About These Operating Instructions30; Symbols Used; Safety Instructions And Dangers Due To Non-Observation; Units Used - OWA DELFIN MEGA Einbau- Und Betriebsanleitung

vention, the recognised technical regula-
tions for safe and professional work must be
observed.
Therefore, these operating instructions must
be read by the installer and the responsible
technical personnel/operators prior to instal-
lation, commissioning and servicing.
Not only must the general safety instruc-
tions listed in chapter "Intended use" be
observed, but also the specific safety in-
structions that are included under the
other main points.
1.1

Symbols used

The safety instructions contained in these
operating instructions are labelled with the
following symbols:
ATTENTION
Warning of electric voltage
Torques specified by the manu-
facturer
User tips and other information
Instructions attached directly to the rotary
flange fitting or the water softening system,
such as:
– Direction of flow (see fig. 1)
– Type label
– Cleaning information
must be observed without fail and main-
tained so that they are always legible.
Fig. 1: Rotary flange fitting
About these operating instructions
1.2
In particular, non-observation of the general
danger symbols is associated with the fol-
lowing typical hazards:
– Failure of important water softening sys-
– Endangering of persons due to electrical
– Endangering of persons and the envi-
Any working methods that might endanger
safety must be avoided.
Non-observation of these operating instruc-
tions and the safety instructions herein may
endanger persons, as well as the environ-
Indication of
ment and the device itself.
existing dan-
gers
1.3
The following units which do not form part of
the SI (Système International d'Unités)
system are used:
DELFIN MEGA
Safety instructions and
dangers
due to non-observation
tem functions.
and mechanical effects.
ronment due to leaks.

Units used

Quantity Unit Conversion
Nominal 1" Corresponds to DN 25
diameter
Pressure bar 1 bar = 100000 Pa
Water °e 1 °e
hardness
= 0.1 N/mm²
≈ 14.5 psi
= 0.142 mmol/l
Alkaline earth
ions (hardness
producing ions)
= 14.2 ppm
CaCO
3
31