Technical
Manual
Room
Temperature
Controller
SCN
‐
RT1
MDT technologies GmbH •
51766 Engelskirchen • Papiermühle 1
Tel.: +49-2263-880 • Fax: +49-2263-4588 • [email protected] • www.mdt.de
20
4.4.2.1
Operating
mode
Comfort
The
operating
mode
comfort
is
the
reference
mode
of
the
controller.
The
temperature
reduction
at
the
operating
modes
night
and
standby
refer
to
the
setpoint
of
the
comfort
mode.
When
a
room
is
used,
the
operating
mode
comfort
should
be
activated.
The
configured
setpoint,
the
“basic
comfort
setpoint,
is
valid
for
the
heating
process
if
the
controller
was
set
as
heating
&
cooling
(described
at
4.4.7).
The
chart
shows
the
relevant
1
‐
Bit
communication
object:
Number
Name
Length
Usage
11
Mode
comfort
1
Bit
Activation
of
the
operating
mode
comfort
Chart
15:
Communication
object
operating
mode
comfort
4.4.2.2
Operating
mode
Night
The
operating
mode
night
shall
cause
a
significant
decrement
of
the
temperature,
for
example
at
night
or
at
the
weekend.
The
reduction
can
be
programmed
freely
and
refers
to
the
basic
comfort
setpoint.
If
you
have
programmed
a
reduction
of
5K
and
a
basic
comfort
setpoint
of
21°C,
the
setpoint
for
the
night
mode
will
be
16°C.
The
chart
shows
the
relevant
1
‐
Bit
communication
object:
Number
Name
Length
Usage
12
Mode
night
1
Bit
Activation
of
the
operating
mode
night
Chart
16:
Communication
object
operating
mode
night
4.4.2.3
Operating
mode
Standby
When
nobody
is
in
the
room,
the
operating
mode
standby
is
used.
This
operating
mode
shall
cause
a
low
reduction
of
the
temperature.
So
the
room
can
be
heated
up
fast
again.
The
value
for
the
reduction
can
be
programmed
freely
and
refers
to
basic
comfort
setpoint.
If
you
have
adjusted
a
reduction
of
2K
and
a
basic
comfort
setpoint
of
21°C,
the
setpoint
for
the
operating
mode
standby
will
be
19°C.
The
standby
mode
cannot
be
activated
by
a
certain
communication
object.
It
gets
activated,
when
all
operating
modes
are
switched
off.
4.4.2.4
Operating
mode
Frost/Heat
protection
The
operating
mode
frost
protection
gets
activated,
when
the
controller
type
was
set
as
heating.
The
heat
protection
gets
activated,
when
the
controller
type
was
set
as
cooling.
When
the
controller
type
is
set
to
heating
and
cooling,
the
combined
operating
mode
frost
‐
/
heat
protection
is
activated.
This
operating
mode
causes
an
automatically
switch
on
of
heating
or
cooling,
when
a
parameterized
is
exceeded
or
the
temperature
falls
below
a
parameterized
temperature.
At
this
operating
mode,
the
temperature
is
set
as
absolute
value.
You
should
activate
this
function
if
you
are
longer
absent
and
the
temperature
must
not
fall
below
a
specific
value
or
exceed
a
specific
value.
The
chart
shows
the
relevant
1
‐
Bit
communication
objects:
Number
Name
Length
Usage
13
Mode
frost
protection
1
Bit
Activation
of
the
operating
mode
frost
protection
13
Mode
heat
protection
1
Bit
Activation
of
the
operating
mode
heat
protection
13
Mode
frost/heat
protection
1
Bit
Activation
of
the
operating
mode
frost/heat
protection
Chart
17:
Communication
object
operating
mode
frost/heat
protection