Additional functions
46
Function control
Function control allows detection of sensor interruption or short circuit (error code
FF1
–
FF6
), missing circulation caused by too high temperatures (>40K) between solar panel and
consumer after 10 minutes pump-run (error code
FF7
) and circulation error (error code
FF8
)
of the solar power system.
For detection of circulation error a temperature sensor gets a threshold temperature. Circula-
tion error applies, if the sensor exceeds the set threshold temperature between 00:00 to 5:00
am.
If an error occurs the display shows alternating to the usual display an error code in
one-second-intervals.
FF1
......
FF6
......Short circuit or interruption T1 to T6
FF7
...... Temperature difference between solar collector and tank is more than 40K after
10 minutes pump run. Probably no circulation!
FF8
...... Circulation error. The sensor selected under
Fc
has exceeded the temperature
threshold
L
in the period 00:00 to 05:00 am.
F1J
– Function control – sensor
T1
„
J
(a)“ (=
Yes
): Sensor
T1
is monitored for
interruption and short circuit. If an error occurs the message “
FF1
” (=function
error at sensor
T1
) will be displayed during normal operation
ew
= F1n
F2n
– Function control – sensor
T2
“
no
”: Sensor
T2
is not monitored. Never-
theless during normal operation an interruption (= 999°C) or a short circuit
(= -99°C) will be displayed at the sensor temperatures.
ew
= F2n
ew
= F3n
ew
= F4n
ew
= F5n
F6n
– Function control – sensor
T6
“
no
”
ew
= F6n
FdJ
– Function control – difference temperature “
J
(a)” (=
Yes
): If in the just ac-
tive solar circuit after more than 10 minutes pump run the temperature differ-
ence is still more than 40K, an error code FF7 is displayed.
ew
= Fdn
Fc4
– Function control – circulation error at sensor
T4
. If sensor
T4
exceeds
between 00:00 and 05:00 am the value “
L
”, error code
FF8
is displayed during
normal operation.
ew
= Fc0 (off)
L35
– Increases the temperature at sensor „
Fc
“ between 00:00 and 05:00 am
over
35
°C the error code
FF8
is displayed. “
L
” will not be displayed, if function
control for circulation error is not activated.
ew
= 70