Carrier 38MGQ Installation Instructions Manual

Also see for 38MGQ Series: Service manual Installation instructions

Carrier 38MGQ Installation Instructions Manual Manual pdf 26 page image

26ADJUST AIR INLETTake off the ventilation panel and flange, cut off thestaples at the side rail.VWhen installing the fi lter mesh, please plug it into flangeinclined from the air return ope ning, and then push up.Once the filter mesh, with the fixing blocks have beeninserted into the flange position holes, the installationis complete.Fig. 56 --- Air Supply OutletRETURN AIR DUCT INSTALLATION1. The default installation location of the rectangular flange isin the back and the return air cover plate in the bottom asshown in Fig. 57.Return Air Cover PlateDownward Return AirBackward Return AirRectangular FlangeFig. 57 --- Return Air Duct2. If the downward return air is desired, just change the placeof the rectangular flange and the return air cover plate.3. Connect one end of the return air duct to the return air outletof the unit by rivets and the other to the return air louver.For the sake of the convenience to freely adjust the height, acutting of canvas duct will be helpful, which can bereinforced and folded by 8# iron wire.4. More noise is likely to be produced in the downward returnair mode than the backward return air mode. We suggestinstalling a muffler and a plenum box to minimize the noise.5. The installation method can be chosen with considering theconditions of the building and maintenance etc. (see Fig. 58).1Wind supplyBack windInstall the back wind pipe (a)Wind supplyInstall the back wind pipe(b)Back wind12453645Fig. 58 --- Return Air DuctTable 21—Air DuctNUMBER NAME NUMBER NAME1Return Air Louver(with the filterscreen)4 Indoor Unit2 Canvas Duct 5 Air SupplyDuct3 Return Air Duct 6 Access Grille