20
■
Heating curve level = 0
Different level settings shift the curve in parallel in a vertical direction.
■
Standard room temperature = approx. 20 °C
In the delivered condition, the control unit has been programmed as follows:
■
Slope = 1.4
■
Level = 0
0.2
Outside temperature in °C
Boiler
water
or
flow temperature
in °C
Slope
2.4
2.6
2.8
3.0
3.2
3.4
90
80
70
60
50
40
30
0
-10
-20
10
A
B
2.0
2.2
Set room temperature
in °C
35
30
25
20
15
10
5
0.4
0.6
0.8
1.0
1.2
1.4
-30
1.8
1.6
C
-14
Fig.23
Example for an outside temperature of
-14 °C
:
A
Underfloor heating system, slope 0.2 to 0.8
B
Low temperature heating system, slope 0.8 to 1.6
C
Heating system with a boiler water temperature in excess of 75 °C, slope 1.6 to 2.0
Central heating
Heating curve
(cont.)
5677 786 GB
Summary of Contents for Vitotrol 350
Page 43: ...43 5677 786 GB...
