User manual
3.2.3
Adjustment
of
ROOM
value
As
mentioned
above,
you
can
also
adjust
heat
curve
and
indoor
temperatur
e
by changing
the
ROOM
value.
If
you
use
ROOM
value
to
adjust
the
heat
curve,
the
gradient
does
not
change,
i.e.
it
doesn’t
become
steeper
or
flatter
.
Instead,
the
whole
curve
is
moved
by
1°C
for
every
degr
ee
by
which
the
ROOM
value
is changed.
The
r
elation
feed
line
temperatur
e
to
outside
air
temperatur
e
will
not
be
af
fected.
The
feed
line
temperatur
e
will
be
incr
eased
or
r
educed
by
the
same number
of
degr
ees
all
along
the
heat
curve.
See
the
following
diagram.
Adjustment
of
the
ROOM
value
should
only
be
used
for
temporary
changes
of
the indoor
temperature.
For
long
term
settings,
the
CURVE
value
should
be
adjusted
as
this
is
the
most
ener
gy
and
cost
efficient
way
to
set
the
indoor
temperature.
For
adjusting
the
heat
curve,
please
r
efer
to
the
chapter
”Adjustment
of
the
CURVE
value”
on
page
20.
Change
of
value
for
CURVE
CURVE C
C
40
18
C
0
5-5
24
32
40
48
56
64
18
Factory
setting
of
ROOM
value
is
20°C.
Chan
gi
n
g
the ROOM
value
CURVE C
C
40
18
C
0
5-5
24
32
40
48
56
64
18
You need to choose the " room" on the Sub-menu ( TEMPERATURE ),then press the right button.
Use UP and DOWN button to adjust the " ROOM CURVE".
21
IfyouwishtochangetheCURVEvalue:
1.Open the main menu INFORMATION by pressing the right-hand button once. You will find the cursor
at the sub-menu named OPERATION
2.Press the ”down” button to move the cursor to the sub-menu called HEAT CURVE.
3.Press the right-hand button once to open the menu. You will find the cursor at the parameter CURVE
4.Open the selected parameter by pressing the right-hand button once.
5.Increase or reduce the preset value using the ”up” or ”down” button. You will see from the diagram how
the gradient of CURVE changes.
Press the left-hand button three times to return to the main menu.
How to change the slope—two points decide one beeline, point one is (0,40), the other point could be
(18,24), the point (18,24) is not changing when changing the slope, because factory setting is that
heat pump stops when outdoor ambient temperature is 18ć, so the feed water temperature should be
24ć.
CURVE is program that adjusts feed water temperature according outdoor ambient temperature,
factory setting is ambient temperature 0ć as feed water temperature 40ć, that is CURVE =40; the
value of CURVE is adjustable from 22ć to 56ć.