CHWS PRORAPID - Seizing Protection

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INSTALLATION MANUAL PRORAPID |
This anti legionella function
does not oer any secure
protection against legionella,
because the controller
requires an adequate
added amount of energy
and the temperatures
cannot be monitored in the
entire storage area and the
connected pipe system. For
secure protection against
legionella, a heating up to
the requried temperature as
a well as a simultaneous
circulation of water in the
storage and pipe system
must be guaranteed through
energy sources and external
control devices.
During the operation of the
anti legionella function, if
applicable, the storage is
heated above the set value
“Tmax”, which may lead
to scalding and system
damage.
AL Tset
For a successful heating, this temperature
has to be reached at the AL sensor(s) for the
exposure time period.
AL residence time
For this period of time the AL
Tsettemperatures at the activated AL-
sensors have to be reached for a successful
heating.
Last AL heat
This displays when the last successful
heating has occurred.
AL-times
During this periods the AL heat up is
attempted. If within the dened period, the
AL-condition is met (Tset at the dened
sensors for the exposure time period), the
heating is completed and logged as “Last
AL heating”.
Start manually
The anti-Legionella heating can be started
manually at any time.
Seizing Protection
If the anti-seizing protection is activated
(daily, weekly, o), the controller switches
the heat pump and the mixer on/o at 12:00
noon for 5 seconds to prevent seizing of the
pump/valve after long periods of inactivity.
AL-heating
With this function, a relay switches a boiler
to anti-legionella mode as needed. The relay