Storage domestic hot water tank KOSPEL SWPC-501.PL with spiral heat exchanger for heat pumps, 500 L

KOSPEL SWPC-501.PL with spiral heat exchanger is a 500‑litre vertical domestic hot water storage tank designed for use with heat pump systems. The tank provides a large capacity buffer for central hot water supply, offering thermal stratification and stable hot water delivery. An internal spiral coil transfers heat from the heat pump efficiently while the tank construction supports integration into residential and small commercial installations where reliable domestic hot water (DHW) storage is required.

Advantages

The spiral heat exchanger is integrated inside the cylinder to maximise heat transfer area while maintaining compact dimensions. Thermal stratification reduces mixing between temperature layers, improving overall efficiency and ensuring quicker access to hot water at the draw‑off point. The large 500 L capacity minimises the frequency of heating cycles for the heat pump and provides reserve hot water during peak demand. The tank is intended for straightforward hydraulic connection to heat pump circuits and typical DHW distribution systems.

Suitable for

• Residential buildings with a heat pump and central hot water distribution
• Small hotels, guesthouses or multi‑family homes requiring 500 L DHW storage
• Renovation projects where increased hot water capacity is needed
• Systems requiring efficient transfer from a heat pump via an internal coil

Key specifications

• Capacity: 500 litres of domestic hot water storage
• Type: vertical standing cylinder with internal spiral heat exchanger
• Heat exchanger: internal spiral coil designed for heat pump circuit connection
• Function: supports thermal stratification to maintain temperature layers
• Application: for central DHW systems in residential and small commercial installations

How to use

Connect the internal spiral heat exchanger to the heat pump circuit following hydraulic schematics supplied by the system designer or installer. Integrate the tank into the domestic hot water distribution network ensuring correct flow and return connections, proper venting and appropriate safety devices such as temperature and pressure relief valves. Commission the system by filling, venting air, and performing a controlled heat cycle to verify correct heat transfer from the heat pump and stable stratification. Regular inspection and maintenance of hydraulic connections and safety fittings will preserve performance.

Usage recommendations

Install the tank at a location that allows access for service and connection to the heat pump and DHW circulation. Use compatible materials and fittings for the heat pump circuit to avoid galvanic corrosion. Ensure the installation includes required safety and control devices (thermostats, pressure relief, expansion vessels) and follow local regulations and manufacturer guidance for commissioning and maintenance.