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S30, S31, S32
17
A020 Supply filters alarm Automatic reset No
A021 th-Tune clock not working Automatic reset No
A022 th-Tune temperature sensor not working Automatic reset Deactivation of indoor air
temperature regulation mode
A023 th-Tune humidity sensor not working Automatic reset Deactivation of indoor air
humidity regulation mode
A024 BMS offline Automatic reset No
A025 Supply differential pressure sensor not working Automatic reset No
A026 Return differential pressure sensor not working Automatic reset No
A027 Fire alarm by digital input Reset by user Unit shutdown, forced switching
of fans to fire speed
A028 Heating coil water temperature sensor not working Automatic reset Unit shutdown, forced switching
to 100% bypass damper opening
A029 Preheating coil water temperature sensor not working Automatic reset Unit shutdown, forced switching
to 100% bypass damper opening
A030 After preheating coil temp.sensor not working Automatic reset Preheater shutdown
A031 Heating device alarm Automatic reset to counter (filter
timer) value (3 times 3600 s)
Heater shutdown
A032 Fire alarm by temperature Reset by user Unit shutdown, forced switching
of fans to fire speed
A033 Antifreeze alarm by heat back water temperature Automatic reset to counter (filter
timer) value (3 times 3600 s)
Unit shutdown, forced switching
to 100% bypass damper opening
A034 Antifreeze alarm by preheat back water temperature Automatic reset to counter (filter
timer) value (3 times 3600 s)
Unit shutdown, forced switching
to 100% bypass damper opening
A035 Fans overload alarm Automatic reset Unit shutdown
A036 Supply humidity sensor not working Automatic reset Humidifier shutdown
A037 Unit configuration not allowed Automatic reset Unit shutdown
A038 Supply fan - Offline Automatic reset Unit shutdown
A039 Supply fan - Line Fault Automatic reset Unit shutdown
A040 Supply fan - Motor blocked Automatic reset Unit shutdown
A041 Supply fan - Fire alarm Automatic reset Unit shutdown
A042 Supply fan - Uin Low (FW 10) Automatic reset Unit shutdown
A043 Supply fan - Uin High (FW 10) Automatic reset Unit shutdown
A044 Supply fan - UZK low Automatic reset Unit shutdown
A045 Supply fan - UZK high Automatic reset Unit shutdown
A046 Supply fan - IGBT fault Automatic reset Unit shutdown
A047 Supply fan - Earth-GND fault Automatic reset Unit shutdown
A048 Supply fan - Peak current error Automatic reset Unit shutdown
A049 Supply fan - Hall sensor error Automatic reset Unit shutdown
A050 Supply fan - Offline Automatic reset Unit shutdown
A051 Supply fan - Phase Failure Reset by user Unit shutdown
A052 Supply fan - Motor blocked Reset by user Unit shutdown
A053 Supply fan - Mains undervoltage Reset by user Unit shutdown
A054 Supply fan - Mains overvoltage Reset by user Unit shutdown
A055 Supply fan - DC-link overvoltage Reset by user Unit shutdown
A056 Supply fan - DC-link undervoltage Reset by user Unit shutdown
A057 Supply fan - Motor overheating Reset by user Unit shutdown
A058 Supply fan - Internal circuit overheating Reset by user Unit shutdown
A059 Supply fan - Outer stage overheating Reset by user Unit shutdown
A060 Supply fan - Hall sensor error Reset by user Unit shutdown
A061 Supply fan - Communication error Reset by user Unit shutdown
A062 Supply fan - Generic error Reset by user Unit shutdown
A063 Supply fan - Outer stage high temperature Automatic reset Unit shutdown
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