Operation; Stagnation Management; Interaction With Other Bwt Units; Connectivity - BWT AQA perla XL Einbau- Und Bedienungsanleitung

EN
4.4

Operation

A graphical TFT screen with an integrated touch
panel is used for display and for controlling the unit.
During start-up, you must enter the hardness of the
local drinking water and the required outlet water
hardness into the control unit. An actuator is used
to set the outlet water hardness.
All other unit parameters are stored in the control
unit. All unit data is pre-set and unit parameters
can be queried.
The unit capacity is displayed as a flow volume in
l/h during operation.
Operating data, such as water and regenerative
consumption, can be displayed on screen.
The following country-specific settings are available:
DE, AT, CH, EN, FR, IT, ES.
Water hardness in: °dH, °f, mol/m3, ppm calcium
carbonate.
A memory function for filter backwashing or a filter
change can be programmed in the control unit.
The installer can store his or her name and telepho-
ne number on the initial screen for the customer.
4.5

Stagnation management

A sanitizing flush can be programmed in the cus-
tomer set-up. The unit will flush automatically if it
detects that there has been no flow of water in the
last 24 hours (factory setting).
Our after-sales service staff can adjust this time
period to the specific operating conditions.
If the capacity is not used up within 72 hours, the
control unit triggers a regeneration.
4.6

Interaction with other BWT units

A mineral metering unit can be plugged into the
unit at any time.
4.7

Connectivity

USB interface for reading the operating history.
CIC plug: The contact opens in the event of an
error or power failure (max. contact assignment
24 VDC; 0.5 A).
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4.8

Safety

AQA Safe valve
The AQA Safe valve protects against water damage
in the event of a power failure, particularly when the
flushing water is being drained by a pump that stops
functioning when the power fails.
In the event of a power failure, the control valves
remain in their respective operating condition. The
programmed parameters are stored permanently
and remain unaffected by this.
AQA Watch function
The programmable AQA Watch function monitors
the building's water supply system for consistently
low (< 60 l/h) flow rates. (Consistently low flow rates
indicate a problem in the pipeline network.)
In the event of an error (water flow longer than 10
min. < 60 l/h), the control unit issues a warning.
AQA Stop – moisture on floor
If the AQA perla XL floor sensor detects water on
the floor, the water supply from the unit is shut off
and a warning issued. The floor sensor not only
responds to drinking water (minimum conductivity
of 200 µS/cm).
AQA Stop – water quantity limitation
To minimise water damage, the control valve shuts
off the water supply following the continuous flow
of a pre-set water volume.