0020244997_07 Installation and maintenance instructions
39
9.17.3 Checking the domestic hot water generation
Validity:
Product with hot water generation through external domestic hot
water cylinder
1.
Ensure that the cylinder charging mode is requesting
heat.
2.
Call up
Live monitor
.
◁
If the cylinder is charged correctly, the display
shows
S.24
.
3.
If you have connected a Vaillant eBUS control which
can be used to set the domestic hot water temperature,
set the domestic hot water temperature on the boiler to
the maximum possible temperature.
4.
Adjust the target temperature for the connected do-
mestic hot water cylinder to the eBUS control.
◁
The product adopts the target temperature that is
set on the eBUS control.
10 Adapting the unit to the heating
installation
To reset the most important system parameters, use the
Unit configuration
menu item.
Menu
→
Installer level
→
Appliance config.
Or manually relaunch the installation assistant.
Menu
→
Installer level
→
Start inst. assistant
You can find setting options in the
Diagnostics menu
.
Menu
→
Installer level
→
Diagnostics menu
Overview of diagnostics codes (
10.1
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. The burner anti-cycling time is only active
for the heating mode. Hot water handling during a burner
anti-cycling time does not affect the time function element
(default setting: 20 mins).
10.1.1 Setting the burner anti-cycling time
1.
Navigate to
Menu
→
Installer level
→
Diagnostics
menu
→
D.002 Max. anti-cycl. time: Heating
and
confirm by pressing
.
2.
Set the burner anti-cycling time and confirm by press-
ing
.
T
Flow
(tar-
get)
[°C]
Set maximum burner anti-cycling time [min]
1
5
10
15
20
25
30
30
2.0
4.0
8.5
12.5
16.5
20.5
25.0
35
2.0
4.0
7.5
11.0
15.0
18.5
22.0
40
2.0
3.5
6.5
10.0
13.0
16.5
19.5
45
2.0
3.0
6.0
8.5
11.5
14.0
17.0
50
2.0
3.0
5.0
7.5
9.5
12.0
14.0
55
2.0
2.5
4.5
6.0
8.0
10.0
11.5
60
2.0
2.0
3.5
5.0
6.0
7.5
9.0
65
2.0
1.5
2.5
3.5
4.5
5.5
6.5
T
Flow
(tar-
get)
[°C]
Set maximum burner anti-cycling time [min]
1
5
10
15
20
25
30
70
2.0
1.5
2.0
2.5
2.5
3.0
3.5
75
2.0
1.0
1.0
1.0
1.0
1.0
1.0
T
Flow
(target)
[°C]
Set maximum burner anti-cycling time
[min]
35
40
45
50
55
60
30
29.0
33.0
37.0
41.0
45.0
49.5
35
25.5
29.5
33.0
36.5
40.5
44.0
40
22.5
26.0
29.0
32.0
35.5
38.5
45
19.5
22.5
25.0
27.5
30.5
33.0
50
16.5
18.5
21.0
23.5
25.5
28.0
55
13.5
15.0
17.0
19.0
20.5
22.5
60
10.5
11.5
13.0
14.5
15.5
17.0
65
7.0
8.0
9.0
10.0
11.0
11.5
70
4.0
4.5
5.0
5.5
6.0
6.5
75
1.0
1.0
1.0
1.0
1.0
1.0
10.1.2 Resetting the remaining burner anti-cycling
time
1.
Alternatives 1:
▶
Navigate to
Menu
→
Reset anti-cycl. time
.
◁
The current burner anti-cycling time appears in
the display.
▶
Press
to reset the burner anti-cycling time.
1.
Alternatives 2:
▶
Press
.
10.2
Setting the maintenance interval
1.
Navigate to
Menu
→
Installer level
→
Diagnostics
menu
→
D.084 Maintenance in
and confirm by press-
ing
.
2.
Set the maintenance interval (operating hours) until the
next maintenance work is due and confirm by pressing
.
Heat de-
mand
Number
of per-
sons
Guideline value for burner
operating hours until the
next inspection/maintenance
work is due for an average
operating time of one year
(dependent upon the system
type)
5.0 kW
1
‑
2
1050 h
2
‑
3
1150 h
10.0 kW
1
‑
2
1500 h
2
‑
3
1600 h
15.0 kW
2
‑
3
1800 h
3
‑
4
1900 h
20.0 kW
3
‑
4
2600 h
4
‑
5
2700 h
25.0 kW
3
‑
4
2800 h
4
‑
6
2900 h
> 27.0 kW
3
‑
4
3000 h
4
‑
6
3000 h
