Installation procedure
Installation of indoor unit
•When installing the cassette hind type indoor unit, a specially designed return air bellows shall be installed, as shown in Figure 3, Figure 4.
•The distance between the air duct outlet and the air conditioner air outlet shall not exceed 0.5 m.
Installing building roof 
*0.5m |
| A |
Ceiling |
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| Unit | Return air bellows |
Air supply Air outlet duct | Return air | |
Detail A | Figure 3 |
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Air outlet grille | Return air bellows | |
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Air supply
No obstacles within 1 m
Unit
Return air Figure 4
M8 broad foundation bolt
M8 suspension screw | Unit |
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M8 broad lock ring |
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M8 nut |
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| Figure 5 |
B | Air supply duct |
A
| Detail B |
| Detail A | |
B Rivet | B to mount the top |
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plate with screw | Unit top plate | |||
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| Air supply duct | Air supply duct |
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| Air outlet grille | |
| Figure | 6 |
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