7
Ceiling
5-1/2”
2-1/2” min.
Min. 8” Min. 12”
Minimum length
of opening
L1 - 1500 = 40”
L2 - 1700 = 50”
L3 - 1800 = 64”
Combustible wall
construction
Top of stand-os
See installation manual packed
with appliance for minimum
combustible cavity dimensions
Non-combustible
cement board
Min. 1” clearance
around pipes
2 x 4 on edge to support
plenum. Maintain 1”
clearance to pipes.
LDK 1 & LDK 4 ONLY -
see clearances on page 6
Space between mounting brackets
may be left open to allow cavity
to ventilate.
Discharge cavity requires a base the
entire length of the plenum outlet
as a minimum otherwise beyond
that it may be left open to allow
cavity to ventilate and mix with
discharge air.
Note: Staining or streaking may occur
on light colored ceilings due to any
dust, etc. in air ow. Maximizing the
opening size will help reduce any
staining or streaking.
Alternate Discharge Opening Using Valance Gap At The Top Of Wall
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