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KaDeck
Versatile air conditioning for offices and administration buildings
Installation and operating instructions
6.13 Troubleshooting A11 – A17
Faults in the motor of a slave unit are not shown on the KaController.
Only a motor fault in a master unit is shown on the KaController.
A11 control sensor faulty
The room temperature is regulated on the selected control sensor, that is to
say that the external room sensor/intake sensor can be faulty, depending on
the DIP switch setting. If the rooms sensor in the KaController is faulty, this
display alternates with tAL1.
Effect of this alarm:
The fan is switched off and the cooling valve closes.
A12 motor protection control sensor
Any motor fault with a KaControl is shown on the KaController by the
display “A12”.
When a motor fault has occurred, check whether the fan is blocked.
To eliminate the fault, disconnect the unit and remedy the cause of the
fault. The unit should then restart after the power supply has been
reconnected and a fan stage has been selected.
Effect of this alarm:
The fan is switched off and the cooling valve closes.
A13 Room frost protection function
The room temperature is monitored at each phase in the system to a limit of
8 °C. The room frost protection function is enabled if the room temperature
drops below 8 °C. The room frost protection function is disabled when the
room temperature rises above the limit of 8 °C.
Effect of this alarm:
The cooling or heating valve opens and fan stage 1 is switched on.
The limit of 8 °C is fixed for the room frost protection function
and cannot be changed.
Содержание KaDeck
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