AVG Cold Water Expansion Valve ECV 15mm Green 850KPA related-hills-apollo-exceed-tank-solar-hot-water-sensor-controller If you are just replacing

If you are just replacing the tank sensor on your system

Salmson pumps are the older models that were widely used in solar hot water systems

Standard version for DN 40 to DN 65 pumps: PN 6/10 combination flange (PN 16 flange according to EN 1092-2) for PN 6 and PN 16 counter flanges

It continuously monitors the temperature difference between a tank sensor and a panel sensor which switches an external AC hot water circulating pump on to facilitate optimal overall system energy efficiency

The AVG Quickie R raised storage quick installation kit is the most comprehensive and versatile installation kit for storage hot water systems

AVG Cold Water Expansion Valve ECV 15mm Green 850KPA related-hills-apollo-exceed-tank-solar-hot-water-sensor-controller If you are just replacingExpansion Control Valve The Expansion Control Valve (ECV) is designed to relieve the increase in pressure caused by the water expansion during the normal heating cycle. It is recommended that an ECV be fitted to the cold water supply line. This will relieve cold water, not hot water, during the heating cycle saving energy and increasing the life of the Pressure Temperature Relief valve (PTR). Some local governments make it mandatory to install an ECV