MADDALENA KUS, Инструкция по установке

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Installation instructions
KUS ultrasonic flow sensor
1 General information
1.1 Use
The instrument described in this manual is a flow sensor designed
for use with a calculator for determining the consumption of
thermal energy in heating or cooling systems that use water.
The flow meter consists of a metal measuring part combined with
a calculator. These two components are connected by a cable.
1.2 General notes
The flow meter left the factory in a faultless condition where safety
is concerned. The manufacturer will provide additional technical
support on request. Calibration relevant security seal on the flow
meter must not be damaged or removed. Otherwise the guarantee
and calibration validity of the flow meter will lapse.

Keep the packaging so that you can transport the flow meter in
its original packaging following expiry of the calibration validity.

Lay all cables at a minimum distance of 500 mm to high voltage
and high frequency cables.

A relative humidity of < 93 % at 25 °C is permissible (without
condensation).

Avoid cavitation in the whole system due to overpressure i.e. at
least 1 bar at qp and approx. 3 bar at qs (applies for approx.
80 °C).
2 Safety information
The flow meter may only be used in building service
engineering systems and only for the applications
described.
The local regulations (installation etc.) must be adhered
to.
Adhere to the operating conditions according to the dial
plate during use. Non-adherence can cause hazards and
the guarantee will lapse.
The flow meter is only suitable for circulating water in
heating systems.
The flow meter is not suitable for drinking water.
Adhere to the AGFW requirements regarding circulating
water (FW510).
Do not lift the flow meter by the calculator.
Be aware of sharp points on the thread, flange and
measuring tube.
Only personnel, trained in the installation and operation
of meters in heating and cooling systems, may install and
remove the flow meter.
Only install or remove the flow meter when the pipes are
pressure-less.
After installing the flow meter, check the leak-tightness
of the system.
Guarantee and calibration validity will lapse if the
calibration relevant security seals are broken.
Only clean the flow meter from outside with a soft,
lightly wetted cloth. Do not use any spirit or cleaning
solvent.
As far as disposal is concerned, the flow meter is a waste
electronic appliance in the sense of European Directive
2012/19/EU (WEEE) and it must not be disposed of as
domestic waste. The relevant national, legal regulations
must be observed as the appliance must be disposed of
via the channels provided for this purpose. The local and
currently valid legislation must be observed.
The meter contains lithium batteries. Do not dispose of
the meter and the batteries with domestic waste.
Observe the local stipulations and laws on disposal.
You can return the lithium batteries to the manufacturer
for appropriate disposal following use. When shipping
please observes legal regulations, in particular, those
governing the labelling and packaging of hazardous
goods.
Do not open the batteries. Do not bring batteries into
contact with water or expose to temperatures above
80 °C.
The flow meter does not have any lightning protection.
Ensure lightning protection via the in-house installation.
3 Installation
Proceed as follows to install the flow meter:

Observe the dimensions of the flow meter and check whether
there is sufficient space available.

Rinse the system thoroughly before installing the flow meter.

Fit the flow meter vertically or horizontally between two slide
valves so that the arrow on the housing and the flow direction
match. Also observe the installation situations and the
following examples of installation (see figure 2 and figure 3).

Loosen the elastic band or the cable tie, provided for the
transport, from the volume measurement unit. In operation,
the control cable should not depend directly on the volume
measurement unit.

If you install the flow meter for cold metering, follow the
appropriate instructions.
Recommendation: If you are installing more flow meters in one
unit, make sure that all the flow meters operate under the same
mounting conditions.
3.1 Installation notes
Note: When installing the flow meter the locally
applicable installation regulation for flow meters must be
observed.
Upstream and downstream straight pipes are not necessary. If you
install the flow meter in the common return of two circuits,
determine a place of installation with a minimum distance of
10 × DN from the T-piece. This distance ensures a good thorough
mixing of the different water temperatures.
Fig. 1: Mixture of different return temperatures
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