Vaillant 0010020392, Installation And Maintenance Instructions Manual

Page: 40 / 56

40
Installation and maintenance instructions ecoFIT sustain 0020230529_05
Dia-
gnostics
code
Parameter
Values
Unit Increment, select, explanation
Default set-
ting
Own setting
Min. Max.
d.14 Operating mode of the
modulating pump 0 5
–
0 = variable rotational speed
(auto)
1; 2; 3; 4; 5 = Fixed rotational
speeds
→
Section "Setting the
pump output"
0 Adjustable
d.15 Pump speed Current value %
– –
Not
adjustable
d.16 Status of the 24 V room
thermostat Current value
–
off = Heating off
on = Heating on
–
Not
adjustable
d.17 Heating control
– – –
off = Flow temperature
on = Return temperature (ad-
justment for underfloor heating.
If you have activated the return
temperature control, the auto-
matic heating output determina-
tion function is not active.) 0 Adjustable
d.18 Pump overrun operating
mode 1 3
–
1 = Continuous (pump runs per-
manently)
3 = Eco (intermittent pump mode
–
for the dissipation of the resid-
ual heat after hot water genera-
tion at an extremely low heat de-
mand)
1 Adjustable
d.19 Pump operating mode, 2
stage pump 0 3
–
0 = Burner mode stage 2, pump
flow/overrun stage 1
1 = Heating mode and pump
flow/overrun stage 1, hot water
handling mode stage 2
2 = Automatic heating mode,
pump flow/overrun stage 1, hot
water handling mode stage 2
3 = Stage 2 3 Adjustable
d.20 Maximum hot water set
target temperature 50 60
℃
1 60 Adjustable
d.21 Status of the warm start
for hot water Current value
–
off = Function deactivated
on = Function activated and
available
–
Not
adjustable
d.22 Status of the hot water
request Current value
–
off = No current requirement
on = Current requirement
–
Not
adjustable
d.23 Status of the heating
demand Current value
–
off = Heating off (Summer mode)
on = Heating on
–
Not
adjustable
d.24 Status of the pressure
monitor 0 1
–
off = Not switched
on = Switched
–
Not
adjustable
d.25 Status of the requirement
to reheat the cylinder or
for the hot water warm
start from the eBUS ther-
mostat Current value
–
off = Function deactivated
on = Function activated
–
Not
adjustable
d.27 Function of relay 1
(multi-functional module) 1 10
–
1 = Circulation pump
2 = External pump
3 = Cylinder charging pump
4 = Extractor hood
5 = External solenoid valve
6 = Fault display
7 = Solar pump (omitted)
8 = eBUS remote control
9 = Legionella protection pump
10 = Solar valve 1 Adjustable