Vaillant ecoTEC plus VUI Installation And Maintenance Instructions Manual page 51

Code Parameters
D.000 Heating partial load
D.001 Overrun time of internal heating pump
for heating mode
D.002 Max. burner anti-cycling time heating
at 20 °C flow temperature
D.003 Outlet temp. actual value
D.004 Measured value of hot water sensor
D.005 Flow temperature target value (or
return target value)
D.006 Hot water temperature target value
D.007 Warm start temperature target value
D.008 Room thermostat at terminal RT
D.009 Target value from external eBus con-
troller
D.010 Status of internal heating pump
D.011 Status of external heating pump
D.012 Status of cylinder charge pump
D.013 Status of hot water circulation pump
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
D.018 Pump operating mode setting
D.019 Operating mode of 2-stage pump
D.020 Max. setting for cylinder target value
D.022 Hot water requirement via C1/C2,
impeller or APC
D.023 Summer/winter operating mode (heat-
ing on/off)
D.025 Hot water generation enabled by
eBUS controller
11.1 Diagnostics codes
Installation and maintenance instructions ecoTEC plus 0020134833_01
Adapting the boiler to the heating installation
Adjustable values
Adjustable heating partial load in kW
Auto: Boiler automatically adjusts max. partial load to cur-
rent system demand
1 - 60 min
2 - 60 min
In °C
In °C
In °C, max. of the value set in d.071, limited by an eBUS
controller if connected
35 to 65 °C
40 to 65 °C
Room thermostat open (no heat requirement)
Room thermostat closed (heat requirement)
In °C
On, Off
On, Off
On, Off
On, Off
Not relevant
Not relevant
Heating mode Off/On
Control type: flow, return
Comfort (continuously operating pump)
Eco (intermittently operating pump)
Setting for operating mode of 2-stage pump:
0 = Burner operation = stage 2, Flow/overrun = stage 1;
1 = Heating + Overrun = stage 1, Hot water = stage 2,
2 = Like 1, but rotational speed during heating mode
depending on heating partial load,
3 =Always stage 2
4 = Rotational speed during heating mode depending on
heating partial load, otherwise always stage 1
Setting range: 50 °C - 65 °C
On, Off
Heating on, heating off (summer mode)
On, Off
11
Factory set- Your own
ting setting
Auto
5 min
20 min
Not adjusta-
ble
Not adjusta-
ble
Not adjusta-
ble
Not adjusta-
ble
Not adjusta-
ble
Not adjusta-
ble
Not adjusta-
ble
Not adjusta-
ble
Not adjusta-
ble
Not adjusta-
ble
Not adjusta-
ble
Not adjusta-
ble
Not adjusta-
ble
Not adjusta-
ble
Flow
Eco
2
65 °C
Not adjusta-
ble
Not adjusta-
ble
Not adjusta-
ble
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