Adapting The Unit To The Heating Installation; Calling Up Diagnostics Codes; Burner Anti-Cycling Time; Setting The Maintenance Interval - Vaillant ecoTEC exclusive VC 156/5‑7 N-DE Installation And Maintenance Instructions Manual

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8 Adapting the unit to the heating installation

Adjust the target temperature for the connected do-
mestic hot water cylinder to the controller.
The boiler adopts the set target temperature which is
set on the controller.
8
Adapting the unit to the heating
installation
To reset the most important system parameters, use the
Appliance config. menu item.
Menu → Installer level → Appliance config.
Or manually relaunch the installation assistant.
Menu → Installer level → Start inst. assistant
8.1

Calling up diagnostics codes

The settings options for more complex systems can be found
in the Diagnostics menu.
Menu → Installer level → Diagnostics menu
Overview of diagnostics codes (→ Page 35)
You can use the parameters that are marked as adjustable
in the overview of diagnostics codes to adapt the product to
the heating installation and the needs of the customer.
8.2

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).
8.2.1
Setting the burner anti-cycling time
Navigate to Menu → Installer level → Diagnostics
1.
menu → D.002 Max. anti-cycl. time: Heating and con-
firm by pressing
.
2.
Set the burner anti-cycling time and confirm by pressing
.
T
Set maximum burner anti-cycling time [min]
Flow
(tar-
get)
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
22
10
15
20
25
30
8.5
12.5
16.5
20.5
25.0
7.5
11.0
15.0
18.5
22.0
6.5
10.0
13.0
16.5
19.5
6.0
8.5
11.5
14.0
17.0
5.0
7.5
9.5
12.0
14.0
4.5
6.0
8.0
10.0
11.5
3.5
5.0
6.0
7.5
9.0
2.5
3.5
4.5
5.5
6.5
2.0
2.5
2.5
3.0
3.5
1.0
1.0
1.0
1.0
1.0
Set maximum burner anti-cycling time
T
Flow
[min]
(target)
[°C]
35
30
29.0
35
25.5
40
22.5
45
19.5
50
16.5
55
13.5
60
10.5
65
7.0
70
4.0
75
1.0
8.2.2
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.
Alternatives 2:
1.
Press the Fault clearance
8.3

Setting the maintenance interval

Navigate to Menu → Installer level → Diagnostics
1.
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
.
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
3 ‑ 4
20.0 kW
4 ‑ 5
3 ‑ 4
25.0 kW
4 ‑ 6
3 ‑ 4
> 27.0 kW
4 ‑ 6
Installation and maintenance instructions ecoTEC exclusive 0020186710_06
40
45
50
55
33.0
37.0
41.0
45.0
29.5
33.0
36.5
40.5
26.0
29.0
32.0
35.5
22.5
25.0
27.5
30.5
18.5
21.0
23.5
25.5
15.0
17.0
19.0
20.5
11.5
13.0
14.5
15.5
8.0
9.0
10.0
11.0
4.5
5.0
5.5
6.0
1.0
1.0
1.0
1.0
button.
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)
1050 h
1150 h
1500 h
1600 h
1800 h
1900 h
2600 h
2700 h
2800 h
2900 h
3000 h
3000 h
60
49.5
44.0
38.5
33.0
28.0
22.5
17.0
11.5
6.5
1.0

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