ENGLISH
13
Valves
:
It
is
advised
to
install
isolating
valves
on
suction
and
discharge
sides
for
maintenance
purpose.
Those
valves
should
be
of
large
passage
type
and
could
be
locked
in
position.
Isolating
valve
on
suction
side
should
not
be
connected
directly
to
pump
suction
flange.
After
pipe
work
is
done
turn
pump
shaft
by
hand
and
check
it
turns
freely.
If
it
appears
that
it
is
difficult
to
turn
pump
shaft,
then
check
forces
applied
by
piping
to
pump
casing.
Installation
of
piping
should
be
done
again.
Location
of
connections
:
Connections
:
V
=
vent
G1/8’’
G
=
greasing
connection
G1/8’’
B
=
connection
for
quench
G1/4’’
D
=
MS
drain
connection
G1/4’’
7.3
ELECTRICAL
CONNECTION
/
EARTHING
Check
that
motor
winding
corresponds
to
site
electric
power
supply
characteristics
before
electrical
connections
are
performed.
Connecting
a
230/400V
motor
on
a
400V
power
supply
or
connection
of
a
400/690V
motor
on
a
690V
power
supply
might
drive
to
motor
destruction
if
terminal
strip
are
positioned
in
a
wrong
way.
Electrical
connection
should
be
performed
by
qualified
personnel
only
having
necessary
agreements
and
in
compliance
with
local,
national
and
international
regulations.
Equipments
used
in
an
ATEX
zone
will
be
connected
in
compliance
with
CEI60079
‐
14.
It
is
the
responsibility
of
the
end
user
to
select
proper
type
and
size
of
electric
cable.
Respect
motor
manufacturer
instructions
to
make
electric
motor
connection
(refer
to
the
instructions
supplied
with
the
motor.
they
are
usually
indicated
inside
motor
junction
box).
Sensors
will
be
connected
in
compliance
with
the
instructions
given
in
dedicated
instruction
manual.
7.3.1
TERMINAL
STRIP
POSITIONNING
FOR
STAR
(Y)
AND
DELTA
(
)
CONNECTION
(MULTI
‐
VOLTAGES
ELECTRIC
MOTORS)
Multi
‐
voltage
winding
for
voltages
230/400V
and
400/690V
:
6
wiring
terminals
:
To
change
motor
direction
of
rotation
reverse
two
phases
on
wiring
terminals.
Connection
of
earthing
terminal
is
mandatory.
7.3.2
LOWER
VOLTAGE
:
CONNECTION
Voltage
:
U
7.3.3
HIGHER
VOLTAGE
:
Y
CONNECTION
Voltage
:
U
3
7.3.4
Y
/
STARTER
:
Grounding
of
the
complete
pumpset
will
be
performed
with
special
care.
Earthing
will
avoid
any
electrostatic
accumulation
in
components
of
the
pumpset.
Each
part
of
the
pumpset
should
be
connected
to
earth
with
a
correctly
calibrated
bonding
strap
or
cable
(motor
winding,
motor
frame,
coupling
guard,
pump
baseframe).
7.4
USE
OF
A
FREQUENCY
INVERTER
When
pump
is
used
with
a
variable
speed
drive,
make
sure
that
the
frequency
inverter
instructions
and
operating
manual
is
available
and
known.
The
electric
motor
that
is
supplied
with
the
pump
may
be
connected
under
conditions
to
a
VSD.
Variable
speed
will
be
used
to
reach
pump
Содержание NFCH series
Страница 2: ...NFCH INSTALLATION ET MISE EN SERVICE FRAN AIS N M S n 4095251 Ed 3 10 13...
Страница 23: ...FRAN AIS 23 13 DECLARATION CE...
Страница 24: ...NFCH INSTALLATION AND OPERATING INSTRUCTIONS ENGLISH N M S n 4095251 Ed 3 10 13...
Страница 25: ...2...
Страница 45: ...ENGLISH 22 13 EC DECLARATION OF CONFORMITY...
