Advantages of the Heydal system:
- Complies with Food Safety Regulations 1995,
HVCA standard DW172 and MOD Defence
Estates Specifications
- Provides in excess of one hour fire resistance
- Lower resistance to airflow, reducing plant
and
running costs
- Provides a clean line of sight across the kitchen,
where conventional canopies may prove unsightly
- Fully demountable and easy to clean - Britannia
also
offer full cleaning & maintenance contracts
- Easily reconfigured to allow for modified cooking
equipment layouts
- Designed to reduce the load on building structure
when compared to other ventilated ceilings
- Can be powder coated to suit architectural
requirements
Principal
of Operation
The void above the ceiling is divided into
exhaust and supply air plenums by leak-tight metal vertical partitions.
Grease filtration is achieved through a twin shell perforated extract
module.
Grease emitted from the cooking equipment precipitates out of the
airstream as it passes through the modules.
The exhaust module shape ensures that the separated discharge cannot
drip back onto cooking surfaces and is retained within the shells
and the surrounding collection troughs.
Supply modules are perforated single skinned panels through which
fresh air is introduced into the kitchen.
Blank modules are not perforated; these are used to complete the
ceiling after all supply, exhaust and lighting modules have been
fitted. They also provide a means for locating items such as smoke
detectors.
Collection troughs are channels located between the modules, which
retain extracted grease between cleaning cycles.
Lighting
Lighting is provided by means of integrated
500 x 500 mm sealed light units designed to achieve
500 lux on the working surface below.
Size and weight
The system is based on 500mm square modules allowing for total flexibility
of layout. The nominal average weight of the system of 15 kg/m2.
Appearance
The ceiling is available in satin finish stainless steel as standard.
Alternatively the ceiling components can be polyester powder coated
to a colour of the clients choice.
Cleaning & maintenance
Only the exhaust modules and collection troughs require regular
cleaning. Frequency of cleaning depends on the type, frequency and
density of cooking.
All modules and troughs are easily removed, without specialist tools
and are suitable for cleaning in a conventional commercial dishwasher.
Britannia provide cleaning and maintenance contracts on any completed
ceiling to ensure the system is always in excellent condition.
Services Distribution Units
Housing the mechanical and electrical services that run from the
ceiling to the cooking equipment can sometimes be difficult.
Britannia supply services distribution units to house the services
in custom designed stainless steel enclosures.
Components of Heydal Ceiling
1. Primary support channels
2. Secondary support channels
3. Support head
4. Collection trough
5. Supply air module (single shell)
6. Blank module (single shell)
7. Extract module (twin shell)
8. Stainless steel infill to wall
9. Perimeter angle trim
10. Partitioning - separates exhaust and supply air zones

Click
here to download the Heydal brochure.
Britannia also offer a wide range
of modular canopies to suit those standard installations as well
as our traditional bespoke canopy manufacturing service. We also
provide accessories for kitchen ventilation systems, such as grease
filter panels and light fittings.
Our technical support services include free design advice, as well
as CIBSE approved CPD Technical Seminars on the subject of kitchen
ventilation design.
If you need help or advice on any aspect of our products
please call our sales team on 01926 811300
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