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Solar not performing as expected

phobia2011 · 2015-04-13 19:52:12

hi, i recently changed a solar pump and flow meter, they had been installed seperately on the line, i used a pre insulated sonnenkraft all in one, pump , flow meter, safety, expansion and fill/flush points. the system is a 90 tube installation, approx 5 years old over last 2 weeks the heat does not seem to be getting…

13-04-2015 7:52pm

#1

phobia2011

Registered Users, Registered Users 2 Posts: 1,298 ✭✭✭

Join Date: October 2011

Posts: 1245

hi,

i recently changed a solar pump and flow meter, they had been installed seperately on the line, i used a pre insulated sonnenkraft all in one, pump , flow meter, safety, expansion and fill/flush points.
the system is a 90 tube installation, approx 5 years old over last 2 weeks the heat does not seem to be getting generated at the panels, once it reaches required temp, the pump kicks in, runs for approx 2mins then off. with 90 tubes even on a dull day i would expect 30 odd degrees but it doesn't seem to generating heat as well as it was.

stat/controls etc are all working as they should.

what would cause the panels to not heat the water as well?

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