42
Installation and maintenance instructions 0020308121_04
T
Flow
(tar-
get) [°C]
Set maximum burner anti-cycling time
[min]
2
5
10
15
20
25
30
30
2.0
4.5
8.5 12.6 16.7 20.8 24.9
35
2.0
4.2
7.8 11.5 15.1 18.7 22.4
40
2.0
3.9
7.1 19.3 13.5 16.6 19.8
45
2.0
3.6
6.4
9.1 11.8 14.5 17.3
50
2.0
3.4
5.6
7.9 10.2 12.5 14.7
55
2.0
3.1
4.9
6.7
8.5 10.4 12.2
60
2.0
2.8
4.2
5.5
6.9
8.3
9.6
65
2.0
2.5
3.5
4.4
5.3
6.2
7.1
70
2.0
2.3
2.7
3.2
3.6
4.1
4.5
75
2.0
2.0
2.0
2.0
2.0
2.0
2.0
T
Flow
(tar-
get) [°C]
Set maximum burner anti-cycling time
[min]
35
40
45
50
55
60
30
29.0
33.1
37.2
41.3
45.4
49.5
35
26.0
29.6
33.3
36.9
40.5
44.2
40
23.0
26.2
29.4
32.5
35.7
38.9
45
20.0
22.7
25.5
28.2
30.9
33.6
50
17.0
19.3
21.5
23.8
26.1
28.4
55
14.0
15.8
17.6
19.5
21.3
23.1
60
11.0
12.4
13.7
15.1
16.5
17.8
65
8.0
8.9
9.8
10.7
11.6
12.5
70
5.0
5.5
5.9
6.4
6.8
7.3
75
2.0
2.0
2.0
2.0
2.0
2.0
Effective burner anti-cycling times
D.002
at max. target flow
temperature 50 °C
T
Flow
(target) [°C]
Set maximum burner anti-cycling time
[min]
2
5
10
15
20
25
30
30
2.0
4.0
7.3 10.7 14.0 17.3 20.7
35
2.0
3.5
6.0
8.5 11.0 13.5 16.0
40
2.0
3.0
4.7
6.3
8.0
9.7 11.3
45
2.0
2.5
3.3
4.2
5.0
5.8
6.7
50
2.0
2.0
2.0
2.0
2.0
2.0
2.0
T
Flow
(target) [°C]
Set maximum burner anti-cycling time
[min]
35
40
45
50
55
60
30
24.0
27.3
30.7
34.0
37.3
40.7
35
18.5
21.0
23.5
26.0
28.5
31.0
40
13.0
14.7
16.3
18.0
19.7
21.3
45
7.5
8.3
9.2
10.0
10.8
11.7
50
2.0
2.0
2.0
2.0
2.0
2.0
10.3.5 Setting the hydraulic operating mode
Note
Different hydraulic operating modes are available
depending on the product variant.
The heating water volume flow that is established by the
internal heating pump in the heating installation is used to
transfer the heat input. To build up the volume flow, different
hydraulic operating modes are available, which you can se-
lect via
D.170
.
Depending on the setting for diagnostics code
D.170
, fine
adjustments are possible via diagnostics codes
D.171
to
D.175
.
D.172 + 173 + 174
D.171
D.175
2
3
4
z
z
z
z
z
….
….
D.170 setting
Description
2: Bypass,
Δ
p-const.
Constant pressure pump control type
The internal heating pump works in
constant pressure in the heating in-
stallation. The pressure level can be
selected between 100 and 400 mbar
via
D.171
.
The internal circulation valve is only
opened according to requirements in
order to maintain minimum circula-
tion. If required, a maximum opening
pressure can be set via
D.174
.
3: Spread
Δ
T
Spread pump control type
The internal heating pump works at
a temperature spread between the
flow and return temperature. The tar-
get is the spread level of the heating
system and not the pressure sup-
ply. The target value for the spread
is specified via
D.172
.
The work area of the heating pump
for the spread regulation can be set
via
D.173
and
D.174
.
4: Fixed pump stage
Pump curve pump control
The internal pump works on a selec-
ted pump curve. The volume flow
and the pressure for the heating
system result via the pump curve
and the system resistance that is
present. The target value for the
pump curve is specified via
D.175
.
There is no control system for pres-
sure or temperature; the pump works
on a fixed pump curve.
This pump mode is preferred for
homogeneous heat transfer if a low
loss header, decoupling module,
hydraulic cascading and a buffer
cylinder is installed.
Heating system with radiators
Содержание ecoTEC plus VUI Series
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