Okofen PE 08 Operating Manual page 100

100 Solar settings
The collector protection mode can be switched ON or OFF.
Note:
Even if the operation mode of the solar thermal system is OFF, the collector pro-
tection is active, provided that it is turned on. This serves to protect the solar
thermal system.
If the collector protection mode is activated and the collector sensor reaches the
protection temperature, the DHW pumps and heating circuit pumps switches on.
Further the mixer open till the maximum flow temperature is reached. This process
stops if the collector temperature rises until the Solar Switch off / Collector
Overheating.
Note:
The collector protection must be set lower than the Solar Switch off / Collector
Overheating.
This process also stops when the collector temperature falls below the collector
protection temperature minus protection temperature hysteresis.
You can switch scavenging ON and OFF. The scavenging process compensates dif-
ferent temperatures in the solar circuit.
With Rest Time and Run Time you set the scavenging interval.
With pause time and run time the scavenging interval is set.
If the collector temperature is below the collector temperature minimum, the sca-
venging process is not performed.
With the Start Time you set the beginning of the scavenging process.
Start and Stop time are avoiding an unnecessary operation of the solar circuit
pump.
With Start- and Stop-Time the end of the scavening is set.
Start- and Stop-Time avoids unneccessary running of the solar circuit pump.
The priority switching serves the efficient energy utilization in case of 2 solar
circuits
It sets the priority (order) of the solar circuits.
PRIO ON can only be allocated to 1 solar circuit. Requirements from the solar circuit
PRIO ON are completely fulfilled first.
PE 567 EN 1.1