6
Step-by-Step Installation (continued)
Hole location options and requirements
• Mounting in ceiling with joists 16" on-center.
– Place template against inside edge of joist.
– Trace around template with pencil.
– Cut hole.
See Diagram 1, page 9 for reference.
• Mounting in ceiling with joists wider than 16" on-center.
– Place template at least 1
1
/
4
" away from existing joists
(to clear lock arms).
– Template does not need to be centered between joists.
– Trace around template with pencil.
– Cut hole.
– Install framing material inside cavity, running 90 degrees to
existing joists, leaving 14
1
/
2
" between frame sides.
See Diagram 2, page 9 for reference.
• Mounting in ceiling with joists 16" on-center where crossbeam
is closer than 1
1
/
4
" from side of enclosure.
– Enclosure MUST be against the crossbeam and 2 joists, boxing
it in on 3 sides. Shim as required.
– This will require 2 additional #8 x 3
1
/
2
" wood screws and side
gasket material (not included) to secure to crossbeam and prevent
rattling.
– Place template against crossbeam and mounting joist.
– Trace around template with pencil.
– Cut hole.
See Diagram 3, page 10 for r
efer
ence.
