• Hood entirely made of austenitic stainless steel AISI 304 (1.4301) brushed finish grain 220.
• Constant height of 500 mm for a large retention volume.
• Bent, welded and polished angles at the bottom, ensuring great rigidity and perfect sealing.
• Hood upper fixing system designed without any element passing through the extraction plenum in order to guarantee perfect sealing and cleanability.
• Lower peripheral gutters 50 mm wide, 25 mm high with crushed folds and polished welded angles allowing the collection of condensates for easy and safe cleaning.
• Lower face of the extraction sensor welded in the corners.
• 3/4 "gas threaded evacuation purge and stainless steel plug. Crimped purge system, without roughness and without seal, guaranteeing cleanability and constant tightness over time.
• Guillotine register and connection tap.

• All stainless steel shock filters, flame arrestor, conforms to NF EN 16282-6.
• Equipped with a cover profile to fill the space between two filters or a filter and a plate.
• Installation of filters and design of the extraction plenum meeting regulatory UV exposure limits (APAVE report).

• Dismantling of filters in one place per module.
• Locking hatch with position contact.
• Lamp operating authorization safety pressure switch.
• Connectors for lamps and security systems.
• Extensions with quick connectors for connecting one module to another.
• All the integrated technical elements relating to UV systems are accessible from inside the hood.

• Made of RAL 7035 steel, IP 54, Mono power supply 230V, 50/60 Hz
• Main switch.
• Lamp ignition button.
• Reset button.
• Indicator light on lamp.
• Relay output for operating status.
• External control input.
• ARUV 2/4
  • Connection of 2 or 4 lamps (1 or 2 modules).
  • Power: 920 W - Dimensions: 400 x 600 x 150 mm.
• ARUV 6/8
  • Connection of 4 to 8 lamps (2 to 4 modules).
  • Power 1900 W - Dimensions: 600 x 760 x 210 mm.

• Length 900 mm - Power 155 W.
• Length 1200 mm - Power 250 W.
• Two lamps per module.
• Made of high purity synthetic quartz glass.
• High UV transmission between 185 and 254 nm.
• High performance, effective even at ambient temperatures up to 80 ° C.
• Long service life of up to 10,000 operating hours - reduction of 20% intensity at 185 nm thereafter - minimizes the frequency of maintenance.
• 4 to 5 times more powerful than the market standard, a single lamp replaces a cassette containing 4 to 6 low pressure UV lamps.

OPTION
Recessed watertight lighting with armored protective glass, compliant with standard NF EN 16282-2

• IP 55 - easy disassembly for tube replacement.
• High efficiency T5 tube models (class EEI = A2):
  • 1x28 W lg 1300 mm for module from 1500 mm.
  • 2x28 W lg 1300 mm for module from 1500 mm.
• LED model
  • 1x20 W lg 1300 mm for 1500 mm module.
• Supplied with a 1.50m connection cable.

• Fire resistance 90 minutes.
• IP 65.
• 230 volts, 50/60 Hz, dimmable, color 4000 K.
• Dimensions: diameter 85 mm, height 87 mm.
• Spotlights mounted and wired on each module, quick connectors for links between modules.
• Supplied with a 1.5 m connection cable.

OPERATION

• The stale air drawn in by the hood passes through high efficiency impact filters then through 2 UV lamps placed across the nozzles in the extraction sensor.
• Under the action of UV-C rays, molecules are modified according to two combined effects, photolysis and ozonolysis, with the result of reducing fat deposition and neutralizing odors.

Photolysis effect

• UV radiation in the wavelength 185 nm and 254 nm breaks down long-chain molecules (fat molecules, etc.) by direct photolysis, the various chemical bonds are broken by UV photons.

Ozonolysis effect

• UV photons react with oxygen in the air and create ozone (O3), breaking down into active oxygen. These two compounds have a lasting oxidizing effect on the molecules, eliminating fats and odors.

• Triple safety device to prevent direct exposure to UV radiation of people in the vicinity of the lamps:

1. 1. Position contact at the filters via a safety plate: when a filter is removed, the operation of the lamps is not authorized.
   2. Use of specific impact filters conforming to NF EN 16282-6 equipped with a covering profile to fill the space between 2 filters and reduce radiation.
   3. Safety pressure switch inside the sensor of each hood: if the pressure (extraction flow) is insufficient, the operation of the lamps is not authorized. The safety pressure switch authorizes the switching on of lamps above a pressure of 25 Pa (530 m³/ h / ml of hood) in the extraction sensor and a cut of the lamps below 13 Pa (330 m³/ h / ml).

• Provide a watertight network and take care of the watertightness at the fan connection.
• Respect the regulatory distance of 8 meters between the stale air discharge and any new air inlet or any opening.
• Discharge stale air into a free and naturally ventilated outdoor space / volume.
• Provide post-ventilation to avoid a possible unpleasant residual odor without danger to health.
• For better efficiency on the extraction network, the stale air must be in contact with the ozone at least 2 seconds before discharge. If the speed in the duct is 3 m / s, the minimum length must be 6 m. L mini sheath [m] = 2 x V sheath [m/s].

VIM carried out measurements of UV exposure and ozone production in its laboratory.

UV exposure

• The measurements were carried out by APAVE.
• The measured values are much lower than the regulatory limits and allow an exposure time greater than 8 hours.
• Regulatory texts :
  • Labor Code (articles R.4452-1 to R.4451-31)
  • Decree 2010-750 of July 2, 2010 on the protection of workers against the risks due to artificial optical radiation.
  • Order of 1 March 2016 relating to the methods for assessing risks resulting from exposure to artificial optical radiation.
  • Directive 2006/25 / CE of April 05, 2016 relating to the minimum health and safety requirements relating to the exposure of workers to risks due to physical agents (artificial optical radiation).

• The measurements were carried out by VIM .
• The measured values are much lower than the regulatory limits.
• Regulatory texts :
  • Chemical risk prevention measures (dangerous chemical agents): Articles R.4412-12 to R.4412-57 of the Labor Code. Circular DRT of the Ministry of Labor n ° 12 of May 24, 2006 (not published in the Official Journal).
  • Occupational exposure limit values (French): Circular of the Ministry of Labor of July 19, 1982 (not published in the OJ).