Heatrae Water Heater Accessory Pack U2

For use with Heatrae Multipoint Standard Unvented High Pressure
Expansion Vessel, Check Valve, Pressure Relief (Expansion) Valve
The Expansion Vessel, when fully charged, will absorb all expanded water produced by the Multipoint heater during normal operation
The Check Valve prevents backflow of hot water and eliminates any possibility of cross-contamination between cold and hot water
The Expansion Valve, which opens at 6 bar (87 psi), acts as a back-up to the expansion vessel