Operating instructions

25
System details/functions
Maximum cylinder temperature control
Select FNĂ=Ă1 at the setting level.
The solar circuit pump is switched
OFF if the set maximum cylinder
temperatureĂ"SX" has been
exceeded, to prevent overheating
the DHW cylinder.
When this function is active, the
display will show
(
Ăflashing)
Collector cooling function
Select FNĂ=Ă3 at the setting level.
The solar circuit pump is switched
OFF when the set maximum cylinder
temperatureĂ"SX" is reached.
The pump is switched ON if the
collector temperature rises to the set
maximum collector
temperatureĂ"CX", until the actual
temperature falls below that value
again. During this time, the cylinder
temperature can continue to rise
(lower priority than the maximum
cylinder temperature control), but no
higher than 90ĂºC (safety shutdown).
The pump continues to run if the
cylinder temperature is higher than
the max. cylinder temperatureĂ"SX",
and the collector temperature is at
least 5ĂK below the cylinder
temperature, until the DHW cylinder
has cooled down via collector and
pipework to the set maximum
cylinder temperatureĂ"SX".
When this function is active, the
display will show
Please observe the safety
instructions on pageĂ4.
5862Ă490ĂGB