S u p p l y a i r h o o d J S I

Transcription

1 Supply air hood JSI

2 PAGE Table of Contents Product description & Product code Functioning principle, Parts Dimensions Positioning, Design Service Exhaust air Pressure loss & sound data Supply air 9 Supply air distribution, Lights We want to help you in design of ventilation by offering Jeven designer service to your disposal. Design Service helps in design and makes unique proposal solution with Jeven products. Contact us: jeven@jeven.fi 0 00

3 PRODUCT DESCRIPTION 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. Supply air is introduced into the kitchen by supply air columns. Supply air columns ensure controlled and flexible distribution of the supply air. 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 the canopy. In island models the supply air columns can be located on all sides of the hood. The columns and the filters are easy to wash in a dishwasher. LIGHT AND FILTERS All Jeven hoods come equipped with lights. Standard JSI hoods are equipped with cyclonic grease filters. MATERIAL The hood s base material is stainless steel AISI 0. The side panels can be made of stainless steel (JSI-R) or laminated glass (JSI-S). ACCESSORIES Covering boards to enclose the area between the top of the hood and the ceiling. PRODUCT CODE JSI - R x 00 x 0 - x 0 - x + 00 m/h - 00 m/h - C Material R=Stainless steel S=Glass Lenght Width Height Number and size of the supply air connections Number and size of the exhaust air connections Supply air flow, m/h Exhaust air flow, m/h Accessories C=Covering boards PAGE

4 PAGE FUNCTIONING PRINCIPLE. Supply air is introduced through the supply air columns.. The air pattern can be adjusted at the column.. Heat and impurities rise into the hood.. Direction air prevents leakage and directs heat and impurities towards grease filters.. Grease particles are removed in the filter.. Clean air is exhausted. PARTS. Outer casing. Supply air connection and damper unit. Light fixture with cable. Grease filters and measurement tap for the exhaust air. Direction air unit with measurement tap for the supply air. Exhaust air connection and damper plate. Personal supply air nozzle. Supply air unit 9. Ceiling console. Hanging bracket 9

5 DIMENSIONS Island type hood Wall hood A G A C width Module xw G xw Module xw C ød K width xw E Module xw (module) Module xw length A E K (module) length - height F F height A-A width M width M Hoods length, width and C, E-dimensions can be chosen freely. Max. module size is 000 x 00. Filters require 0 of free space to open. height F ød G Emin Kmin M PAGE

6 PAGE X 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 00. The typical distance between the hood side and the floor is If the equipment has any doors that open upwards, make sure there is enough distance to the canopy POSITIONING >0. *X >00 Oven DESIGN SERVICE Jeven Design Service helps you choose the best solution for your professional kitchen project. Simply us a drawing of the kitchen lay-out and a list of the cooking equipment to jeven@jeven.fi We will do all the calculations and prepare all the necessary drawings of the canopies. This service is always free of charge to you.

7 EXHAUST AIR The recoended exhaust airflow rate is max. 0 l/s per spigot, with a duct velocity of. m/s. y default, the canopies come with a suitable number of filter units so that the pressure level will be between 0 and 0 Pa. The nominal airflow of the filter units is 0 l/s per filter module. GREASE FILTER EXTRACTION RATE Extraction rate( % ) Particle size ( µm ) Pressure loss> 0 Pa Pressure loss> 00 Pa Recoended exhaust flow / spigot Spigot size ø Exhaust flow l/s m/h PAGE

8 PAGE PRESSURE LOSS AND SOUND DATA Pressure loss Ps (Pa) 0 0 Number of filter modules d(a) =0 d(a) = l/s m³/h 00 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 Kok tol. ± 0 ± ± ± ± ± SOUND ATTENUATION Exhaust -, spigot = ø 00. Sound attenuation, (d) Hz Damper closed Damper open Exhaust -, spigot = ø. Sound attenuation, (d) Hz Damper closed Damper open The average sound attenuation includes the end reflection of the connection spigot. It is recoended to use damper open values when calculating sound attenuation

9 PAGE 9 SUPPLY AIR The canopies are supplied from the factory with suitable air flow rates for a pressure level of - Pa. Hood height 0 0 Supply air unit width, l/s 0-0 l/s 0-0 l/s PRESSURE LOSS, SOUND DATA & THROW LENGHT / SUPPLY AIR UNIT Spigot ø00. Unit width 00. Hood height 0. Damper half closed 0 0 open d(a) = d(a) =0 d(a) = d(a) = l/s , 0, 00 m³/h Damper half closed open d(a) = d(a) =0 d(a) = d(a) = , 0, open Ps (Pa) 0 0 Damper half closed l/s L0, (m), Spigot ø0. Unit width 00. Hood height Ps (Pa) Ps (Pa) Spigot ø0. Unit width 00. Hood height 0., m³/h L0, (m) Spigot ø00 Hz Kok tol. ± ± ± ± ± ± d(a) = d(a) =0 d(a) = d(a) =0 Spigot ø0 Hz Kok tol. ± ± ± ± ± ± Spigot ø0 Hz Kok tol. ± ± ± ± ± ± l/s 00 0, 0, m /h L0, (m), 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

10 PAGE LIGHTS 0 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 DISTRIUTION OF SUPPLY AIR Light fixture as standard, IP - T: =,(xw, xw, xw) =, (xw, xw, xw) Colour temperature 0(Cool White) About m cable, type EKK x, y 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. Unidirectional thrown pattern Displacement thrown pattern idirectional throw pattern Supply air unit, Damper open Sound attenuation, d Spigot ø 00 ø 0 ø Hz Hood height