Grease Control Intelligent Control Solutions Canopy Ventilation Brochure.pdf · Kitchen Ventilation Systems Island & Wall Mounted Canopies Grease Control Fire Suppression Intelligent

Kitchen Ventilation Systems

Island & Wall Mounted Canopies

Grease Control

Fire Suppression

Intelligent Control Solutions

Fans & Ancillaries

AN INTRODUCTION TO OUR KITCHEN VENTILATION

Airtherm Engineering Limited supply a wide range of standard and bespoke kitchen ventilation systems that can be designed and installed to suit virtually any application to meet the demands of the most modern commercial kitchens. We work closely with local authorities, M&E engineers

and main contractor’s, with the aim to ensure full

compliance to all current legislations. Our installation

engineers are competent in their field and carry all

necessary site certification with CSCS cards, IPATH,

PASMA and scaffold towers. Our engineers strive

towards excellence in each and every project which

they undertake.

We can also offer many bespoke solutions to clients

outside of the scope of ventilation and air conditioning.

Our highly skilled work force adapt at all types of light

to medium metal fabrication including stainless steel,

aluminium and mild steel.

If required, the input air can be pre-heated for additional

internal staff comfort during the cold winter months. All

products can be configured to suit the individual needs of

each application.

Our own Canvent Canopy systems can be configured to

suit virtually any application and a range of advanced

features such as heat recovery, UV filtration, gas safety

detectors and fire suppression devices can all be fitted

as necessary.

Manufacture

All canopies are manufactured from 304 (En 1.4301) or 316 (En

1.4401) stainless steel (where specified) and are suitably braced

to prevent product distortion. All joints are welded and polished.

Our Canopies are cut, punched and folded into sub sections and

factory assembled by means of computer controlled seam welds,

and non-visible mechanical fixings. Systems are manufactured

to the strict guidelines of DW/172, British Standards and

conform to HSE for commercial kitchen ventilation. Wall

mounted or island canopies can be manufactured to meet almost

any dimension but typically 1000mm to 8000mm long. The

system ductwork is manufactured and installed to incorporate

cleaning and maintenance access doors to fully comply with

DW/144 & TR/19 standards.

DESIGN, INSTALLATION & MAINTENANCE

Maintenance & Contracts In our pursuit of customer satisfaction

we have now introduced our tailored

service contracts which offer complete

peace of mind, covering unexpected costs

from system isolation and dissatisfied

customers of your own.

All of our maintenance contracts are

made to meet the demands set by the

client and the specific requirements

dictated by the unique design and layout

of the ventilation system. Our engineers

will visit the client’s premises at regular

planned intervals to carry out agreed

works and report to the client ensuring

the system remains efficient and reliable

when they need it most.

It is crucial to regularly service your

ventilation system not only to maintain

correct function and avoid lost revenue

from unplanned closure of your premises

but also to minimise the risk of fire and

other health and safety factors.

By entering into a maintenance

agreement with us, you are fulfilling

your obligation ensuring procedures are

in place for regular checks.

Design

Installation

Our installation engineers are

competent in their field. The all carry

the necessary site certification with

CSCS cards and hold the relevant

safety accreditations. Our engineers

strive towards excellence in each and

every project they undertake and are

carefully vetted to ensure that they are

fully trained and have adequate

experience in their field of operation.

Airtherm strive to keep up with the

changing demands of the industry in

order to maintain our proud position as

a market leader. From design to

installation, after sales to maintenance,

Airtherm Engineering Ltd have an

ongoing commitment to provide the

best available service for the customer.

By managing projects closely, adhering

to strict safety guidelines and

demanding the highest quality

workmanship, we continue to build our

reputation for completing projects on

time and within budget using the most

efficient solutions

We hold CHAS, Construction Online &

Safe Contractor accreditations to

satisfy clients of our commitment to

Health & Safety.

System calculations are quickly

available by entering the appliance

details and the intended kitchen

canopy configuration and

dimensions into our iCalc sizing

system.

We work closely with local

authorities, M&E Engineers and

main contractors to ensure full

compliance to current legislation.

Airtherm’s design department,

contract engineers and site

installation teams have a wide

range of knowledge and experience.

Projects are carried out to ensure

full compliance with all statutory

requirements and standards.

Whatever the requirements of your

project, we guarantee a solution of

the highest quality, that has been

rigorously tested and offers

outstanding performance in its

field.

