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.
58
27
WIRING
DIAGRAMS
27.1
INDOOR
UNIT
ELECTRIC
BOX
LAYOUT
1) [TF1]:
Electric
transformer
240V
‐
12V
‐
30VA
2) [M1]:
Power
supply
terminal
block
3) [CB1]:
User
interface
controller
4) [AB1]:
Support
board
5) [F3*]:
Fuses
for
electric
heater
protection
6) [M2]:
Auxiliary
power
supply
terminal
block
7) [M3;
M4**]:
User
terminal
block
* Present
only
with
the
optional
electric
heater
RExxxx
kit
**
Present
only
with
the
optional
Gi2
kit
There
exist
a
second
electrical
board
in
case
of
presence
of
the
optional
Gi2
kit
and/or
the
RExxxx
optional
electric
heater.
8) 4
pole
contactor
coil
230V,
20A
for
DHW
electric
heater
side
[K1*];
9) 4
pole
contactor
coil
230V,
20A
for
plant
system
electric
heater
[K2*];
10) [SL2**]
controller.
* Present
only
with
the
optional
electric
heater
RExxxx
kit
**
Present
only
with
the
optional
Gi2
kit
or
for
the
models
MARS/MARPS.
28
CONTROL
LOGICS
For
the
control
logic,
please
see
the
supplied
control
manual
of
the
unit.
29
HANDBOOK
FOR
SOME
CONFIGURATIONS
OF
INSTALLATION
For
more
information
regarding
some
particular
installations’
configurations,
you
can
contact
our
office
and
ask
for
the
handbook
of
a
series
of
recommended
drawings
of
plants
that
have
been
highlighted
concerning
the
installation
configurations
of
our
high
efficiency
heat
pumps.
The
"Handbook"
shows
also
the
symbiotic
potential
with
some
of
our
products
included
in
the
catalogue.
