Brännare. Kokare

This document is applicable to hydronic fan coil units (FCU) as factory-made single assemblies which provide the functions of cooling and/or heating but do not include the source of cooling or heating. This document is applicable to both air free delivery and air ducted units with a maximum external static pressure due to duct resistance of 300 Pa max. This document specifies methods for the determination of the acoustical performance of fan coil units, defining standard working condition and installation. It is not the purpose of this document to specify the tests used for production or field testing. NOTE For the purpose of remaining clauses, the term "unit" is used to mean "fan coil unit".

This document applies to shell boilers with volumes in excess of 2 l for the generation of steam and/or hot water at a maximum allowable pressure greater than 0,5 bar and with a temperature in excess of 110 °C. For the purpose of this document the following pressurized parts are included: — the shell boiler as one entity of pressure equipment including all the pressure parts from the feedwater/hot water inlet (including the inlet valve) up to and including the steam/hot water outlet (including the outlet valve or, if there is no valve, the first circumferential weld or flange downstream of the shell boiler or if applicable the outlet header); — all superheaters, economizers and interconnecting piping; — additionally, the piping that is connected to the boiler involved in services such as draining, venting, desuperheating, etc., up to the first isolating valve or, if there is no valve, the first circumferential weld or flange downstream of the shell boiler or if applicable the outlet header/piping. This document does not apply to the following types of boilers and equipments: a) water-tube boilers; b) non stationary boilers, e.g. locomotive boilers; c) thermal oil boilers; d) boilers where the main pressure housing is made of cast material; e) pumps, gaskets, etc; f) brickwork setting and insulation, etc. NOTE 1 Further information on shell boilers is given in Annex A. NOTE 2 Stainless steel boilers are covered by EN 14222:2021.