Vaillant 0010020392, Installation And Maintenance Instructions Manual

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0020230529_05 ecoFIT sustain Installation and maintenance instructions
39
# Maintenance work Interval
28 Checking the pre-charge pressure of the expansion vessel at regular intervals
34
29 Check the water flow rate (domestic hot water). Insufficient water flow
rate
→
Check the incoming water supply. Incoming water supply sufficient,
water flow rate too low
→
Clean or replace the strainer in the cold water
inlet
Annually
30 Check the impeller sensor for dirt/damage and, if required, replace it Annually
31 Reassemble the product After each time maintenance
work is carried out
32 Open the service valves, carry out the required leak-tightness test Annually
33 Fill the product/heating installation to the filling pressure specified for the
system Annually
34 Connect the product to the electrical installation Annually
35 Run the test operation on the product/heating installation including hot
water generation (if available) and, if required, purge the product/heating
installation Annually
36 Measure the CO content, CO
₂
content and the CO/CO
₂
ratio again Annually
B Overview of diagnostics codes
Note
Since the code table is used for various products, some codes may not be visible for the product in question.
Dia-
gnostics
code
Parameter
Values
Unit Increment, select, explanation
Default set-
ting
Own setting
Min. Max.
d.00 Heating maximum output
– –
kW The maximum heating output
varies depending on the product.
→
Section "Technical data"
Automatic: Unit automatically
adjusts the maximum output to
the current system demand
→
Section
"Technical
data"
Adjustable
d.01 Pump overrun in heating
mode 1 60 min 1 5 Adjustable
d.02 Maximum burner anti-
cycling time in heating
mode 2 60 min 1 20 Adjustable
d.04 Water temperature in the
cylinder Current value
℃ – –
Not
adjustable
d.05 Determined heating flow
set target temperature
Current value
℃ – –
Not
adjustable
d.06 Hot water set target tem-
perature Current value
℃
(Combination unit only)
–
Not
adjustable
d.07 Set target temperature
for the domestic hot wa-
ter cylinder Current value
℃ – –
Not
adjustable
d.08 Status of the 230 V ther-
mostat Current value
–
0 = Room thermostat open (no
heat requirement)
1 = Room thermostat closed
(heat requirement)
–
Not
adjustable
d.09 Heating flow set target
temperature that is set
on the eBUS room ther-
mostat Current value
℃ – –
Not
adjustable
d.10 Status of the internal
pump in the heating cir-
cuit Current value
–
off / on
–
Not
adjustable
d.11 Status of the heating
circuit's shunt pump Current value
–
off / on
–
Not
adjustable
d.13 Status of the hot water
circuit's circulation pump Current value
–
off / on
–
Not
adjustable