BLAUBERG Ventilatoren S25, Руководство пользователя, Страница: 19 / 20

22
Warning! Heat exchanger freezing danger.
Determined if the supply fan is enabled, the outdoor temperature drops below -3 ˚С and remains below -1 ˚С, and the exhaust air temperature
downstream of the heat exchanger drops below 2 ˚С and remains below 3 ˚С.
23
Warning! The battery is low.
The weekly schedule function will work incorrectly. Determined if no battery is detected or its voltage level drops below 2 V. The battery
voltage level is monitored every 5 minutes.
24
Warning! Replace the supply air filter.
Determined if the pressure switch is triggered closing the discrete input (FILTER IN SU).
25
Alarm! Fire alarm activated.
Determined if the fire alarm sensor is triggered opening the discrete input (L3).
This alarm causes the fans to shut down immediately overriding any prior electric heater blowing commands.
26
Alarm! Low supply air temperature.
Determined if the minimum supply air temperature control function is enabled (the default setpoint is +10 °С configurable within a +5 °С to
+12 °С range), and the supply air temperature remains below the control setpoint for 10 minutes with the condensing unit disabled and the
bypass closed.
27
Alarm! Return water temperature sensor not detected.
Determined if the water heater is enabled as the main heater.
28
Alarm! Short circuit of the return water temperature sensor.
Determined if the water heater is enabled as the main heater.
29
Warning! Replace the extract air filter.
Determined if the pressure switch is triggered closing the discrete input (FILTER IN EXH).
30
Alarm! No water pressure detected.
Determined if no water pressure is detected provided that the water heater and the water pressure sensor are enabled.
31
Alarm! No water flow detected.
Determined if no water flow is detected provided that the water heater and the water flow sensor are enabled.
32
Alarm! Low return water temperature.
33
Alarm! Supply fan cannot provide heat exchanger freezing protection.
Determined if the supply fan is selected for protecting the heat exchanger from freezing and the freezing danger warning has been active for
30 minutes.
34
Alarm! Bypass cannot provide heat exchanger freezing protection.
Determined if the bypass is selected for protecting the heat exchanger from freezing and the freezing danger warning has been active for 30
minutes.
35
Warning! Freeze protection disabled. This may cause heat exchanger freezing!
Determined if the rotary heat exchanger is not enabled and the freeze protection is deactivated.
36
Warning! The main heater is operated in the manual mode.
37
Warning! The cooler is operated in the manual mode.
38
Warning! The bypass is operated in the manual mode.
39
Warning! The rotary heat exchanger is operated in manual mode.
40
Warning! The filter timer countdown is completed. Please, replace the filter.
41
Warning! Incorrect operation of the rotary heat exchanger.
42
Warning! Preheater is operated in the manual mode.
43 Alarm! Return water temperature failed to reach setpoint in due time before AHU start.
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