Hello - we have a Aprilaire Automation system, and one of our Model 6404 Zone Controller went bad. I ordered another, but when I received it, the replacement panel is very, very different. The old one has a almond colored case and a series of LEDs along the right side. The new one has a white case, completely different size & layout, and has a LCD display.
Will this new panel directly replace the old panel? I have replaced the IP interface with the new style with no issues, but I'm not sure about this Zone Controller panel, since it is so different.