Viessmann AirflowPLUS Installation And Operating Instructions Manual page 20

Installation
Panels
(continued)
20
Viessmann AirflowPLUS AH2A Installation, Operating and Service
To change the duct connection side of the air handler
for vertical installation, the right and left side panel can
be interchanged. To interchange the panels refer to the
following instructions.
1. Remove the retaining screws and set aside.
2. Remove the side panel by pulling up on the handle
and then out.
3. Remove the retaining screws from the panel on
the opposite side and set aside.
4. Remove the side panel by pulling up on the handle
and then out.