BS 8446:2020 pdf free.Installation and maintenance of openflued, non-domestic gas-fired laundry appliances一Specification.
BS 8446 The duty of an employer to carry out a risk assment is imposed by the Management of Health and Safety at Work Regulations 2006 [2]. The risk assessment should cover, but not necessarily be limited to:a) all matters described in this British Standard regarding installation requirements; and b) matters affecting the health and safety of employees, self-employed persons and others during operation, maintenance, cleaning and installation.It might be necessary for persons with knowledge of dfferent areas to be involved in the risk asessment,e.g. the gas installer or the laundry operator.For more information, reference should be made to IGEM/SR/24 [23].Prior to the installation of any non-domestic laundry appliance, a risk asssment shall be carried out to ascertain the best location for the appliance.For a tumble dryer, the drying load capacity should be borne in mind during selection, together with the intended location and the provision of make-up air (see Clause 10) and exhaust venting, being particularly mindful of the manufacturer’s maximum permitted exhaust runs (see Clause 12).For rotary ironers, the size of the laundry to be ironed through the roller should be borne in mind during the selection, together with the intended location, the requirements for space to feed and return the
laundry from the iron, and the provision of make-up air (see Clause 10) and exhaust ducting, being particularly mindful of the manufacturer’s maximum permitted exhaust runs (see Clause 12). A typical rotary ironer is ilustrated in Figure 1 The laundry appliances covered by this British Standard are generally stand-alone. Appliance flexible connectors, ducting and make-up air grilles are not supplied with these laundry appliances.The istaller should check the data given with a laundry appliance to establish the basis on which the heat input is quoted.For the purposes of this British Standard the ratio of gross: net heat input is 1:1.11. For example, to convert a 5 kW input appliance, gross calorific value (C.v.) to the equivalent net CW. heat input, the following equation is used.5/1.11 = 4.504 kW heat input.The installer should, in all cases, refer to the data plate and/or take other steps to verify that the laundry appliance is suitable for the pressure and type of gas to be burnt. Conversion to another gas, if necessary, should be carried out strictly in accordance with the manufacturer’s instructions using the manufacturer’s kit of parts.If there is any doubt as to the suitability of a laundry appliance for a particular gas, then the laundry appliance manufacturer should be consulted.Further information on the lablling ofgas appliances is given in DD221 BS 8446 pdf download.