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You can choose one of the following types
screws can be undone but stay in place when you use the innovative 'stay open' internal hinge for easy wiring access
The Timer functionalities can be accessed by a unique unlock code found on a timer card within the Timer Module carton
SELV fans have an isolating transformer(which is located in an area away from the fan) and reduce the voltage to 24v so that in the unlikely event of a fan fault the electrical charge is at a safe level
Zehnder Comfowell Filter Housing CW-F 420 auto-reminder-442356-441774 You can choose one ofZehnder ComfoWell filter housing CW F 420. Rectangular compact design for use with a fine pollen filter graded ISO ePM1 >80% (F7), a fine dust filter graded ISO ePM1 >90% (F9) or an active carbon filter to neutralise odours in the supply air duct run. The filter elements are not included with the filter housing and need to be purchased separately. The filter housing can be used individually or in combination with all ComfoWell components. The airtight
