Technical data

Adapting the boiler to the heating installation
50 Installation and maintenance instructions ecoTEC plus 0020116700_06
11
Code Parameters Adjustable values
Factory
setting
Your own
setting
D.026 Auxiliary relay control Circulation pump
External pump
Cylinder charging pump
Extractor hood
External solenoid valve
External fault message
Solar pump (not active)
eBUS remote control (not active)
Legionella protection pump (not active)
Solar valve (not active)
External
pump
D.027 Switching of relay 1 on the "2 in 7" multi-
functional module VR 40
Circulation pump
External pump
Cylinder charging pump
Extractor hood
External solenoid valve
External fault message
Solar pump (not active)
eBUS remote control (not active)
Legionella protection pump (not active)
Solar valve (not active)
External
pump
D.028 Switching of relay 2 on the "2 in 7"
multi-functional module VR 40
Circulation pump
External pump
Cylinder charging pump
Extractor hood
External solenoid valve
External fault message
Solar pump (not active)
Remote control eBUS (not active)
Legionella protection pump (not active)
Solar valve (not active)
External
pump
D.033 Fan speed target value In rpm Not adjustable
D.034 Fan speed actual value In rpm Not adjustable
D.035 Position of the diverter valve Heating mode
Parallel operation
DHW mode
Not adjustable
D.036 Hot water flow quantity (impeller sen-
sor)
In l/min Not adjustable
D.039 Solar feed temperature Actual value in °C Not adjustable
D.040 Flow temperature Actual value in °C Not adjustable
D.041 Return temperature Actual value in °C Not adjustable
D.044 Digitised ionisation value Display range 0 to 1020,
> 800 no flame
< 400 good flame
Not adjustable
D.046 Pump type Disable via relay
Disable via PWM
Disable via
relay
D.047 Outside temperature (with weather-con-
trolled Vaillant controller)
Actual value in °C Not adjustable
D.050 Offset for minimum speed In rpm, setting range: 0 to 3000 Nominal value
set in factory
D.051 Offset for maximum speed In rpm, setting range: -990 to 0 Nominal value
set in factory
D.058 Activation of solar post-heating for VUW
boilers;
Switch hot water mode
Solar post-heating mode deactivated
DHW activation target value minimum 60 °C
Solar post-
heating mode
deactivated
11.1 Diagnosis codes (continued)