Storage vessel for domestic hot water CIMM ACS 03L, 2.5/10 bar, -10 to +100 °C

CIMM ACS 03L is a compact storage vessel designed for domestic hot water systems. It is built to store and stabilise potable water within a wide temperature range and to withstand the pressures typical of residential and light commercial installations. The vessel supports integration with boilers, solar thermal systems and heat-pump circuits where a small-volume buffer or expansion component is required.

Advantages

The vessel is rated for operating pressures up to 10 bar and down to 2.5 bar, offering reliable containment under varying system loads. Its operating temperature range from −10 °C to +100 °C makes it suitable for both freeze-prone conditions and high-temperature domestic hot water applications. The compact form factor facilitates installation in confined spaces and enables easy connection to existing plumbing, heating and renewable energy circuits. Materials and construction are selected to meet domestic hot water safety and durability expectations.

Suitable for

• Small domestic hot water buffer in residential plumbing systems
• Integration with boilers and water heaters to stabilise supply temperature
• Connection to solar thermal or heat-pump circuits as a low-volume expansion vessel
• Use in light commercial installations with limited space

Key specifications

• Volume: 3 litres
• Operating pressure: range from 2.5 bar (minimum) to 10 bar (maximum)
• Temperature range: −10 °C to +100 °C
• Application: intended for domestic hot water (potable water) systems
• Design: compact, suitable for tight installation spaces

How to use

Install the storage vessel in accordance with local plumbing and heating regulations, ensuring correct orientation and secure mounting. Connect the vessel to the domestic hot water circuit, boiler, solar thermal or heat-pump loop using appropriate fittings and pipework rated for the system pressures and temperatures. Verify that system pressure is within the vessel’s operating range before commissioning. During initial start-up and after any maintenance, check for leaks and proper integration with expansion and safety devices.

Usage recommendations

Ensure regular inspection of connections and pressure relief devices, and follow manufacturer or installer guidance for periodic system checks. When used with glycol-based heat-transfer fluids, confirm compatibility of all materials and adjust maintenance intervals according to system design and operating conditions.