Italtecnica Sirio Manual Del Usuario página 31

I.2) Clean all traces of thermo-conductive paste from the dissipation plate. Use a cloth or some paper moistened with alcohol.
J.2) Apply a thin layer of thermo-conductive paste onto the bottom of the IGBT module and the bridge rectifier to be coupled with the
dissipation plate.
K.2) Assemble the new board and refit all the parts, repeating the same procedure but in reverse order.
CAUTION: after replacing the power board, the pressure and flow sensors must be calibrated as
described in chapter "5". If these adjustments are not made, the inverter will show incorrect pressure
values and the pump may not stop correctly!
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IT EN PT RU DE ES FR RO