Setting protective functions
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4.3
"System protection" function
This function is active at all times.
This function protects the system against overheating. If the temperature of the collector
rises above the preset system protection temperature, the solar circuit pump switches off.
When the temperature falls below the system protection temperature, the system will be
in the "Collector protection" function again. When the temperature falls below the
collector protection temperature, the system will be in normal operating mode.
For this function you can set the following parameters:
•
Basic settings/Solar circuit/System protection
4.4
"Pump protection" function
This function is active at all times and cannot be changed.
If the solar circuit pump is not activated for 10 days, the controller starts the solar power
system automatically for 30 seconds.
4.5
"Heat exchanger protection" function
This function is automatically active if a hydraulic layout with external heat
exchanger is activated.
This function protects the heat exchanger against damage from frost. Whenever the
temperature on the collector falls below 5 °C, the heat exchanger pump switches on.
4.6
Setting the "Recooling" function
ATTENTION
Risk of damage to the solar power system if operated with the "Recooling"
function in combination with reheating.
Make sure that reheating is not in operation before you activate the
"Recooling" function.
The "Recooling" function can be activated only if the "Collector protection"
function is active.
