Search found 2 matches
- Thu Aug 12, 2010 12:14 pm
- Forum: Help and Advice
- Topic: Rattle in MA-ND4 Acuator Damper
- Replies: 7
- Views: 13383
Re: Rattle in MA-ND4 Acuator Damper
Yes, there is a bypass damper. There are 2 zones supplied by 4 dampers. One zone is the 1st floor and the 2nd is the basement. The problem occurs when only the primary upstairs zone is running. Off the top of my head I cannot verify 100% if the rattle is also occurring when the downstairs zone is ca...
- Wed Aug 11, 2010 9:55 am
- Forum: Help and Advice
- Topic: Rattle in MA-ND4 Acuator Damper
- Replies: 7
- Views: 13383
Rattle in MA-ND4 Acuator Damper
Hello, I have a MA-ND4 actuator and damper installed on my air handler. When the system calls for AC the damper functions (opens and closes) just fine. The issue I have is that when the blower on the unit increases speed for the AC airflow the damper rattles. I am getting some kind of flutter in the...