Unit Classifications

 

Each Reco-Air unit is constructed to meet the following Eurovent (EN1886:2007) Classifications:

 

• Air Leakage - Classification L2

• External Panel Deflection - Classification D1

 

Specific Requirements

 

As a minimum requirement, each Reco-Air unit shall incorporate the following grade (or equivalent) filter media:
 

• F1 - Grade G4 - Large grease particulate removal

• F2 - Grade M6 – Fine grease particulate removal 

• F3 - Grade E10 – Smoke, Steam & Moisture removal

• F4 - Food Grade Activated Carbon cylinders –
  Odour removal minimum dwell time of 0.2 seconds

 

Please note: enhanced grades of filtration are available upon request.

 

All filter & fan doors shall incorporate a locking device, which can only be accessed by Authorised Personnel.

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As a minimum requirement, each Reco-Air Unit shall incorporate the following fan assembly:

 

• Fan section (EC Plug fan/fans) 230 V or 400 V (depending on unit capacity)

• Single / Three phase, suitable for 0 to 10V signal control

• Unit Duty to suit Current DW/172 Specific Extract Flow Rate (SEFR) & Project Specific Catering design requirements

• Max. ambient working temperature to suit specific application

• Each fan shall be Inverter Controlled - fan speed ramps up as the filter pressure increases to maintain a constant air volume flow rate at the cookline / canopy

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Control & Interface Requirements

 

Reco-Air’s patented controls system protocol ensures the unit ceases to function if any of the following scenarios arise:

 

• A unit filter access door is left open or ajar

• Filters are removed or left out of the unit

• The Building Fire Alarm system is activated

• The registered pressure drop across any of the primary 3 sets of filters exceeds pre-set warning levels & reaches critical levels

• The unit Isolator is turned Off

• A system Timeclock - external controls - is not calling for system activation

• A remote Shut-off safety feature - external controls - has been activated

 

When requested, an Interface system, which facilitates remote access & permanently monitors the filter pressure drops and enables adjustment of values, activity logging and emergency re-start, may be installed. This also provides access to Real Time filter status and ensures use of filters to full life.

 

As a standard feature, Electrical Cookline Interlock terminals are incorporated, which can be utilised to disable all essential cooking equipment whenever a ‘No Air Flow’ status is present.

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This ensures no cooking operation can be effected without a proven & adequate air flow / extraction rate from the recirculation system / unit.

 

Air Commissioning / Testing

 

All Reco-Air units are fully commissioned and tested at the factory prior to being despatched.

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On completion of any Reco-Air unit installation the air volume flow rates to extract & return air ductwork must be verified by a suitably qualified Air Commissioning engineer & a report produced as point of record. All test points must be sealed with proprietary plugs on completion of this operation.

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The Reco-Air commissioned air flow rates and filter transducer / differential pressure set points shall also be recorded for future reference.

 

Reco-Air Unit Service & Maintenance

 

When planning the installation of the recirculation unit – however configured - adequate clearance must be allowed to facilitate safe Operative replacement of the filter media & fan(s).

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To comply with our Standard Terms of Warranty – and Specific Landlord / Authority approvals – a Service Contract is required.  We recommend use of our Reco-Air accredited service partners.

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Evidence of same must be made available prior to formal approval being acknowledged.

 

Reco-Air Unit Noise Breakout

 

In normal ‘Internal’ instances breakout noise from our Reco-Air unit will not exceed 60 dBA when measured at 1 metre (free field). Where Specific Authorities enforce lower noise levels, the Reco-Air unit construction can be modified accordingly.