Solar pump unit IVAR.SOLAR K - double pipe, electric pump - without regulation IVAR.SOLAR K2

Product detailed description

This solar pump unit is commonly used in residential and commercial solar thermal systems where a double pipe configuration is required. It is typically installed in systems where solar collectors are connected to a storage tank via a closed-loop circuit. The unit is designed for integration into systems with nominal pressure PN 6 and can handle operating temperatures up to +130 °C. Installers should ensure that the system design allows for the required flow and pressure conditions to maintain optimal performance.

The unit is suitable for use with glycol or water-based heat transfer fluids and is intended for installation in well-ventilated areas to prevent overheating. The pump is electrically powered and requires a stable electrical supply. The unit is not equipped with a control system and must be connected to an external regulation system if required.

Technical parameters

Operating temperature	+130 °C
Nominal pressure	PN 6
Diameter	18 mm
Code	IVSK8300
Brand	IVAR

The operating temperature of +130 °C indicates the maximum temperature the unit can handle without degradation of materials or performance. The nominal pressure of PN 6 defines the maximum pressure the unit is designed to withstand under normal operating conditions. The 18 mm diameter refers to the internal dimensions of the piping system and is important for ensuring correct flow rates and compatibility with other system components.Installation and connection The unit is connected via 3/4 inch internal threads on both the inlet and outlet. Installers should verify that the pipe diameters match the unit's specifications to avoid flow restrictions. The unit is supplied with a pressure relief valve, flow meter, pressure gauge, check valve, and temperature sensors pre-installed. It is important to ensure that the electrical connections are made according to the manufacturer's instructions and that the pump is grounded correctly. A common mistake during installation is incorrect orientation of the check valve, which can lead to backflow and system inefficiency. Installers should also ensure that the unit is mounted in a vertical position to allow proper operation of the internal components. The unit should be installed in a location that allows for easy access to the pressure gauge and flow meter for monitoring and maintenance purposes.

Compatibility and accessories

The unit is compatible with standard solar thermal systems using glycol or water as the heat transfer fluid. It is recommended to use the IVAR.2544 coupling for connecting pipes with a diameter of 22 mm or 18 mm. This coupling ensures a secure and leak-free connection. Additional components such as a control system (IVAR.SOLAR regulation) can be added separately but must be mounted externally due to the unit's design. For optimal performance, the unit should be integrated with a properly sized solar collector array and storage tank. It is important to ensure that the system is designed to handle the maximum operating temperature and pressure specified for the unit. The unit is not compatible with systems requiring automatic flow control or temperature regulation without the addition of an external control system.

Technical background for designers

The IVAR.SOLAR K unit operates by circulating the heat transfer fluid through the solar collectors and into the storage tank. The electric pump provides the necessary flow rate, while the pressure relief valve ensures that the system remains within safe operating limits. The flow meter and pressure gauge provide real-time monitoring of the system's performance. The unit is constructed using materials that are resistant to corrosion and thermal expansion, ensuring long-term reliability. The internal components are insulated to reduce heat loss and improve system efficiency. The design of the unit allows for easy integration into existing solar thermal systems, provided that the system is designed to accommodate the unit's operating parameters. The efficiency of the unit is influenced by the quality of the installation, the alignment of the solar collectors, and the overall system design. Proper insulation of the piping and components is essential to minimize heat loss and maintain system performance over time.

Service and operation

The unit requires regular inspection of the pressure gauge, flow meter, and pressure relief valve to ensure they are functioning correctly. The check valve should be inspected for signs of wear or blockage, which can affect the flow of the heat transfer fluid. The electrical connections should be checked for signs of corrosion or overheating. The unit does not require scheduled maintenance intervals, but it is recommended to perform a visual inspection at least once a year. Any issues with the pressure relief valve or flow meter should be addressed immediately to prevent system failure. The unit should be drained and flushed if the system is to be left unused for an extended period.

Frequently asked questions

Can the IVAR.SOLAR K be connected to an external regulation system?
Yes, the unit can be connected to an external regulation system. However, the regulation system must be mounted externally as the unit is not designed to accommodate it within the insulation.

What type of coupling is recommended for connecting the unit to the piping system?
For connecting pipes with a diameter of 22 mm or 18 mm, the IVAR.2544 coupling is recommended. This ensures a secure and leak-free connection.

Is the unit suitable for use with glycol-based heat transfer fluids?
Yes, the unit is suitable for use with glycol or water-based heat transfer fluids. The materials used in the construction of the unit are compatible with these fluids.

Can the unit be installed in a horizontal position?
No, the unit should be installed in a vertical position to ensure the correct operation of the internal components, particularly the check valve and pressure relief valve.