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Water heater tank Saunier Duval SEW-1-400
The Saunier Duval SEW-1-400 storage water heater tank is designed to store and supply domestic hot water and to act as a thermal buffer within heating and DHW systems. Constructed for integration with residential and light commercial installations, this tank supports steady hot water delivery, reduces on/off cycling of pumps and boilers, and helps maintain system stability during peak demand periods.
The tank provides thermal storage capacity that evens out temperature fluctuations and improves the efficiency of connected heating equipment. Its compatibility with common domestic hot water distribution systems reduces pump cycling and wear on heat generators. The SEW-1-400 design is intended for straightforward installation in systems where a separate DHW buffer or storage vessel is required, offering predictable performance for balancing supply and demand.
Connect the SEW-1-400 tank to the heating circuit and domestic hot water distribution according to the project design and local plumbing codes. Ensure correct hydraulic connections for inlet, outlet and any recirculation return lines; install appropriate isolation valves, safety devices and expansion measures as required by the system. Commission the tank together with the boiler or heat source, checking for correct flow direction, pressure limits and temperature control settings before regular operation.
Use the tank as part of a properly sized system: verify that the 400-liter capacity matches expected hot water demand and heating source output. Schedule routine inspections for corrosion protection, insulation integrity and valve operation. Follow local regulations for safety devices, expansion vessel sizing and temperature/pressure relief arrangements to ensure safe and reliable operation.
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