N
‐
i
‐
HP
Inverter
air
/
water
heat
pump
chillers
with
axial
fans
17
The
user’s
terminal
for
system
manage
(GITB),
if
present,
it
is
located
inside
the
electrical
panel,
as
an
extension
of
terminal
block.
The
terminal
must
be
connected
according
the
notes
below
(the
drawing
is
indicative).
AI1E
AI1E
AI1E
AI1E
DO1E
DO1EN
DO1EN
DO1E
DO2E
DO2EN
DO2EN
DO2E
DO3EN
DO3EN
DO3E
DO3E
N1E
N1E
ADI1E
ADI1E
ADI1E
ADI1E
NC1E
NO1E
NO1E
NC1E
DI3
Digital
input
DI3
Summer/winter
input
from
remote
call
(close=summer
mode
/
open=winter
mode)
DI3
Digital
input
DI3
Summer/winter
input
from
remote
call
(close=summer
mode
/
open=winter
mode)
DO1N
Digital
output,
neutral
230
Vac
Connections
made
in
factory
(see
wiring
diagrams)
DO1
Digital
output,
phase
230
Vac
Connections
made
in
factory
(see
wiring
diagrams)
DO2N
Digital
output,
neutral
230
Vac
Connections
made in
factory
(see
wiring
diagrams)
DO2
Digital
output,
phase
230
Vac
Connections
made
in
factory
(see
wiring
diagrams)
DO3N
Digital
output,
neutral
230
Vac
Connections
made
in
factory
(see
wiring
diagrams)
DO3
Digital
output,
phase
230
Vac
Connections
made
in
factory
(see
wiring
diagrams)
DO4N
Digital
output,
neutral
230
Vac
Connections
made
in
factory
(see
wiring
diagrams)
DO4
Digital
output,
phase
230
Vac
Connections
made
in
factory
(see
wiring
diagrams)
DO5N
Digital
output,
neutral
230
Vac
Connections
made
in
factory
(see
wiring
diagrams)
DO5
Digital
output,
phase
230
Vac
Connections
made
in
factory
(see
wiring
diagrams)
NC1
Digital
output
230
Vac
with
changeover
contact
NC
terminal
power
supply
(230V
AC)
3
‐
way
valve
for
sanitary
storage
tank
(to
be
used
only
in
the
case
of
3
‐
way
valve
with
3
‐
point
turn
power
plant
side)
N1
Digital
output
230
Vac
with
changeover
contact
Neutral
power
supply
terminal
(230V
AC)
3
‐
way
valve
for
sanitary
water
tank
NO1
Digital
output
230
Vac
with
changeover
contact
NO
power
supply
terminal
(230V
AC)
3
‐
way
valve
for
sanitary
water
tank
(to
turn
the
valve
tank
side)
NC2
Digital
output
230
Vac
with
changeover
contact
NC
power
supply
terminal
(230V,
50Hz,
5A
resistive,
1
A
inductive)
alarmme
N2
Digital
output
230
Vac
with
changeover
contact
Neutral
power
on
terminal
(230V,
50Hz,
5A
resistive,
1
A
inductive)
alarm
NO2
Digital
output
230
Vac
with
changeover
contact
NO
power
supply
terminal
(230V,
50Hz,
5A
resistive,
1
A
inductive)
alarm
AI10+
Analogue
input
(ST10)
0
‐
10V
(+)
signal
input
terminal
to
change
the
set
point/ratiometric
input
signal
AI10
‐
Analogue
input
(ST10)
0
‐
10V
(
‐
)
signal
input
terminal
to
change
the
set
point/ratiometric
input
signal
GNDR
serial
communication
Modbus
ground
reference
terminal
connection
for
CRH
remote
keyboard
/
Hi
‐
T
R+
serial
communication
Modbus
+
signal
terminal
connection
for
CRH
remote
keyboard
/
Hi
‐
T
R
‐
serial
communication
Modbus
‐
signal
terminal
connection
for
CRH
remote
keyboard
/
Hi
‐
T
