OPERATING INSTRUCTIONS Fan speed adjustment The fan speed of Vallox ventilation unit can be controlled with a control switch (option), with a separate cooker hood (option) or directly with a 0–10 V voltage signal. Speeds 1, 2, 3 and 4 can be selected at the control switch.
MAINTENANCE Before starting maintenance operations When you open the VALLOX 90MC unit, the safety switch of the door (T) turns power off from the unit. In spite of that, always disconnect the plug of the VALLOX 90 MC unit before starting maintenance operations.
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