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14
EN
5
Installation conditions
5.1
General
The product must be installed as described in the
installation guide in compliance with the general
requirements for the supply of water in Germany
[“AVB Wasser”] V, section 12.2 by a water supply
company or by a party registered in the water supply
company’s index of fitters.
Observe all applicable local installation regulations,
general guidelines, sanitary requirements and tech-
nical specifications.
5.2
Installation site and environment
Softening units may not be installed in systems
that provide water for fire extinguishing purposes.
The installation site must be kept free of frost, must
protect the product from chemicals, paint, solvents
and fumes, must be structurally waterproofed in
accordance with DIN 18195-5 and must allow for
easy connection to the water supply system.
NOTE
►
A connection to the sewage system, a
floor drain and a separate mains con
-
nection (230 V / 50 Hz) must be located
in the immediate vicinity.
If there is no floor drain, the AQA Stop safety func
-
tion integrated into the softening unit (available with
some models) or the internal AQA Stop function
may suffice.
However, this is at the property insurer’s discretion.
It is the unit operator’s responsibility to clarify this.
If there is no floor drain and the softening unit does
not have an integrated AQA Stop function, a sepa-
rate safety device will have to be installed on site in
the direction of flow upstream of the softening unit.
This safety device (e.g. external BWT AQA Stop)
has to shut off the water supply when there is no
current in order to prevent unintended water leakage
from the softening unit if the product is damaged.
The rated mains power (230 V/50 Hz) and the
required operating pressure must be present at
all times. A separate means of protection against
a shortage of water is not provided and must be
installed on site if desired.
If the rinsing water is fed into a pump, it must be
designed for a water volume of at least 2 m
3
/h or
35 l/min for products for building services and at
least 3 m
3
/h or 50 l/min for Rondomat and BWT
Perla Professional products.
If the pump is used for other products simultane-
ously, the size must be adjusted according to their
water discharge quantities.
The pump must be resistant to salt water.
In order to benefit from the connectivity of the prod
-
uct, either GSM reception or integration into a home
network via LAN or WLAN should be possible at the
installation site (see chapter 9).
5.3
Inflow water
The inflow water must always meet the specifica
-
tions of the Trinkwasserverordnung (German Drink-
ing Water Ordinance) or EU directive 98/83/EC. The
total dissolved iron and manganese may not exceed
0.1 mg/l. The inflow water must always be free of air
bubbles. Install a bleed device if necessary.
If the treated water is intended for human con-
sumption as defined in the Trinkwasserverordnung
(German Drinking Water Ordinance), the ambient
temperature must not exceed 25°C.
If the treated water is intended for industrial pur-
poses only, the ambient temperature must not
exceed 40°C.
The product’s maximum operating pressure must
never be exceeded (see chapter 12, Technical data).
If the network pressure is higher, a pressure reducer
must be installed upstream of the product.
The product requires a minimum operating pressure
to function correctly (see chapter 12, Technical
data).
The optimal operating pressure is between 3 and
6 bar.
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