Article 2U.K.Definitions

[F1The definitions set out in the Ecodesign for Energy-Related Products Regulations 2010 apply; and for any term that is not defined in those Regulations, the definitions set out in Directive 2009/125/EC of the European Parliament and of the Council of 21 October 2009 establishing a framework for the setting of ecodesign requirements for energy-related products, as it had effect immediately before IP completion day, apply. The following definitions also apply—]

1.

‘Fan’ means a rotary bladed machine that is used to maintain a continuous flow of gas, typically air, passing through it and whose work per unit mass does not exceed 25 kJ/kg, and which:

  • is designed for use with or equipped with an electrical motor with an electric input power between 125 W and 500 kW (≥ 125 W and ≤ 500 kW) to drive the impeller at its optimum energy efficiency point,

  • is an axial fan, centrifugal fan, cross flow fan or mixed flow fan,

  • may or may not be equipped with a motor when placed on the market or put into service;

2.

‘Impeller’ means the part of the fan that is imparting energy into the gas flow and is also known as the fan wheel;

3.

‘Axial fan’ means a fan that propels gas in the direction axial to the rotational axis of one or more impeller(s) with a swirling tangential motion created by the rotating impeller(s). The axial fan may or may not be equipped with a cylindrical housing, inlet or outlet guide vanes or an orifice panel or orifice ring;

4.

‘Inlet guide vanes’ are vanes positioned before the impeller to guide the gas stream towards the impeller and which may or may not be adjustable;

5.

‘Outlet guide vanes’ are vanes positioned after the impeller to guide the gas stream from the impeller and which may or may not be adjustable;

6.

‘Orifice panel’ means a panel with an opening in which the fan sits and which allows the fan to be fixed to other structures;

7.

‘Orifice ring’ means a ring with an opening in which the fan sits and which allows the fan to be fixed to other structures;

8.

‘Centrifugal fan’ means a fan in which the gas enters the impeller(s) in an essentially axial direction and leaves it in a direction perpendicular to that axis. The impeller may have one or two inlets and may or may not have a housing;

9.

‘Centrifugal radial bladed fan’ means a centrifugal fan where the outward direction of the blades of the impeller(s) at the periphery is radial relative to the axis of rotation;

10.

‘Centrifugal forward curved fan’ means a centrifugal fan where the outward direction of the blades of the impeller(s) at the periphery is forward relative to the direction of rotation;

11.

‘Centrifugal backward curved fan without housing’ means a centrifugal fan where the outward direction of the blades of the impeller(s) at the periphery is backward relative to the direction of rotation and which does not have a housing;

12.

‘Housing’ means a casing around the impeller which guides the gas stream towards, through and from the impeller;

13.

‘Centrifugal backward curved fan with housing’ means a centrifugal fan with an impeller where the outward direction of the blades at the periphery is backward relative to the direction of rotation and which has a housing;

14.

‘Cross flow fan’ means a fan in which the gas path through the impeller is in a direction essentially at right angles to its axis both entering and leaving the impeller at its periphery;

15.

‘Mixed flow fan’ means a fan in which the gas path through the impeller is intermediate between the gas path in fans of centrifugal and axial types;

16.

‘Short-time duty’ means working of a motor at a constant load, which is not long enough to reach temperature equilibrium;

17.

‘Ventilation fan’ means a fan that is not used in the following energy-related products:

  • laundry and washer dryers > 3 kW maximum electrical input power,

  • indoor units of household air-conditioning products and indoor household air-conditioners, ≤ 12 kW maximum airco output power,

  • information technology products;

18.

The ‘specific ratio’ means the stagnation pressure measured at the fan outlet divided by the stagnation pressure at the fan inlet at the optimal energy efficiency point of the fan.

Textual Amendments