The Jeven JSI hood has been designed for kitchens where a comfortable, productive and healthy indoor climate is required.
JSI offers draught-free ventilation with first-class working conditions and thermal comfort.
The JSI hood is equipped with exhaust, supply and direction air, with damper plates and measurement taps.
By default, every hood module comes with an energy efficient LED light fixture integrated to the hood’s roof.
The light fixture has a cable which should be connected to a junction box with a cable lock. The connection cable must be positioned in such way that it is not exposed to mechanical or thermal stress.
IP 66 integrated LED lamp
4000 K, CRI>84
incl. 2 m HF-connection cable (Halogen Free, type 3×1,5 mm²)
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.
| JCE-greasefilters recommended exhaust flow / spigot | ||||||||
|---|---|---|---|---|---|---|---|---|
| Spigot size | ø200 | ø200 | ø315 | ø315 | ø315 | ø400 | ø400 | ø400 |
| Air flow l/s | 40-70 | 70-140 | 140-210 | 210-270 | 270-340 | 340-400 | 400-465 | 465-530 |
| Air flow m³/h | 144-250 | 250-500 | 500-755 | 755-970 | 970-1220 | 1220-1440 | 1440-1670 | 1670-1900 |
| Number of JCE | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| K1 (l/s) | 9,62 | 20,1 | 28,8 | 39,2 | 48,9 | 57,6 | 68 | 78,4 |
| K2 (m³/h) | 34,6 | 72,4 | 104 | 141 | 176 | 207 | 245 | 282 |
| Q=Kx√Pm Pm=(Q/K)²Pa | ||||||||
Supply air hood is equipped with direction air that effectively prevent impurities from escaping from the hood. The 94-97 % capture rate is measured by the NORDTEST method NT / VVS 088.
Measurement results:
Capture rate as a function of exhaust air flow. Inlet + control air flow 250-280 l/s
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.
| Hz | 125 | 250 | 500 | 1000 | 2000 | 4000 |
|---|---|---|---|---|---|---|
| Kok | 6 | 5 | 4 | -2 | -9 | -16 |
| tol. | ±3 | ±3 | ±2 | ±2 | ±3 | ±4 |
The average sound attenuation includes the end reflection of the connection spigot.
It is recommended to use “damper open” values when calculating 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 |
|---|---|---|---|---|---|---|
| "Dumper closed" | 3 | 5 | 4 | 11 | 10 | 10 |
| "Damper open" | 2 | 4 | 3 | 6 | 4 | 7 |
The canopies are supplied from the factory with suitable air flow rates for a pressure level of 25-35 Pa.
| Supply air unit | ø160 | ø200 | ø250 |
|---|---|---|---|
| Width, mm | 200 | 500 | 500 |
| Height, mm | 500 | 290 | 500 |
| Air flow | 40-70 l/s | 60-90 l/s | 100-150 l/s |
| K1 (m³/h) | 77,0 | 96,0 | 192 |
| K2 (l/s) | 21,4 | 26,7 | 53,3 |
| Q=Kx√Pm Pm=(Q/K)²Pa | |||
Spigot ø200 mm.
Unit width 500 mm. Hood height 330 mm. Measurement after 90° curve.
| Hz | 125 | 250 | 500 | 1000 | 2000 | 4000 |
|---|---|---|---|---|---|---|
| Kok | -2 | 7 | 4 | -5 | -19 | -26 |
| tol. | ±6 | ±4 | ±2 | ±2 | ±3 | ±5 |
Spigot ø160 mm.
Unit width 200 mm. Hood height 540 mm. Measurement after 90° curve.
| Hz | 125 | 250 | 500 | 1000 | 2000 | 4000 |
|---|---|---|---|---|---|---|
| Kok | -2 | 1 | 2 | 1 | -7 | -16 |
| tol. | ±3 | ±3 | ±2 | ±2 | ±3 | ±4 |
Spigot ø250 mm.
Unit width 500 mm. Hood height 540 mm. Measurement after 90° curve.
| Hz | 125 | 250 | 500 | 1000 | 2000 | 4000 |
|---|---|---|---|---|---|---|
| Kok | 6 | 8 | 4 | -5 | -10 | -18 |
| tol. | ±3 | ±3 | ±2 | ±2 | ±3 | ±4 |
The sound power level (Lw) in each octave band is computed by adding the corresponding factor Kok to the sound pressure level (LpA), Lw= LpA+Kok
Jeven supply air columns deliver a controlled and flexible distribution of the supply air. It is possible to wash the supply air columns in a dishwasher and the inside of the supply air chambers is easy to clean. These columns allow an individual adjustment of air patterns and air flows, which means a better indoor climate for the kitchen staff.
Horizontal alignment of the supply air
The supply air blow direction can be aligned left or right by moving the air control plates inside the supply air units. The control plates are marked in red in the pictures.
Vertical alignment of the supply air
The supply air blow direction can be aligned up or down by turning the horizontal air control plates inside the supply air units. The control plates are marked in red in the pictures.
Air blow directions alignment nearby supply air column
Supply air blowing direction can be aligned by turning the rotatable blowing nozzles at the bottom of the supply air column. The rotatable nozzles are marked in red in the pictures.
Sound attenuation, dB
| Hood height | Spigot | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz |
|---|---|---|---|---|---|---|---|
| 330 mm | ø200 | 17 | 10 | 10 | 11 | 18 | 24 |
| 540 mm | ø160 | 24 | 8 | 5 | 12 | 17 | 24 |
| 540 mm | ø250 | 16 | 9 | 7 | 11 | 16 | 23 |
K-factor supply air
| Width, mm | 200 | 200 | 500 | 500 |
|---|---|---|---|---|
| Height, mm | 290 | 500 | 290 | 500 |
| K1 (m³/h) | 45,0 | 77,0 | 96,0 | 192 |
| K2 (l/s) | 12,5 | 21,4 | 26,7 | 53,3 |
| Q=Kx√Pm Pm=(Q/K)²Pa | ||||
Product Brochure
Covering boards
Covering boards to enclose the area between the top of the hood and the ceiling.
JSI – JCE – 3000x1500x540 – 6×250 – 3×315 + 750 l/s – 850 l/s – CB – FP
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