At AHS Specialist Services we create healthier, more productive kitchen environments that deliver energy savings, reduce costs and provide a sustainable solution. Our experienced installation and support team are specialists in a wide range of ventilation, extractor fan and canopy installation and maintenance, make-up air units and odour control systems.
AHS Specialist Services supply and install complete kitchen ventilation systems. In addition, we are able to solve kitchen ventilation problems. These can be insufficient supply or extract airflow, odour problems, and noise problems. All works are done in accordance with specification DW/172.
New kitchen canopies are designed to accommodate the cooking equipment and the kitchen layout, and can incorporate lighting and fire suppression equipment. The canopy can be located adjacent to a wall, or island type, and must have sufficient overhang and height to ensure cooking fumes are contained. The canopies are manufactured from grade 304 stainless steel, with all welds ground and polished.
Effective kitchen ventilation systems require balanced supply and extract airflow, with make-up air being an important component of the system. Failure to get this right will cause problems, such as cooking odours, fumes or draughts entering into the restaurant. Other factors include filtration of the extract effluent.
Baffle filters in the canopy are easy to clean and offer good protection against the spread of fire. Further filtration may be necessary if the exhaust outlet odours are likely to affect nearby properties. These can include electrostatic, ultra-violet and carbon filters. AHS Specialist Services can advise on this.
The make-up air should be provided by an air handling unit and will need to heat the supply air in winter. The correct airflow distribution is essential in the kitchen to avoid canopy overspill or cooling of the cooked food. The extract fan must be correctly selected to meet the airflow and pressure requirements, and also be suitable for high temperature polluted air.
This type of fan is often unavoidably noisy, and may require an acoustic enclosure and cleanable silencers to avoid environmental problems. There are regulations for fire prevention and gas cooking interlock which must be complied with at design stage.
A control system designed for kitchen ventilation systems in accordance with BS 6173/2001 is necessary. Kitchens with gas fired appliances must have the mechanical ventilation interlocked with the gas supply. AHS can supply a gas interlock panel to be located in the kitchen, with an emergency stop button, plus start, stop, reset switches and fault indication. A matching quick response gas valve can be supplied.
AHS Specialist Services can advise on all these details to ensure a successful installation.