AutoCAD drawings are produced

by our highly experience team of

engineers for approval.

GREASE, LIGHT & UV FILTRATION

Grease Filters

Canopy Lighting The lighting units are designed and

manufactured to deal with wide ranging

and varied commercial applications and

can deal with humidity, condense rich,

and hot and greasy environments.

These units are normally recessed into

the canopy ceiling providing easy

cleaning and maintenance of the unit

exterior. This also helps to greatly

reduce the build-up of grease and other

contaminates usually associated with

the commercial kitchen environment.

All of our lighting units are approved for

use in commercial kitchen applications,

meet with DW172 & HSE guidelines.

Face plates are satin finished, stainless

steel to match the hood interior.

UV Filtration A UV filtration system can reduce

grease build-up and common

odours by using UV light to break

down organic material that can

plague kitchen canopies.

UV filtration reduces the need for

duct work cleaning and can prove

more efficient than conventional

filtration methods.

The UV Filtration works by using

UVC lamps to break down organic

material by a combination of

photolysis and ozonolysis and

destroys odours more efficiently

and cost effectively than

conventional systems.

All filters are manufacture from

stainless steel and provided with

grips for easy removal and

installation.

Baffle grease filters collect grease

and stop flames from penetrating

into the hood exhaust ductwork.

They are designed to prevent

flames from passing through the

baffles and can withstand various

temperature levels. The solid baffle

construction of each hood filter

ensures a reliable flame barrier

when you need it.

Practising efficient grease removal

lowers the risk of incidents such as

flare-ups.

VOLUME CONTROL DAMPERS

Principally designed for our natural ventilation range, our plastic volume control dampers have a shut off level far surpassing that of regular volume control dampers and even some shut off dampers.

Independent tests show no leakage

below 10Pa; the pressure most likely

to be found in natural ventilation

installations.

With even 10Pa rarely being exceeded

in natural ventilation situations, it is

clear how uPVC volume control

dampers can enhance the efficiency of

your new natural ventilation system.

Our Volume Control Dampers have numerous features designed to give maximum performance. We use an aerofoil blade, shaped to provide exceptionally low resistance to air travelling over it. The standard out of airstream linkage is

also fitted, protecting the precise gears

from dust and moisture.

This linkage system uses nylon gears and

wearing parts, coming together to produce

a damper with exceptionally low

operating torque. Not only does this make

it easier for you to adjust your damper

manually, but, if motorised, it means

dramatically reduced loading on actuators

and therefore an extended working life.

Airtherm have a large range of both metal and uPvc dampers in circular, square and rectangular shapes with sizes from 300mm to 1800mm.

Volume control dampers need not be

overly complicated. The only

requirements are that they should

have a low leakage when closed, not

create too much resistance when open

and should be easy to operate.

Series VCD Volume Control Dampers

satisfy all of these requirements - the

75mm blade pitch with a blade less

than 1cm thick at it's widest point,

results in very little resistance when

open, while the standard blade is

shaped perfectly to reduce leakage

when closed.

GRILLES & DIFFUSERS

A consistently popular product, ceiling diffusers are effective supply units suited perfectly to modular ceiling systems.

Normally used in commercial

installations requiring an air change

rate up to about 10 times per hour.

Our louvre faced ceiling diffusers are

especially suitable where people are

working for long periods of time, and

draughts need to be avoided.

Ceiling diffusers are designed to

integrate into lay in T bar ceilings as

standard. However should you require

it, we can fit your CD into burgess

tiles or other tile systems.

Our HVC Series DD Double Deflection Grilles are recommended for supply in a huge variety of applications. The two rows of blades are set at 90

degrees to each other, with one row

set just behind the front most row.

Gaps between the blades are

sufficient to allow easy adjustment of

blades, enabling custom blow patterns

to be created. Whether these be

targeted towards one area or fanned

out to affect a wide area.

Bringing consistent high performance, the standard Egg Crate extract grille has now been joined by the Egg Crate 45 degree grille, giving the same performance. Egg Crate Core is made from thin

aluminium strips arranged into a

lattice. The square holes in the core

are sized 12.5mm x 12.5mm, resulting

in a free area of over 90%. This core is

held within a one of two available

frames. Designed to integrate with the

wider range of grille frames, you can

be sure of design consistency whatever

grille you buy from us.

Supports Attenuation Ventilation Ductwork The ventilation system ductwork

is manufactured and installed to

incorporate cleaning and

maintenance access doors to fully

comply with DW /144 ductwork

standards.

