Grant's Aero ł Hot Water Priority 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
Technical specification
Waist Sizeaa65cg13fwTypeWater Priority RelaySupplier Part NumberHPWPR1Range DescriptionAerona3Brand NameGrant