nilan Comfort 252 TOP Installation Instructions Manual

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nilan Comfort 252 TOP Installation Instructions Manual Manual pdf 16 page image

PlumpingCondensate drainImportant informationThe unit is supplied with dia. 20 mm condensate drain (PVC, GF-fittings).ATTENTIONA water trap must be established in the condensate drain in order to ensure that condensatecan drain off.ATTENTIONIf the unit is assembled outside the climate screen, it is important to secure the condensatedrain against icing with a heating cable. Frost protection of the unit is the installer'sresponsibility.During operation, a underpressure of up to 500 Pa may develop in the drain, corresponding to50 mm water column. This water trap must therefore be mounted as shown in order to preventdrying out and return flow.The connection of the water trap must be air-tight, otherwise air will be let into the unit andcondensate will remain in the unit. This could lead to water damage if the condensate overflowsthe condensate tray and from there out of the unit.After mounting the water trap, its function is tested as follows (the unit must be connected tothe duct system and the lid must be closed).The condensation tray are filled with water and the unit is operated at the highest fan speed.Allow it to run for several minutes. Check that there is no water in the condensation tray whenthe test is finished.The water trap may dry out and thus prevent water escaping from the condensate tray, as airwill be sucked into the unit. The water trap should therefore be checked at regular intervals,especially in the summer, and filled with water as necessary. Increasing the height of the watertrap compared to the minimum requirements will minimize the need tor refilling.INFONilan offers a water trap with a ball. The ball ensures that no air is sucked into the unit throughthe condensate drain if the water trap dries out. This ensures that water in the condensate traycan drain off and it makes it unnecessary to check the condensate drain so often.16