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.
30
DO4
Phase
conductor
for
auxiliary
DHW
electric
heater
(230Vac)
DO4N
Neutral
conductor
for
auxiliary
DHW
electric
heater
DO5
Phase
conductor
for
boiler
enablement
(230Vac)
DO5N
Neutral
conductor
for
boiler
enablement
NO2
Normally
open
changeover
contact
for
double
set
‐
point
valve
(Phase
230Vac)
NC2
Normally
closed
changeover
contact
for
double
set
‐
point
valve
(Phase
230Vac)
*M5
KCS
Phase
conductor
for
solar
circulator
(230Vac)
KN
Neutral
conductor
for
solar
circulator
KMO
N.A.
contact
for
mixer
valve
(230Vac)
KMC
N.C.
contact
for
mixer
valve
(230Vac)
KDO
Relaunching
circulator
phase
KDON
Phase
conductor
for
relaunching
circulator
(230Vac)
K1
Mixing
valve
outlet
sensor
KS1
Solar
panel
collector
sensor
KS2
Solar
panel
storage
tank
sensor
K2
Water
recirculation
sensor
KPWM
Digital
input
for
ambient
thermostat
KN2
Neutral
conductor
for
solar
discharge
valve
KCS2
Phase
conductor
for
solar
discharge
valve
(*)
Present
with
mod.Gi2
Terminal
block
Auxiliary
Board
–
AB
–
Indoor
unit
Jumper
Terminals
Description
CN3
HP+
Not
Used
HP
‐
Not
Used
LP+
Not
Used
LP
‐
Not
Used
DT
DHW
terminals
CN4
PWM
1
/
0
‐
10V
1
Analog
output
for
the
signal
of
DHW
circulator
CN5
PWM
2
/
0
‐
10V
2
Analog
output
for
the
signal
of
plant
system
circulator
CN7
12V
See
the
12V
terminal
AI10
Ratiometric
0
‐
10V
analog
input
+5V
Power
supply
for
ratiometric
CN8
AI1
IMP
terminals
AI2
Outlet
(flow)
temp.
sensor
AI3
Inlet
temperature
sensor
AI4
DHW
secondary
outlet
sensor
CN9
AD1
DHW
primary
outlet
sensor
AD2
DHW
secondary
inlet
sensor
DI1
Flow
switch
DI2
ON/OFF
terminals
DI3
SW
terminals
CN10
L
Single
‐
phase
230Vac
N
Not
Used
DO1
DO1
terminal
DO2
DO2
terminal
DO3
DO3
terminal
DO4
DO4
terminal
DO5
230Vac
Phase
DO5
DO5
terminal
CN12
NC1
Normally
closed
changeover
contact
(230Vac
Phase)
C1
230Vac
Phase
NO1
Normally
Open
Changeover
Contact
(230Vac
Phase)
I+/I
‐
I+/I
‐
terminals
GND
GNDR
terminal
R+/R
‐
R+/R
‐
terminals
E+/E
‐
E+/E
‐
terminals
CN14
NC2
NC2
terminal
C2
230Vac
Phase
NO2
NO2
terminal
8.7.2
Outdoor
unit
The
connections
listed
below
are
standard.
Other
connections
are
shown
in
the
control
manual
of
the
on
‐
board
outdoor
unit
control
panel.
Remove
the
mounting
screws
of
the
cover
of
the
power
supply
(see
the
paragraph
8.4.2.2.)
Connect
the
cable
to
the
terminals
inside
the
electric
box.
For
electrical
connections
please
refer
to
the
wiring
connections
given
in
the
manual
of
wiring
diagrams.
8.7.2.1
Connection
terminals
The
terminal
block
must
be
connected
in
compliance
with
the
following
notes
(the
schema
is
only
for
illustration).