Appendix
26 Installation and maintenance instructions ENERGY 0020177748_03
Display Meaning
P.02 Start up the burner at ignition load:
The product is operated at ignition load after successful ignition.
The function is activated 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 with maximum heat input.
If there is no hot water request, the product runs in heating mode with the heating partial load that is set using
diagnostics code d.00.
The function is activated for 15 minutes.
P.05 Filling the product:
The diverter valve is moved to the mid-position. The burner and pump are switched off (to fill or drain the
product).
If the pressure is lower than 0.05 MPa (0.5 bar) and then is above 0.07 MPa (0.7 bar) for longer than 15
seconds, the automatic purging function is activated.
The function is activated 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.
P.10 Safety cut-out check
Automatic purging
function
Purging the product:
If the pressure is lower than 0.05 MPa (0.5 bar) and then is above 0.07 MPa (0.7 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.
C Overview of diagnostics codes
Setting level 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"
→ Section
"Technical
data"
Adjustable
d.01 Pump overrun in heating
mode
1 60 min 1 5 Adjustable
d.02 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.07 Set target temperature
for the domestic hot water
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 thermostat
Current value – – – Not
adjustable
d.10 Status of the internal
pump in the heating circuit
Current value – off / on – Not
adjustable
d.11 Status of the heating cir-
cuit's shunt pump
Current value – off / on – Not
adjustable
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