XP Guide and Glossary
6Pages

When determining the method ofventilation and flow rates the requirements of all authorities concerned must be observed. General An electrical product in a bathroom orshoweroom must be situated in accordance with IEE zoning requirements. For additional safety Xpelair LoVolt SELV products operating at 12 volts should be considered. 2.Calculate performance requirement Multiply room volume by the number of air changes appropriate to the room type from the guide table opposite.Example continued: Recommended AirChanges Per Hour for domestic kitchens is 10 to 15. 18m Splash Areas Where a fuel appliance is fitted with a nonbalanced flue, adequate air replacement must be provided to prevent fumes being drawn down the flue when the fan is operating at its maximum performance. Refer to Building Regulations for specific requirements. Exhaust air must not be discharged into a flue used for exhausting fumes from applications supplied with energy other than electricity.Intake fans or air replacement grillesshould be sited well away from the flue to ensure that gases are not reintroduced into the building. See Building Regulations. Fuel Burning Appliances Air Replacement > A tight fitting door can prevent a fan fromreceiving adequate air replacement. A suitable gap between the underside of the door and the floor finish is usually adequate for toilets and bathrooms although Xpelair Slimline privacy air transfer grilles are available. For larger extract volumes air replacement should be carefully considered particularly in tightly sealed properties. > Calculate room volume Take measurements in metres. We take the air that surrounds us for granted and yet small changes in for example - air purity, temperature, humidity and velocity -can effect our performance and at worst make us ill. Designing a ventilation system can in most cases be easily achieved by following the step by step approach described below. However, if the space or the activity is unusual, call in the experts - Xpelairwho will be happy to advise and assist in proposing the most appropriate scheme. Choosing a Ventilation Solution The type of system chosen will bedependant on the application and building layout. A ventilation system requires as even a flow of air across an area as possible. The most cost effective method of achieving this is by extract ventilation with appropriate air replacement provision. In the leisure industry input ventilation ispreferred with air escaping from the premises through doors and other available openings. Many schemes use both extract and intake fans which are often connected to a single control system. For fully automatic operation, a range of sensors are available which will switch On immediately when required but only when necessary for energy efficiency.1. > 3 x 10 ACH - 180m > 3 3 3 Multiply: /h, 18m x 15 ACH = 270m /h.Therefore a fan with an extractperformance between 180-270m3is appropriate. NOTE: it is always better to pick a fan at the higher end of the range rather than risk unsatisfactory ventilation. Length x Width x Height = Room m3. 3.Select your fans from the product extract performance table opposite Example continued: selection might be a GX6 product: 266m Example: A domestic kitchen 3m x 2.5m x 2.4m = 18m3 > 3 /h, DX400 orCF40: 245m > 3 /h, Kitchen canopy: 350m Window, wall, ceiling or roof? For effective operation the extract pointshould be as far away from the source of air replacement - usually the door, and as close to the source of condensation or smells as possible.This usually determines the type of fan(window, wall etc.) If the room has no opening windows then a model fitted with an overrun timer will meet the requirements of the building regulations.For automatic control choose from theconvenience of an optional Xpelair humidity or PIR sensor. > 3 /h. Further Considerations 176 >

Photo and X-ray Darkrooms* 6 - 8 Public House Bars 12 - 15 ProductAirflow (m > 3 /h)minmax Recording Studios 10 - 12 Restaurants* 10 - 15 Digitemp350390 Schoolrooms* 8.3 l/s/Person WH30, WH60, WHP30 & DCH3000A115311 Shops and Supermarkets 8 - 10 ScreenHeat & PlinthHeat110250 Shower/Bathrooms 15 - 20 SweepFan876113959 Stores and Warehouses 3 - 6 Electrostatic Air Cleaners4002000 Squash Courts 4 - 6 DigiPure7633276 Toilets (Public)*5 min / 6 l/s/Pan Toilets (Domestic) 6 - 10 ProductAirflow (m > 3 /s)minmax Utility Rooms 15 - 20 Welding Shops 15 - 30*Taken from CIBSE Guide, with their kind...

Zone 3 - is limited by: 1.The vertical plane(s) external to Zone 2and parallel vertical plane(s)2.4m external to Zone 2, and2.The floor and the horizontal plane 2.25m above the floor.In addition, where the ceiling heightexceeds 2.25m above the floor, the space above Zone 2 up to the ceiling or a height or 3.0m above the floor whichever is lower, is Zone 3. Zone 1 - is limited by: 1.The upper plane of Zone 0 and the horizontal place 2.25m above the floor, and2a.By the vertical plane(s) circumscribingthe bath tub or shower basin and includes the space below the bath tub or shower basin where...

Bath onlyShower without Tray (with permanently fixedpartition - fixed water outlet not demountable) Shower with TrayShower without Tray (with permanently fixedpartition - water outlet demountable) > Bathroom and shower room fans for wall, window and ceiling installations

Tel:+44(0)1733 456 737Fax:+44(0)1733 456 727 Xpelair is a great British brand in everysense of the word but for many years it has been a world leader in the ventilation and air quality markets with sales in excess of fifty countries world-wide. Xpelair has achieved this by taking into consideration global market requirements and ensuring products are developed to meet these needs, as well as developing products for specific countries and regions, taking into consideration approvals, electrical supply and climate. Tel:08709 000430Fax:08709 000530 > Tel:08700 102829 Regular maintenance and...

AC - > Alternating current G.S.M. - > Galvanised sheet metal ach- > Air changes per hour. The numberof times the volume of air in a room needs to be changed in one hour depending on the activity in that space. Normally given as a range e.g. 15-20 ach based on the level of usage. House Dust Mite > GenusDermatphagiodes - skin eater. Species: pteronyssinus. Arachnids about 0.2 - 0.3mm long. Habitat: bedrooms and family rooms where shed skin flakes and warm moist conditions are present. Because they are heavily contaminated with faecal pellets, dust mites are identified as allergenic material...