Electrolux 600cfm Instructions D'utilisation page 14

14
Installation
Calculating Duct Length Table
For maximum efficiency, use the shortest and straightest duct possible. The system will operate most
efficiently when the ductwork does not exceed 60 feet of equivalent duct. The downdraft will operate
properly with ductwork up to 100 equivalent feet of duct.
Calculations are approximate and based on HVAC industry standards.
DUCT PIECES
** For Straight Round / Rectangular Duct, measure actual linear feet
used and then multiply by Equivalent Length shown.
6" (15.2cm) Round
Straight **
6" (15.2cm) Round Metal Flex
No Bends **
6" (15.2cm)
90° Elbow
6" (15.2cm)
45° Elbow
3¼" x 10" (8.2cm x 25.4cm)
Straight **
3¼" x 10" (8.2cm x 25.4cm)
90° Elbow
3¼" x 10" (8.2cm x 25.4cm)
45° Elbow
3¼" x 10" (8.2cm x 25.4cm)
90° Flat Elbow
3¼" x 10" (8.2cm x 25.4cm) to 6"
(15.2cm) Round Transition 90°
Elbow
6" (15.2cm) Round to 3¼" x 10"
(8.2cm x 25.4cm) Transition
90° Elbow
3¼" x 10" (8.2cm x 25.4cm) to 6"
(15.2cm) Round Transition
6" (15.2cm) Round to 3¼" x 10"
(8.2cm x 25.4cm) Transition
6" (15.2cm) Round Wall Cap with
Damper
3¼" x 10" (8.2cm x 25.4cm) Wall
Cap with Damper
6" (15.2cm) Round Roof Cap
EQUIVALENT NUMBER
LENGTH X USED =
1 Ft. (0.3m)
1.5 Ft. (0.45m)
10 Ft. (3m)
5 Ft. (1.5m)
1 Ft. (0.3m)
10 Ft. (3m)
5 Ft. (1.5m)
10 Ft. (3m)
30 Ft. (9m)
30 Ft. (9m)
5 Ft. (1.5m)
5 Ft. (1.5m)
30 Ft. (9m)
30 Ft. (9m)
30 Ft. (9m)
TOTAL DUCTWORK
EQUIVALENT
LENGTH
Ft. or m
Ft. or m
Ft. or m
Ft. or m
Ft. or m
Ft. or m
Ft. or m
Ft. or m
Ft. or m
Ft. or m
Ft. or m
Ft. or m
Ft. or m
Ft. or m
Ft. or m
Ft. or m