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Use minimum
gauge gdvtied or
26
duct in 6" round or 3%" x 10" sk, or
combination of both.
poured concrete slab.
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
use an appropriate roof or wd cap with
damper. bundry type WW caps shodd NE~R
be used.
Downward venting
connections in direction of tiow as shown.
Secure d joints with sheet meti screws and
duct tape to assure airtight seal.
Flow
36
gauge
24
Between floor joist
downward or WW ventig. To convert
Select
blower exhaust direction, remove four nuts
inside the plenum which hold blower and wire
exhaust faces downward or rear direction
needed. Replace wire finger guard and nuts.
Blower exhaust direction can be adjusted sfightiy
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
Rear wdl venting
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