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For the connection of the mains and SSM lines
The controller does this by using sensors to sense both the solar panel and the tank water temperature
Delivery head
3 speed asynchronous circulator
generating steam and unnecessary stress to the solar systems
AVG Hot Water Expansion PTR Valve 15mm Blue 850KPA Compatible_Thermann For the connection of theHot Water Expansion PTR Valve 15mm Blue 850KPA The Pressure and Temperature Relief valve (PTR) is designed to relieve the increase in pressure caused by water expansion during the normal heating cycle. The valve will then relieve the increase in pressure by releasing drips of hot water to the drain line. Should the electrical temperature cut out device cease to operate correctly, the water will overheat. The temperature probe will then open the PTR
US$ 150.00
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