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Step
6
Use
minimum
26
gauge
gdvtied
or
24
gauge
d
urninurn
duct in 6“ round or
3%”
x 10”
sk,
or
combination of both.
WC
duct
shodd
be used if
instig
under a
poured concrete slab.
N~:
hd
buflding
code must be
fofiowed
in
spec~g
approved type and
schedde
of
WC
duct used.
5“ round duct maybe used on SHORT
DU~
runs. But, note higher equivalent lengths for
each 5“ dia. piece used. Don’t convert back to
5“ duct after use of 6“ round or
3%”
x
10”
duct
Aways
use an appropriate roof or
wd
cap with
damper.
bundry
type
WW
caps
shodd
NE~R
be used.
pm,~m,,
Thru
~binet
toe space
Between floor joist
Downward venting
hsti
ductwork,
mtig
mdefemde
connections in direction of
tiow
as shown.
Secure
d
joints with sheet
meti
screws and
duct tape to assure airtight seal.
F
Dud tape over
sem
and screw
.
h
Flow
Select
downward or
WW
ventig.
To convert
blower exhaust direction, remove four nuts
inside the plenum which hold blower and wire
tiger
guard. Remove blower and
rotite
so that
exhaust faces downward or rear direction
needed. Replace wire finger guard and nuts.
Retighten
nuts.
Blower exhaust direction can be adjusted
sfightiy
wtie
in its vertical or
hotionti
direction by
loosening four nuts holding blower, rotating
blower and
retightetig
nuts.
Use the shortest and straightest duct run
possible. For satisfactory performance the duct
run should
not exceed 100 feet equivalent
length. Refer to
T~N
1 of equivalent lengths.
Use
T~M
1
to calculate the
toti
equivalent
length of the ductwork.
#
Inside wdl to roof
Dired to outside
Rear
wdl venting
36