Ductwork selection can vary

dependant on our clients’ criteria;

the options include for spirally

wound, galvanised with or without

the required for mezz flanges or

even 1mm thick stainless steel. All

ductwork can be powder coated

internally and externally to any

colour within the BS or RAL

colour range.

For installation within ventilation

ductwork systems to reduce airflow

noise, these can be fitted with or

without a pod and come in a range

of sizes from 315 dia to 1250 dia

(other sizes available on request).

The end faces will have either

rivnuts/hank bushes to match the

flange details of any associated fan

or spigots if connecting onto spiral

or flexible ducting.

Melinex Lining can be added as an

optional extra in kitchen extract or

moist laden air.

The Big Foot Systems versatile range

offers an array of solutions to support

a variety of air handling units and

ventilation systems. Many larger

air-handling units are made up of

several sectional components that

can be individually crane lifted

directly onto rooftops. Frame kits for

most major manufacturer’s VRV/

VRF units are available from stock.

With the main plant positioned upon

the roof, there is generally a need to

install the associated auxiliary

services. M&E containment such as

ductwork, pipe and cable tray can be

supported from a number of auxiliary

support products.

DUCTWORK & ACCESSORIES

INTELLIGENT CONTROLS

Kitchen Ventilation Controls

Our unique kitchen ventilation controls and intelligent sensors have been developed to deliver optimum control and ease of use of all our ventilation systems. The VGPS-K-CO2 offers a complete single panel package patented by our controls specialist

The system is easy to use because an LCD display

gives solutions and full status information.

The system ensures all fans are running before gas

can be used. It also carries out a gas pressure prove

on the cook line and continually checks that the

incoming gas pressure is sufficient.

In addition, it monitors the carbon dioxide level to

ensure that HSE set levels are not exceeded. Should

the carbon dioxide level rise above 2,300ppm the

panel LCD will advise staff to increase the ventilation

fan speed at the speed controllers.” The maximum

allowed level of carbon dioxide is 2,800ppm, as

published in HSE catering sheet 23 revision 1.

“It is a requirement that all new and refurbished commercial kitchens have their ventilation system interlock to the gas supply in order to ensure the air quality in the working environment”

All products are fully compliant to BS6173: 2009, Gas Safe TB140BB100,BB101, IGEUP11 and IGEUP1A

Design and Support Features Designed from listening to our clients’ requirements, including

kitchen staff.

Gas pressure measuring, true differential pressure across the

solenoid valve.

An engineer can see kitchen and valve seat gas leakage on the

LCD.

An engineer can also see gas pressure and carbon dioxide levels

on the LCD.

All panels designed built and supported by Medem UK.

Compact design: H183mm, W212mm, D97mm

INTELLIGENT CONTROLS

Pressure Sender The differential gas pressure

proving method, as developed

and patented by Medem,

operates by measuring the

pressure differentially across

the inlet and the outlet of a

gas isolation valve using micro

transducers. All other systems

can only see the gas pressure

when the valve is open.

Differential proving enables the

supply pressure to be measured

before the associated isolation valve

is opened. This means that in the

event of gas over pressure or under

pressure the valve would remain

safely shut and reported on the

system LCD.

Carbon Dioxide Sensor

CO2 detection is designed to

deal with its production either

via cooking or biological

processes (namely breathing).

CO2 is roughly equal weight

and density as air it will

therefore naturally diffuse

equally within a space.

CO2 detectors are for the purpose of

monitoring the air quality within an

area to ensure adequate ventilation

is taking place, as such the detectors

should be located with the main body

of the room within the “breathing

zone” (4 to 8 feet) but not in such a

place they'd likely be exposed to a

potential release point (i.e. someone

breathing on it).

Current Monitoring It is a requirement that any

mechanical ventilation within

a kitchen environment (both

supply and extract) is

switched on and running

before the use of any gas

appliances can take place.

With the VGPS-K if the ventilation

is not switched on, the LCD display

informs the operator that the fans

are off and to switch on the fans

and restart the panel.

With the fans on and running the

system will then perform a down-

stream integrity check using our

patented “Differential Pressure

Proving” method.

