Neil Sawers, Commercial Technical Manager at Grant UK explains why the company developed a low-loss header for heat pump installations.
As a manufacturer, we are always looking at ways we can develop our products including ways to make the installation more straightforward for engineers. One such example is the Grant combined volumiser and low-loss header which we have designed for installation with the Aerona³ air source heat pump.
Air source heat pumps have the potential to work incredibly efficiently and effectively. However, if they are installed incorrectly or the wider system is not set up correctly, the performance of the heat pump unit can be negatively affected. For example, flow rates and differentials play a significant part in helping a heat pump to work at its optimum efficiency – too high a flow rate will cause the refrigerant to condense at a higher rate, potentially causing icing issues on the evaporator whereas too low a flow rate may mean that there is insufficient power required. The flow rate must be protected and this is why we developed the Grant combined volumiser and low-loss header.
This volumiser/low-loss header creates a form of hydraulic separation which maintains the correct flow rate through the heat pump and it can also provide a suitable volume of system water that will allow the heat pump to fully modulate – installers simply need to enable their preferred set up. Essentially, this unit can maintain the flow rate/differential through the heat pump irrespective of the flow rate/differential required on the system side and it keeps the heat pump separate from the rest of the system. Simple to install, Grant’s combined volumiser/low-loss header protects the performance of the heat pump and it can also assist with diagnostics so it delivers multiple benefits throughout the heat pump’s lifespan.
www.grantuk.com/about/blog/the-case-for-the-low-loss-header
