Pay in 4 interest-free payments of $8.50 Learn more
Ships within 48 hours · Estimated delivery Aug 11 - Aug 16
It continuously monitors the temperature difference between a tank sensor and a panel sensor which switches an external AC hot water circulating pump on to facilitate optimal overall system energy efficiency
Salmson pumps are the older models that were widely used in solar hot water systems
Please read the installation manual for more information
Pump not running or making noise
the controller will endeavour to heat the tank water to 75ºC
AVG Cold Water Expansion Valve ECV 15mm Green 850KPA related-hills-apollo-exceed-tank-solar-hot-water-sensor-controller It continuously monitors the temperatureExpansion Control Valve The Expansion Control Valve (ECV) is designed to relieve the increase in pressure caused by the water expansion during the normal heating cycle. It is recommended that an ECV be fitted to the cold water supply line. This will relieve cold water, not hot water, during the heating cycle saving energy and increasing the life of the Pressure Temperature Relief valve (PTR). Some local governments make it mandatory to install an ECV
US$ 60.00
US$ 15.00
US$ 125.00
US$ 185.00
