B Check Programmes - Overview; C Overview Of Diagnostics Codes - Vaillant ecoTEC sustain 24 Installation And Maintenance Instructions Manual

# Maintenance work
32 Checking leak-tightness
33 Completing inspection and maintenance work
Check programmes – Overview
B
Display Meaning
P.00 Purging the domestic hot water and heating circuit:
The function is activated in the small domestic hot water circuit for three minutes and then in the heating circuit
for one minute.
The pump runs and stops at regular intervals.
If required, this function can be manually switched off.
P.01 The burner operates with an adjustable heat input in heating or domestic hot water mode:
The product operates after ignition with the heat input set between "0" (0% = Pmin) and "100" (100% = Pmax).
The function is active for 15 minutes.
P.02 The burner operates at ignition load in heating or domestic hot water mode:
After ignition, the product works at ignition load.
The function is active for 15 minutes.
P.06 Filling the product:
The prioritising diverter valve is moved to the mid-position. The burner and pump switch off (to fill or drain the
product).
Automatic air vent Purging the product:
function
If the pressure is lower than 0.03 MPa (0.3 bar) for longer than 15 seconds and then is above 0.07 MPa (0.7
bar), the automatic purging function is activated.
The function is activated in the small hot water circuit for four minutes and then in the heating circuit for six
minutes.
This function cannot be manually switched off.
C 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 Parameter
code
d.00 Maximum heating output
is fixed or adjusts auto-
matically
d.01 Pump overrun time in
heating mode
d.02 Maximum burner anti-
cycling time in heating
mode
d.04 Water temperature in the
cylinder
d.05 Determined target heat-
ing flow temperature
d.06 Target domestic hot wa-
ter temperature
d.07 Target temperature for
the domestic hot water
cylinder
0020253094_05 ecoTEC sustain Installation and maintenance instructions
Values
Unit Increment, select, explanation
Min. Max.
– –
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
1 60 min 1
2 60 min 1
℃
Current value Applies to: Product with heat-
ing mode only, connected to do-
mestic hot water cylinder with
temperature sensor
℃ –
Current value
℃
Current value Applies to: Combi boiler
℃
Current value Applies to: Product with heat-
ing mode only, connected to do-
mestic hot water cylinder with
temperature sensor
Interval
Annually
Annually
Factory set-
ting
→ Section
"Technical
data"
5
20
–
–
–
–
39
Own setting
Adjustable
Adjustable
Adjustable
Not
adjustable
Not
adjustable
Not
adjustable
Not
adjustable
45