Altecnic Reflex Heating Expansion Vessel HV12C

The Reflex 12 litre Heating Expansion Vessel is an Altecnic expansion vessel intended for sealed heating systems. It absorbs the increased volume of water as the system heats up, limiting the pressure rise seen at the boiler and throughout the circuit. The vessel is part of the Altecnic Expansion Vessels range.

• System pressure climbs noticeably as the heating warms up and falls again once it cools.
• The pressure relief valve discharges water during normal heating cycles.
• The pressure gauge fluctuates widely between cold and hot states.
• Water is found at the vessel's air valve, or the valve will not hold a charge.
• The vessel feels heavy or waterlogged when compared with an empty one of the same size.

• Confirm the existing vessel's capacity matches the 12 litre unit before ordering.
• Check the vessel fits the available space and that its connection aligns with the system pipework.
• Verify the system's required charge pressure against the vessel's setting as part of the installation.
• Confirm the appliance or system is one that uses an Altecnic expansion vessel.