Search found 2 matches

by vaguy
Tue Jun 25, 2013 9:15 am
Forum: Help and Advice
Topic: odd size duct-board
Replies: 3
Views: 14010

Re: odd size duct-board

I'm reading recommendations on your web site under duct sizing of adjusting the travel limits on dampers to allow for a 20% leakage in large zones. Seems to me the 1" gap on a 9x12 would serve that purpose. Thoughts?

Do your ND and SID dampers all have adjustable travel limits?
by vaguy
Mon Jun 24, 2013 1:34 pm
Forum: Help and Advice
Topic: odd size duct-board
Replies: 3
Views: 14010

odd size duct-board

I need to install an ND damper into a duct-board that measures 9x12 (inside)
I see 3 options
1 - use a 8x12 and live with the gap (or plug it)
2 - use a 10x12 and notch out 1/2" of the 1" duct-board top and bottom
3 - custom order (if that is possible) a 9x12 unit.

Plugging the gap in choice 1 ...