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Code
Parameter
D.027
Accessory relay 1
D.028
Accessory relay 2
D.029
Water circulation vol. ac-
tual value
D.033
Fan speed target value
D.034
Fan speed actual value
D.035
3-way valve position
D.036
DHW flow rate
D.039
Solar inlet temp. actual
value
D.040
Flow temperature actual
value
D.041
Return temperature actual
value
D.044
Ionisation value actual
value
D.046
Pump mode
D.047
Current outside temperat-
ure
D.050
Offset min. speed
D.051
Offset max. speed
D.052
Min. gas valve steps offset
0020189875_01 ecoTEC exclusive Installation and maintenance instructions
Values
Unit
Increment, select, explanation
Min.
Max.
–
1
10
Switching of relay 1 on the VR 40
"2 in 7" multi-functional module
1 = Circulation pump
2 = External pump
3 = Cylinder charging pump
4 = Extraction hood
5 = External solenoid valve
6 = External fault message
7 = Solar pump (not active)
8 = eBUS remote control (not act-
ive)
9 = Anti-legionella pump (not act-
ive)
10 = Solar valve (not active)
–
1
10
Switching of relay 2 on the VR 40
"2 in 7" multi-functional module
1 = Circulation pump
2 = External pump
3 = Cylinder charging pump
4 = Extraction hood
5 = External solenoid valve
6 = External fault message
7 = Solar pump (not active)
8 = eBUS remote control (not act-
ive)
9 = Anti-legionella pump (not act-
ive)
10 = Solar valve (not active)
Current value
m³/h
Actual value: Circulation water
volume for flow sensor
–
Current value
rpm
–
Current value
rpm
–
Current value
Position of the prioritising diverter
valve
0. Heating mode
1: Parallel operation (mid-position)
2: DHW mode
–
Current value
l/min
–
Current value
°C
–
Current value
°C
–
Current value
°C
–
Current value
> 800 = No flame
< 400 = Good flame
–
0
1
0 = Relay with disable facility
1 = PWM with disable facility
Current value
°C
(with Vaillant weather-compensated
control)
0
3000
rpm
Nominal value set in factory
-990
0
rpm
Nominal value set in factory
–
0
99
The offset is specified at the gas
valve assembly.
1
Appendix
Default
Own
setting
setting
2
2
–
Not ad-
justable
–
Not ad-
justable
–
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
–
–
–
35
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