EN 1458-2-2011 pdf download.Domestic direct gas-fired tumble dryers of types B22D and B23D, of nominal heat input not exceeding 6 kW – Part 2:Rational use of energy.
This EN 1458-2 specifies the requirements and test methods for rational use of energy, including measurement of both gas and electrical energy consumption, of domestic direct gas-fired tumbie dryers, of types B2 and B, of nominal heat input not exceeding 6 kW. hereafter referred to as apphances”.
This European Standard does not apply to:
a) catalytic combustion appliances:
b) appliances designed exclusively for industrial purposes:
c) appliances intended to be used In locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere:
d) appliances of the condensing type wherein the heated air and products of combustion used for the drying process are dehumidified by cooling with water or air;
e) appliances intended to be used in vehicles or on board ships or aircraft.
This European Standard covers type testing only.
2 Normative references
The following referenced documents are Indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (Including any amendments) applies.
EN 1458-1:2011, Domestic direct gas-fired tumble dryers. of types B22D and B23D, of nominal heat input not exceeding 6 kW— Part 1: Safety
EN 61121, Tumble dryers for household use — Methods for measuring the peiformance (IEC 61 121,modifled)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 1458-1:2011 apply.
4 Energy consumption
4.1 Requirements
The gas and electrical energy consumptions of the appliance shall be determined in kW/h in accordance with the method of test given in 4.2.
The gas energy consumption of the appliance shall be recorded separately from the electrical energy
consumption.
The appliance shall have a gas energy consumption (based on gross calorific value) not exceeding 1.11 kWhllg of standard load.
4.2 Method of test
4.2.1 General test conditions
The electrical energy consumption shall be measured in accordance with EN 61121 and the energy consumption recorded in kWh.
The volume of gas utilised during this test is measured with a gas meter and the gas energy consumption (in kW/h) determined as described in 4.2.2.
The tests shall be carried out with all reference gases according to the category of the appliance (see
EN 1458-1:2011).
4.2.2 Determination of gas energy consumption
The gas energy consumption, E9. is determined in kW’h using the following equation:EN 1458-2-2011 pdf download.