Miele DA 220-4 Operating And Installation Instructions page 30

Installation
^ Insert the short edge of the two
spring clips into their slots from
below and pivot them 90° so that the
tab faces the center of the mounting
plate.
^ Pull the power cord through the
mounting plate.
^ Insert the four flat head screws
M 6 x 20 into the recessed holes from
above.
^ Tape the screws from above to
prevent them from being pushed
upwards when the nuts are
tightened.
30
^ Screw the mounting plate through the
ceiling and into the structural framing
using 8 x 60 screws and washers.
Once tight, make sure that the
mounting plate can safely support
the weight of the hood.