11
EN
3 Intended use
3.1 Proper use
This product is intended for the partial softening of
drinking and service water. It is also designed to
prevent malfunction and damage caused by calci-
devices, boilers and other equipment.
match the expected usage conditions. For notes on
this, see the DIN 1988-200 standard as well as the
technical data in chapter 12 of this installation and
operating manual.
If the product is intended for a commercial appli-
cation, a BWT consultant must conduct a test and
issue an approval.
Operation of the product with regular function
checks and the execution of the maintenance meas-
ures required for the safe operating condition of the
product in accordance with the operating conditions
for planning and construction.
3.2 Foreseeable misuse
A product not used for a longer period of time (7 days
in accordance with DIN EN 806-5) is not operated
as intended.
Non-compliance with the ambient and operating
conditions in the technical specifications in
chapter 12.
Failure to comply with the maintenance and service
The use of unauthorised consumables and spare
parts.
3.3 Other applicable documentation
Data protection notice
Material safety data sheets
Installation and operating manual for the instal-
lation accessories
4 Function
4.1 General
The BWT Perla one is a simplex water softener
that functions using ion exchange. The product
is lled with organic ion exchange material.
water is available via an integrated bypass.
rate is reduced during the regeneration procedure.
NOTE
The design of the unit does not permit
setting it to 0°dH. The minimum avail-
able outow hardness is approximately
20 percent of the inow water hardness.
Maximum softening (set to 0°dH)
Regeneration is triggered volumetrically (depend-
ing on the quantity of water). This means that no
remaining supply of softened water is discarded
during regeneration.
4.2 Operation
The mode of operation is consumption-dependent.
This adaptive, sequential design maximises sof-
tened water availability and minimises stagnation.
water is available.
The regeneration time therefore occurs at night,
as water consumption is usually lower during this
period.
BWT Perla one automatically determines the capac-
ity required by means of constant monitoring over
a two-week consumption period.
Regeneration begins immediately if the capacity is
exhausted; otherwise it starts at the regeneration
time.
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