JLI

The Jeven JLI hood has been designed for light duty kitchens where exhaust-only hoods are needed or supply air units are not needed to install.

JLI hoods are equipped with filter units, damper plates and measurement taps.

JLI is equipped with special filter units, which are easy to wash in a dishwasher.

  • Functioning principle of JLI canopies
  • Product code
  • Technical information
  • Installation
  • Product selection

Functioning


  1. Heat and fumes rise into the hood
  2. Grease particles are removed in the filter
  3. Clean air is exhausted

jli func img


Parts


  1. Outer casing
  2. Light fixture with a cable
  3. Grease filters and measurement tap for exhaust air
  4. Exhaust air connection and damper plate
  5. Ceiling console
  6. Hanging bracket

JLI_tuoterakenne

Product code


jli eng product code img

All Jeven hoods come equipped with lights. Standard JLI hoods are equipped with cyclonic JCE grease filters.

The canopy’s base material is stainless steel AISI 304. The side panels can be made of stainless steel (JLI-R) or laminated glass (JLI-S).

Covering boards to enclose the area between the top of the hood and the ceiling.

Exhaust air

The recommended exhaust airflow rate is max. 340 l/s per 315 mm spigot, with a duct velocity of 4.4 m/s.
By default, the canopies come with a suitable number of filter units so that the pressure level will be between 40 and 60 Pa.
The nominal airflow of the filter units is 60 l/s per filter module.

Recommended exhaust flow/ spigot
Spigot size ø Exhaust flow
mm l/s m³/h
200 40-140 145-500
315 140-340 500-1225
400 340-530 1225-1910

Grease filter extraction rate

grease fil extract img


Pressure loss and sound data

pressure loss img

 

Sound Power level, Lw

Sound power level Lw in each octave band is computed by adding the corresponding factor, Kok to the sound power level LpA.
Lw= LpA+Kok.

Factor, Kok

Hz 125 250 500 1000 2000 4000
Kok 6 5 4 -2 -9 -16
tol. ±3 ±3 ±2 ±2 ±3 ±4

Sound attenuation

Exhaust
JCE-2, spigot= ø 200 mm.
Sound attenuation, (dB)

Hz 125 250 500 1000 2000 4000
“Damper closed” 12 7 7 10 10 10
“Damper open” 11 6 6 6 6 5

Exhaust
JCE-4, spigot= ø 315 mm.
Sound attenuation, (dB)

Hz 125 250 500 1000 2000 4000
“Damper closed” 3 5 4 11 10 10
“Damper open” 2 4 3 6 4 7

The average sound attenuation includes the end reflection of the connection spigot.
It is recommended to use “damper open” values when calculating sound attenuation

Installation

The hood shall be installed by hanging bars (f.ex. M8). These bars are not included in the delivery. Holes for the hanging bars should be drilled to the ceiling of the kitchen by using the shown fixture points.

Recommended height position of the hood is 2100-2200 mm.
Install plastic protective corner profiles on the lower end.

install img


K-COEFFICIENT EXHAUST AIR


Number of filter modules 1 pcs 2 pcs 3 pcs 4 pcs 5 pcs 6 pcs 7 pcs 8 pcs
K1(m³/h) 34,6 72,4 104 141 176 207 245 282
K2(l/s) 9,62 20,1 28,8 39,2 48,9 57,6 68,0 78,4
Q=Kx√Pm Pm=(Q/K)²Pa

Cleaning


The cleaning intervals of the filters depends on the type of cooking.
In general filters should be cleaned when they appear to be dirty.
The filter modules should be removed (one by one) by sliding them out of the filter housing although care should be taken not to spill the contents.
When handling any components of a canopy it is imperative that person wears a proper, gripping, cut-resistant work gloves for protection against metal edges.

Wall surfaces are cleaned in connection with the kitchen normal cleaning or if necessary separately. Cleaning is carried out with detergent for stainless steel surfaces.

DIMENSIONS OF JLI HOODS


Hoods length, width and A, B dimensions can be chosen freely.
Max. module size is 3000 mm x 1800 mm.
Filters require 440 mm of free space to open.

Wall hood

jli img wall placement

Island type hood

jli placement island img


Positioning of the hood


The size of the canopy is determined by the size of the kitchen equipment. The overhang depends on the type of equipment and the distance between the hood and the equipment. For this type of equipment, the overhang should be at least 300 mm.

The typical distance between the hood side and the floor is 2100-2200 mm. If the equipment has any doors that open upwards, make sure there is enough distance to the canopy.

positioning img jli

 

 

 

Calculation of air flows

Design Service