Vaillant ecoTEC exclusive 627 Installation And Maintenance Instructions Manual page 46

Code Parameter
D.007 Cylinder temperature tar-
get value
Comfort mode target value
D.008 Controller 3-4
D.009 eBUS controller target
value
D.010 Internal pump
D.011 External pump
D.012 Cyl. charging pump
D.013 Circulation pump
D.014 Pump speed target value
D.015 Pump speed actual value
D.016 Controller 24 V DC: Heat-
ing mode
D.017 Control type
D.018 Pump operating mode
D.020 Max. DHW temperature
target value
46
Values
Unit
Min. Max.
Current value °C
–
Current value
–
Current value
–
Current value
–
Current value
–
Current value
–
Current value
%
Current value %
–
Current value
–
0 1
–
1 3
50 70 °C
Installation and maintenance instructions ecoTEC exclusive 0020193966_04
Increment, select, explanation
Only products with no integrated
domestic hot water generation and
with a connected cylinder
Only products with integrated do-
mestic hot water generation
0: Open (Room thermostat at ter-
minal RT open = No heat require-
ment)
1: Closed (Room thermostat at ter-
minal RT closed = Heat require-
ment)
Target value from external eBUS
controller
0: Off
1: On
0: Off
1: On
0: Off
1: On
0: Off
1: On
Target value of internal high-effi-
ciency pump. Possible settings:
0 = Auto
1 = 53
2 = 60
3 = 70
4 = 85
5 = 100
High-efficiency pump
Heating mode
0: Off
1: On
Heating flow/return temperature
control changeover
0: Flow
1: Return (conversion for underfloor
heating)
If you have activated the return
temperature control, the function
for automatically limiting the heat
output using the volume flow re-
mains active. The partial heat load
that is selected under D.000 (auto
= max.) continues to be the upper
limit.
Setting
1 = Comfort (continuously operat-
ing pump)
The internal pump is switched on
when the heating flow temperature
is not at Heating off and the heat
requirement is enabled via an ex-
ternal control
3 = Eco (intermittently operating
pump)
Internal pump is switched on every
25 minutes for 5 minutes once the
overrun time has elapsed
Max. set value for target cylinder
value
1
Factory Own
setting setting
–
Not ad-
justable
–
Not ad-
justable
–
Not ad-
justable
–
Not ad-
justable
–
Not ad-
justable
–
Not ad-
justable
–
Not ad-
justable
0 = Auto
–
Not ad-
justable
–
Not ad-
justable
0
3
65