Appendix; A Diagnostics Code - Overview - Vaillant ecoTEC plus VC 406/5-5 Installation And Maintenance Instructions Manual

Appendix

Diagnostics code – overview
A
Note
Since the code table is used for various products, some codes may not be visible for the product in question.
Code Parameter
D.000 Partial heating load
D.001 Overrun time for the internal pump
after a heat demand
D.002 Max. burner anti-cycling time in heat-
ing mode at 20 °C flow temperature
D.003 Domestic hot water temperature
D.004 Measured value for the cylinder
temperature in °C
D.005 Target value for the heating flow
temperature (or target value for the
return) in °C
D.007 Target value for the domestic hot
water cylinder temperature in °C
D.009 Heating flow temperature, target
value from external eBUS controller
D.010 Status of the internal heating pump
D.011 Status of additional external heating
pump
D.012 Status of cylinder charging pump
D.013 Status of circulation pump
D.014 Setting for speed-controlled internal
heating pump
D.015 Current speed of the internal heating
pump in %
D.016 24 V DC room thermostat
open/closed
D.017 Heating control type
D.018 Pump mode setting
D.020 Max. set value for target cylinder
value
D.022 Domestic hot water demand
D.023 Heating demand
D.024 Status of the air pressure monitor
0020261188_00 ecoTEC plus Installation and maintenance instructions
Values or explanations
Adjustable partial heating load in kW
Auto: The product automatically adjusts the maximum
partial load to the current system demand.
2 ... 60 min
2 ... 60 min
Not connect.
If a domestic hot water cylinder with sensor is connec-
ted
The current target value, maximum value of the para-
meter that is set for D.071, limitation by an eBUS con-
trol, if connected
(15 °C = frost protection, 40 °C up to D.020 (max.
70 °C))
℃
0 = Off
1 = On
0 = Off
1-100 = On
0 = Off
1-100 = On
0 = Off
1-100 = On
0 = auto (pump modulates in accordance with the
control, with constant pressure)
From 1 to 5 = Fixed pump setting
–
1 = 53%
–
2 = 60%
–
3 = 70%
–
4 = 85%
–
5 = 100%
Heating mode off/on
0 = Flow temperature control
1 = Return temperature control
1 = Comfort (continuously operating pump)
3 = Eco (intermittently operating pump)
50 ... 65 ℃
0 = Off
1 = on
0 = Off
1 = on
0 = open
1 = closed
Appendix
Default User-spe-
setting cific setting
Auto
5 min
20 min
Not ad-
justable
Not ad-
justable
Not ad-
justable
Not ad-
justable
Not ad-
justable
Not ad-
justable
Not ad-
justable
0
Not ad-
justable
Not ad-
justable
0
3
65 ℃
Not ad-
justable
Not ad-
justable
Not ad-
justable
39