Vaillant ecoFIT pure Series Installation And Maintenance Instructions Manual page 41

Dia-
gnostics Parameter
code
d.14 Operating mode of the
modulating pump
d.15 Pump speed
d.16 Status of the 24 V room
thermostat
d.17 Heating control
d.18 Pump overrun operating
mode
d.19 Pump operating mode, 2
stage pump
d.20 Maximum hot water set
target temperature
d.21 Status of the warm start
for hot water
d.22 Status of the hot water
request
d.23 Status of the heating
demand
d.24 Status of the pressure
monitor
d.25 Status of the requirement
to reheat the cylinder or
for the hot water warm
start from the eBUS ther-
mostat
d.27 Function of relay 1
(multi-functional module)
0020230531_06 ecoFIT pure Installation and maintenance instructions
Values
Unit Increment, select, explanation
Min. Max.
–
0 5 0 = variable rotational speed
(auto)
1; 2; 3; 4; 5 = Fixed rotational
speeds → Section "Setting the
pump output"
–
Current value %
–
Current value off = Heating off
on = Heating on
– – –
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.)
–
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)
–
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
℃
50 60 1
–
Current value off = Function deactivated
on = Function activated and
available
–
Current value off = No current requirement
on = Current requirement
–
Current value off = Heating off (Summer mode)
on = Heating on
–
0 1 off = Not switched
on = Switched
–
Current value off = Function deactivated
on = Function activated
–
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
Default set-
Own setting
ting
0 Adjustable
–
Not
adjustable
–
Not
adjustable
0 Adjustable
1 Adjustable
3 Adjustable
60 Adjustable
–
Not
adjustable
–
Not
adjustable
–
Not
adjustable
–
Not
adjustable
–
Not
adjustable
1 Adjustable
41