Pressure expansion vessel - heating and cooling systems - 200l; 10bar; 1"; vertical with base IVAR.ERCE 200 - AQUAHOT

Product detailed description

Pressure expansion vessels are essential components in closed heating and cooling systems to accommodate thermal expansion of the fluid. This model is commonly used in residential and commercial buildings, including multi-family housing, industrial facilities and commercial buildings. Installers typically integrate these vessels into systems to prevent overpressure and maintain stable system operation across temperature fluctuations.

Correct sizing and installation are critical to ensure the vessel functions effectively. The vessel must be positioned in a location that allows for easy access for inspection and maintenance, and must be connected to the system in a way that minimises hydraulic resistance. The vertical orientation with base is ideal for installations with limited horizontal space.

Technical parameters

Installation and connection

Installation involves positioning the vessel vertically with the base in a stable location. The 1 inch connection requires appropriate fittings and sealing to prevent leaks. The vessel should be connected to the system via a dedicated expansion line, typically after the safety valve and before the pump. Ensure that the vessel is fully primed with air to the recommended pressure before commissioning. Common installation mistakes include incorrect orientation, failure to prime the vessel, and inadequate support for the base.

Compatibility and accessories

This vessel is compatible with standard heating and cooling systems that require expansion space management. It is recommended to use with pressure-reducing valves and safety valves to ensure system integrity. Accessories such as mounting brackets and pressure gauges may be required for complete installation. Refer to the manufacturer's technical data sheet for specific compatibility details.

Technical background for designers

The vessel operates on the principle of separating the expansion of the system fluid from the air chamber using an SBR membrane. This ensures that the system remains closed while allowing for thermal expansion. The SBR material is suitable for temperatures up to +80°C and can handle up to 50% concentration of antifreeze mixtures. The vessel integrates into the system via the 1 inch connection, and its performance is influenced by the system's operating temperature and pressure conditions. Long-term efficiency depends on maintaining the correct air pressure and avoiding exposure to temperatures beyond the recommended range.

Service and operation

Periodic checks are recommended to ensure the vessel maintains the correct air pressure and that the membrane is intact. No specific service intervals are provided in the brief. Installers should monitor the system for signs of overpressure or leakage, which may indicate a need for inspection or replacement of the vessel. The vessel should be drained and inspected if the system is to be decommissioned or if performance issues arise.

Frequently asked questions

Can this vessel be used with glycol-based systems?
Yes, the vessel is suitable for use with glycol-based systems, provided the concentration does not exceed 50%.

Is the vessel suitable for outdoor installation?
No, the vessel is designed for indoor installation due to the temperature range and material limitations.

What is the maximum operating temperature?
The maximum recommended operating temperature is +80°C, as specified in the technical data.

Can the vessel be mounted horizontally?
No, the vessel is designed for vertical installation with a base and should not be mounted horizontally.