Zenner zelsius C5-ISF Instrucciones De Instalación Y Funcionamiento página 20

Mounting of the meter
Flush the system thoroughly before
■
installing the heat/cooling energy
meter.
Close valves and release pressure.
■
For C5-ISF:
Dismount the existing flow sensor
■
/ fitting.
Use only new and flawless sealing
■
material, no hemp or similar! Clean
sealing surfaces and check for
damage.
Install the new flow sensor accord-
■
ing to the correct flow direction and
installation position.
Turn heat computer to desired read-
■
ing position.
For C5-CMF:
Unscrew the closing cap (2) from the
■
connection interface (4) respective-
ly unscrew the existing measuring
capsule.
Check the sealing surfaces and
■
threads on the measuring capsule
and connection interface for dam-
age.
Remove the old seal, clean the seal-
■
ing surface and use the new seal (3)
with the flat side up in the connec-
tion interface (4) (the seal is firmly
integrated in the brass ring for type
CMF A1).
Attention: insert only one profile
■
seal! The O-ring at the inlet filter of
the flow meter must be in groove (at
type CMF A1 in the outlet).
Use only new and flawless sealing
■
material, no hemp or similar!
Remove the screw cap (1) of the new
■
measuring capsule (5). Screw the
measuring capsule into the connec-
tion interface (4).
Tighten the measuring capsule
■
gently with an installation wrench
(hook wrench acc. to DIN 1810 (e.g.
ZENNER article number 106049),
for CMF type A1 a special wrench
with article number 165719 is
required), at CMF type A1 the end of
the last thread has to be in line with
the upper edge of the connection
interface.
Turn heat computer to desired read-
■
ing position.
20
Installation of the temperature sensors
The installation of the temperature
■
sensors should be preferably sym-
metrical and as direct installation.
Do not remove the temperature sen-
■
sor if already mounted on the flow
sensor. This is also valid for all the
safety seals which are mounted on
the device as a standard.
For type C5-CMF A1 the temperature
■
sensors are provided with a con-
nection nut M12x1.5. One of those
temperature sensors is marked with
a type label at its cable. This has to
be installed always in the inlet pipe
of the plant.
Sensors resp. their type labels are
■
partly colour-coded (according to
the model):
Red = Inlet pipe of the plant
(warmer pipe for heating, colder
pipe for cooling)
Blue = Outlet pipe of the plant
(colder pipe for heating, warmer
pipe for cooling)
The connecting cables may not be
■
buckled, extended or shortened!
The seal at the sensor installation
■
point on the flow sensor may not be
damaged.
Remove locking screw and seal at
■
the ball valve completely, if existing.
If provided, attach the O-ring to
■
the installation aid (the 2nd O-ring
is only a spare O-ring). Using the
installation aid, insert the O-ring
into the installation point according
to DIN EN 1434 with a slight circular
motion.
Using the other end of the installa-
■
5)
1)
2)
3)
4)