Quaddrix QT-220EX, User Manual

Page: 10 / 69

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2.1 IN-CEILING MOUNT
Installation requirement:
1. The thickness of the ceiling should
be less than 42mm.
2. The ceiling should be able to bear
4x of the weight of the speed dome.
3. Upper space should be at least
20cm high.
1. Draw a circle on ceiling.
Take the paper circle (accessory) as a
template to draw a circle on the ceiling.
The paper circle’s diameter is 225 mm.
2. Cut the circle off.
Use a saw or proper tool to cut off the circle.
NOTE: Make sure the diameter of the circle is
225+2mm before cutting the circle off.