– timer-controlled boost
– turning the rotary switch opens the damper and the hood provides priority signal for boost
– position feedback from damper
– membrane keypad and indicator light for boost
– adjustable basic ventilation
– measurement connection
– washable grease filter
– for supply air compensation, the control and operating voltage for the SPB damper is supplied by the range hood (standard feature)
– factory-installed balancing box in the range hood, containing a fire damper