Hitachi UTOPIA R32 Series - 15.1 General Considerations; 15.2 General Maintenance Work

65
PMEN0654 rev.0 - 12/2023
15
GENERAL CONSIDERATIONS
MAINTENANCE
15.1 General consideraons
! 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 foong. 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
✓ Lubricaon: All the fan motors are pre-lubricated and sealed at the factory. Therefore no
lubricaon maintenance is required.
✓ Sound and vibraon: Check for abnormal sounds and vibraons.
✓ Insulaon: Check the electrical insulaon 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 airow.