Adapting the boiler to the heating installation
50 Installation and maintenance instructions ecoTEC plus 0020116700_01
11
Code Parameters Adjustable values
Factory
setting
Your own
setting
D.000 Heating partial load Adjustable heating partial load in kW
Auto: Boiler automatically adjusts max. partial load to cur-
rent system demand
Auto
D.001 Overrun time of internal heating 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 In °C Not
adjustable
D.005 Flow temperature target value
(or return target value)
In °C, max. of the value set in d.71, limited by an eBUS con-
troller if connected)
Not
adjustable
D.006 Hot water temperature target value
(VUW boilers only)
35 to 65 °C Not
adjustable
D.007 Warm start temperature target value
(only with VUW boilers)
Cylinder temperature target value
(only with VU boilers)
40 to 65 °C
15 °C frost protection, then 40 to 70 °C;
(max. temperature can be adjusted under D.020)
Not
adjustable
D.008 Room thermostat at terminal RT Room thermostat open (no heat requirement)
Room thermostat closed (heat requirement)
Not
adjustable
D.009 Target value from external eBus con-
troller
In °C Not
adjustable
D.010 Status of internal heating pump On, Off Not
adjustable
D.011 Status of external heating pump On, Off Not
adjustable
D.012 Status of cylinder charge pump On, Off Not
adjustable
D.013 Status of hot water circulation pump On, Off Not
adjustable
D.014 Target pump speed
(high-efficiency pump)
Not relevant Not
adjustable
D.015 Actual pump speed
(high-efficiency pump)
Not relevant Not
adjustable
D.016 Room thermostat 24 V DC open/
closed
Heating mode Off/On Not
adjustable
D.017 Heating flow/return regulation
changeover
Control type: flow, return Flow
D.018 Pump operating mode setting Comfort (continuously operating pump)
Eco (intermittently operating pump)
Eco
D.019 Operating mode of 2-stage 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
2
D.020 Max. setting for cylinder target value Setting range: 50 °C - 70 °C (actoSTOR 65 °C) 65 °C
D.022 Hot water requirement via C1/C2,
impeller or APC
On, Off Not
adjustable
D.023 Summer/winter operating mode
(heating on/off)
Heating on, heating off (summer mode) Not
adjustable
D.025 Hot water generation enabled by
eBUS controller
On, Off Not
adjustable
11.1 Diagnosis codes
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