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(3) Control circuit board (JT-30M3/JT-30M2)
1 Draw out the drain tank.
2 Unscrew the clamping screws, and remove the front panel.
(Two special screws 4×16, indicated by )
3 Unscrew the clamping screw, and remove the cover (micon).
(One special screw 4×16, indicated by )
4 Disconnect the lead wires from the control circuit board (JT-30M3/
JT-30M2).
5 Unscrew the clamping screw, and remove the control circuit board
(JT-30M3/JT-30M2).
(One special screw 4×12, indicated by )
Assembly precaution
Take care not to pinch the lead wires.
(4) Sensor circuit board (middle) (JT-30S2)
1 Remove the front panel. → See (3) 1 to 2.
2 Unscrew the clamping screws.
(Two PTT screws 4×16, indicated by )
3 Unscrew the clamping screws, and remove the sensor fix pieces
(middle).
(Two special screws 4×12, indicated by )
Assembly precaution
Take care not to pinch the lead wires.
4 Remove the sensor circuit boards (middle) (JT-30S2). (Two locations)
Assembly precautions
• Insert the sensor circuit board (middle) between the claws of the
sensor fix piece (middle).
• Take care not to pinch the lead wires.
• After installing the circuit board, make sure that the LED is upright.
─ 20 ─
Front panel
cover (micon)
Control circuit board
(JT-30M3/JT-30M2)
Sensor fix piece (middle)
Sensor fix piece (middle)
Sensor circuit board (middle)
(JT-30S2)

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