B Overview Of Diagnostics Codes - Vaillant ecoFIT pure 412 Installation And Maintenance Instructions Manual

# Maintenance work
25 Check and, if required, replace the insulating mat in the burner area
26 Installing the gas-air mixture unit
27 Reassemble the product
28 Open the service valves, carry out the required leak-tightness test
29 Fill the product/heating installation to the filling pressure specified for the
system
30 Connect the product to the electrical installation
31 Run the test operation on the product/heating installation including hot
water generation (if available) and, if required, purge the product/heating
installation
32 Record all of the analysis results in the Benchmark service record in
these instructions
B Overview of diagnostics codes
Setting level
d.00 Heating maximum output
d.01 Pump overrun in heating
mode
d.02 Burner anti-cycling time
in heating mode
d.04 Water temperature in the
cylinder
d.05 Determined heating flow
set target temperature
d.07 Set target temperature
for the domestic hot water
cylinder
d.08 Status of the 230 V ther-
mostat
d.09 Heating flow set target
temperature that is set on the
eBUS room thermostat
d.10 Status of the internal
pump in the heating circuit
d.11 Status of the heating cir-
cuit's shunt pump
d.13 Status of the hot water
circuit's circulation pump
d.16 Status of the 24 V room
thermostat
d.17 Heating control
d.18 Pump overrun operating
mode
0020230535_05 ecoFIT pure Installation and maintenance instructions
Values
Unit
Min. Max.
– –
kW
1 60 min
2 60 min
℃
Current value
℃
Current value
℃
Current value
–
Current value
–
Current value
–
Current value
–
Current value
–
Current value
–
Current value
– – –
–
1 3
Interval
If required, at least every
5 years
If required, at least every
5 years
After each time maintenance
work is carried out
Annually
Annually
Annually
Annually
Annually
Increment, select, explanation
The maximum heating output varies
depending on the product.
→ Section "Technical data"
1
1
–
–
–
0 = Room thermostat open (no heat
requirement)
1 = Room thermostat closed (heat
requirement)
–
off / on
off / on
off / on
off = Heating off
on = Heating on
off = Flow temperature
on = Return temperature (adjustment
for underfloor heating. If you have ac-
tivated the return temperature control,
the automatic heating output determ-
ination function is not active.)
1 = Comfort (continuously operating
pump)
3 = Eco (intermittent pump mode –
for the dissipation of the residual heat
after hot water generation at an ex-
tremely low heat demand)
Appendix
25
Default set-
Own setting
ting
→ Section
Adjustable
"Technical
data"
5 Adjustable
20 Adjustable
–
Not
adjustable
–
Not
adjustable
–
Not
adjustable
–
Not
adjustable
–
Not
adjustable
–
Not
adjustable
–
Not
adjustable
–
Not
adjustable
–
Not
adjustable
0 Adjustable
1 Adjustable
27