186
2 Remote controller 1.How to remove
1)Perform the step 1-1.
2)Remove the remote controller from the holder using
a flat-blade screwdriver. (Release the stopper.)
3)Disconnect the remote controller cable from the
terminal block on the back side of the remote
controller.
2.How to attach
1)Attach it in the reverse order of the removal.
3 Water heat exchange
control board
1. Main board (MCC-1753)
Detachment (Main board)
1)Perform the step 1-1.
For 1 minute after the power is turned off, do not
disassemble the inverter to prevent an electric shock.
2)Remove all connectors connected to the main board
and a screw. (Ø4 × 6, 1 screw)
3)Detach the main board from 5 supporters.
When removing the connectors, release the safety lock
of the housing.
Attachment (Main board)
Attach the new main board in the reverse process of
“Detachment (Main board)”.
Refer to the wiring diagram for connector connections.
2. Sub board (MCC-1755)
Detachment (Sub board)
1)Perform the step 1-1.
For 1 minute after the power is turned off, do not
disassemble the inverter to prevent an electric shock.
2)Remove all connectors connected to the sub board
and a screw. (Ø4 × 6, 1 screw)
3)Detach the sub board from 5 supporters.
When removing the connectors, release the safety lock
of the housing.
Attachment (Sub board)
Attach the new Sub board in the reverse process of
“Detachment (Sub board)”.
Refer to the wiring diagram for connector connections.
No.
Exchange parts name
Work procedure Remarks
Remote
controller holder
Remote
controller
m
r
ll
r
Main
board
Sub
board
Screw
Supporters
Supporters
Screw
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