Appendix
44 Installation and maintenance instructions Energy
7
0020300877_01
# Maintenance work Interval
27 Reassemble the product After each time maintenance
work is carried out
28 Open the service valves, carry out the required leak-tightness test Annually
29 Fill the product/heating installation to the filling pressure specified for the
system
Annually
30 Connect the product to the electrical installation Annually
31 Run the test operation on the product/heating installation including hot
water generation (if available) and, if required, purge the product/heating
installation
Annually
32 Measure the CO content, CO₂ content and the CO/CO₂ ratio again Annually
B Check programmes – Overview
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 Start up the burner at the adjustable heat input:
The product is operated after a successful ignition with the set heat input between "0" (0% = Pmin) and
"100" (100% = Pmax).
The function is activated for 15 minutes.
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 Chimney sweep function:
If there is a domestic hot water demand, the product runs in domestic hot water mode with maximum heat input.
If there is no domestic hot water demand, the product runs in heating mode with the partial heat load that is set
using diagnostics code d.00.
The function is activated for 15 minutes.
P.05 Filling the product:
The prioritising 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 prioritising 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 domestic hot water circuit:
The function is activated in the small domestic 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 domestic hot water circuit for 4 minutes and then in the heating circuit for
1 minute.
This function cannot be manually switched off.
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