MULTICAL®
603
Kamstrup
A/S
∙
Technical
description
∙
5512
‐
2029_A1_GB_06.2017
57
4
Installation
4.1
Installation
requirements
Prior
to
installation
of
MULTICAL®
603
in
connection
with
flow
sensors,
the
heating
system
should
be
flushed
while
a
fitting
piece
replaces
the
meter.
If
ULTRAFLOW®
is
mounted,
the
adhesive
wafers
are
removed
from
the
meter's
inlet
and
outlet,
and
the
flow
sensor
is
mounted
with
couplings/flanges.
New
fibre
gaskets
in
original
quality
must
be
used.
If
other
couplings
than
the
original
ones
from
Kamstrup
A/S
are
used,
you
must
make
sure
that
the
threaded
lengths
of
the
couplings
do
not
prevent
proper
tightening
of
the
sealing
surface.
The
positioning
of
the
flow
sensor
in
inlet
or
outlet
can
be
configured
in
the
calculator
before
commissioning,
see
paragraph
6.3
about
SETUP
loop.
The
flow
direction
is
indicated
by
an
arrow
on
the
flow
sensor.
In
order
to
avoid
cavitation,
the
back
pressure
at
ULTRAFLOW®
(the
pressure
at
the
flow
sensor
outlet)
must
typically
be
minimum
1
bar
at
qp
and
minimum
2
bar
at
qs.
This
applies
to
temperatures
up
to
approx.
80
o
C.
When
the
installation
has
been
completed,
water
flow
can
be
turned
on.
The
valve
on
the
flow
sensor's
inlet
side
must
be
opened
first.
ULTRAFLOW®
must
not
be
exposed
to
lower
pressure
than
the
ambient
pressure
(vacuum).
Permissible
operating
conditions
Ambient
temperature:
5…55
C
(indoors).
Max
30
C
for
optimum
battery
lifetime.
Medium
temperature
of
heat
meter:
2…130
C
with
calculator
mounted
on
a
wall
15…90
C
with
calculator
mounted
on
ULTRAFLOW®
Medium
temperature
of
cooling
meter:
2…130
C
with
calculator
mounted
on
a
wall
Media
temperature
of
heat/cooling
meter:
2…130
C
with
calculator
mounted
on
a
wall
System
pressure
ULTRAFLOW®:
1.0…16
bar
for
threaded
meters
1.5…25
bar
for
flange
meters
Electrical
installations
MULTICAL®
603
is
available
with
either
24
VAC/VDC
or
230
VAC
supply
modules.
The
supply
modules
are
connected
to
mains
using
two
‐
wire
cable
without
protective
earth.
Use
a
strong
connection
cable
with
an
outer
diameter
of
max
5
‐
8
mm
and
ensure
correct
cable
stripping
and
cable
relief
in
the
meter.
It
must
be
ensured
that
the
entire
installation
complies
with
current
regulations,
the
supply
cable
to
the
meter
must
never
be
protected
by
a
larger
fuse
than
permitted.
In
case
of
doubt,
it
is
recommended
to
take
advice
from
an
authorised
electrician.
For
installation
in
Denmark,
SIK
‐
message
27/09,
“Installation
to
mains
connected
equipment
for
registration
of
consumption”
applies
to
meters
connected
to
both
230
VAC
and
24
VAC
powered
via
safety
transformer,
see
paragraph
10.9.
Service
Neither
welding
nor
freezing
is
allowed
while
ULTRAFLOW®
is
mounted.
Before
starting
such
work,
ULTRAFLOW®
must
be
dismounted.
If
the
meter
is
mains
supplied,
the
supply
must
be
switched
off.
In
order
to
facilitate
the
replacement
of
the
meter,
closing
valves
should
always
be
mounted
on
both
sides
of
the
flow
sensor.
Under
normal
operating
conditions
no
pipe
strainer
is
required
in
front
of
the
meter.
