switch-off temperature can be set up to 199°C. Setting over this value „
AUS
“ is displayed
(=off). That means that the function is deactivated.