Maintenance
93
Operating Instructions HYGROPHIL® H 4230-10 Serie A BA 030520
6.10
Replacing the electronics board
● To replace the electronics board you must first dismount the display-/
profibus-board. Follow the instructions according to section 6.9 to this.
To avoid mistakes when reassembling you should note the positions of all
connections or mark them distinctive.
● Disconnect all cables and connectors.
● Disconnect the three pressure hoses carefully.
● Unscrew the seven attachment bolts.
Attention!
Do
not unscrew
the black plastics bolt in the bottom right
corner. It fixes components behind the board.
● Take the board carefully out and insert the replacement board.
● Fix the board with the four screws and reconnect all cable connections.
Do not unscrew !
PT 100 internal
Water pump
Proportional valve
PT 100 TT
PT 100 HT
Water sensor
Содержание HYGROPHIL H 4230-10 A Series
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