Installation with existing immersion
sleeves
In Germany the C5 can be put into
use in connection with existing im-
mersion sleeves in accordance with
the article "Putting into use of MID
homologated temperature sensors"
released in the PTB notifications 119
(2009), Edition 4. Based on current
information, the regulation has a pe-
riod of validity until 30.10.2026. For
the identification and marking of the
usable existing immersion sleeves
in connection with the C5 meter, an
identification and marking set can be
delivered from our company (order
number 137382).
Commissioning
Open valves carefully. Vent the
■
system. Avoid sudden pressure
shocks. Check installation for
leakage.
Attention!
■
For zelsius C5 with
LoRa interface, we
recommend at first
to do the onboarding of the device
on your respective IoT platform by
putting in the key information
belonging to the device (DevEUI,
JoinEUI and AppKey) before
activating the device as described
below!
If the sleep mode of the counter is
■
enabled (Display: SLEEP 1), then
it must be deactivated by longer
pressing the button (>5s).
While the system is operating,
■
check whether the volume display
advances and the temperatures
displayed correspond with the ac-
tual temperatures (see the display
overview).
Wait for the temperature display
■
to be updated.
Secure meter with the enclosed
■
sealing material against unau-
thorised removal.
Fill in the putting into use report
■
in accordance with PTB-Directive
TR K9.
22
Note:
Only for versions with programma-
ble place of installation of the flow
sensor (marking "point of installa-
tion: see display" at the type plate
on the side).
The meter is in the delivery status in
sleep mode (SLEEP 1).
If the meter is being awakened
from the sleep mode, the following
display appears initially:
If the push button is not operated
within approx. 4 minutes, the
meter programs itself automati-
cally for installation in the return
pipe of the heating system (resp.
pipe with lower temperature
level) and the display shown above
disappears.
For installation in the supply pipe
of the heating system (resp. pipe
with higher temperature level)
press the button shortly and the fol-
lowing display appears:
With a short button press you can
choose between the following two
displays.
Installation in return pipe:
Installation in supply pipe: