JSKI Canopy - JEVEN Kitchen Ventilation

www.jeven.co.uk
JSKI condensation canopy with supply air
Product Description
The Jeven JSKI condensation hood has been designed for kitchens where a comfortable, productive and
healthy indoor climate is required.
The JSKI canopy offers draught-free and drip-free
ventilation with first-class working conditions and
thermal comfort.
JSKI is equipped with exhaust and supply air with
damper plates and measurement taps. Supply air is
introduced into the kitchen by supply air columns.
JSKI has special condensation baffles.
Supply air columns ensure that the distribution of the
supply air is controlled and flexible.
Modularity makes it easy to vary both the number and
positioning of the supply air columns.
The actual supply air pattern can be manually adjusted
when working near to the canopy.
Supply air columns and condensation baffles are easy
to wash in a dishwasher.
Lights and Filters
All Jeven condensation hoods come equipped with
lights and condensation baffles.
Material
The basic material is stainless steel (AISI 304)
Accessories
- Covering boards to enclose the area between the top
of the hood and the ceiling.
- Control unit FC.
Product Code
System Jeven Condensation Hood with Supply Air
JSKI 3000x1500x540-2x250-2x315 +0.28m3/s - 0.45m3/s - Control Unit FC
Length
Width
Height
Number and size of the supply air connections
Number and size of the exhaust air connections
Supply air flow l/s
Exhaust air flow l/s
Accessories
JSKI HOODS
Phone: 0121 697 47 07
Email: jeven@jeven.co.uk
Page
1
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Functioning principle of JSKI canopies
5
1
1. Supply air is introduced through supply air columns,
2. which allows adjustment of the air pattern.
3. Heat and steam rise into the hood.
4. Condensation and grease particles are removed in the
baffles.
5. Clean air is extracted.
2
4
3
Parts
1
1. Outer casing
2. Supply air connection and damper
unit
3. Light fixture
4. Cable
5. Condensation baffles, measurement
tap for exhaust air
6. Measurement tap for the supply air
(behind the condensation baffles)
7. Exhaust air connection and damper
plate
8. Personal supply air nozzle
9. Supply air unit (detachable)
10.Ceiling console
11.Hanging bracket
11
8
5
6
3
10
7
2
4
9
Page
2
Phone: 0121 697 47 07
Email: jeven@jeven.co.uk
JSKI HOODS
www.jeven.co.uk
Dimensions of JSKI Condensation canopies
F
Width
A-A
ØD
K
B
E
A
Height
A
75
P
JSKI Wall hood
C
Width
(Module)
M
75
Length
F
Height
B-B
JSKI Island type hood
B
G
Ø 200/315/400
Width
Width
C
M
Standard dimensions
ØD
K
E
B
B
(Module)
H=330
Module length
Width
1000,1500,2000,2500,3000
1000,1100,1300
H=540
Module length
Width
1000,1500,2000,2500,3000
1000,1100,1300,1500
Length
The canopy’s length, C , P and E dimensions can be
chosen freely.
B
mm
Height F ØD G
mm mm mm mm
Emin
mm
Kmin
mm
M
mm
200
330
540
290 160 100
500 160 100
400
400
340
340
65
65
500
330
540
290 200 125
500 250 150
700
800
500
550
110
110
These dimensions are for standard units.
Custom solutions are available from the Jeven
Design Service Department and will be designed to
suit individual requirements.
The Design Service Department can be contacted
on 0121 697 47 07 and design@jeven.co.uk
JSKI HOODS
Phone: 0121 697 47 07
Email: jeven@jeven.co.uk
Page
3
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Recommended supply air flow rates for JSKI hoods
The recommended airflow depends on the
size of the hood and the supply air units:
The canopies are supplied from the
factory with suitable air flow rates
for a pressure level of 25-35 Pa.
Hood height
Width(B) of the supply air unit
mm
200 mm
500mm
330
0.02-0.045 m3/s (70-160 m3/h)
0.05-0.09 m3/s (180-325m3/h)
540
0.05-0.075 m3/s (180-270 m3/h) 0.12-0.16 m3/s (430-575m3/h)
Pressure loss, Sound data and Throw length / Supply air unit, JSKI hoods
Spigot Ø 160 mm Unit width 200 mm
Hood height 330 mm
Spigot Ø 200 mm
Unit width 500 mm
Hood height 330 mm
open
Damper half closed
60
50
40
Damper half closed
30
LpA=35 dB(A)
25
20
LpA=30 dB(A)
16
14
12
10
8
7
3
0.025 0.03 0.04 0.05 0.06 0.08 0.1 0.12 0.16 [m /s]
3
100
200
300
500 [m /h]
Hz
Kok
125
-3
0,8
250
0
500
2
Spigot Ø 160 mm
Hood height 540 mm
2000
-6
0,5 0,8
4000
- 16
Hz
Kok
125
-2
Pt [Pa]
LpA=45 dB(A)
0,5 0,8
500
2
1000
1
4000
- 16
500
4
Spigot Ø 250 mm
Hood height 540 mm
1,4
1000
-5
2000
- 19
4000
- 26
Unit width 500 mm
LpA=45 dB(A)
60
50
40
open
LpA=40 dB(A)
30
LpA=35 dB(A)
25
20
LpA=30 dB(A)
16
14
12
10
8
7
3
0.03 0.04 0.05 0.06 0.08 0.1 0.12 0.16 0.2 [m /s]
100
200
L0,2 [m]
1,4
2000
-7
250
7
3
500 [m /h]
L0,2 [m]
300
Damper half closed
30
LpA=40 dB(A)
25
20
LpA=35 dB(A)
16
14
12
LpA=30 dB(A)
10
8
7
3
0.025 0.03 0.04 0.05 0.06 0.08 0.1 0.12 0.16 [m /s]
3
100
200
300
500 [m /h]
250
1
200
open
Damper half closed
125
-2
100
Unit width 200 mm
60
50
40
Hz
Kok
30
LpA=40 dB(A)
25
20
LpA=35 dB(A)
16
14
LpA=30 dB(A)
12
10
8
7
3
0.025 0.03 0.04 0.05 0.06 0.08 0.1 0.12 0.16 [m /s]
L0,2 [m]
1,4
1000
1
LpA=45 dB(A)
Pt [Pa]
LpA=40 dB(A)
Pt [Pa]
Pt [Pa]
LpA=45 dB(A)
0,5
open
60
50
40
Hz
Kok
125
6
250
8
300
500
0,5 0,8
1,4
500
4
1000 2000
-5
- 10
3
700 [m /h]
L0,2 [m]
4000
- 18
The sound power level (Lw) in each octave band is computed by adding the corresponding factor Kok
to the sound pressure level (LpA), as in Lw = LpA + Kok
Page
4
Phone: 0121 697 47 07
Email: jeven@jeven.co.uk
JSKI HOODS
www.jeven.co.uk
Recommended exhaust air flow rates for JSKI canopies
Recommended exhaust flow / spigot
The recommended exhaust flow rate is max.
0.25 m3/s per 315 mm spigot,
duct velocity 3.2 m/s.
The hoods are equipped with a suitable type
of condensation baffles
(pressure level 30-50 Pa).
Spigot size Ø
mm
200
250
315
400
500
The recommended exhaust flow is
0.1 to 0.2 m3/s per hood meter.
Pressure loss and Sound data
Pressure loss and Sound data
Hood length (m)
1
Condensation baffle type 2/1
2.0 2.5 3.0
Ps (Pa)
120
100
1.5
80
70
60
50
dB(A) =50
dB(A) =40
40
30
0.08 0.1 0.12 0.16 0.2 0.24 0.32 0.4 0.5 0.6
300
500
700
1000
0.8 m3/s
1400 1800 2400 m3/h
Pressure loss
Pressure loss
Ps (Pa)
Condensation baffle type 1/1
Exhaust flow
m3/s
m3/h
- 0.90
- 320
0.900 - 0.175
320 - 630
0.175 - 0.250
630 - 900
0.250 - 0.420
900 - 1510
0.420 - 0.700 1510 - 2520
Hood length (m)
1
120
100
1.5
2.0
2.5
80
70
60
50
dB(A) =50
3
dB(A) =40
40
30
0.08 0.1 0.12 0.16 0.2 0.24 0.32 0.4 0.5 0.6
300
500
700
1000
0.8 m3/s
1400 1800 2400 m3/h
Sound Power level, Lw
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
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
Factor, Kok
Hz
Kok
tol.
125
6
±3
250 500
5
4
±3 ±2
1000
-2
±2
2000
-8
±3
4000
-15
±4
Hz
Kok
tol.
Sound Attenuation
125
25
24
250 500
5
4
±3
±2
1000
-2
±2
2000
-8
±3
4000
-15
±4
L(dB) for JSKI condensation hoods
Supply air unit, hood JSKI
Damper open
Sound attenuation, (dB)
Supply air unit, hood JSKI
Damper open
Sound attenuation, (dB)
Hood heigth/spigot size
330mm/ ø160mm
540mm/ø160mm
125
6
±3
250
10
8
500 1000
6
12
5
12
2000 4000
15
25
17
24
Hood heigth/spigot size
330mm/ ø200mm
540mm/ø250mm
125
17
16
250
10
9
500 1000
10
11
7
11
2000 4000
18
24
16
23
The average sound attenuation includes the end reflection of the connection spigot.
It is recommended to use ´damper open´ values, when calculating sound attenuation.
JSKI HOODS
Phone: 0121 697 47 07
Email: jeven@jeven.co.uk
Page
5
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Objectives of Kitchen Ventilation
Exhaust Flow Rates
1. Cooking vapours and heat should be removed with the help
of efficient local exhaust in such a way that contaminants do
not pass though the staff’s breathing zone.
2. Temperature, velocity and cooling effect of the supply air
should be comfortable.
3. In cases where staff are subjected to high heat radiation,
they should be able to adjust the supply air (local cooling)
4. Grease extractors should be fire-proof and, as with supply
air units, should be easy to maintain.
5. Air flow rates should be easily adjustable.
Exhaust air flows are calculated according to the DW/172
standard, based on the type, size and power source of the
kitchen equipment located under the canopy.
Table 1
Coefficient
Size
Power source
Exhaust
mm x mm
gas/electric
m3/s
Dimensioning
Kitchen equipm.
1. The size of the hood is determined by the size of the kitchen
equipment. The overhang depends on the type of equipment
and the distance between the hood’s gutter and the top of the
kitchen equipment. According to the DW/172 standard, the
overhang for the equipment under this type of hood is 300mm.
C
.....
.....
.....
.....
.....
.....
.....
2. Airflow rates are calculated based on the type and size of
each piece of kitchen equipment.
3. The distribution of the supply air is planned, and the product
codes are marked with airflows.
Total.
m3/s
The Jeven free design service team can help you with
these calculations.
Supply Air and General Exhaust
Supply air flow rates are usually 80-90 % of the exhaust air
flow rates. General exhaust is usually 10% of the hood’s
exhaust air flow rates.
Simply email a drawing of the kitchen and the list of cooking
equipment to design@jeven.co.uk and we will calculate all
the necessary airflows and also prepare a drawing of the
canopies for you for free.
Example
1. Dishwasher
width
1.2m
length
1.8m
coeff
0.3
Exhaust Air Flow 36 kW x 0.20 m3/s/kW x 0,9 = 0.648 m3/s
General Exhaust
Total Exhaust
Supply Air Flow
Page
6
Phone: 0121 697 47 07
Email: jeven@jeven.co.uk
JSKI HOODS
= 0.10 x 0.648 m3/s = 0.65 m3/s
= 0.65 m3/s + 0.648 m3/s = 0.713 m3/s
= 0.9 x 0.713 m3/s = 0.642 m3/s
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Benefits of JSKI hoods
- Condensation baffles with drop free function
- Easy measuring of air flows
- Custom built canopies
- Free Jeven canopy calculation and design service
- Hood efficiency 94-97 %
- Flexible design
- Easy to clean and long working life
- Controlled and flexible distribution of the supply air
System Jeven Design Service
The Jeven design service helps you choose the best solution for your professional kitchen project.
Simply email us a drawing of the kitchen lay-out and a list of the cooking equipment to design@jeven.co.uk
We will do all the calculations and prepare all the necessary drawings of the canopies.
This service is always free of charge to you.
- Air flow calculations
- Custom built hoods
- Noise levels
- Individual project design
- Data and drawings by e-mail
- Cad files .dwg and .dxf
- Always individual product drawings with order
confirmation
Example : JSKI- R - 5200 x 1500 x 540 - 4x250 - 2x315 + 0.460 m3/s - 0.500 m3/s
(2600)
1300
500
25
0
50
540
5
31
5
Module 2
750
Module 1
31
1500
75
1300
700
1200
(1400)
1200
1500
700
110
5200
Positioning
thecanopy
Hood
Positioning
of of
the
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.
Typically the overhang is 300 mm.
!
JSKI HOODS
_ 250
>
Dishwasher
_ 250
>
2000-2100
If the equipment has any doors that open upwards, make
sure there is enough distance to the canopy.
X
The normal distance between the hood side and the floor is
2000 - 2100 mm.
Phone: 0121 697 47 07
Email: jeven@jeven.co.uk
Page
7
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Distribution of supply air
1 Unidirectional throw pattern.
2 Displacement throw pattern
3 Bidirectional throw pattern
3
1
2
System 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 individual adjustment of air
patterns and airflows, which means better indoor
climate for the kitchen staff.
Light fixture
2
B
1
1) Light fixture, as standard, IP 65
T8
B= 131 mm , ( 1x18W , 1x36W , 1x58W )
B= 168 mm , ( 2x18W , 2x36W , 2x58W )
T5
B= 80 mm , ( 1x14W , 1x28W , 1x49W )
B= 160 mm , ( 2x14W , 2x28W , 2x49W )
2) ca. 2 m cable, type EKK 3 x 1,5
By default, every hood module comes with a light fixture. The light fixture has a cable, which
should be connected to a junction box with a cable lock. The junction box is not included.
Page
8
Phone: 0121 697 47 07
Email: jeven@jeven.co.uk
We reserve the right to make changes
to products without prior notice