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Solar PV Not Diverting to the Cylinder

When there is an problem with diverting Solar PV to an iHP X, find the possible causes and solutions here.

Possible Issues

  • “Use Spare PV to Heat Tank” not enabled
  • CT Clamp incorrectly installed or not connected
  • Incorrect cabling to current reader/controller

Solution

  • Enable spare PV option in the PV Diverter Schedule
  • Ensure CT clamp is:
    • On the correct cable
    • Oriented toward mains fuse
    • Connected to Current Reader
  • Use full 8-conductor Cat5e/Cat6 cable from Current Reader to controller (J55 or mezzanine board zoneBus Out)