Hitachi YUTAKI S Series Instruction Manual page 40

UNIT INSTALLATION
6.1.4 Indoor unit main parts (Descriptions)
Nº Part
1 Indoor unit service cover
2 Unit controller frame
3 Unit controller
4 Piping connections
6.2 REMOVING THE COVERS
If it is necessary to access to the indoor unit components,
please follow these operations.
6.2.1 Removing the indoor unit service cover
?
N O T E
The indoor unit service cover needs to be removed for any task inside
the indoor unit.
1 Remove the screw which fixes the service cover.
22 PMML0574 rev.1 - 09/2021
1
2
3
4
2 Slide the service cover slightly upward and remove it pulling
to back.
!
C A U T I O N
• Pay attention of no falling off the service cover.
• Take care when removing service cover; the parts inside the unit
could be hot.
6.2.2 Removing indoor unit electrical box
!
D A N G E R
• 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).
Indicative
Switch
(SW1) label