Zenner zelsius C5-ISF Instrucciones De Instalación Y Funcionamiento página 18

MID - Declaration of Conformity
zelsius® C5-ISF and C5-CMF are pro-
duced and tested in compliance with
the European Measuring Instruments
Directive 2014/32/EU (MID). According
to this directive, devices are no longer
carrying an initial verification stamp,
but rather the year of the device's
declaration of conformity (recognizable
on the front of the device, for example:
M22=2022). The MID controls the use
of measuring device up to the moment
they are placed on the market resp.
their first putting into use. After this, the
national regulations for devices subject
to compulsory verification apply within
the EU. The duration of initial verifica-
tion validity in Germany is currently 6
years for thermal energy meters. After
this period has expired, the measuring
device may no longer be used for billing
in commercial use. The regulations
resp. validity period may vary in other
countries of the EU.
If you have questions, please direct
them to [email protected]
The declaration of conformity is at-
tached to each measuring instrument.
The latest information about this prod-
uct can be downloaded from
www.zenner.com
Safety instructions
Electro-magnetic interference
zelsius® C5-ISF and C5-CMF fulfil the na-
tional and international requirements
for interference resistance. To avoid
malfunctions due to other interfer-
ences, do not install fluorescent lamps,
switch cabinets or electric devices such
as motors or pumps in the immediate
vicinity of the meter. Cables leaving
the meter should not be laid parallel to
live cables (230 V) (minimum distance
0.2 m).
Care instructions
Clean plastic surfaces with a damp
cloth only. Do not use any scouring or
aggressive cleaning agents! The device
is maintenance-free during the service
life. Repairs may only be carried out by
the manufacturer or authorized service
partners.
18
Installation manual
Safety instructions for installation
Read these instructions carefully right
up to the end before starting to mount
the device! The installation has to be
done by qualified professional person-
nel. The current laws and regulations
have to be observed for installation and
mounting, especially the PTB technical
guidelines K 8 and K 9, EN 1434 part 1+6
(in Germany also AGFW directive FW
202, FW 218, FW 510 and VDI 2035). At
devices with M-Bus the general rules of
technology and the respective regula-
tions for electrical installations have to
be followed. Caution with discharge
of hot water during the installation
– scalding danger! Do not carry the
meter by the cables.
The maximum heating water tempera-
ture at the flow sensor may not exceed
90 °C. For heating systems with a lack of
temperature mixing resp. with tempera-
ture stratification a straight pipeline
of min. 10 x DN has to be provided
upstream of the meter. No straight
lengths of pipe required. It is important
to ensure adequate system pressure
to avoid cavitation. To mount the heat
computer of the related versions on the
wall, the supplied mounting adapter
has to be used.
With combined heat and cooling
measuring or only cooling measuring
the calculator has to be mounted on
the wall for protection of external con-
densation (for Germany and Austria: in
the case of cooling and combined heat /
cooling meters, the cooling registers are
not calibrated and may not be used for
billing purposes in commercial transac-
tions. For this purpose, devices with a
separate type-examination certificate
are currently required, e.g. zelsius
C5-IUF).
The measuring capsule flow sensor of
C5-CMF is only allowed to be used with
the connection interface according to
DIN EN ISO 4064-4 which are specified
in the technical data. The use of transi-
tion pieces or adapters inserts is not
permitted.