18
MID - Declaration of Conformity
Zelsius® C5-CMF is produced and
tested in compliance with the Euro-
pean Measuring Instruments Direc-
tive 2014/32/EU (MID). According to
this directive, devices are no longer
carrying an initial verication stamp,
but rather the year of the device’s
declaration of conformity (recogniz-
able on the front of the device, for ex-
ample: M19=2019). The MID controls
the use of measuring device up to the
moment they are placed on the mar-
ket resp. their rst putting into use.
Aer this, the national regulations
for devices subject to compulsory
verication apply within the EU. The
duration of initial verication validity
in Germany remains 5 years for heat
meters. Aer 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 support@zenner.com
The declaration of conformity is
attached to each measuring instru-
ment. The latest information about
this product can be downloaded
from www.zenner.com
Safety instructions
Electro-magnetic interference
zelsius® C5-CMF fulls the national
and international requirements for
interference resistance. To avoid
malfunctions due to other interfer-
ences, do not install uorescent
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 dur-
ing the service life. Repairs may only
be carried out by the manufacturer
or authorized service partners.
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 qualied profes-
sional personnel. The current laws
and regulations have to be observed,
especially the PTB technical guide-
lines K8 und K9, EN1434 part 1+6, (in
Germany also AGFW directive FW202,
FW510 and FW218). At devices with
M-Bus the general rules of technol-
ogy and the respective regulations
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 tem-
perature at the ow sensor may not
exceed 90 °C. For heating systems
with a lack of temperature mixing
resp. with temperature stratication
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 com-
puter of the C5-CMF in combi version
on the wall, the supplied mounting
adapter has to be used.
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