16
MID - Declaration of Conformity
zelsius®C5-IUFisproducedand
tested in compliance with the Euro-
pean Measuring Instruments Direc-
tive2014/32/EU(MID).Accordingto
this directive, devices are no longer
carryinganinitialvericationstamp,
but rather the year of the device’s
declarationofconformity(recogniz-
able on the front of the device, for ex-
ample:M19=2019).TheMIDcontrols
the use of measuring device up to the
moment they are placed on the mar-
ketresp.theirrstputtingintouse.
Aerthis,thenationalregulations
for devices subject to compulsory
vericationapplywithintheEU.The
durationofinitialvericationvalidity
inGermanyremains5yearsforheat
meters.Aerthisperiodhasexpired,
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.
Ifyouhavequestions,pleasedirect
them to info@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-IUFfullsthenational
andinternationalrequirementsfor
interference resistance. To avoid
malfunctions due to other interfer-
ences,donotinstalluorescent
lamps, switch cabinets or electric
devices such as motors or pumps in
the immediate vicinity of the meter.
Cables leaving the meter should not
belaidparalleltolivecables(230V)
(minimumdistance0.2m).
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
theservicelife.Repairsmayonlybe
carried out by the manufacturer or
authorized service partners.
Installation manual
Safety instructions for installation
Readtheseinstructionscarefully
right up to the end before starting to
mount the device! The installation
hastobedonebyqualiedprofes-
sional personnel. The current laws
and regulations have to be observed,
especially the PTB technical guide-
linesK8undK9,EN1434part1+6,(in
Germany also AGFW directive FW202,
FW510andFW218).Atdeviceswith
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
temperatureattheowsensor
maynotexceed105ºCresp.130
°C. For heating systems with a lack
of temperature mixing resp. with
temperaturestraticationastraight
pipeline of min. 10 x DN has to be
provided upstream of the meter. The
owsensoriswear-free,thereare
no moving parts. No straight lengths
ofpiperequired.Itisimportantto
ensureadequatesystempressureto
avoid cavitation.
With heating water temperatures of
90 °C and more as well as combined
heat and cooling measuring or only
cooling measuring the calculator has
to be mounted on the wall for protec-
tionofexternalcondensation(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 trans-
actions. For this purpose, devices
with a separate type-examination
certicatearecurrentlyrequired).