This manual provides guidance for the installation, servicing and maintenance of central heating boilers, combination boilers, condensing boilers and combined gas fire/back boiler/back circulators that are CE or British Standard (BS) kite marked.
The guidance also applies for a used or second-hand appliance that dosen't carry the CE or BS kite mark, but has a data plate confirming the appliance is suitable for the gas type and pressure, i.e. Natural gas at an appliance inlet pressure of 20mbar and LPG (Propane and Butane) where the supply regulator has been set to provide an operating pressure of 37mbar and 28mbar respectively.
The guidance also applies for a used or second-hand appliance that dosen't carry the CE or BS kite mark, but has a data plate confirming the appliance is suitable for the gas type and pressure, i.e. Natural gas at an appliance inlet pressure of 20mbar and LPG (Propane and Butane) where the supply regulator has been set to provide an operating pressure of 37mbar and 28mbar respectively.