The gas valve designed for propane operation is part of the kit for changing the boiler from natural gas to propane. The socket for the plug must complywith the relevant standard and have thegrounding pin connected to a PE or PENcable yellow-green. Alpha Heating Spares. Protherm 80e Combi - heating cuts out. The instructions are an integral part of the appliance and must, to comply with the current issue of the Gas Safety.
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