Originally Posted by Rude520
I just purchased this unit a few weeks ago. It came with the two whisper quiet a/cs. My previous Sandpiper was the same size but a real entertainmentioned. It was equipped with 2 non ducted units. Our new one seems to really struggle keeping cool. Is there a trick to these ducted acs other this unit?
When they put these units together, they don't always (never) block off the ends of the ductwork in the ceiling. This allows the cold air to vent into the ceiling space. You could take out the last ceiling outlets and build a "dam" in the ductwork right at the last outlets front & rear.
Another trick others have done, is to insulate the air return box of the A/C unit with reflective insulation.
Both have been done by several forum members with measured success.