Planning - Chamberlain 3500D Owner's Manual

Security+ garage door opener
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Horizontal and vertical reinforcement
is needed for lightweight garage doors
(fiberglass, steel, aluminum, door with
glass panels, etc.). See page 20 for details.
Safety
Reversing Sensor
14m32935.20268 589.075.20 69717.39.075b 296.88879 5879 5488.011c501 682 T39.21v 0.757768.3 79.961 i341.7572d7.5 79.9 5581 l831SS5.20 69717.39.2960 6971779653.20279 m7c .3 m 7
Header Wall
Extension Spring
OR Torsion Spring
OR upp5TD 5355 m 382 562 m 6 56S 05m 162 6 56S 05m 77176S 03132l55 2085.53.8 582.907 l 1.917 63677176S 3bra28343
Safety
Reversing
Sensor
FINISHED CEILING
Support bracket &
fastening hardware
is required. See page 13.

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