Biasi Gas Restrictor Propane BI1573503

The Biasi BI1573503 is a propane (LPG) gas restrictor supplied as a kit. It is fitted within the gas train of compatible Biasi Basica COND M275V appliances to set the correct gas flow for propane operation. The restrictor is a small but critical component where the appliance is commissioned or converted to run on LPG.

• The appliance is running on propane but the gas rate cannot be set within the required range.
• Flame picture is poor, with lifting, yellowing or unstable combustion at the burner.
• The existing restrictor is missing, damaged, or has been removed and not refitted.
• Combustion readings fall outside the expected figures for propane and cannot be corrected by adjustment alone.
• The restrictor has been disturbed or lost during servicing of the gas train.

• Confirm the appliance model against the fitment list above, as the restrictor is specific to these Basica COND M275V variants.
• Check the appliance is running on propane, since this restrictor is intended for LPG and not natural gas.
• Verify the existing restrictor is present and correctly sized before ordering a replacement.
• Have the appliance gas rate and combustion readings checked by a competent Gas Safe registered engineer after fitting.