Cyclone Hoods

Jeven Cyclone Hoods are equipped with cyclone filters suitable for kitchens with lower purification requirements. A cyclone filter separates grease by sucking air into a circular chamber where it produces a vortex. Grease and other contaminants are thrown out to the periphery and the purified air flows up to the exhaust flue. Maintenance is very simple as the filter cells can be easily removed from their housing and cleaned in a dishwasher.

CONSTRUCTION

JCE-huuvat tuoterakenne

Grease filter and measuring outlet for exhaust air flow.
Control air device with measuring outlet for supply air flow.
LED lighting
Exhaust air connection with balancing damper.
Supply air with removable diffuser.
Supply air connection with balancing damper.

JCE-huuvat tuoterakenne

Lighting

As standard, the hood is supplied with a recessed LED lighting that is prepared for DALI control.

The lighting fixture is supplied with a cable for connection to a junction box.

IP 65 recessed LED lighting
4000 K, RA 90
Supplied with a 3 metre, 5-wire cable

FUNCTION

JSI-R

Toimintaperiaate JSI-R

Contaminated air rises up to the roof of the hood.
It is then sucked in through a cyclone filter.
The purified air is sucked into the flue.
Draught-free fresh air is supplied to the room via demountable air supply units.
Control air jets direct the odours towards the grease filters and prevent contaminated air from escaping from the hood.

JLI-R

Toimintaperiaate JLI-R

TECHNICAL DATA – EXHAUST AIR

The size of the filter housing is adjusted to the exhaust air flow so that the total pressure drop across the filter housing is between 40 and 60 Pa.

Recommended exhaust air flow per connection

Storlek anslutning ø	Frånluftsflöde
mm	l/s	m³/h
200	40-140	145-500
315	140-340	500-1225
400	340-530	1225-1910

JCE cyclone filter – Separation rate

Standard VDI 5052 Part 1

Pressure drop and noise data

Noise pressure level, Lw

Noise pressure level Lw in each octave band is obtained by adding the factor Kok to the noise pressure 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

Noise insulation – exhaust air

Reported noise reduction includes end reflection for the connection socket.
It is recommended to use data from “open damper” when calculating noise reduction.

JCE-2, connection ø 200 mm.

Hz	125	250	500	1000	2000	4000
Stängt spjäll	12	7	7	10	10	10
Öppet spjäll	11	6	6	6	6	5

JCE-4, connection ø 315 mm.

Hz	125	250	500	1000	2000	4000
Öppet spjäll	3	5	4	11	10	10
Stängt spjäll	2	4	3	6	4	7

Balancing and measurement of flow

K-factor exhaust air

Antal filterceller	1 styck	2 styck	3 styck	4 styck	5 styck	6 styck	7 styck	8 styck
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

TECHNICAL DATA – SUPPLY AIR

The damper is factory-adjusted for actual flow with a pressure drop of 25-35 Pa.

Kåpans höjd	Tilluftsdonets bredd, B
mm	200 mm	500 mm
330	-	50-90 l/s
540	40-70 l/s	100-150 l/s

Pressure drop, noise data and throw length for supply air diffusers

Connection ø200 mm
Diffuser width: 500 mm. Hood height: 330 mm.

Hz	125	250	500	1000	2000	4000
Kok	-2	7	4	-5	-19	-26
tol.	±6	±4	±2	±2	±3	±5

Connection ø250 mm
Diffuser width: 500 mm. Hood height: 540 mm.

Hz	125	250	500	1000	2000	4000
Kok	6	8	4	-5	-10	-18
tol.	±3	±3	±2	±2	±3	±4

Connection ø160 mm
Diffuser width: 200 mm. Hood height: 330 mm.

Hz	125	250	500	1000	2000	4000
Kok	-3	0	2	1	-6	-16
tol.	±3	±3	±2	±2	±3	±4

Connection ø200 mm
Diffuser width: 200 mm. Hood height: 540 mm.

Hz	125	250	500	1000	2000	4000
Kok	-2	1	2	1	-7	-16
tol.	±3	±3	±2	±2	±3	±4

The noise power level (Lw) divided into octave bands is obtained by adding the correction factor
Kok with actual noise level (LpA) Lw = LpA + Kok

Supply air valve, open damper.

Ljuddämpning, dB
Kåpans höjd	Anslutning	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

Diffusion image from the supply air diffuser

The diffusion and flow of the supply air is readily adjustable, which makes possible a draught-free supply of fresh air.
Since supply air diffusers can be placed on all sides of the hood, air can be supplied to anywhere in the kitchen.
The number of supply air units is determined by the total flow to be supplied to the hood.
The supply air diffusers are easy to disassemble for cleaning in a dishwasher.

Adjustment of horizontal diffusion image
Lateral air-flow can be regulated by adjusting the position of the diffuser’s vertical control plates.
horizontal alignment of the supply air

Adjustment of vertical diffusion image
Vertical air-flow can be regulated by adjusting the position of the diffuser’s horizontal control plates.

Vertical alignment of the supply air

Adjustment of comfort nozzle
In each supply air diffuser, there is a comfort nozzle that can be adjusted to give the kitchen staff extra supply air.

Air blow directions alignment nearby supply air column

Measurement and balancing

K-factor

Bredd mm	200	200	500	500
Höjd 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

REFERENCES

Here are a number of examples of kitchens with Cyclone Hoods:

DOCUMENTATION

Product brochure

Balancing, operation and maintenance instructions

ACCESSORIES

Ansulex fire extinguishing systems
Ansulex fire extinguishing systems have been specially developed for restaurant kitchens. The extinguisher liquid reacts with the hot grease, cools it down and effectively prevents re-ignition.

PRODUCT CODING

JSI – R – Cyclon – 3000x1500x540 – 6×250 – 3×315 + 750 l/s – 850 l/s

Cyclone Hoods are equipped with cyclone filters and recessed LED lighting as standard.
The base material of the hood is stainless steel plate, AISI 304

BALANCING AND FLOW MEASUREMENT

Exhaust air

K-factor exhaust air

Antal filterceller	1 styck	2 styck	3 styck	4 styck	5 styck	6 styck	7 styck	8 styck
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

Supply air

K-factor

Bredd mm	200	200	500	500
Höjd 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

Cyclone Hoods