Appendix; A Check Programmes - Overview; B Overview Of Diagnostics Codes - Vaillant home combi Installation And Maintenance Instructions Manual

Appendix

Appendix
Check programmes – Overview
A
Note
Since the programme table is used for various products, some programmes may not be visible for the product in
question.
Display Meaning
P.01 Burner operation on adjustable heat input:
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 Burner operation at ignition load:
After ignition, the product works at ignition load.
The function is active for 15 minutes.
P.03 The product runs in heating mode with the maximum heat input set using diagnostics code d.00.
P.04 Maximum output function:
If there is a hot water request, the product runs in hot water handling mode and at maximum heat load.
If there is no hot water request, the product runs with the heating partial load that is set via diagnostics code
d.00 and in heating mode.
The function is active for 15 minutes.
P.05 Filling the product:
The diverter valve moves to the mid-position. The burner and pump switch off (to fill or drain the product).
If the pressure is lower than 0.03 MPa (0.3 bar) and then is above 0.05 MPa (0.5 bar) for longer than 15
seconds, the automatic purging function is activated.
The function is active for 15 minutes.
P.06 Purging the heating circuit:
The diverter valve is moved to the heating position.
The function is activated in the heating circuit for 15 minutes.
The pump runs and stops at regular intervals.
If required, this function can be manually switched off.
P.07 Purging the hot water circuit:
The function is activated in the small hot water circuit for 4 minutes and then in the heating circuit for 1 minute.
The pump runs and stops at regular intervals.
If required, this function can be manually switched off.
Automatic air vent Purging the product:
function
If the pressure is lower than 0.03 MPa (0.3 bar) and then is above 0.05 MPa (0.5 bar) for longer than 15
seconds, the automatic purging function is activated.
The function is activated in the small hot water circuit for 4 minutes and then in the heating circuit for 1 minute.
This function cannot be manually switched off.
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 Parameter
code
d.00 Heating maximum output
d.01 Pump overrun in heating
mode
30
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
Installation and maintenance instructions HOME 0020224355_00
Default set- User-spe-
ting cific setting
→ Section
Adjustable
"Technical
data"
5 Adjustable