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.
54
25
COMPONENTS
OF
INDOOR
AND
OUTDOOR
UNITS
25.1
INDOOR
UNIT
MODELS
MAR / MARS and additional kit
Model
MAR
1)
Automatic
air
vent
valve
included
on
DHW
technical
side
2)
DHW
technical
side
expansion
vessel
3)
Flowmeter
DHW
‐
R
4)
Circulator
DHW
‐
R
5)
Plate
heat
exchanger
DHW
–
R
6)
Relief
valve
of
3
bar
7)
Plate
heat
exchanger
8)
Automatic
air
vent
valve
for
DHW
technical
side
9)
Safety
flow
switch
10)
Circulator
11)
Y
‐
filter
with
integrated
discharge
12)
Plant
side/DHW
technical
side
reverse
valve
13)
User
interface
14)
Main
electric
panel
15)
DHW
technical
puffer
tank
(250
L)
16)
Expansion
vessel
plant
side
(VE8AT
kit
optional
–
available
only
for
versions
without
electric
heater
or
boiler
kits)
MODEL
MAR
equipped
with
electric
heaters
kit
1)
Safety
thermostats
boxes
2)
Electric
heaters
3)
Wells
thermostat
sensors
4)
Additional
electric
board
5)
Second
expansion
vessel
with
capacity
of
8
litres
for
DHW
side
WARNING:
In
the
case
of
electric
heater
or
boiler
kits,
there
is
always
the
second
expansion
vessel
on
the
DHW
side.
MODEL
MARS
1)
Solar
group
2)
Solar
side
circulator
3)
Solar
plant
outlet
pipe
(label
"to
the
solar
plant")
4)
Solar
plant
return
pipe
(label
“from
the
solar
plant”)
5)
Additional
electric
board
6)
Second
expansion
vessel
DHW
side
with
capacity
of
8
litres