65
PMEN0654 rev.0 - 12/2023
15
GENERAL CONSIDERATIONS
MAINTENANCE
15.1 General consideraons
! DANGER
• Turn OFF the power source before the maintenance work. If not, it may cause a re or an
electric shock.
• Perform the maintenance work with stable foong. If not, it may cause falling or injury.
NOTE
Do not operate the system without the air lter to protect the indoor unit heat exchanger against
being clogged.
◆ Maintenance beginning and ending of use
Beginning of use
Remove obstacles for the air inlet grilles of indoor unit and outdoor unit and the air outlet.
Check that the air lter is not clogged.
Ending of use
Clean the air lter, the air inlet grille and the at panel.
15.2 General maintenance work
For the indoor unit and the outdoor unit
1 Fan and fan motor
✓ Lubricaon: All the fan motors are pre-lubricated and sealed at the factory. Therefore no
lubricaon maintenance is required.
✓ Sound and vibraon: Check for abnormal sounds and vibraons.
✓ Insulaon: Check the electrical insulaon resistance.
2 Heat exchanger
✓ Clog: Inspect the heat exchanger at regular intervals and remove any accumulated dirt and
any accumulated dust from the heat exchanger. You should also remove from the outdoor
units other obstacles such as the growing grass and the pieces of paper which might restrict
the airow.
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