Residential jobsite using open web floor trusses between the upstairs floor and the downstairs ceiling. the EC arrived and found no HVAC ducting installed were told by HO/GC to go ahead and wire the home. after wiring the residence and installing 30 + recessed cans and recessed flourescent fixtures and pulling all home runs and LVcontrolls and central vac lines in the truss space hvac shows up and install all of the heat supply runs in ductwork in same area. the return plenum is intended to be all of the open area in this same cavity. no panning of any kind.return air grates are cut in up stairs and the boots just stub down into the floor/ceiling cavity. down stairs some cold air returns are cut into the ceiling( will be 5/8 sheet rock when finished) some are panned off between the wall studs but feed into the open ceiling cavity.all wiring done prior to their start of the return ductwork. AHJ has been called, awaiting his decision. question is has anyone else seen this, if so what was the AHJ decision. none of thewire or fixtures are rated for plenum or Air tite . what are your thoughts on this style of return air plenum?
[This message has been edited by sparkystudent (edited 06-29-2004).]
