Compatibility: 40E / 40H+ / 50H / 60H ERV / 60H+ERV / 60H+ERV / 100H / 60H-V + / 90H-V+

The Main wall controls adjusts the air supply speed using the sliding button: OFF, MIN (low speed air exchange) and MAX (high speed air exchange). Also, the maximum humidity level for your house is selected by the knob, ensuring comfort in your home.

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