
The Grant HPIDSYSLLHKIT is a premium combined volumiser and low-loss header assembly engineered to provide essential hydraulic separation within high-performance air-source heat pump installations. Designed to bridge the gap between primary and secondary circuits, this robust unit prevents flow interference, ensuring that both the heat pump and the central heating system operate at peak efficiency. By managing water volume and balancing flow rates, it protects sensitive heat pump components from fluctuating system demands while maximizing overall thermal output. With a generous 70kW capacity, this kit is specifically built to handle the higher energy requirements of large-scale residential projects and light commercial environments. The integrated design simplifies the installation process, reducing the amount of pipework required while maintaining a clean, professional aesthetic in utility rooms or plant areas. By decoupling the circuits, the system prevents the pump from working against itself, which extends the lifespan of critical equipment and reduces energy consumption throughout the heating season. Reliable and durably constructed, the HPIDSYSLLHKIT is the ideal solution for installers looking to ensure a stable, efficient, and long-lasting hydraulic design for modern renewable heating setups, providing the necessary buffer required for defrost cycles and preventing short-cycling in high-demand configurations.
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