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.
34
It
is
a
good
rule
to
carry
out
periodic
checks
in
order
to
verify
the
proper
operation
of
the
unit.
OPERATION
1
month
4
month
6
month
Charging
of
the
water
circuit.
x
Presence
of
bubbles
in
the
water
circuit.
x
Check
the
proper
working
of
the
safety
and
control
devices
(indoor
and
outdoor
units)
x
Check
if
there
is
a
possible
oil
leakage
from
compressor
(outdoor
unit).
x
Check
if
there
is
a
possible
water
leakage
from
the
hydraulic
circuit
(indoor
unit).
x
Check
the
proper
working
of
the
flow
switches
(outdoor
unit).
x
Check
out
if
the
crankcase
resistances
are
supplied
and
working
properly
(outdoor
unit).
x
Clean
the
metallic
filters
of
the
hydraulic
circuit.
x
Clean
the
finned
coil
by
means
of
compressed
air
(outdoor
unit).
x
Check
if
all
the
terminals
on
the
electric
board
as
well
as
on
the
terminals
of
the
compressor
are
properly
fixed.
Clean
from
time
to
time
the
remote
control
switch’s
sliding
and
fixed
contactors
(indoor
and
outdoor
units).
x
Tightening
of
hydraulic
connections.
x
Check
the
tightening
and
the
balancing
of
the
fan
blades
(outdoor
unit).
x
Correct
voltage
and
phases
unbalanced
(cases
of
loaded
and
unloaded)
x
Correct
power
absorption.
x
Check
the
refrigerant
charge
and
eventual
losses
x
Check
the
operating
pressure,
and
superheat
and
sub
‐
cooling
x
Check
of
the
efficiency
of
circulation
pump.
x
Check
the
expansion
vessel.
x
If
the
unit
should
be
out
of
service
for
a
long
period,
discharge
water
from
the
piping
and
from
heat
exchanger.
This
operation
is
necessary
if,
during
seasonal
stoppages,
ambient
temperature
is
expected
to
go
down
below
the
freezing
point
of
the
employed
fluid.
x
Check
for
corrosion
Check
panel
fastening
Check
the
water
quality
(see
chapter
“Plant’s
water
characteristics”)
and
the
concentration
of
glycol.
x
Check
the
pressure
drops
of
any
drying
filters
on
the
liquid
line
x
Check
the
safety
valve
on
the
hydronic
side
x
12.1
ENVIRONMENTAL
PROTECTION
According
to
the
norms
dealing
with
the
use
of
depleting
stratospheric
ozone
substances,
it
is
forbidden
to
release
refrigerants
fluids
in
the
atmosphere.
They
have
to
be
collected
and
delivered
to
the
seller
or
to
proper
gathering
points
at
the
end
of
their
operating
life.
The
R410A
refrigerant
is
mentioned
among
controlled
substances
and
for
this
reason
it
has
to
be
subjected
to
the
mentioned
norms.
A
particular
care
is
recommended
during
service
operations
in
order
to
reduce
as
much
as
possible
any
refrigerant
loss.
13
DISPOSAL
Once
the
unit
is
arrived
at
the
end
of
its
life
cycle
and
needs
to
be
removed
or
replaced,
the
following
operations
are
recommended.
the
refrigerant
has
to
be
recuperated
by
trained
people
and
sent
to
a
proper
collecting
centre;
compressors’
lubricating
oil
has
to
be
collected
and
sent
to
a
proper
collecting
centre;
the
frame
and
the
various
components,
if
not
serviceable
any
longer,
have
to
be
dismantled
and
divided
according
to
their
nature,
particularly
copper
and
aluminium,
which
are
present
in
conspicuous
quantity
in
the
unit.
These
operations
allow
easy
material
recover
and
recycling
process,
thus
reducing
the
environmental
impact.
An incorrect decommissioning of the appliance may create serious environmental damage and endanger people’s
safety. Therefore, it’s recommended that the unit shall be disposed only by authorized persons and technical training
that has followed training courses recognized by the competent authorities.
It is required to follow the same precautions described in the previous paragraphs.
Pay special attention during the disposal operation of the refrigerant gas.
The illegal disposal of the product by the end user leads to the application of the penalties in accordance with the law
in the country where the disposal takes place.
The crossed bin symbol applied on the appliance indicates that the product, at the end of its useful life, must be
collected separately from other wastes.
