ecoTEC pro - Vaillant

Code Parameters Adjustable values
Adapting the boiler to the heating installation
D.000 Heating partial load Adjustable heating partial load in kW
Auto: Boiler automatically adjusts max. partial load to current
system demand
Factory
setting
Auto
Your own
setting
D.001 Overrun time of internal pump for
heating mode
1 - 60 min 5 min
D.002 Max. burner anti-cycling time heating
at 20 °C flow temperature
2 - 60 min 20 min
D.003 Outlet temp. actual value in °C Not adjustable
D.004 Measured value of hot water sensor Not relevant Not adjustable
D.005 Flow temperature target value (or
return target value)
D.006 Hot water temperature target value
(VUW boilers only)
D.007 Warm start temperature target value
(only with VUW boilers)
Cylinder temperature target value
(only with VU boilers)
In °C, max. of the value set in d.71, limited by an eBUS controller
if connected)
Not adjustable
35 to 65 °C Not adjustable
40 to 65 °C
15 °C frost protection, then 40 to 70 °C;
(max. temperature can be adjusted under D.020)
D.008 Room thermostat at terminal RT Room thermostat open (no heat requirement)
Room thermostat closed (heat requirement)
D.009 Target value from external eBus controller
Not adjustable
Not adjustable
in °C Not adjustable
D.010 Status of internal pump 1 = on, 0 = off Not adjustable
D.011 Status of external heating pump 1 to 100 = on, 0 = off Not adjustable
D.012 Status of cylinder charge pump Not relevant Not adjustable
D.013 Status of hot water circulation pump Not relevant Not adjustable
D.014 Target pump speed (high-efficiency
pump)
D.015 Actual pump speed (high-efficiency
pump)
D.016 Room thermostat 24 V DC open/
closed
D.017 Heating flow/return regulation
changeover
Not relevant Not adjustable
Not relevant Not adjustable
0 = Room thermostat open (no heating mode)
1 = Room thermostat closed (heating mode)
0 = Flow, 1 = Return 0
Not adjustable
D.018 Pump operating mode setting 1 = Comfort (continuously operating pump)
3 = Eco (intermittently operating pump)
3
D.019 Operating mode of 2-stage pump Not relevant Not adjustable
D.020 Max. setting for cylinder target value Not relevant Not adjustable
D.022 Hot water demand via C1/C2, internal
hot water control system
D.023 Summer/winter operating mode (heating
on/off)
D.025 Hot water generation enabled by eBUS
controller
Not relevant Not adjustable
1 = Heating on, 0 = Heating off (summer mode) Not adjustable
1 = Yes, 0 = No Not adjustable
D.026 Auxiliary relay control Not relevant Not adjustable
11.1 Diagnosis codes
Installation and maintenance instructions ecoTEC pro 0020129672_03 39
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