[puttster]

I have a two-zone system, the upstairs damper seems to be fully open at 1/4 way turned. Is this possible?
It is an ARD16 and the motors are set up for spring closed. The lower floor works okay. I took off the motor on the upper and with the shaft all the way clockwise (supposedly closed) it is still partially open. As I turn it CCW, after about 1/4 of the turn it becomes full open. I say fully open based on the decrease in air blowing out of the anchor hole. Then continuing, to partially open again.
There seems to be no position that is fully closed. And with 1/4 turn being fully open I can't figure out how to get the motor to do what it is supposed to be doing.
Is there something wrong with my damper... or something wrong with my analysis?

puttster

 

[beenthere]

If you don't have a bypass damper on your system. They may have set that zone up to always have air going to it, to prevent excess noise in the other zone.

 

[puttster]

Man, this forum has become a nightmare of ads. Waiting over a minute per click just to get to my own question is ridiculous! If anyone else has an idea for me, please don't waste your time posting it. We all have our lives to live, I won't be coming back here to read it.
puttster

 

[beenthere]

Many of us run Adblock.

 

[supers05]

Or use tapatalk.... For anytime else searching, this sounds like a 90*damper working like it should. The actuator must match it.

Cheers!

 

[jimn]

I use the diychatroom app. Works great . No adds