Sinclair SDV 6 User & Installation Manual page 55

Adjust the length of the two plastic screw bars in the accessories so there
is a uniform distance between the electrical box screw bar and the wall.
Make sure that it is as flat as the wall when installing the screw bar to the
electrical box screw bar. (Fig.6)
Electrician
box
Use cross head screws to fix the wired controller bottom cover in the
electric control box through the screw bar. Make sure that the wired
controller bottom cover is on the same level after installation, and then
install the wired controller back onto the bottom cover.
Fastening the screw too tightly will lead to deformation of the back cover.
Back cover
52
Signal switching
wires
Fig.6