Introduction; Intended Use; 1.2 Safety Instructions; Applicable Documents - Tuxhorn tubra-nemux-S Instructions De Montage Et D'utilisation

1 I n t r o d u c t i o n
This manual describes the installation, operation and maintenance of the tubra
fresh water station.
This manual is intended for trained specialists with an adequate level of expertise in handling
heating systems, water pipe installations and electrical installations.
The installation and commissioning procedures should only be conducted by qualified,
specialist personnel.
The fresh water station must only be installed and operated in dry areas that are protected
from frost.
Read this manual carefully before starting any installation work.
Non-compliance will invalidate all claims under the guarantee and warranty.
Illustrations are symbolic and may differ from product to product.
Subject to technical changes and errors.
This installation and operating manual is to be handed over to the system operator and kept
in close proximity to the device.
1.1

Intended use

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The tubra -nemux-S/M fresh water module is an electronically controlled hydraulic
assembly for heating drinking water based on a flow principle.
The tapping flow rate is recorded via an electronic flow rate sensor that has a measuring
range of 2 – 40 l/min. The required primary flow rate is determined from the temperature of
the storage tank, the flow rate and the nominal temperature of the hot water. In order to
achieve a constant hot water temperature, the speed of the primary pump is varied by means
of a PWM signal.
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The tubra -nemux-S/M fresh water module should only be used to heat drinking water in
accordance with the Drinking Water Ordinance. The primary circuit must be filled with
heating water according to VDI 2035.

1.2 Safety instructions

In addition to country-specific guidelines and local directives, the following technical
regulations must also be taken into account:

DIN 1988

DIN 18 380

DIN 18 381

DIN 18 421

VDI 2035

DIN 4753

DIN 4708

VDE 0100

VDE 0190

TrinkwV

DVGW W551

BGV
Important - risk of burning!
As the system can reach temperatures > 60 °C, there is a risk of scalding and
burning through contact with the components.
1.3

Applicable documents

Also observe the assembly and operating instructions for the various components used, such
as the control unit
908.19.08.00
Last updated 2022/03/15
Technical rules for drinking water installations
Heating systems and central water heating systems
Gas, water and wastewater installation work
Thermal insulation work on thermotechnical systems
Prevention of damage in water heating installations
Water heaters and water heating installations for drinking water and
service water
Central heating systems
Installation of electrical equipment
Main equipotential bonding of electrical systems
Drinking water ordinance
Drinking water heating and drinking water pipeline systems
Accident prevention regulations of workers' compensation
associations
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GB
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-nemux-S/M