Appendix
0020233500_01 auroCOMPACT Installation and maintenance instructions
49
No.
Work
Inspection
(annual)
Mainten-
ance
(at least
every
2 years)
20
Perform a test operation of the product and heating installation, including hot water generation,
and purge the system once more if necessary.
X
X
21
Check the type of gas.
X
22
Carry out a visual inspection to check the ignition and combustion.
X
X
23
Check the CO
₂
content (the air ratio) of the product again.
X
24
Ensure that there is no gas, flue gas, hot water, condensate or solar fluid leaking from the
product. If required, intercept the leakage.
X
X
25
Check the solar fluid level and top it up, if necessary.
X
26
Check the fill level in the glycol container and the pressure in the glycol circuit.
If the pressure is below 1 bar, manually actuate the air trap and correct the glycol fill level.
X
X
27
Record the inspection/maintenance work carried out.
X
X
E
Status codes
–
Overview
Status code
Meaning
Heating mode
S.00
Heating mode: No heat demand.
S.01
Heating mode: Fan start-up.
S.02
Heating mode: Pump start.
S.03
Heating mode: Burner ignition.
S.04
Heating mode: Burner on.
S.05
Heating mode: Pump/fan overrun.
S.06
Heating mode: Fan overrun
S.07
Heating mode: Pump overrun
S.08
Heating mode: Remaining burner anti-cycling time.
S.09
Heating calibration routine/modulation cut-off time.
DHW mode
S.20
DHW demand.
S.21
DHW mode: Fan start-up.
S.22
DHW mode: Pump pre-run.
S.23
DHW mode: Burner ignition.
S.24
DHW mode: Burner on.
S.25
DHW mode: Pump/fan overrun.
S.26
DHW mode: Fan overrun
S.27
DHW mode: Pump overrun
S.28
Hot water burner anti-cycling time.
S.29
Hot water calibration routine/modulation cut-off time.
Special cases
S.30
Room thermostat is blocking heating mode.
S.31
Summer mode activated or no heat requirement from the eBUS controller.
S.32
Waiting mode because of fan speed deviation.
S.34
Frost protection mode active.
S.35
Unit in waiting period because of fan block due to speed being too high or too low.
S.36
Controller target value constantly < 20 °C, the external controller is blocking heating mode.
S.37
Fan speed deviation in operation too high.
S.39
The burner's stop contact (e.g. safety thermostat for underfloor heating or condensate pump) has been triggered.
S.40
Operation in comfort protection mode: Unit in operation, limited heating comfort. For example, underfloor heating (con-
tact thermostat).
