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PLAN INSTALLATION (cont.)
CONVERTING FROM RIGHT-ANGLE TO IN-LINE
EXHAUST
DUCT FLANGE
EXHAUST
DUCT FLANGE
INTAKE DUCT
Remove and reverse duct flanges and access panel
positions on housing.
For correct intake and exhaust duct size, see Table 1.
MODEL
INTAKE DUCT SIZE
L2000L
12-3/8" x 35-3/4"
L3500EXL
14-1/2" x 43-1/2"
MOUNTING OPTIONS
Provide solid support to minimize sound leves. There are two basic
mounting methods for these units.
3/8" MIN. THREADED RODS
(By Others)
Typical mounting with threaded rod through
mounting channels on top of housing.
ACCESS
PANEL
FLANGES
TABLE 1
EXHAUST DUCT SIZE
7-3/4" x 33-3/4"
9-3/4" x 41-3/8"
DIM. L2000L L3500EXL
A
7-3/4"
B
33-3/4"
MOUNTING OPTIONS
Mounting with threaded rod through adjustable
mounting brackets located at top of housing.
Mounting brackets can be bolted to housing ends in a variety of
configurations. Use screws and nuts provided in parts bag.
10-1/4"
41-3/4"
Mounting with threaded rods through adjustable
mounting brackets located at bottom of housing.
If installing unit as a ceiling ventilator, make sure that either duct
flanges or housing will be flush with finished ceiling. Duct flanges
may be removed and discarded if they interfere with a ceiling in-
stallation.
MODELS L2000L • L3500EXL
DIM. L2000L L3500EXL
C
12-5/8"
D
39-5/8"
3/8" MIN.
THREADED RODS
(By Others)
Page
12-5/8"
47-3/8"
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