ff HTM 03-01 compliance

ff Health and safety of patient care and staff

ff Patient comfort

ff Maintenance and inspection

ff Support through design - capital and running costs

Healthcare premises

ventilation

Healthcare premises

Solving hospital ventilation issues and providing energy saving solutions.

Health Technical Memoranda (HTM) gives comprehensive advice and guidance on the design, installation and operation of specialised building and engineering technology used in the delivery of healthcare. The focus of HTM guidance remains on healthcare-specific elements of standards, policies and up-to-date established best practice. Healthcare providers have a duty of care to ensure that appropriate governance arrangements are in place and are managed effectively.

Healthcare premises

Energy SavingIntelligent controls enhance performance whilst saving energy and money.

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Healthcare premises

BlueSense energy saving package

Energy Saving

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The sign of energy saving products, services and expertise

=Hospital ventilation unit with integral controls

EC fan with full control Sensor options

Specialised healthcare ventilation

Typical areas within healthcare premises where ventilation systems serving the following are considered critical within the HTM design and specification process. The following departments will usually have specialised ventilation requirements, either for a single room or throughout a suite of rooms.

Operating suites Including recovery areas of any type, including rooms used for interventional procedures.

Airborne isolation facilities Any area requiring isolation from infectious diseases or viruses. Rooms under negative pressure.

Critical care areas Generally life threatening or intensive care. ICU or CCU.

Invasive treatment Including endoscopy and Bronchoscopy rooms. Theatres/surgery.

Containment level 3 laboratory Biological Safety Level (BSL) typically where staff are working on microbes that can cause serious or potentially lethal disease through inhalation.

Pharmacy Pharmacy aseptic preparation facilities.

Sterile services Inspection, assembly and packing room in a sterile services department. Hospital Sterile and Decontamination Unit. (HSDU) Aseptic unit.

Operative imaging unit CT and MRI, PET, Radiology.

Health and safety of patient care and staff

Healthcare premises

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Frost / Fog coil Finless plain copper tube, close to inlet for component protection and reduced condensation.

Inlet / Outlet cowls Coated, bolt on, 2.0m/s with 12mm protective mesh.

Case construction All units built with aluminium tubular frame and galvanised steel sheet panels tested to BS EN 1886 to achieve Thermal Bridging (TB2), Thermal Transmittance Class T2 and Deflection Class D1.

Factory airtightness test pre-delivery, Class L2 test at +700Pa and -400Pa, Site airtightness test; Class L2 +700/ - 400Pa.

Inlet and Exhaust dampers Motorised, spring return damper actuator, with C3 2% low leakage aluminium blades, metal cogs and linkages.

Fans High efficiency EC fan and motor, with quick change plug connections, located on the bottom deck where possible, to improve redundancy for scheduled maintenance.

Pre filter ISO course grade (>90%) panel filter with fitted magnehelic gauges.

Access doors Minimum 500mm hinged access for component cleaning. Double latch entry for pressurised sections.

Protective coating Internal smooth coated finish on all units. External coating for weatherproof units available in a choice of colours.

Channel base Channel size to meet trapping requirements up to 300mm.

Typical plate heat exchanger

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Lifting beam Extended lifting beam for quick fan change.

Drain pan Fixed stainless-steel drain pan with 500mm cleanable access to both sides, and 1-20 fall in all directions.

Heating coil LPHW copper fins, copper tubes galvanised if coastal, will be protectively coated.

Cooling coils Copper tube and fins, electro tin coated with hinged access both sides, < 2.0m/s face velocity.

Complete with separate removable moisture eliminator bank.

Secondary filter ISO ePM1 >=80% bag filters, front clip in and withdrawal, with magnehelic gauges.

Attenuators Sound absorbing infill protected by perforated sheet metal and protective membrane.

Heat exchanger ErP EU1253 73% minimum efficiency aluminium plate heat exchanger with face and bypass damper. Thermal Wheel or Run Around Coil also available.

Viewing ports Viewing ports for component and task operation with IP56 inspection lights from central AHU switch.

Traffolyte labelling 100mm identification labelling.

Supply and Extract dampers Supply and extract manual shut off dampers to class C3 2% low leakage with aluminium blades, metal cogs and linkages.

Healthcare premises

Component selection

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Ecovent®

Counterflow Features and Benefits

Cooling coil Cooling coil with copper tube and fins electro tinned, housed in stainless steel casing. Face velocities below 2.0m/s to reduce water carry over and minimum 500mm hinged access both sides for cleaning.

Drain pan Stainless steel drain pans with 500mm minimum cleanable access sections to both side of coils. Fitted with washdown sections and sloping trays with 1-20 fall in all directions.

Case construction Double skinned cases, flat and stacked configuration. All units built with an aluminium tubular frame and galvanised steel sheet panels, with resin bonded mineral wool slab infill.

Attenuators In built attenuators with an sound-absorbing infill protected by an perforated sheet metal casing and protective membrane lining with an service life of at least 25 years. 500mm minimum access both sides of the attenuator pod for cleaning.

Access doors Access doors hinged, with minimum 500mm clearance. Viewing ports positioned ergonomically on both bottom and top desk for easy viewing.

Supply and Extract dampers Supply and extract manual shut off dampers with aluminium blades, metal cogs and linkages to class C3 2% low leakage.

