Mann+Hummel Provent 200

The bracket shown above has the hole floating off the fan shroud. The front part of the bracket is oriented so that the Provent 200 can fit vertically where it should.

When the part of the bracket that the Provent 200 mounts to is upside down the bracket appears to work properly.
Has anyone ever installed this before? Since there are no instructions it appears to me that the bracket was formed upside down which mirrors the holes in relation to the finished part. Are they all like this or do I have a dud? I tried to contact Lingenfelter but they are currently closed so, the forums seemed like the place to try.
Thank You,
Philip



