Pennsylvania Intellizone2 Dampers - Spring Close?

Discussion in 'Maintenance and Troubleshooting' started by JFLame, Feb 11, 2019.

  1. JFLame

    JFLame Member

    I have Intellizone2 zone dampers. They are two wire. Are these normally spring close or spring open? I want to add a zone damper to the return on the basement zone so I can completely isolate it, and I'm not sure which typeI need to go with.
  2. geoxne

    geoxne Active Member Forum Leader

    Spring open.

Share This Page