Setra System Model SRMD - Manual (Page 7)

6.0 INSTALL FACEPLATE
There are 4 pins on the back of the faceplate. Align the pins with the rubber
grommets in the mounting plate. Slowly and evenly push the bezel until the
back of the bezel is flush against the finish wall.
Choose the appropriate Engineering unit labels for the display(s) and place
them where you want them on the faceplate.
Fig. 6
Labels