Vaillant ecoTEC VU Installation And Maintenance Instructions Manual page 44

11 Adapting the boiler to the heating installation
Code Parameters
D.000 Heating partial load
D.001 Overrun time of internal 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
(VUW boilers only)
D.007 Warm start temperature target value
(only with VUW boilers)
Cylinder temperature target value
(only with VU boilers)
D.008 Room thermostat at terminal RT
D.009 Target value from external eBus con-
troller
D.010 Status of internal 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 demand via C1/C2, internal
hot water control system
D.023 Summer/winter operating mode (heat-
ing on/off)
D.025 Hot water generation enabled by eBUS
controller
D.026 Auxiliary relay control
11.1 Diagnosis codes
44
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
Not relevant
In °C, max. of the value set in d.71, limited by an eBUS con-
troller if connected)
35 to 65 °C
40 to 65 °C
15 °C frost protection, then 40 to 70 °C;
(max. temperature can be adjusted under D.020)
Room thermostat open (no heat requirement)
Room thermostat closed (heat requirement)
in °C
1 = on, 0 = off
1 to 100 = on, 0 = off
Not relevant
Not relevant
Not relevant
Not relevant
0 = Room thermostat open (no heating mode)
1 = Room thermostat closed (heating mode)
0 = Flow, 1 = Return
1 = Comfort (continuously operating pump)
3 = Eco (intermittently operating pump)
Not relevant
Not relevant
Not relevant
1 = Heating on, 0 = Heating off (summer mode)
1 = Yes, 0 = No
Not relevant
Installation and maintenance instructions ecoTEC 0020173113_01
Factory Your own
setting 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
0
3
Not adjusta-
ble
Not adjusta-
ble
Not adjusta-
ble
Not adjusta-
ble
Not adjusta-
ble
Not adjusta-
ble