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3
INSTALLATION OF INDOOR UNIT
WARNING
Install the air conditioner certainly at a place to sufficiently withstand the weight.
If the strength is insufficient, the unit may fall down resulting in human injury.
Perform a specified installation work to guard against an earthquake.
An incomplete installation can cause accidents by the units falling and dropping.
Return air methed is choiced from rear or under direction as shown in figure.
• If a system to suck in air directly from the bottom of the unit is adopted, the noise level increases.
It is recommended to mount the return duct so that air is not directly sucked in.
Installation procedure
1. Lay drain pipes, refrigerant pipes, and connecting
cables under wall or ceiling concurrently with
supply/drain water work and piping work.
6. Mount the switch panel and set switches
2. Install the mounting frames of supply/return air
panels
3. Positioning of refrigerant and drain pipes
5. Connect cables and pipes
4. Install the indoor unit
• Preparation for installation
• Setting/fixing of indoor unit
7. Install supply/return air panels
8. Mount thermal insulation
9. Mount check port
Return air from rear side
Return air from below side
NOTE :
For installation of the outdoor unit, refer to the
Installation manual (Packed in the outdoor unit).
