Hi
‐
T
Centralized
controller
43
•
until
n°
7
cascade
chillers
with
terminal
units
not
connected
•
n°1
chiller
with
connected
terminal
units
(until
n°
80
terminal
units)
•
until
n°
7
cascade
chillers
with
terminal
units
connected
(until
n°
80
terminal
units)
The
chillers
connected
in
series
do
not
need
further
working
probes
to
be
placed
onto
the
system
total
discharge
piping
as
the
centralized
system
acquires
the
single
temperature
of
every
unit
and
“thermal
‐
regulates”
as
per
the
average
discharge
temperature.
The
advantage
of
a
combined
HNS
system
is
mainly
based
on
the
fact
that
the
user
has
the
Hi
‐
T
panel
as
the
sole
interface
which,
in
an
easy
and
intuitive
way,
allows
the
setting
and
the
monitoring
of
the
“hydronic
units
+
chillers”
system.
It
is
possible
to
connect
in
cascade
also
chillers
having
different
capacities;
the
Hi
‐
T
control
will
be
capable
of
“self
‐
learning”
the
installed
capacity
and
of
visualizing
(by
pressing
F2
button
and
selecting
the
unit)
in
“real
time”,
on
the
main
menu,
the
percentage
of
provided
capacity
in
comparison
with
the
installed
one
(under
installer’s
password).
It
is
also
possible,
from
the
display
of
the
main
controller,
to
know
the
working
hydronic
units
number
in
comparison
with
installed
ones
and
respecting
the
number
of
running
chillers
connected
in
the
network.
SANITARY
HOT
WATER
FUNCTION:
the
chillers
can
also
provide
sanitary
water
by
managing
an
external
3
‐
way
valve
and
a
properly
sized
boiler.
By
connecting
in
cascade
several
chillers,
the
user
can
decide
whether
all
or
only
just
a
few
of
them
can
be
used
to
supply
“sanitary
water”.
CHRONOTHERMOSTAT
FUNCTION:
the
Hi
‐
T
remote
touch
‐
screen
control
contains
the
function
of
weekly
chronothermostat
with
two
levels
of
temperature
T
and
Teco,
for
the
control
of
hydronic
terminals
and
chillers.
The
weekly
programming
is
performed
in
separate
way
for
hydronic
terminals
and
for
chiller
(e.g.,
in
a
hypothetical
office
you
can
program
the
power
‐
on
of
the
chiller
30
'before
the
opening
time,
so
the
water
in
the
pipes
is
heated/cooled
and
only
10'
before
the
start
of
the
activities
the
hydronic
terminals
are
switched).
Furthermore,
the
thermostat
sets
the
weekly
scheduling
also
for
the
production
of
domestic
hot
water
and
for
the
Legionella
disinfection.
HUMIDITY
CONTROL
FUNCTIONS/DOUBLE
SET
POINT:
humidity
and
temperature
sensors
integrated
in
the
Hi
‐
T
remote
control
enable
the
management
of
a
double
set
‐
point
adjustment
and
the
thermohygrometric
environmental
regulation.
The
remote
control
Hi
‐
T
manages
dehumidification
for
underfloor
heating
systems.
