8
Climate Related Curves
The climate related curves can be selected in the user interface,
MENU > PRESET
TEMPERATURE > WEATHER TEMP. SET
.
The curves for heating mode and ECO heating mode are the same but the default
curve is curve 4 in heating mode, while in ECO mode, the default curve is curve 6.
The curves for cooling mode and ECO cooling mode are the same but the default
curve is curve 4 in cooling mode, while in ECO mode, the default curve is curve 6.
Once the curve is selected, the leaving water set temperature (T1s) is determined by
the outdoor temperature. In each mode, each curve from the eight curves in the
user interface can be selected. The relationship between outdoor ambient
temperature (T4) and leaving water set temperature (T1s) is described as in Figure
3-8.2, Figure 3-8.3, Figure 3-8.4 and Figure 3-8.5.
Figure 3-8.2: Low temperature curves for heating mode
1
Le
av
in
g
w
at
er
se
t t
em
pe
ra
tu
re (
⁰
C
)
Outdoor ambient temperature (
⁰
C )
Notes:
1.
It only has the curves of the high temperature setting for heating, if the low temperature is set for heating.
2.
Curve 4 is default in low temperature heating mode and curve 6 is default in ECO mode.
23
25
27
29
31
33
35
37
39
-25
-15
-5
5
15
25
35
1
2
3
4
5
6
7
8
T4(
℃
)
T1s(°C)
Figure 3-8.1:
WEATHER TEMP. SET menu
82
