
7.2
Info message
Info display
The controller checks the status of
the plants and indicates errors.
This is a plausibility check of the
entries and is used for informa-
tional purposes in the event of
malfunctions.
Info code
Description
Possible cause
54
Thermal disinfection, temperature
not reached or not carried out.
n
Primary temperature is too low.
n
Tapping is in progress.
n
No circulation flow or circulation
flow rate too low.
57
Maximum temperature for circula-
tion
ZIR02 MAX TEMP CIRCULATION
exceeded.
253
Master not in sequence, eBUS
address of master not entered in
STN1 (04:022).
Incorrect basic setting
n
STN1 (04:022) = 0
298
Lower switching threshold is set
lower than the minimum pump
speed.
Incorrect basic setting
n
KAS05 (36:021)
<
STE01 (05-090)
318
Fresh water setpoint temperature
>
legionella protection temperature.
Incorrect basic setting
n
BAS01 (05:051)
>
LEG01 (05:004).
321
Minimum temperature loss
>
max-
imum temperature loss.
Incorrect basic setting
n
STE12 (05:100)
>
STE14 (05-101).
322
Minimum tapping volume
>
max-
imum tapping volume.
Incorrect basic setting
n
STE13 (05:102)
>
STE15 (05:103).
7.3
Explanation of terms and abbreviations
E
ERROR
Total fault message
F
FRIWA
Primary pumps
H
h
Hours
I
Actual value
Temperature measured
K
ES 5941
Troubleshooting support
08/2020 Item no. 215790 EA no. 1321
Operating instructions
49