The GRANT AERONA3 HOT WATER PRIORITY RELAY is a device designed for air source heat pump systems. It prioritises hot water over space heating, ensuring that you have hot water on demand.

Product Features:

• Hot Water Priority: The relay automatically closes the valve to the heating system when hot water is required, allowing the hot water cylinder to be heated using the full output of the heat pump.
• Space Heating Control: Once the hot water demand is met, the relay opens the valve to the heating system, enabling the heat pump to provide space heating as needed.
• Two Space Heating Zones: This relay is compatible with up to two space heating zones.

This compact and lightweight relay is a valuable addition to any air source heat pump system, ensuring efficient hot water delivery and optimal heating performance.