Is it one control valve per coil? Maybe a 1/3 2/3 setup would work better. If you had to turn the circut setter down that much the 1/3 valve would most likely do the day to day work with the 2/3 valve there for the extra capacity if it gets really cold.
i've come across this type of duct in the pool area of the last building i worked in. It worked great as far as not sweating in that humid enviroment. The one draw back seems to be that if the air supply shuts off for any reason the duct deflates, than makes a load noise when it suddenly...
Every VAV system I've come across seems to have the same flaw. Because of the minimum damper postion in the VAV box certain areas will always be overcooled. Office buildings move people around all the time, so areas that were designed for ten people may have only two which just compounds the...
