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JENN-AIR
®
DETAILED PLANNING DIMENSIONS
Product dimension, cutout and installation specifications are provided for planning purposes only. Before installing
any product, be sure to verify cutout dimensions and electrical/gas connections as actual product dimensions may vary.
JENN-AIR
®
DETAILED PLANNING DIMENSIONS
4 of 4
7778BdZw613
Roof jack
Transition elbow
3
1
⁄4" x 10"
(8.3 cm x 25.4 cm) duct –
54' (16.5 m) max.
DOWNDRAFT COOKTOP DUCTING ARRANGEMENTS
The diagrams below show typical duct arrangements for downdraft cooktops. JX3™ downdraft cooktops
also offer a duct-free installation option. For more details, refer to page 3.
DUCTING CONFIGURATIONS DUCTING REQUIREMENTS
3
1
⁄4" x 10"
(8.3 cm x 25.4 cm) duct
Transition elbow
6" (15.2 cm)
diameter elbow
5" (12.7 cm ) to 6" (15.2 cm)
diameter transition
6" (15.2 cm)
diameter wall cap
6" (15.2 cm) diameter duct –
51
1
⁄2' (15.7 m) max.
REAR DUCTING IN WALL TO ROOF
REAR DUCTING THROUGH WALL TO OUTSIDE
SIDE DUCTING IN TOE KICK TO OUTSIDE
THROUGH FLOOR BETWEEN JOISTS TO OUTSIDE
COOKTOP DUCT LENGTH DUCT SIZE
Gas
10' (3.0 m) or less*
5" (12.7 cm)
diameter*
Between 10' (3.0 m)
and 60' (18.3 m)
6" (15.2 cm)
diameter
3
1
⁄4" x 10"
(8.3 cm x 25.4 cm)
Electric
10' (3.0 m) or less**
5" (12.7 cm)
diameter**
Between 10' (3.0 m)
and 60' (18.3 m)
6" (15.2 cm)
diameter
3
1
⁄4" x 10"
(8.3 cm x 25.4 cm)
* Gas cooktops must use 5" (12.7 cm) diameter for runs of 10' (3.0 m) or less.
** May be used to vent straight out the back of the cooktop and directly
through the wall.
CALCULATING MAXIMUM DUCTING LENGTH
• Maximum ducting length is 60' (18.3 m).
• Each 90° elbow equals 5' (1.5 m) duct.
• Use no more than three 90° elbows.
• Flexible metal vent is not recommended.
• Do not install two elbows together.
NOTES:
• For ducting runs up to 30' (9.1 m), install cooktop as shipped.
• For ducting runs of 31' (9.4 m) to 60' (15.2 cm), remove the restricter ring
on the blower inlet housing.
• For altitudes above 4500' (1272.0 m), reduce recommended vent run by
20% for best performance.