i
‐
SHWAK
V4
Inverter
air/water
chillers
and
heat
pumps
with
floor
‐
standing
and
remote
condensing
units
Note:
All
the
pictures
in
this
manual
are
for
explanation
purpose
only.
They
may
be
slightly
different
from
the
unit
you
purchased.
The
actual
shape
shall
prevail.
26
Do
not
put
both
pipes
in
the
same
protecting
sheath,
in
order
to
ensure
the
correct
operation
of
the
plant.
Do
not
carry
out
the
connections
by
using
ordinary
hydraulic
pipes
that
might
contain
inside
themselves
residues
of
chips,
dirt,
or
water
which
can
damage
the
components
of
the
unit
and
alterate
the
correct
operation
of
the
equipment.
Use
only
specific
refrigeration
copper
pipes
that
should
be
provided
clean
and
sealed
at
the
ends.
Use
only
pipes
with
correct
dimensions
of
diameters;
refer
to
the
table
of
the
technical
data
in
the
chapter
14.
Cut
the
pipes
with
wheel
pipes
cutter,
clutch
slowly
paying
attention
for
not
to
crush
the
pipes
when
using
the
tool.
Never
use
an
ordinary
hacksaw
because
shavings
could
go
into
the
pipe
and
then
circulate
in
the
system
which
can
seriously
damage
the
components.
After
cutting
the
pipe,
please
seal
immediately
the
opening
on
both
ends
of
the
roll
and
cut
pipe.
The
equipment
does
not
require
any
additional
refrigerant.
The
refrigerant
pipes
should
be
straight
as
possible
and
the
necessary
bends
must
have
radius
more
than
300mm.
Plug
the
opening
on
the
ends
of
the
pipes
before
inserting
them
through
the
hole
in
the
wall.
The
refrigerant
piping
and
joints
must
be
thermally
insulated
to
prevent
heat
losses.
You
should
avoid
the
introduction
of
non
‐
condensable
gases
(air)
into
the
circuit,
otherwise,
the
pressure
becomes
high
during
operation
with
the
risk
of
system
breakage.
8.6.1
Refrigerant
diagram
i
‐
SHWAK
V4
06,
08
C
COMPRESSOR
CLS
COMPRESSOR
LIQUID
SEPARATOR
ST
COMPRESSOR
INLET
TEMPERATURE
DT
COMPRESSOR
OUTLET
TEMPERATURE
HP
HIGH
PRESSURE
TRANSDUCER
Pr
HIGH
PRESSURE
FLOW
SWITCH
LP
LOW
PRESSURE
TRANSDUCER
LS
LIQUID
SEPARATOR
(only
for
the
model
09)
4WV
VALVE
FOR
INVERTING
CYCLE
LR
LIQUID
RECEIVER
EEV
ELECTRONIC
EXPANSION
VALVE
FL
FILTER
M
AXIAL
FAN
MF
MUFFLER
SILENCER
SE
OUTDOOR
AIR
TEMPERATURE
P
CIRCULATOR
ON
BOARD
UNIT
IN
WATER
INLET
TEMPERATURE
OUT
WATER
OUTLET
TEMPERATURE
8.6.2
Refrigerant
diagram
i
‐
SHWAK
V4
10,
12
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
