Jenn-Air LI3V3A Ventilation Hood User Manual


 
5
Back View
Cabinet Dimensions
IMPORTANT:
Minimum distance “X”: 30" (76.2 cm)
Suggested maximum distance “X”: 36" (91.4 cm)
Venting Requirements
Vent system must terminate to the outdoors.
Do not terminate the vent system in an attic or other enclosed
area.
Do not use a 4" (10.2 cm) laundry-type wall cap.
Use metal vent only. Rigid metal vent is recommended.
The length of vent system and number of elbows should be
kept to a minimum to provide efficient performance.
For the most efficient and quiet operation:
Use no more than three 90° elbows.
Make sure there is a minimum of 24" (61.0 cm) of straight
vent between the elbows if more than 1 elbow is used.
Do not install 2 elbows together.
Use clamps to seal all joints in the vent system.
The vent system must have a damper. If roof or wall cap has a
damper, do not use damper supplied with the range hood.
Use caulking to seal exterior wall or roof opening around the
cap.
The size of the vent should be uniform.
Cold Weather Installations
An additional back draft damper should be installed to minimize
backward cold air flow and a thermal break should be installed to
minimize conduction of outside temperatures as part of the vent
system. The damper should be on the cold air side of the thermal
break.
The break should be as close as possible to where the vent
system enters the heated portion of the house.
Makeup Air
Local building codes may require the use of makeup air systems
when using ventilation systems greater than specified CFM of air
movement. The specified CFM varies from locale to locale.
Consult your HVAC professional for specific requirements in your
area.
Venting Methods
This canopy hood is factory set for venting through the roof or
wall.
A 3¹⁄₄" x 10" (8.3 x 25.4 cm) rectangular vent system is needed for
installation (not included). The hood exhaust opening is 3¹⁄₄"x
10" (8.3 x 25.4 cm). Vent system can terminate either through the
roof or wall. To vent out of the top of the range hood and through
a wall, a 90° elbow is needed. See “Install Range Hood” section
for details for installing the damper.
NOTE: Flexible vent is not recommended. Flexible vent creates
back pressure and air turbulence that gently reduce performance.
A. 76" (193.0 cm) minimum for
installations with canopy only.
B. 88" (223.5 cm) minimum for
installations with optional
duct cover.
1⁹⁄₃₂"
(3.2 cm)
8¹⁄₈" (20.6 cm): 30" (76.2 cm) models
11" (27.9 cm): 36" (91.4 cm) models
Wiring knockout
7⁷⁄₈"
(20.0 cm)
12³⁄₁₆" (31.0 cm): 30" (76.2 cm) models
12¹⁄₈" (30.8 cm): 36" (91.4 cm) models
¾"
(1.9 cm)
13" (33.0 cm)
18" (45.7 cm) min.
clearance upper
cabinet to countertop
36" (91.4 cm)
countertop height
30" (76.2 cm) or 36" (91.4 cm)
cabinet opening width
(If installed between cabinets)
A
B
X
Bottom of canopy
to cooking surface
Min. cabinet
opening width
Duct cover (if used)
Canopy