Operation manual of solar controller SR1568
Page 58 of 87
temperature, but only up to 95°C (emergency shutdown of the tank), and Emerj is displayed,
system stops.
If the collector cooling is active, Cooling is displayed.
This function is only available if the system cooling function and the heat transfer function are
not activated.
In systems with east- / west collectors two separate menus (COL and COL 2) will be
displayed.
OCMI Collector minimum temperature
The minimum collector temperature is the minimum switch-on temperature which must be
exceeded for the solar pump (R1 / R2) to be switched on. If the collector temperature falls
below the adjusted minimum temperature, Min is displayed.
Note: In systems with east- / west collectors two separate menus (COL and COL 2)
will be displayed.
OCFR Collector antifreeze function
Collector antifreeze function activates the loading circuit between the collector and the tank
when the collector temperature falls below the adjusted temperature CFR O. This will protect
the fluid against freezing or coagulating. If CFR F is exceeded, the solar pump will be
switched off again.
If collector antifreeze function is activated, Antifreeze is displayed.
Note: In systems with east- / west collectors 2 separate menus (COL and COL 2) will
be displayed.
Note: Since this function uses the limited heat quantity of the tank, the antifreeze
function should be used only in regions with few days of temperatures around the
freezing point.
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