5858INSTALLATION2 13M85976891512417272775Installing the ventilation unit to theceiling mounting plateCAUTIONThe ventilation unit is very heavy. Do not perform thisprocedure alone.1. Remove the front panel of the top part of the unit (1)(leave it hanging from the air flow measuring tubes).2. Place the connection box cables into the slot in the toppart of the side panel (2) and pull the connection box tothe side of the unit so that the cables remain in the slot.3. Ensure that the condensing water insulation is in placein the duct outlets of the extract air duct and of the ductthat comes to the unit from outside.4. Lift the unit in its place on the ceiling mounting plateuntil both locking wings (3) lock on the outer edge ofthe side plate of the unit.5. Visually check the tightness of the duct outlets and theunobstructed passage of measuring tubes and electriccables.6. Put the front panel of the top part back in place.Attic floor penetration plateThe attic floor penetration plate is optional. When an atticfloor penetration plate is used, the tightness of the vapourbarrier has to be ensured.MEASURING TUBESThe accessories delivered with the unit include four airflowmeasuring tubes. These can be inserted in the ducts toallow for easier ventilation adjustment.TIPYou can detach the unit from the ceilingmounting plate by pulling the spring-loadedmoulding to the direction shown by thearrow (more detailed information providedwith the ceiling mounting plate).28283838DIMENSIONING OF AND SPACE REQUIRED FOR INSTALLATION OFTHE VALLOX SILENT KLICK WATER SEAL