valhalla360 wrote:
otrfun wrote:
valhalla360 wrote:
We have a single ducted unit but you can open the vent on the bottom of the unit to bypass the ducts and yes, it puts out a lot more cold air.
Does your unit allow you to bypass the ductwork completely? If it does, it would be helpful to know what make and model a/c unit you have.
My Brisk II doesn't allow a complete by-pass of the ductwork.
Thanks!
Yes, there is a grate on the bottom side of the unit. If closed, the air goes thru the ducts (and it's a bit quieter) but if you open the grate, it dumps the cold air directly out the grate.
Usually only need to do it mid-day when the sun is beating on the trailer on hot days. At night, we use the duct to keep the bedroom cool.
Not sure if you could get a replacement cover that allows this with your unit.
You didn't mention which make and model you have. I'm going to guess and say your grate is probably similar to the Brisk II. Even when the grate is completely open, the grate assembly itself still restricts the air exiting down and out of the grate enough to still force quite a bit of air thru the ductwork.
On units with properly constructed, designed ductwork from the RV manufacturer, a good thing. However, for those with apparently less efficient ductwork (like mine) that restricted air (even with the grate "open") may be put to much more effective use by not going through the ductwork (and grate) at all.
Which brings me back to my original point. It you're happy with your ducted system's cooling, great. If not, one may want to consider temporarily removing the shroud (as a test) to see if overall cooling improves. If it does improve, then one has the option of removing the restrictive grate assembly to allow ALL the air from the evaporator to exit directly down and out (through the shroud) into the room (bypassing the ductwork).