Fan High efficiency EC, or AC Plug Fan and Motor assemblies with integral temperature protection thermistors positioned on positive side to drain trays. Selected to meet volumetric margin on 10%.

Lifting beam Extended lifting beam for larger fans for quick replacement.

Humidification If humidification is required, a steam injection or electric self-generating type will be used. All casing section will be stainless steel and fitted with drain tray and 500mm minimum access both sides for cleaning.

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Heat exchanger Plate heat exchanger to ErP EU1253 minimum 73% efficiency for specialised ventilation areas. Face and bypass damper supplied to C3 2% low leakage specification.

Inlet / Outlet cowls Inlet and Outlet cowls or Louvres will be supplied for external units, weather coated and bolted on so they can be lifted off and cleaned. Sized for a face velocity less than 2.0m/s and fitted with a 12mm protective mesh.

Inlet / Outlet dampers Inlet and Outlet dampers with aluminium blades, metal cogs and linkages to class C3 2% low leakage. A motorised spring return actuator will be fitted external to the airstream.

Heating coils LPHW copper fins, copper tubes galvanised if coastal will be protectively coated.

Frost / Fog coil Frost / Fog coil designed to achieve 5Deg C protection using low pressure hot water bare copper tube, and galvanised casing; if coastal will be protectively coated.

Pre filter Panels fIlter using synthetic media with metal frames to ISO course grade (>90%), preferable front withdrawal, or side with external fitted magnehelic gauges for clean and dirty indication.

Secondary fIlter Secondary bag main filter for specialised ventilation areas to ISO ePM1 >=80%. Front withdrawal and in metal housing. Supplied with external fitted magnehelic gauges for clean and dirty indication.

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Support through design

HVAC projects

Maintenance corridor

Controls At VES, our extensive history of controls design, manufacture, installation and maintenance spanning four decades ensures we achieve optimal performance from our own air handling units. Our focus is to provide competitive solutions, whilst offering many advantages including our knowledge, energy efficiency strategies, integrated controls, communication and commissioning.

Flat packing There is often a requirement for new air handling units to be supplied in a flat pack or sectional format to overcome restricted access. The AHU is fully built and tested at VES HQ before being dismantled then once the components arrive on-site, our in-house team of mechanical and electrical engineers are on hand to re-build the units.VES also offer a bolt together service.

Site installation Our established industry leading product portfolio combined with our building services expertise, allows VES to undertake full supply and installation projects for a variety of sectors.Working closely with our customers from initial consultation through to project delivery and completion, our VES projects team thrive on delivering complete HVAC solutions.

Factory and site leakage tests VES offer FAT and SAT AHU leakage tests where the AHU will be assembled in its required format.

The results will be tested under positive and negative pressure in accordance to EN 1886:2007 specification.

VES operates an HVAC projects division, which is a market leader in the repair and refurbishment of any make or model of air handling equipment.

VES can provide any bespoke single or double weatherproof service corridor for maintenance in all weather conditions, built to suit your specification.

Single weatherproof service corridor Double weatherproof service corridor

© 2020 VES HPV02P - 02/2020

VES Head Office Eagle Close, Chandlers Ford Industrial Estate, Chandlers Ford, Eastleigh, Hampshire SO53 4NFTel: +44 (0)23 8046 1150 Fax: +44 (0)23 8026 1204

Offices in London, Manchester, Glasgow and Birmingham

ves.co.uk vesdirect.co.uk sales@ves.co.uk

VES reserves the right to amend product specifications and details without notice.

Other products and services from the complete range of VES HVAC solutions

Air Handling Units f Supply and extract, combined or separate f Heat recovery including crossflow plate heat exchangers, thermal wheels and run-around coils f Plantroom or weatherproof, flat or stacked f Fitted silencers, inverters and controls f Matching DX condensing units f Various case constructions including EN 1886 certified units Duct Fans f In-line centrifugal, with forward or backward curved impellers f Round, axial and mixed flow fans f Fitted silencers available on all units f Manual and automatic speed controllers available Twin Fans f For ceiling void, plantroom and weatherproof f Many models and configurations f Fitted auto-changeover system Hybrid Units

f Natural ventilation enhanced by a low power fan f Utilises a combination of automatic mechanical ventilation and manually operated windows to achieve classroom comfort conditions f Simple user interface with indication of operating mode f Slimline, lightweight construction, saving space and easing installation f Available in a range of sizes with the ability to add heating coils when required Roof Extract Units f Three ranges for volume and pressure f Curb and soaker sheet bases Wall and Ceiling Fans f All types for commercial, industrial and domestic premises Kitchen Hood Extract Fans f Heavy duty high temperature fans for hot greasy air f Motors out of airstream f Single inlet fans, in-line and vertical jet roof units Control Panels f Off the shelf and built to order panels f Air quality sensors and energy savers f Intelligent control software f A range of remotes including touch screen Noise Control f Matching silencers available for all ventilation products f Silencers designed to meet noise criteria f Cleanable silencers f Weatherproof silencers HVAC Projects f Plant refurbishment f Energy saving upgrades f Noise reduction f Site surveys f Kitchen ventilation f AHU flat pack installation f Maintenance f Spares