24
Mounting heating-/cooling ener-
gy meter
■
Flush the system thoroughly be-
fore installing the heating-/cooling
energy meter.
■
Close valves and release pres-
sure.
■
Dismount the existing ow sensor
or meter blank.
■
Use only new and awless sealing
material and check the seal face
for damage.
■
Install the new ow sensor accor-
ding to the correct ow direction
and installation position.
■
Turn heat computer to desired
reading position.
Installation of the temperature
sensors
■
The installation of the tempera-
ture sensors should be preferably
symmetrical and direct installati-
on.
■
Do not remove the return sensor
if already mounted on the VMU.
This is also valid for all the safety
seals which are mounted on the
device as a standard.
■
Sensors are colour-coded
(according to the model):
red= Supply (the hot side in
„Heating“ mode and the cold
side in in „Cooling“ mode);
blue= Return (the cold side in
„Heating“ mode and the hot side
in „Cooling“ mode).
■
The connecting cables may not
be buckled, extended or shor-
tened.
■
The seal at the sensor installation
point on the measuring capsule
may not be damaged.
■
Remove locking screw and seal
at the ball valve completely, if
existing.
■
Attach the O-ring to the installa-
tion aid (the 2nd O-ring is only a
spare O-ring). Using the installa-
tion aid, insert the O-ring into the
installation point according to DIN
EN 1434 with a slight circular mo-
tion.
■
Using the other end of the instal-
lation aid bring the O-ring into the
correct position.
■
Insert the 2 halves of the plastic
connector into the sensor’s three
notches (crimps) and press them
together.
■
Use the installation aid as positi-
oning aid.
■
Insert the temperature sensor
into the installation point and
Symmetrical sensor installation for zelsius
®
C5-IUF with the return sensor integrated in the
measuring capsule.
Symmetrical sensor installation for zelsius
®
C5 - IU F.
Supply
Return
Consumer
Supply
Return
Consumer
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