INTELLIGENT GAS VALVES

Gas Solenoid shut-Off Valves

Series 2000 Solenoid Valves are Safety Shut-off or Control Valves for use on gases in gas families 1, 2 and 3 and are also suitable for use with air within the valves pressure range (see specification). Two valves may be bolted together in tandem to form a double block valve. Series 2000 is a range of Solenoid Operated Safety

Shut-off Valves. Their primary application is the on/off

control of low pressure 1st (town gas), 2nd (natural gas)

and 3rd (LPG) family gases, although they may also be

used as control valves for devices such as automatic

burners and for low pressure air applications.

The valves are available in screwed connections from ¾”

up to 2” and have Flow Adjustment as a standard feature.

Slow Opening valves are available and CPI Switches are

available as an extra. All valves are supplied with plugged

Pressure Test Points in both Inlet and Outlet Ports on both

sides of the valve.

The valve construction is of an aluminium die-cast body

with a solenoid actuator and is maintenance free. There

are no user serviceable parts to the valve. Upon being

energised, the fast opening valve will open instantaneously

whilst the slow opening valve will open.

Features * CE Certificated

* Range from ¾" to 2"

* Flow Restrictor as standard

* Flow Regulation from 0 to 100%

* Full-wave Rectified Coil for quiet operation

* Normally Closed operation

* 200mbar maximum working pressure

* Pressure Test Points on Inlet and Outlet

* Approved to EN161 Group 2, Class A

* Available as Fast or Slow Opening

* Built in filter

* Available with Closed Position Indicator Switch

* 230V, 110V and 24V AC 50/60Hz Versions

* Range of accessories available

* Supplied with PG11 Cable Gland

ANSUL FIRE SUPPRESSION

Safeguarding kitchens with Ansul protection The R102 System conforms to NFPA standards 17, 17a and 96 and is UL300 listed by

Underwriters Laboratories Inc . The system can be supplied with nozzles, detectors, cartridges,

liquid agent, fusible links, pulley tress and elbows as required for the specific commercial kitchen

or restaurant application.

You can choose from either of the following:

Appliance-Specific Design

The most efficient fire protection is accomplished when nozzles are selected and aimed at specific

hazard areas on each appliance.

Overlapping Appliance Protection When flexibility and simplicity are most important, nozzles are placed in a straight line

arrangement providing overlapping agent discharge patterns.

Ansul have set the standard for kitchen fire suppression, detecting and suppressing fires throughout the industry. A unique low pH liquid fire suppressant is used which is equipment friendly and cleans up fast once discharged. “Ansul R102 Suppression System is an invaluable resource for kitchens”

Ansul Fire

Suppression

systems, before

it’s too late!

CASE STUDIES

CANOPY & SUPPRESSION ELMHURST SCHOOL

We liaised with both the

consultant, Fowler Martin,

and the contractor, AC Preou

at all times during the

installation of this Induction

Island Canopy.

The system featureed an

Ansul R-102 Fire Suppression

system, fully recessed grease-

proof lights and a Medem

Control Interlock system.

KITCHEN VENTILATION HALLSVILLE PRIMARY SCHOOL

Our track record of successful

and efficient projects was

demonstrated by this 'Canvent'

island kitchen canopy

installation for the London

Borough Council of Newham.

The 4100 x 2200 x 600 deep

island kitchen canopy was

fitted with grease proof,

recessed lights, stainless steel

grease filters and a R102

Ansul fire suppression system.

WALL MOUTED SYSTEM TIVIDALE SCHOOL

We worked closely with

Sandwell MBC to complete

this installation of a kitchen

ventilation system, complete

with control solution that

featured a thyristor, speed

regulators and gas interlock.

The existing canopy was

removed and a stainless steel

wall mounted extraction

canopy was designed and

installed in it's place, with a

provision for make-up air.

ISLAND CANOPY SYSTEM EDGBASTON HIGH SCHOOL

This project involved the supply

and installation of multiple

kitchen ventilation canopies at a

well-known school in Edgbaston,

Birmingham

The main island canopy sized at

9.0m x 3.0m, complete with

grease baffle filters and lighting.

A condense channel with slope

was designed complement the

existing feature of a 1950's glass

construction.

OFFICE: 0844 809 2509 MOBILE: 07715 360958

FAX: 01562 887312 EMAIL: [email protected]

WEBSITE: www.airtherm.co.uk

AIRTHERM ENGINEERING LIMITED UNIT 8a, GAINSBOROUGH TRADING ESTATE

RUFFORD ROAD, STOURBRIDGE WEST MIDLANDS, DY9 7ND