i
‐
SHWAK
V4
Inverter
air/water
chillers
and
heat
pumps
with
floor
‐
standing
and
remote
condensing
units
27
8.6.3
Refrigerant
diagram
i
‐
SHWAK
V4
14,
14T
and
16T
C
COMPRESSOR
CLS
COMPRESSOR
LIQUID
SEPARATOR
OS
OIL
SEPARATOR
ST
COMPRESSOR
INLET
TEMPERATURE
DT
COMPRESSOR
OUTLET
TEMPERATURE
HP
HIGH
PRESSURE
TRANSDUCER
Pr
HIGH
PRESSURE
FLOW
SWITCH
LP
LOW
PRESSURE
TRANSDUCER
4WV
VALVE
FO
INVERTING
CYCLE
LR
LIQUID
RECEIVER
EEV
ELECTRONIC
EXPANSION
VALVE
FL
FILTER
M
AXIAL
FAN
SE
OUTDOOR
AIR
TEMPERATURE
P
CIRCULATOR
ON
BOARD
UNIT
IN
WATER
INLET
TEMPERATURE
OUT
WATER
OUTLET
TEMPERATURE
CP
CAPILLARY
8.7
ELECTRICAL
CONNECTIONS
Check
if
the
power
supply
meets
the
unit’s
electric
nominal
data
(voltage,
phase,
frequency)
reported
on
the
label
in
the
unit’s
right
‐
side
panel.
Power
supply
wiring
has
to
be
made
according
to
the
wiring
diagram
enclosed
with
the
unit
and
according
to
the
national
and
international
norms
in
force
(provide
equipment
as
general
magneto
‐
thermic
circuit
breaker,
differential
circuit
breakers
for
each
electric
single
line,
proper
grounding
for
the
plant,
etc.).
Power
supply
cables,
the
electric
protection
and
line
fuses
have
to
be
sized
according
to
the
specifications
listed
in
the
wiring
diagram
enclosed
with
the
unit
and
in
the
electrical
data
contained
in
the
table
of
the
technical
characteristics.
The
supply
voltage’s
fluctuations
cannot
exceed
±10%
of
the
nominal
value.
If
this
tolerance
should
not
be
respected,
please
contact
our
technical
department.
The
power
supply
should
respect
the
listed
limits:
failing
this,
warranty
will
not
be
valid
immediately.
Before
any
operation
on
the
unit,
be
sure
that
the
power
supply
is
disconnected.
The
power
supply
cables
must
be
sized
properly,
a
minimum
cross
‐
section
of
4mmq
or
6mmq
is
recommended
if
the
optional
mod.
RExxx
kit
is
present.
Phase,
neutral
and
ground
connections
should
be
respected.
Install
upstream
of
each
unit
an
adequate
protection
and
disconnection
device
QF
of
the
electric
power
with
delayed
characteristic
curve,
with
at
least
3
mm
contact
opening
and
with
an
adequate
capacity
of
breaking
and
differential
protection.
The
capacity
of
the
magneto
‐
thermic
circuit
breaker
must
conform
to
the
electric
consumption
of
the
unit;
(Consideration
should
be
taken
of
any
eventual
auxiliary
electric
heater).
It
is
recommended
to
use
a
C20
circuit
breaker.
A
good
grounding
is
required;
the
manufacturer
is
not
responsible
for
damage
caused
in
case
of
lack
of
good
grounding.
In
case
of
maintenance,
the
unit
must
be
disconnected
from
the
power
supply,
the
power
cable
plug
must
be
easy
for
pulling
it
out
from
the
power
socket
by
the
operator
for
having
possibility
to
check
the
unit
from
anywhere,
and
the
plug
should
remain
disconnected.
It’s
required
to
use
cables
that
meet
the
regulations
in
force
in
different
countries.
Be
sure,
after
about
10
minutes
of
operation
the
screws
on
the
power
supply
terminal
block
that
are
well
fixed.
Before
proceeding,
the
user’s
‐
installer
manual
supplied
with
the
unit
should
be
read.
All
the
operations
described
below
must
be
carried
out
only
by
qualified
personnel.
The
wiring
to
the
terminal
block
must
be
performed
by
qualified
personnel.
Any
routine
and/or
not
‐
routine
maintenance
operation
shall
be
carried
out
when
the
equipment
has
been
shut
down
and
disconnected
from
the
electric
power
supply.
Do
not
put
neither
your
hands
nor
insert
screwdrivers,
spanners
or
other
tools
into
moving
parts
of
the
equipment.
The
equipment
supervisor
and
the
maintenance
man
have
to
receive
suitable
training
for
the
performance
of
their
tasks
in
safety.
The
access
to
the
electric
panel
is
limited
to
authorized
personnel
only.
Operators
have
to
know
how
to
use
personal
protective
devices
and
have
to
know
the
accident
‐
prevention
guidelines
contained
in
national
and
international
laws
and
norms.
The
operator’s
workplace
has
to
be
kept
clean,
tidy
and
free
from
objects
that
may
prevent
free
movements.
Appropriate
lighting
of
the
work
place
shall
be
provided
so
as
to
allow
the
operator
to
carry
out
safely
the
required
operations.
Poor
or
too
strong
lighting
can
cause
risks.
Ensure
that
work
places
are
always
adequately
ventilated
and
that
aspirators
are
working,
in
good
condition
and
in
compliance
with
the
requirements
of
the
laws
in
force.
Not
all
the
configurations
can
be
simultaneously
enabled
and/or
modified.
Other
values
different
than
those
of
default
can
ensure
the
proper
operation
of
the
unit,
in
case
of
doubt
about
