Disinfection - oventrop Regtronic RQ Installation And Operating Instructions For The Specialised Installer

3.3.4 Disinfection

Main menu / Disinfection
Adjustment channel Description
Disinfection Activation of the function
Manual start Manual start of the disinfection
T-disinf set Set temperature for thermal disinfection 65 ... 75 °C
Disinf duration Duration of the thermal disinfection
Disinf day Sub-menu for selecting the disinfec-
tion day
Disinfection day Selecting the disinfection day
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Disinf time Starting time for the thermal disinfection 00:00 ... 23:59
Preheating Activation of the store afterheating
∆t circ
Time constant of the circulation pipe
Overrun time Overrun time for both pumps
Flushing Sub-menu for the fl ushing process
after a completed thermal disinfection
Flushing Activation of the function
Relay 1 Relay selection for the fl ushing process system dependent
Flushing time Indication of the fl ushing time
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Adjustment range / selection Factory setting
Yes, No No
- -
70 °C
3 min
1 ... 30 min
- -
Mo, Tu, We, Th, Fr, Sa, Su Mo, Tu, We, Th,
Fr, Sa, Su
01:00
Yes, No No
300 s
60 ... 900 s
60 s
60 ... 600 s
- -
Yes, No No
system
dependent
- correlates with
the overrun time
This function helps to prevent the spread of Legionella
in DHW and circulation pipes on the secondary side
of the heat exchanger. When the thermal disinfection
function is active, the speed of the primary pump
is controlled such that the adjustable temperature
T -disinf set is reached. The controller activates the
circulation pump in order to disinfect the circulation
pipe for the adjustable time Disinf duration.
The thermal disinfection function starts automati-
cally when the adjusted Disinf time on the adjusted
Disinf day has arrived. By means of the menu item
Manual start, the disinfection can be started manu-
ally at any time.
When the thermal disinfection function is active, it can
be aborted at any time by means of the menu item
Abort. All runtimes counted and conditions fulfi lled
will be reset in that case.
WARNING! During and up until 1 hour after the
completion of a thermal disinfection,
increased DHW temperatures may
occur. Ensure a scald protection dur-
ing and up until 1 hour after the com-
pletion of a thermal disinfection. After
thermal disinfection is completed, re-
turn the system to normal operation.
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