ACV BG2000 S/55 V13 gas block burner 237D0156

This is a gas block burner from ACV, catalogue article 129.205.003, also listed as manufacturer codes 237D0156 and 129.205.003. Parts of this type integrate the fan, gas valve, combustion head and control components into a single assembly that mounts onto the boiler front plate. The burner prepares the air-fuel mixture, ignites it and monitors the flame through an ionisation electrode. The control box inside the unit sequences the start-up: pre-purge, ignition, flame proving, and then modulation according to the heat demand. When selecting a replacement block burner, the key parameters are the output range the burner can modulate over, the fuel type (natural gas or LPG – conversion may require kit changes), the blast tube length and combustion head geometry, which must match the existing chamber depth and flange pattern. It is also critical that the burner control is compatible with the system’s safety requirements and that the gas pressure and supply line are adequate. For the specific article BG2000 S/55 V13, the engineer should verify that the application matches these selection criteria based on the appliance datasheet. No further specifics about this unit’s ratings are available from the product data provided.