HSU-14HR03/R2 HSU-18HR03/R2 Installation14 InstallationIndoorThe mounting plate should be installed on a wall which can support the weight of the indoor unit.Piping hole pipeHow to attach the indoor unit.Hook the claws of the bottom frame to the mounting plate.If the claws are difficult to hook ,remove the front panel.How to remove the indoor unit.Push up the marked area (at the lower part of the front panel ) to release thethe claws . If it is difficult to release ,remove the front panel .Cut thermal insulation pipe to anappropriate length and wrap it withtape, making sure that no gap is left inthe insulation pipe’s cut line .Air FilterOpen the inlet grille by pulling it upward.How to Attach the air filter.Close the inlet grille.Push up the filter's center tab slightly until it is releasedfrom the stopper, and remove the filter downward.Attach the filter correctly so that the "FRONT" indication isfacing to the front.Make sure that the filter is completelyfixed behind the stopper.If the right and left filters are notattached correctly, that may cause defects.How to remove the air filter.Bottom frameMounting plate clawsService lidThe service lid is an open/close typeRemove the screws on the service lid.Slide the service lid leftward.Rotate the service lid upward23Domestic air conditioner