oventrop Regumaq K Einbau- Und Betriebsanleitung Seite 50

Diagnosis and troubleshooting
cascade control set "Regumaq K"
Consecutive
Error indication
number
Error message:
"Disinfection not
successful"
and
21
red flashing pilot
light at the
controller keyboard
Error message
"Disinfection not
22
successful"
50
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Detection,
Possible reason
control option
Reading of the error
message: Status /
messages
Status menu / read
circulation in steady
Temperature
state, determine
difference ∆Tcirc
difference between
in the menu point
outlet temperature
"circulation" is set
(sensor S2) and
too low
circulation return
temperature (sensor
freely selectable)
Start circulation
Circulation time
with the system
∆Tcirc
having cooled down
in the menu point
and measure the
"disinfection" is set
time between the
too short
start and the first
warming up in the
circulation return
in the station
Reading of the
sensor values under
status / meas./
balance values /
sensors: The
progression, min.
Required after-heating
and max. value for
temperature at the
each sensor can be
boiler has not been
displayed and reset.
reached
Click on the value
and "Delete? Yes"
Note regarding thermal disinfection in a cascading installation:
Thermal disinfection has to be carried out simultaneously by all fresh water
stations "Regumaq XZ".
– An error message can only be displayed at a station which does not meet the
criteria "T-disinf set" and "Disinf duration".
– If thermal disinfection has been completed successfully by at least one fresh
water station in the cascade (i.e. at least one fresh water station without error
message), thermal disinfection of the preceding sections of the circulation
network is also guaranteed.
1381082
1381083
1381084
(Accessories and spare parts see chapter 13)
Solution
Reset of the error message:
Status / messages confirm
Enter the determined value in
the menu "circulation-∆Tcirc"
Remark:
Circulation-∆Tcirc describes the
temperature loss [°K] in the
circulation circuit
Enter the determined value in
the menu "disinfection-∆Tcirc"
Remark:
Disinfection ∆Tcirc describes
the time [sec] for one cycle in
the circulation circuit
Ensure a sufficient after-heating
temperature. Recommendation
for automatic after-heating for
hot water and thermal
disinfection:
– Control of storage cylinder
re-loading via one controller
"Regtronic RQ" (see controller
manual)
– After-heating function:
"AH relative"
– After-heating excess:
∆T relative ≥ 8K
– Set boiler max.
– Disinfection-preheating = yes
– The buffer will now be heated
in good time before
disinfection start to:
T = T + ∆T + ∆T
disinf set circ
AH
Measuring points:
T at circulation return
disinf set
T + ∆T at hot water supply
disinf set circ
Once thermal disinfection has
been completed, re-heating to
T + ∆T is carried out
HW set relative
relative