Abstract

This document contains an expansion of the scope of EN 15502-2-1:2022+A1:2023 and provides requirements needed for this expansion.This document covers gas-fired central heating boilers from the types C1 , C3 up to C9 and the types B2, B3 and B5 that use combustible gases of gas group 4Y at the nominal pressure of 20 mbar. It concerns fully premixed appliances equipped with a Pneumatic Gas/Air Ratio controller (PGAR) or an Adaptive Combustion Control Function (ACCF) that are intended to be connected to hydrogen gas grids where the quality of the distributed hydrogen gas is likely expected to stay within a Wobbe range of 42-46 MJ/m3.

Begin

2023-06-30

WI

00109070

Planned document number

DIN CEN/TS 15502-3-3

Project number

03201030