Description
Grant Aerona3 Hot Water Priority Relay Relay gives hot water priority over the central heating system and is designed for one or two zone systems.
*When there is a demand for hot water, this relay will automatically close the valve to the heating system, allowing the hot water cylinder to be heated up
*Once the hot water demand has been satisfied, the relay allows the valve to the heating system to open, with the heat pump returning to provide space heating
*Grant UK also supply a hot water priority relay for up to four zones – please refer to Grant Part Code HPWPR2
