Airflow Quietair brochure

ZONES FOR EXTRACTOR FANS

WHAT IS IP RATING? IP stands for ingress protection and consists of two digits measuring how well a product is protected from both solid objects and liquids. The first digit tells us how well the product is protected from solid objects and the second one is about resistance to water. A product with a rating of IPX5 can resist a sustained, low-pressure water jet sprays from any direction. The testing lasts for 15mins and the volume of water is 12.5 l/min. QuietAir range is IP45 rated meaning it can be fitted anywhere in Zones 1 and 2.

UK Building Regulations ‘’ Requirements for Electrical Installation’’ specify the installation of fans within bathrooms and showers by identifying a series of zones.

ZONE INFORMATION ZONE 0

Fig. 2

Outside Zones

Outside Zones

The area inside of the bath or a shower tray that can physically hold or contain water which prohibits any fan from being installed. ZONE 1 - QT100, QT120 The area directly above the zone 0, limited to a height of 2.25m from the finished floor level. IPX4 fans can be installed in zone 1 if the shower head is fixed and cannot be rotated towards the fan. Otherwise, IPX5 is required. ZONE 2 - QT100, QT120 This is the zone beyond zones 0 and 1, continuing 0.6m horizontally and up to 2.25m vertically. IPX4 or higher protection is required. We recommend that all fan installations must be carried out by a fully qualified and registered electrician.

2

2

0.6m

0.6m

2

2

1

2.25m

1

0

2

Fig. 3

Fig. 1

Outside Zones

2

2

0.6m

Outside Zones

0.6m

1

2

1000 mm

1000 mm

2.25m

2

0

2

Note: Air flow rates applicable to England, Wales and Northern Ireland A cooker hood extracting directly to outside is the preferred method of kitchen ventilation. When using QuietAir fans on their own or in conjunction with a recirculating cooker hood, Airflow recommends they are positioned a reasonable distance away from the hob as shown in Fig 3. This is to cut down on grease emitted from the hob that can build up in the fan and the duct system.

Outside Zones

14

15