Rangemaster RMDD3004 Instructions Manual page 3

TAKE
®
Downdraft
MEASUREMENTS (CONTINUED)
Ventilators
Page 3
SIDE VIEW
OF DOWNDRAFT
PLAN THE
3,_ -12"1-
716 1 ,, _ _218 ''
2915,,
FROM
COUNTERTOP
I !_ i TO BOTTOM
OF AIR BOX
1 " i!iili _ _!:
DUCTWORK
SIDE VIEW
OF DOWNDRAFT
295"
FROM
COUNTERTOP
TO BOTTOM
OF AIR BOX
1. The interior
downdraft blower
system is designed
for use with 3-1/4" x
10" ductwork (can be
transitioned to 6"
round). Three
different discharge
directions are
available with side-to-
side adjustment for
accurate alignment d
ductwork.
2,
For best performance:
Choose the ducting
option which allows
the shortest length of
ductwork and a
minimum number of
LEFT >
DISCHARGE
'_ I_ r" JJ RIGHT
J'" DOWN DISCHARGE
elbows and transitions. Check location of floor joists, wall
studs, electrical wiring or plumbing for possible interfer-
ence.
6" ROUND
ELBOW
EQUALS 8 FT. OF
STRAIGHT DUCT
3-1/4" X 10" TO 6" RD.
TRANSITION
EQUALS _
2 FT. OF
STRAIGHT DUCT
3-1/4" X 10"
90 ° ELBOW
EQUALS 14 FT. OF
STRAIGHT DUCT
3. The system will operate most efficiently when the ductwork
does not exceed 40 feet of equivalent duct. The chart, above,
shows equivalent feet of elbows and transitions. The number
of feet d straight duct plus the equivalent feet of transitions
and/or elbows to be used should equal 40 feet or less.
NOTE: The equivalent feet of various roof and wall caps has
been taken into consideration. Do not include them in this
calculation.
1,
2,
The exterior
downdraft blower
system is designed
for use with 3-1/4" x
14" ductwork (can be
transitioned to 8"
round). Three
different discharge
directions are
available with side-
to-side adjustment for
accurate alignment of
ductwork.
For best perfor-
mance: Choose the
ducting option which
allows the shortest
length of ductwork
and a minimum
LEFT .I" ,.
DISCHARGE _>_ _'
',
number of elbows and transitions. Check location of floor
joists, wall studs, electrical wiring or plumbing for possible
3-1/4" X 14" TO 8" RD.
TRANSITION
interference.
8" ROUND ELBOW
EQUALS 11 FT. OF
STRAIGHT DUCT
DUCT
3-1/4" X 14" 90 °
EQUALS 19 FT. OF
STRAIGHT DUCT
3. The system will operate most efficiently when the ductwork
does not exceed 40 feet of equivalent duct. The chart, above,
shows equivalent feet of elbows and transitions. The number
of feet of straight duct plus the equivalent feet of transitions
and/or elbows to be used should equal 40 feet or tess.
NOTE: The equivalent feet of various roof and wall caps has
been taken into consideration. Do not include them in this
calculation.