13.1.4.2 Removing indoor unit electrical box
! DANGER
• Disconnect the unit from the power supply before touching any of the parts in order to avoid an electrical shock.
• Do not touch the switch for DHW tank heater operation when handling the electrical box. Keep the position of this switch in factory
setting position (“Automatic” operation).
Switch
(SW1)
Indicative
label
Removing the electrical box
If there is a need of accessing to the indoor unit internal parts from the front, follow these steps:
1 Remove the indoor unit front cover.
2 Unscrew the 2 front screws and the 2 lower screws which xes the electrical box to the unit structure.
3 Take out the electrical box from the indoor unit until it has passed the edge. Choose one of the following steps:
a. Electrical box can be rotated 90º approximately, making easy the indoor unit component’s accessibility, without the necessity
to remove all the electrical box.
b. If it is needed, the electrical box can be completely extracted by disconnecting all the necessary wiring. Please, refer to the
“Servicing” chapter of the “Service Manual” for the specic instructions.
! CAUTION
Take care with the electrical box components in order to avoid damaging it.
MAINTENANCE
PMML0575 rev.2 - 03/2022
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