STULZ UltraWater 3-stage reverse osmosis system SUW Information on this guide
© STULZ GmbH, Hamburg
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1. INFORMATION ON THIS GUIDE
This guide is part of the product package. It must be made accessible to all persons performing assembly,
installation, start-up and maintenance work on the product.
1.1. Using the guide
This guide contains basic instructions to be followed during erection, operation and maintenance. The guide
is intended for all persons performing assembly, installation, start-up and maintenance work on the product.
It must always be kept in the same place as the product.
Make sure that people responsible for operating the product and all persons working on the product have
fully read and understood this guide. Please contact the Service hotline if you have any queries.
As well as the general safety instructions contained in this section, please also pay attention to the special
safety notes in the other sections. Furthermore, all local statutory safety measures must be observed.
1.2. Abbreviations
Table 1: Abbreviations
Abbreviation Name Explanation
A Ampere SI unit: electrical current
DC Direct current ─
GND Ground Ground wire or signal ground
min Minute SI unit
N Neutral wire ─
NC Normally closed Relay contact
NO Normally open Relay contact
s Second SI base unit
V Volt SI unit: electrical voltage
°C Celsius Unit of temperature
μS/cm Micro-Siemens per centimeter Unit for the conductivity of water
°dH German degrees of hardness Unit of water hardness
SDI Silt Density Index ─
TrinkwV Trinkwasserverordnung German Drinking Water Regulations
PE Polyethylene Type of plastic
WxHxD Width x height x depth Unit of measurement
DixH Diameter x height Unit of measurement
l/h Liters per hour Flow rate
l/d Liters per day Flow rate
TFC Thin lm composite Type of membrane
Item Item number Item in a drawing
STU Start-up ─
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