Air flow in ducted roof AC systems
Recently purchased 2000 Pace Arrow 33" motor home. Front unit has decent, not great, flow at vents to rear of unit. Flow to vent in front of unit is almost non existent. Rear unit has great flow fr...
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Also there is a divider that separates the supply air from the return air in the bottom of the A/C unit. take down the ceiling cover and make sure the divider is there and sealed. Also seal to the cover when you put the cover back on. With out the divider the air just goes from the supply right into the return and not much to the ducts. I fixed mine and now and I can easily keep low 70 degrees when its in the 90's outside.
