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7 Adapting the unit to the heating installation
7.5
Setting the maximum flow temperature
You can set the maximum flow temperature for the heating
mode under D.71 (default setting: 75 °C).
7.6
Setting the burner anti-cycling time
To prevent frequent switching on and off of the burner and
thus prevent energy losses, an electronic restart lockout
is activated for a specific period each time the burner is
switched off. You can adjust the burner anti-cycling time to
the conditions of the heating installation. The burner anti-
cycling time is only active for the heating mode. Hot water
handling mode during a burner anti-cycling time does not
affect the time function element. You can set the maximum
burner anti-cycling time under D.2 (default setting: 20 min.).
The effective burner anti-cycling times with respect to the
target flow temperature and the maximum set burner anti-
cycling time can be found in the following table:
T
Set maximum burner anti-cycling time [min]
Flow
(target)
1
5
[°C]
30
2.0
4.0
35
2.0
4.0
40
2.0
3.5
45
2.0
3.0
50
2.0
3.0
55
2.0
2.5
60
2.0
2.0
65
2.0
1.5
70
2.0
1.5
75
2.0
1.0
T
Set maximum burner anti-cycling time [min]
Flow
(target)
35
40
[°C]
30
29.0
33.0
35
25.5
29.5
40
22.5
26.0
45
19.5
22.5
50
16.5
18.5
55
13.5
15.0
60
10.5
11.5
65
7.0
8.0
70
4.0
4.5
75
1.0
1.0
Note
The remaining burner anti-cycling time following a
regular shutdown in heating mode can be called
up under D.67.
24
10
15
20
25
8.5
12.5
16.5
20.5
7.5
11.0
15.0
18.5
6.5
10.0
13.0
16.5
6.0
8.5
11.5
14.0
5.0
7.5
9.5
12.0
4.5
6.0
8.0
10.0
3.5
5.0
6.0
7.5
2.5
3.5
4.5
5.5
2.0
2.5
2.5
3.0
1.0
1.0
1.0
1.0
45
50
55
37.0
41.0
45.0
33.0
36.5
40.5
29.0
32.0
35.5
25.0
27.5
30.5
21.0
23.5
25.5
17.0
19.0
20.5
13.0
14.5
15.5
9.0
10.0
11.0
5.0
5.5
6.0
1.0
1.0
1.0
7.7
Setting the maintenance interval
If you set the maintenance interval, the maintenance mes-
sage SEr appears in the display after a configurable number
of burner operating hours. The display on the eBUS control-
ler shows the information Maintenance.
▶
Use D.84 to set the operating hours until the next main-
tenance work is due. Guideline values can be found in
the following table.
Number
Heat de-
of per-
mand
sons
1 ‑ 2
5.0 kW
2 ‑ 3
1 ‑ 2
10.0 kW
2 ‑ 3
2 ‑ 3
15.0 kW
3 ‑ 4
30
3 ‑ 4
25.0
20.0 kW
4 ‑ 5
22.0
3 ‑ 4
19.5
25.0 kW
4 ‑ 6
17.0
3 ‑ 4
14.0
> 27.0 kW
4 ‑ 6
11.5
9.0
The values stated correspond to an average operating time
of one year.
6.5
If you do not set a numerical value but do set the symbol "–",
3.5
the Maintenance display function is not active.
1.0
Note
On completion of the set operating hours, you
60
must set the maintenance interval again.
49.5
44.0
7.8
Pump diagram
38.5
A
33.0
1200
28.0
1100
22.5
1000
17.0
900
11.5
800
700
6.5
53%
600
1.0
500
400
300
200
100
0
0
500
1000
250
750
A
Pump remaining feed
head in hPa (mbar)
Min. vortex and rated volume flow (ΔT 20 K) are marked.
Installation and maintenance instructions ecoTEC plus 0020214491_01
Burner operating hours until the
next inspection/maintenance work
is due (dependent upon the sys-
tem type)
1050 h
1150 h
1500 h
1600 h
1800 h
1900 h
2600 h
2700 h
2800 h
2900 h
3000 h
3000 h
100%
1500
2000
2500
3000
1250
1750
2250
2750
B
System volume flow in
l/h
B
3500
3250
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- I Technical Data
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